WO2016052268A1 - 感光性樹脂組成物、硬化膜、硬化膜を具備する素子及び半導体装置の製造方法 - Google Patents
感光性樹脂組成物、硬化膜、硬化膜を具備する素子及び半導体装置の製造方法 Download PDFInfo
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- WO2016052268A1 WO2016052268A1 PCT/JP2015/076713 JP2015076713W WO2016052268A1 WO 2016052268 A1 WO2016052268 A1 WO 2016052268A1 JP 2015076713 W JP2015076713 W JP 2015076713W WO 2016052268 A1 WO2016052268 A1 WO 2016052268A1
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- PFNQVRZLDWYSCW-UHFFFAOYSA-N (fluoren-9-ylideneamino) n-naphthalen-1-ylcarbamate Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1=NOC(=O)NC1=CC=CC2=CC=CC=C12 PFNQVRZLDWYSCW-UHFFFAOYSA-N 0.000 claims description 3
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- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims 1
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- 230000015572 biosynthetic process Effects 0.000 abstract description 50
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- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
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- PJIFJEUHCQYNHO-UHFFFAOYSA-N diethoxy-(3-isocyanatopropyl)-methylsilane Chemical compound CCO[Si](C)(OCC)CCCN=C=O PJIFJEUHCQYNHO-UHFFFAOYSA-N 0.000 description 2
- XIUNYQUKQRXKHV-UHFFFAOYSA-N dimethoxy(4-propylheptan-4-yloxy)silane Chemical compound C(CC)C(O[SiH](OC)OC)(CCC)CCC XIUNYQUKQRXKHV-UHFFFAOYSA-N 0.000 description 2
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- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
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- 238000000921 elemental analysis Methods 0.000 description 2
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- DFJDZTPFNSXNAX-UHFFFAOYSA-N ethoxy(triethyl)silane Chemical compound CCO[Si](CC)(CC)CC DFJDZTPFNSXNAX-UHFFFAOYSA-N 0.000 description 2
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- VWDZMQBFSAGPQS-UHFFFAOYSA-N ethoxy-[ethoxy(diethyl)silyl]oxy-diethylsilane Chemical compound CCO[Si](CC)(CC)O[Si](CC)(CC)OCC VWDZMQBFSAGPQS-UHFFFAOYSA-N 0.000 description 2
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- XPKFLEVLLPKCIW-UHFFFAOYSA-N ethyl 4-(diethylamino)benzoate Chemical compound CCOC(=O)C1=CC=C(N(CC)CC)C=C1 XPKFLEVLLPKCIW-UHFFFAOYSA-N 0.000 description 2
- MYEJNNDSIXAGNK-UHFFFAOYSA-N ethyl-tri(propan-2-yloxy)silane Chemical compound CC(C)O[Si](CC)(OC(C)C)OC(C)C MYEJNNDSIXAGNK-UHFFFAOYSA-N 0.000 description 2
- UPWPDUACHOATKO-UHFFFAOYSA-K gallium trichloride Chemical compound Cl[Ga](Cl)Cl UPWPDUACHOATKO-UHFFFAOYSA-K 0.000 description 2
- 229910000078 germane Inorganic materials 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
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- 125000001188 haloalkyl group Chemical group 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
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- 229910000042 hydrogen bromide Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
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- 229910000043 hydrogen iodide Inorganic materials 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
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- 230000006872 improvement Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
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- 230000001788 irregular Effects 0.000 description 2
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- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
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- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 2
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- 239000000155 melt Substances 0.000 description 2
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- POPACFLNWGUDSR-UHFFFAOYSA-N methoxy(trimethyl)silane Chemical compound CO[Si](C)(C)C POPACFLNWGUDSR-UHFFFAOYSA-N 0.000 description 2
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- 229940057867 methyl lactate Drugs 0.000 description 2
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- HLXDKGBELJJMHR-UHFFFAOYSA-N methyl-tri(propan-2-yloxy)silane Chemical compound CC(C)O[Si](C)(OC(C)C)OC(C)C HLXDKGBELJJMHR-UHFFFAOYSA-N 0.000 description 2
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- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 2
- KBJFYLLAMSZSOG-UHFFFAOYSA-N n-(3-trimethoxysilylpropyl)aniline Chemical compound CO[Si](OC)(OC)CCCNC1=CC=CC=C1 KBJFYLLAMSZSOG-UHFFFAOYSA-N 0.000 description 2
- IFPHDUVGLXEIOQ-UHFFFAOYSA-N ortho-iodosylbenzoic acid Chemical compound OC(=O)C1=CC=CC=C1I=O IFPHDUVGLXEIOQ-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 125000003356 phenylsulfanyl group Chemical group [*]SC1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 2
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- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- OBCUTHMOOONNBS-UHFFFAOYSA-N phosphorus pentafluoride Chemical compound FP(F)(F)(F)F OBCUTHMOOONNBS-UHFFFAOYSA-N 0.000 description 2
- WKFBZNUBXWCCHG-UHFFFAOYSA-N phosphorus trifluoride Chemical compound FP(F)F WKFBZNUBXWCCHG-UHFFFAOYSA-N 0.000 description 2
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 description 2
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- 229920002223 polystyrene Polymers 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
- 239000011698 potassium fluoride Substances 0.000 description 2
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- 238000007142 ring opening reaction Methods 0.000 description 2
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- 229910052711 selenium Inorganic materials 0.000 description 2
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- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 2
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- BOVWGKNFLVZRDU-UHFFFAOYSA-N triethoxy(trifluoromethyl)silane Chemical compound CCO[Si](OCC)(OCC)C(F)(F)F BOVWGKNFLVZRDU-UHFFFAOYSA-N 0.000 description 2
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- LGROXJWYRXANBB-UHFFFAOYSA-N trimethoxy(propan-2-yl)silane Chemical compound CO[Si](OC)(OC)C(C)C LGROXJWYRXANBB-UHFFFAOYSA-N 0.000 description 2
- ORVBHOQTQDOUIW-UHFFFAOYSA-N trimethoxy(trifluoromethyl)silane Chemical compound CO[Si](OC)(OC)C(F)(F)F ORVBHOQTQDOUIW-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
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- NXHILIPIEUBEPD-UHFFFAOYSA-H tungsten hexafluoride Chemical compound F[W](F)(F)(F)(F)F NXHILIPIEUBEPD-UHFFFAOYSA-H 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- IGELFKKMDLGCJO-UHFFFAOYSA-N xenon difluoride Chemical compound F[Xe]F IGELFKKMDLGCJO-UHFFFAOYSA-N 0.000 description 2
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- CNGTXGHYZBQUQS-UHFFFAOYSA-N ((1-(2-methoxyethoxy)ethoxy)methyl)benzene Chemical compound COCCOC(C)OCC1=CC=CC=C1 CNGTXGHYZBQUQS-UHFFFAOYSA-N 0.000 description 1
- GWPGIMPAYBUFNS-UHFFFAOYSA-N (1,3-dioxo-3a,4,7,7a-tetrahydro-octahydro-1h-4,7-epoxyisoindol-2-yl) 2-(trifluoromethyl)benzenesulfonate Chemical compound FC(F)(F)C1=CC=CC=C1S(=O)(=O)ON1C(=O)C2C(C=C3)OC3C2C1=O GWPGIMPAYBUFNS-UHFFFAOYSA-N 0.000 description 1
- YIWZAOFAGICWPI-UHFFFAOYSA-N (1,3-dioxo-3a,4,7,7a-tetrahydro-octahydro-1h-4,7-epoxyisoindol-2-yl) 4-fluorobenzenesulfonate Chemical compound C1=CC(F)=CC=C1S(=O)(=O)ON1C(=O)C2C(C=C3)OC3C2C1=O YIWZAOFAGICWPI-UHFFFAOYSA-N 0.000 description 1
- UTCZYUIKQJWABL-UHFFFAOYSA-N (1,3-dioxo-3a,4,7,7a-tetrahydro-octahydro-1h-4,7-epoxyisoindol-2-yl) 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)ON1C(=O)C2C(C=C3)OC3C2C1=O UTCZYUIKQJWABL-UHFFFAOYSA-N 0.000 description 1
- BLNQNFIRJCEFCG-UHFFFAOYSA-N (1,3-dioxo-7,7a-dihydro-3ah-octahydro-1h-4,7-epoxyisoindol-4-yl) trifluoromethanesulfonate Chemical compound O=C1NC(=O)C2C1C1(OS(=O)(=O)C(F)(F)F)C=CC2O1 BLNQNFIRJCEFCG-UHFFFAOYSA-N 0.000 description 1
- ZVBBBYXVYYKYOM-UHFFFAOYSA-N (1,3-dioxoisoindol-2-yl) 2-fluorobenzenesulfonate Chemical compound FC1=CC=CC=C1S(=O)(=O)ON1C(=O)C2=CC=CC=C2C1=O ZVBBBYXVYYKYOM-UHFFFAOYSA-N 0.000 description 1
- GYXAHUXQRATWDV-UHFFFAOYSA-N (1,3-dioxoisoindol-2-yl) trifluoromethanesulfonate Chemical compound C1=CC=C2C(=O)N(OS(=O)(=O)C(F)(F)F)C(=O)C2=C1 GYXAHUXQRATWDV-UHFFFAOYSA-N 0.000 description 1
- KJQMOWSYAHQLGC-UHFFFAOYSA-N (1-phenylethylideneamino) butanoate Chemical compound CCCC(=O)ON=C(C)C1=CC=CC=C1 KJQMOWSYAHQLGC-UHFFFAOYSA-N 0.000 description 1
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- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/40—Treatment after imagewise removal, e.g. baking
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
Definitions
- the present invention relates to a photosensitive resin composition, a cured film using the same, an element, and a method for manufacturing a semiconductor device.
- a resist such as a photoresist is used to form an impurity region in a semiconductor substrate.
- a method for forming the impurity region for example, a method in which the element is ionized from a compound containing the element that forms the impurity region and collides with the semiconductor substrate (hereinafter, “ion implantation”), or an element that forms the impurity region And a method of exposing a compound containing a semiconductor substrate (hereinafter referred to as “dopant exposure”).
- a resist film formed on a semiconductor substrate is irradiated with active actinic radiation through a mask or reticle having a desired pattern, developed with a developer, and heated to be cured (hereinafter referred to as “thermal curing”).
- thermal curing a cured pattern of the resist film is formed.
- an impurity region having a desired pattern is formed by ion implantation or dopant exposure.
- a high resolution pattern processability is required for the ion implantation mask and the dopant exposure mask in order to form the impurity region in a desired pattern.
- the ion implantation temperature at the time of ion implantation is low, there is a concern that damage to the crystal structure of the substrate due to ions colliding with the substrate remains, and a low resistance layer cannot be formed.
- the dopant exposure temperature at the time of dopant exposure is low, there is a concern that the diffusion of ions into the substrate becomes insufficient and a low resistance layer cannot be formed.
- the ion implantation mask is required to have high heat resistance and crack resistance that can withstand the impact during ion implantation.
- a photoresist is excellent in high resolution pattern processability, but has poor heat resistance.
- the SiO 2 (silicon dioxide) film formed by the CVD (Chemical Vapor Deposition) method can be patterned by dry etching using a photoresist in order to form a fine pattern. Is required. Therefore, there is a problem that the process becomes complicated. Accordingly, there has been a demand for a photosensitive resin composition capable of forming a high-resolution pattern and having high heat resistance and high crack resistance.
- the resist film when an impurity region is formed in a semiconductor substrate, the resist film may be altered by the reaction between the liquid or gas used in the dopant exposure and the resist film, ion implantation into the resist film, or dopant exposure. Furthermore, depending on the composition of the resist film, the organic matter in the resist film may be altered to produce a hardly soluble compound. Due to such alteration of the resist film in the formation of the impurity region, the solubility of the resist film in the resist stripping solution is deteriorated, causing a residue after the resist film is removed. Accordingly, there has been a demand for a method for removing a resist film or a cured film that has been altered in the formation of impurity regions without residue.
- a photosensitive resin composition having high heat resistance a photosensitive resin composition containing polysiloxane is known and used as a cured film such as an insulating film.
- polysiloxane, naphthoquinone diazide compound, or positive or negative photosensitive resin composition containing a photoacid generator or photocrosslinking agent see, for example, Patent Document 1
- positive containing polysiloxane and naphthoquinone diazide compound See, for example, Patent Document 2.
- any of the conventionally known photosensitive resin compositions containing polysiloxane has insufficient properties for use as an ion implantation mask material. Specifically, any of high resolution, heat resistance, or crack resistance was insufficient.
- an object of the present invention is to provide a photosensitive resin composition capable of forming a high-resolution pattern, obtaining a cured film excellent in heat resistance and crack resistance, and capable of alkali development. .
- the cured film of the composition containing polysiloxane may not be easily removed or a complicated process may be required for removal.
- the present invention provides a method capable of easily removing a cured film of a composition without residue after forming an impurity region on a semiconductor substrate, and a method for shortening a process required for the removal, and a method for manufacturing a semiconductor device using the same. For the purpose.
- (A) is a photosensitive resin composition containing polysiloxane
- the (A) polysiloxane is a polysiloxane represented by the general formula (1),
- R 1 to R 3 each independently represents hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group or an aryl group
- R 7 to R 9 , Y 1 and Y 2 are Each independently represents hydrogen, an alkyl group, an acyl group, an aryl group, a polysiloxane polymer chain, or a substituent represented by the general formula (7), where n and m are each independently an integer of 1 or more. And l represents an integer of 0 or more.
- R 4 to R 6 each independently represents hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, or an aryl group.
- the content ratio of the organosilane unit represented by the general formula (2) in the (A) polysiloxane is the Si atom mol ratio (X) mol%, and the organosilane unit represented by the general formula (3) The content ratio of (Y) mol% in terms of Si atom mol ratio,
- R 1 and R 2 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, or an aryl group.
- R 7 and R 8 each independently represent hydrogen, an alkyl group, an acyl group, an aryl group, a polysiloxane polymer chain, or a substituent represented by General Formula (7).
- a photosensitive resin composition characterized in that (X) and (Y) satisfy the formulas (4) to (6).
- a high-resolution pattern can be formed, and a cured film excellent in heat resistance and crack resistance can be obtained.
- a high-resolution pattern can be formed, and a cured film having excellent heat resistance and crack resistance can be obtained. Therefore, after the formation of the impurity region on the semiconductor substrate, it is possible to shorten the process required for removing the cured film of the composition, and to shorten the process time.
- Process drawing which shows the ion implantation process at the time of using the photosensitive resin composition of this invention for an ion implantation mask resist Schematic diagram of etching process and ion implantation process in the present invention
- Infrared spectroscopy (IR) spectrum before and after firing of the pattern of the photosensitive resin composition of the present invention
- the photosensitive resin composition of the present invention is a photosensitive resin composition containing (A) polysiloxane, and the (A) polysiloxane is a polysiloxane represented by the general formula (1), ( A) The content ratio of the organosilane unit represented by the general formula (2) in the polysiloxane is Si atom mol ratio (X) mol%, and the content of the organosilane unit represented by the general formula (3) The ratio is Si atom mol ratio (Y) mol%, and (X) and (Y) are represented by general formulas (4) to (6).
- R 1 to R 3 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, or an aryl group
- R 7 to R 9 , Y 1, and Y 2 are each Independently, it represents a hydrogen, an alkyl group, an acyl group, an aryl group, a polysiloxane polymer chain, or a substituent represented by the general formula (7).
- n and m each independently represent an integer of 1 or more, and l represents an integer of 0 or more.
- R 4 to R 6 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, or an aryl group.
- R 1 and R 2 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, or an aryl group.
- R 7 and R 8 each independently represent hydrogen, an alkyl group, an acyl group, an aryl group, a polysiloxane polymer chain, or a substituent represented by the general formula (7).
- the photosensitive resin composition of the present invention contains (A) polysiloxane.
- (A) Polysiloxane is a thermosetting resin, and a high heat-resistant siloxane bond (Si—O) is formed by thermosetting at high temperature and dehydrating and condensing. Therefore, the heat resistance and crack resistance of the obtained cured film can be improved by adding (A) polysiloxane having a high heat-resistant siloxane bond to the resin composition. Therefore, it is suitable when the cured film is used as an ion implantation mask, a dopant exposure mask, a dry etching mask, or a wet etching mask.
- the polysiloxane used in the present invention is a polysiloxane represented by the general formula (1).
- R 1 to R 3 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, or an aryl group
- R 7 to R 9 , Y 1, and Y 2 are each Independently, it represents a hydrogen, an alkyl group, an acyl group, an aryl group, a polysiloxane polymer chain, or a substituent represented by the general formula (7).
- n and m each independently represent an integer of 1 or more, and l represents an integer of 0 or more.
- R 1 to R 3 each independently represent hydrogen, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or carbon Preferred is an aryl group having 6 to 15 carbon atoms, more preferably hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an aryl group having 6 to 10 carbon atoms. preferable.
- R 7 to R 9 , Y 1 and Y 2 are each independently hydrogen, an alkyl group having 1 to 6 carbon atoms, an acyl group having 2 to 6 carbon atoms, an aryl group having 6 to 15 carbon atoms, a poly group Preferred is a siloxane polymer chain or a substituent represented by the general formula (7): hydrogen, alkyl group having 1 to 4 carbon atoms, acyl group having 2 to 4 carbon atoms, aryl group having 6 to 10 carbon atoms, polysiloxane
- the polymer chain or the substituent represented by the general formula (7) is more preferable.
- alkyl group, cycloalkyl group, alkenyl group, aryl group and acyl group may be either unsubstituted or substituted.
- Examples of the alkyl group represented by R 1 to R 3 in the general formula (1) include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a t-butyl group, an n-hexyl group, and an n- A decyl group is mentioned.
- examples of the substituent include a halogen atom, an epoxy group, a glycidyl group, an oxetanyl group, an amino group, a mercapto group, and an isocyanate group.
- examples of R 1 to R 3 include trifluoromethyl group, 3,3,3-trifluoropropyl group, 3-glycidoxypropyl group, 2- (3,4- Examples thereof include an epoxycyclohexyl) ethyl group, a 3-[(3-ethyl-3-oxetanyl) methoxy] propyl group, a 3-aminopropyl group, a 3-mercaptopropyl group, and a 3-isocyanatopropyl group.
- Examples of the cycloalkyl group represented by R 1 to R 3 in the general formula (1) include a cyclopentyl group and a cyclohexyl group.
- examples of the substituent include a halogen atom, an epoxy group, a glycidyl group, an oxetanyl group, an amino group, a mercapto group, and an isocyanate group.
- Examples of the alkenyl group of R 1 to R 3 in the general formula (1) and the substituted product thereof include a vinyl group, an allyl group, a 3- (meth) acryloxypropyl group, and a 2- (meth) acryloxyethyl group. It is done.
- Examples of the aryl group represented by R 1 to R 3 in the general formula (1) and the substituted product thereof include a phenyl group, a 4-tolyl group, a 4-hydroxyphenyl group, a 4-methoxyphenyl group, and a 4-t-butylphenyl group.
- Examples of the alkyl group of R 7 to R 9 , Y 1 and Y 2 in the general formula (1) include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, and an n-butyl group.
- Examples of the acyl group of R 7 to R 9 , Y 1 and Y 2 in the general formula (1) include an acetyl group.
- Examples of the aryl group represented by R 7 to R 9 , Y 1 and Y 2 in the general formula (1) include a phenyl group, a 4-tolyl group, a 4-hydroxyphenyl group, a 4-methoxyphenyl group, and 4-t-butyl. Examples thereof include a phenyl group and a 1-naphthyl group.
- R 4 to R 6 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, or an aryl group.
- R 4 to R 6 each independently represent hydrogen, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or carbon Preferred is an aryl group having 6 to 15 carbon atoms, more preferably hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an aryl group having 6 to 10 carbon atoms.
- the alkyl group, cycloalkyl group, alkenyl group and aryl group may be either unsubstituted or substituted.
- the content ratio of the organosilane unit represented by the general formula (2) in the polysiloxane is (X) mol% in terms of Si atom mol ratio, and the organosilane unit represented by the general formula (3).
- the content ratio is (Y) mol% in terms of Si atom mol ratio, and (X) and (Y) are the content ratios represented by the general formulas (4) to (6).
- R 1 and R 2 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, or an aryl group.
- R 7 and R 8 each independently represent hydrogen, an alkyl group, an acyl group, an aryl group, a polysiloxane polymer chain, or a substituent represented by the general formula (7).
- R 1 and R 2 are each independently hydrogen, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or carbon.
- Preferred is an aryl group having 6 to 15 carbon atoms, more preferably hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an aryl group having 6 to 10 carbon atoms. preferable.
- R 7 and R 8 are each independently hydrogen, an alkyl group having 1 to 6 carbon atoms, an acyl group having 2 to 6 carbon atoms, an aryl group having 6 to 15 carbon atoms, polysiloxane
- a substituent represented by the general formula (7) is preferably hydrogen, an alkyl group having 1 to 4 carbon atoms, an acyl group having 2 to 4 carbon atoms, an aryl group having 6 to 10 carbon atoms, or a polysiloxane.
- the substituent represented by the polymer chain or the general formula (7) is more preferable.
- the alkyl group, cycloalkyl group, alkenyl group, aryl group and acyl group may be either unsubstituted or substituted.
- Examples of the alkyl group represented by R 1 and R 2 in the general formula (2) include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a t-butyl group, an n-hexyl group, and an n- A decyl group is mentioned.
- examples of the substituent include a halogen atom, an epoxy group, a glycidyl group, an oxetanyl group, an amino group, a mercapto group, and an isocyanate group.
- examples of R 1 and R 2 include trifluoromethyl group, 3,3,3-trifluoropropyl group, 3-glycidoxypropyl group, 2- (3,4- Examples thereof include an epoxycyclohexyl) ethyl group, a 3-[(3-ethyl-3-oxetanyl) methoxy] propyl group, a 3-aminopropyl group, a 3-mercaptopropyl group, and a 3-isocyanatopropyl group.
- a cycloalkyl group of R ⁇ 1 > and R ⁇ 2 > of General formula (2) a cyclopentyl group or a cyclohexyl group is mentioned, for example.
- substituents include a halogen atom, an epoxy group, a glycidyl group, an oxetanyl group, an amino group, a mercapto group, and an isocyanate group.
- Examples of the alkenyl group of R 1 and R 2 in the general formula (2) and the substituted product thereof include a vinyl group, an allyl group, a 3- (meth) acryloxypropyl group, and a 2- (meth) acryloxyethyl group. It is done.
- Examples of the aryl group of R 1 and R 2 in the general formula (2) and the substituted product thereof include a phenyl group, a 4-tolyl group, a 4-hydroxyphenyl group, a 4-methoxyphenyl group, and a 4-t-butylphenyl group.
- Examples of the alkyl group represented by R 7 and R 8 in the general formula (3) include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, and an n-butyl group.
- Examples of the acyl group of R 7 and R 8 in the general formula (3) include an acetyl group.
- Examples of the aryl group represented by R 7 and R 8 in the general formula (3) include a phenyl group, a 4-tolyl group, a 4-hydroxyphenyl group, a 4-methoxyphenyl group, a 4-t-butylphenyl group, and 1-naphthyl. Groups.
- the crack resistance of the cured film obtained from the photosensitive resin composition of the present invention at the time of thermosetting and ion implantation can be improved.
- the organosilane unit represented by the general formula (3) By containing the organosilane unit represented by the general formula (3), the generation of residues after development is suppressed without impairing the heat resistance and transparency of the cured film obtained from the photosensitive resin composition of the present invention. The resolution after development can be improved.
- organosilane having an organosilane unit represented by the general formula (2) examples include dimethyldimethoxysilane, dimethyldiethoxysilane, dimethyldiacetoxysilane, diethyldimethoxysilane, diethyldiethoxysilane, and di-n-propyldimethoxy.
- Silane di-n-propyldiethoxysilane, diisopropyldimethoxysilane, diisopropyldiethoxysilane, di-n-butyldimethoxysilane, diisobutyldimethoxysilane, dicyclopentyldimethoxysilane, cyclohexylmethyldimethoxysilane, methylvinyldimethoxysilane, divinyldiethoxy Silane, 3-methacryloxypropylmethyldimethoxysilane, 3-methacryloxypropylmethyldiethoxysilane, 3-acryloxypropylmethyl Methoxysilane, 3-acryloxypropylmethyldiethoxysilane, diphenyldimethoxysilane, diphenyldiethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 3-glycidoxypropylmethyldiethoxysilane, N- (2-aminoethyl)
- organosilane having an organosilane unit represented by the general formula (3) examples include tetramethoxysilane, tetraethoxysilane, tetra-n-propoxysilane, tetraisopropoxysilane, tetra-n-butoxysilane, and tetraacetoxy.
- Tetrafunctional silanes such as silane, methyl silicate 51 (manufactured by Fuso Chemical Industry Co., Ltd.), M silicate 51, silicate 40 or silicate 45 (both of which are manufactured by Tama Chemical Industry Co., Ltd.) or methyl silicate 51, methyl silicate 53A And silicate compounds such as ethyl silicate 40 or ethyl silicate 48 (all of which are manufactured by Colcoat Co., Ltd.).
- the content ratio of the organosilane unit represented by the general formula (2) in the polysiloxane is 7.5 to 75 mol%, preferably 15 to 75 mol%, and preferably 24 to 75 mol% in terms of Si atom mol ratio. Is more preferable, and 36 to 70 mol% is more preferable.
- Si atom mol ratio derived from the organosilane unit represented by the general formula (2) is within the above range, both high resolution and crack resistance can be achieved.
- the content ratio of the organosilane unit represented by the general formula (2) is less than 7.5 mol%, crack resistance of the cured film obtained from the photosensitive resin composition of the present invention at the time of thermal curing or ion implantation There are cases where the effect of improving the property is insufficient. On the other hand, when it exceeds 75 mol%, it may cause deterioration of the pattern shape after thermosetting, a decrease in resolution after development or after thermosetting, and generation of residues after development.
- the content ratio of the organosilane unit represented by the general formula (3) in the polysiloxane is 2.5 to 40 mol%, preferably 5 to 40 mol%, more preferably 8 to 40 mol% in terms of Si atom mol ratio. Is more preferable, and 12 to 40 mol% is more preferable.
- Si atom mol ratio derived from the organosilane unit represented by the general formula (3) is within the above range, both high resolution and crack resistance can be achieved. If the content ratio of the organosilane unit represented by the general formula (3) is less than 2.5 mol%, the effect of improving the resolution after development may be insufficient, or it may cause generation of residues after development. is there. On the other hand, when it exceeds 40 mol%, the crack resistance of the cured film obtained from the photosensitive resin composition of the present invention at the time of thermosetting or ion implantation may be lowered.
- the photosensitive resin composition of the present invention used as an ion implantation mask resist is required to have crack resistance of a cured film obtained from the composition at the time of ion implantation.
- (X) and (Y) are ranges satisfying 1.5 ⁇ (Y) ⁇ (X) ⁇ 3 ⁇ (Y), and ranges satisfying 2 ⁇ (Y) ⁇ (X) ⁇ 3 ⁇ (Y) It is preferable to be in a range that satisfies the above. When (X) is within the above range, both high resolution and crack resistance can be achieved. If (X) is less than 1.5 ⁇ (Y), the crack resistance of the cured film obtained from the photosensitive resin composition of the present invention at the time of thermosetting or ion implantation may be lowered. On the other hand, if (X) exceeds 3 ⁇ (Y), it may cause a decrease in resolution after development and generation of residues after development.
- (A) When the content ratio of the organosilane unit represented by the general formula (3) in the polysiloxane is within the above range, and (X) and (Y) are within the above range, The resolution can be improved and the crack resistance at the time of thermosetting or ion implantation can be improved. Therefore, (A) a photosensitive resin composition containing polysiloxane is preferred for application to the step (1-1a) of heating the pattern of the composition to 500 to 1,500 ° C. described later. In addition, the composition is preferable in applying to the step (3-A) of treating the pattern of the composition at 0 to less than 300 ° C. described later. By the steps (1-1a) and (3-A), it is possible to shorten the steps required to remove the pattern of the composition, and it is possible to shorten the process time.
- the polysiloxane (A) used in the present invention is obtained by hydrolyzing and dehydrating and condensing at least the organosilane represented by the general formula (21) and the organosilane represented by the general formula (22) ( A) Polysiloxane is preferred.
- R 53 and R 54 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group or an aryl group
- R 55 and R 56 each independently represent hydrogen, Represents an alkyl group, an acyl group or an aryl group
- R 57 to R 60 each independently represent hydrogen, an alkyl group, an acyl group, or an aryl group.
- q represents an integer of 1 to 10.
- R 53 and R 54 each independently represent hydrogen, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or carbon.
- Preferred is an aryl group having 6 to 15 carbon atoms, more preferably hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an aryl group having 6 to 10 carbon atoms. preferable.
- R 55 and R 56 are each independently preferably hydrogen, an alkyl group having 1 to 6 carbon atoms, an acyl group having 2 to 6 carbon atoms, or an aryl group having 6 to 15 carbon atoms.
- An alkyl group having 4 to 4, an acyl group having 2 to 4 carbon atoms, or an aryl group having 6 to 10 carbon atoms is more preferable.
- R 57 to R 60 are preferably each independently hydrogen, an alkyl group having 1 to 6 carbon atoms, an acyl group having 2 to 6 carbon atoms, or an aryl group having 6 to 15 carbon atoms, Hydrogen, an alkyl group having 1 to 4 carbon atoms, an acyl group having 2 to 4 carbon atoms, or an aryl group having 6 to 10 carbon atoms is more preferable.
- the alkyl group, cycloalkyl group, alkenyl group, aryl group and acyl group may be either unsubstituted or substituted.
- the polysiloxane is preferably a polysiloxane containing an organosilane unit represented by the general formula (7) and / or an organosilane unit represented by the general formula (8).
- the organosilane unit represented by 8) may be either a regular arrangement or an irregular arrangement.
- the regular arrangement include alternating copolymerization, periodic copolymerization, block copolymerization, and graft copolymerization.
- the irregular arrangement include random copolymerization.
- the organosilane unit represented by the formula (8) may be either a two-dimensional array or a three-dimensional array. Examples of the two-dimensional arrangement include a linear shape. Examples of the three-dimensional arrangement include a ladder shape, a cage shape, and a mesh shape.
- R 4 to R 6 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, or an aryl group.
- each R 3 independently represents hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group or an aryl group
- each R 9 independently represents hydrogen, an alkyl group, an acyl group, An aryl group, a polysiloxane polymer chain, or a substituent represented by the general formula (7) is represented.
- R 4 to R 6 each independently represent hydrogen, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or carbon Preferred is an aryl group having 6 to 15 carbon atoms, more preferably hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an aryl group having 6 to 10 carbon atoms.
- the alkyl group, cycloalkyl group, alkenyl group, aryl group and acyl group may be either unsubstituted or substituted.
- each R 3 independently represents hydrogen, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or 6 to 6 carbon atoms.
- 15 aryl groups are preferable, and hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an aryl group having 6 to 10 carbon atoms is more preferable.
- R 9 is independently hydrogen, an alkyl group having 1 to 6 carbon atoms, an acyl group having 2 to 6 carbon atoms, an aryl group having 6 to 15 carbon atoms, a polymer chain of polysiloxane, or a general formula (7).
- the substituent is preferably represented by hydrogen, an alkyl group having 1 to 4 carbon atoms, an acyl group having 2 to 4 carbon atoms, an aryl group having 6 to 10 carbon atoms, a polymer chain of polysiloxane, or the general formula (7). More preferred is a substituent.
- Examples of the alkyl group represented by R 3 to R 6 in the general formulas (7) and (8) include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a t-butyl group, and an n-hexyl group. Group or n-decyl group.
- Examples of the substituent include a halogen atom, an epoxy group, a glycidyl group, an oxetanyl group, a carboxy group, an amino group, a mercapto group, an isocyanate group, or a succinic anhydride residue.
- examples of R 3 to R 6 include a trifluoromethyl group, a 3,3,3-trifluoropropyl group, a 3-glycidoxypropyl group, and 2- (3,4- Epoxycyclohexyl) ethyl group, 3-[(3-ethyl-3-oxetanyl) methoxy] propyl group, 1-carboxy-2-carboxypentyl group, 3-aminopropyl group, 3-mercaptopropyl group, 3-isocyanatopropyl group Or the group of the following structure is mentioned.
- Examples of the cycloalkyl group represented by R 3 to R 6 in the general formulas (7) and (8) include a cyclopentyl group and a cyclohexyl group.
- Examples of the substituent include a halogen atom, an epoxy group, a glycidyl group, an oxetanyl group, a carboxy group, an amino group, a mercapto group, an isocyanate group, or a succinic anhydride residue.
- Examples of the alkenyl group represented by R 3 to R 6 in the general formulas (7) and (8) and the substituted product thereof include a vinyl group, an allyl group, a 3- (meth) acryloxypropyl group, and 2- (meth) acryloxy group. An ethyl group is mentioned.
- Examples of the aryl group represented by R 3 to R 6 in the general formulas (7) and (8) and the substituted product thereof include phenyl group, 4-tolyl group, 4-hydroxyphenyl group, 4-methoxyphenyl group, 4-t -Butylphenyl group, 1-naphthyl group, 2-naphthyl group, 4-styryl group, 2-phenylethyl group, 1- (4-hydroxyphenyl) ethyl group, 2- (4-hydroxyphenyl) ethyl group or 4- A hydroxy-5- (4-hydroxyphenylcarbonyloxy) pentyl group can be mentioned.
- Examples of the acyl group of R 9 in the general formula (7) include an acetyl group.
- Examples of the aryl group represented by R 9 in the general formula (7) include a phenyl group, a 4-tolyl group, a 4-hydroxyphenyl group, a 4-methoxyphenyl group, a 4-t-butylphenyl group, and a 1-naphthyl group. It is done.
- Examples of the alkyl group represented by R 9 in the general formula (8) include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, and an n-butyl group.
- the crack resistance of the cured film obtained from the photosensitive resin composition of the present invention at the time of thermosetting and ion implantation can be improved.
- the organosilane unit represented by General formula (8) the hardness of a cured film can be improved, without impairing the heat resistance and transparency of a cured film.
- organosilane having an organosilane unit represented by the general formula (7) examples include trimethylmethoxysilane, trimethylethoxysilane, triethylmethoxysilane, triethylethoxysilane, tri-n-propyltrimethoxysilane, and tri-n-.
- organosilane having an organosilane unit represented by the general formula (8) examples include methyltrimethoxysilane, methyltriethoxysilane, methyltri-n-propoxysilane, methyltriisopropoxysilane, and methyltri-n-butoxysilane.
- the content ratio of the organosilane unit represented by the general formula (7) in the polysiloxane is 0 to 10 mol%, preferably 0 to 5 mol% in terms of Si atom mol ratio.
- Si atomic mole ratio derived from the organosilane unit represented by the general formula (7) is within the above range, both high resolution and crack resistance can be achieved.
- the content ratio of the organosilane unit represented by the general formula (8) in the polysiloxane is 0 to 90 mol%, preferably 0 to 80 mol%, more preferably 0 to 68 mol% in terms of Si atom mol ratio. 5 to 52 mol% is more preferable.
- Si atomic mole ratio derived from the organosilane unit represented by the general formula (8) is within the above range, the hardness of the cured film can be improved without impairing the high resolution and crack resistance.
- the polysiloxane preferably contains an organosilane unit having an aromatic group.
- a polysiloxane is represented by an organosilane having an organosilane unit represented by the general formula (2), an organosilane having an organosilane unit represented by the general formula (7), and the general formula (8).
- the organosilane having an organosilane unit is preferably obtained using an organosilane having an aromatic group.
- the polysiloxane Since the polysiloxane has an organosilane unit having an aromatic group, the cured film obtained from the photosensitive resin composition of the present invention at the time of thermal curing and ion implantation due to steric hindrance of the aromatic group. Crack resistance can be improved.
- organosilane represented by the general formula (2), the general formula (7), or the general formula (8) and having an organosilane unit having an aromatic group examples include phenyltrimethoxysilane, phenyltriethoxysilane, 4 -Tolyltrimethoxysilane, 4-hydroxyphenyltrimethoxysilane, 4-methoxyphenyltrimethoxysilane, 4-t-butylphenyltrimethoxysilane, 1-naphthyltrimethoxysilane, 2-naphthyltrimethoxysilane, 4-styryltri Methoxysilane, 2-phenylethyltrimethoxysilane, 4-hydroxybenzyltrimethoxysilane, 1- (4-hydroxyphenyl) ethyltrimethoxysilane, 2- (4-hydroxyphenyl) ethyltrimethoxysilane or 4-hydroxy-5 -(4-Hide Carboxymethyl bifunctional
- the content ratio of the organosilane unit having an aromatic group in the polysiloxane is preferably from 15 to 80 mol%, more preferably from 25 to 70 mol%, in terms of Si atom mol ratio.
- the Si atom molar ratio derived from the organosilane unit represented by the general formula (2), the general formula (7) or the general formula (8) and having an aromatic group is preferably within the above range.
- the pattern processability is improved with an alkaline developer, and after development.
- phenyltrimethoxysilane, 4-tolyltrimethoxysilane, 4-hydroxyphenyltrimethoxysilane, 4-methoxyphenyltrimethoxysilane, 1-naphthyltrimethoxysilane, 2 Naphthyltrimethoxysilane, 4-styryltrimethoxysilane, 2-phenylethyltrimethoxysilane, 4-hydroxybenzyltrimethoxysilane, diphenyldimethoxysilane or diphenyldiethoxysilane are preferred, phenyltrimethoxysilane, 1-naphthyltrimethoxysilane Silane, 2-
- organosilane represented by the general formula (2) As the organosilane represented by the general formula (2), the general formula (7) or the general formula (8) and containing an organosilane unit having an aromatic group, an organosilane unit represented by the general formula (4a) And at least one selected from the group consisting of an organosilane unit represented by the general formula (4b) and an organosilane unit represented by the general formula (4c) (hereinafter referred to as “organosilane unit having naphthyl”). Particularly preferred.
- R 61 represents an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an aryl group having 6 to 15 carbon atoms.
- p represents an integer of 0 to 7.
- R 62 and R 63 each represents an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an aryl group having 6 to 15 carbon atoms.
- q represents an integer of 0 to 7
- w represents an integer of 1 to 2
- x represents an integer of 0 to 1
- w + x 2.
- R 64 represents an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an aryl group having 6 to 15 carbon atoms
- R 65 represents an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an aryl group having 6 to 15 carbon atoms.
- r represents an integer of 0 to 7
- y represents an integer of 1 to 3
- z represents an integer of 0 to 2
- y + z 3.
- R 61 is preferably an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, or an aryl group having 6 to 10 carbon atoms.
- R 62 and R 63 each represents an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, or an aryl group having 6 to 10 carbon atoms. Is preferred.
- R 64 and R 65 are an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, or an aryl group having 6 to 10 carbon atoms. Is preferred.
- the polysiloxane contains an organosilane unit having a naphthyl group, generation of a residue during development can be suppressed and resolution after development can be improved. This is because many silanol groups that do not form siloxane bridges remain in the vicinity of the naphthyl group due to steric hindrance of the naphthyl group. Furthermore, since the naphthyl group has hydrophobicity, it is presumed that the dissolution contrast ratio between the exposed portion and the unexposed portion is improved. In addition, the crack resistance of the cured film at the time of heat curing and ion implantation can be improved.
- (A) When the polysiloxane contains an organosilane unit having a naphthyl group, the resolution after development can be improved, and the crack resistance at the time of thermosetting or ion implantation can be improved. Therefore, (A) a photosensitive resin composition containing polysiloxane is preferred for application to the step (1-1a) of heating the pattern of the composition to 500 to 1,500 ° C. described later. In addition, the composition is preferable in applying to the step (3-A) of treating the pattern of the composition at 0 to less than 300 ° C. described later. By the steps (1-1a) and (3-A), it is possible to shorten the steps required to remove the pattern of the composition, and it is possible to shorten the process time.
- the photosensitive resin composition of the present invention When imparting positive photosensitivity to the photosensitive resin composition of the present invention, it has an organosilane unit represented by the general formula (7) and an organosilane unit represented by the general formula (7).
- an organosilane having an organosilane unit represented by the general formula (8) an organosilane having an aromatic group is particularly preferable.
- the photosensitive resin composition of the present invention When imparting positive photosensitivity to the photosensitive resin composition of the present invention, it has an organosilane unit represented by the general formula (7) and an organosilane unit represented by the general formula (7).
- an organosilane having the organosilane unit represented by the general formula (8) an organosilane having an epoxy group and / or a vinyl group may be used.
- the polysiloxane has a structure derived from an organosilane having an epoxy group and / or a vinyl group, the adhesion of the cured film can be improved.
- Examples of the organosilane represented by the general formula (2), the general formula (7), or the general formula (8) and having an organosilane unit having an epoxy group and / or a vinyl group include 3-glycidoxypropyltri Methoxysilane, 3-glycidoxypropyltriethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltriethoxysilane, vinyltrimethoxysilane or vinyltri
- a trifunctional silane such as ethoxysilane, a bifunctional silane such as (3-glycidoxypropyl) methyldimethoxysilane, (3-glycidoxypropyl) methyldiethoxysilane, methylvinyldimethoxysilane or divinyldiethoxysilane, or (3 -Glycidoxypropyl) dimethyl Monofunctional silanes
- 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 2- (3, 4-Epoxycyclohexyl) ethyltriethoxysilane, vinyltrimethoxysilane or vinyltriethoxysilane is preferred.
- the content ratio of the organosilane unit represented by the general formula (2), the general formula (7), or the general formula (8) in the polysiloxane and having an epoxy group and / or a vinyl group is expressed as Si atom mol.
- the ratio is preferably 1 to 70 mol%, more preferably 3 to 60 mol%, still more preferably 5 to 50 mol%, and particularly preferably 10 to 50 mol%.
- Adhesion can be improved.
- the photosensitive resin composition of the present invention When imparting negative photosensitivity to the photosensitive resin composition of the present invention, it has an organosilane unit represented by the general formula (2) and an organosilane unit represented by the general formula (7).
- an organosilane and the organosilane having an organosilane unit represented by the general formula (8) an organosilane having an ethylenically unsaturated double bond group may be used.
- (A) When polysiloxane has a structure derived from an organosilane having an ethylenically unsaturated double bond group, UV curing at the time of exposure is promoted, and sensitivity can be improved. And the crosslinking density after thermosetting improves and the hardness of a cured film can be improved.
- Exposure here is irradiation of active actinic radiation (radiation), for example, irradiation of visible rays, ultraviolet rays, electron beams, X-rays or the like.
- active actinic radiation for example, irradiation of visible rays, ultraviolet rays, electron beams, X-rays or the like.
- an ultra-high pressure mercury lamp light source capable of irradiation with visible light or ultraviolet light is preferable, and j-line (wavelength 313 nm), i-line (wavelength 365 nm), h-line (wavelength). 405 nm) or g-line (wavelength 436 nm) irradiation is more preferred.
- exposure refers to irradiation with active actinic radiation (radiation).
- Examples of the organosilane represented by the general formula (2), the general formula (7), or the general formula (8) and having an organosilane unit having an ethylenically unsaturated double bond group include vinyltrimethoxysilane and vinyl.
- Triethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropyltriethoxysilane, 3-methacryloxypropylmethyldimethoxysilane, 3-methacryloxypropylmethyldiethoxysilane, 3-acryloxypropyltrimethoxysilane, Trifunctional silanes such as 3-acryloxypropyltriethoxysilane, 3-acryloxypropylmethyldimethoxysilane, 3-acryloxypropylmethyldiethoxysilane or 4-styryltrimethoxysilane or methylvinyldimethoxysilane Ku can be mentioned difunctional silanes such as divinyl diethoxy silane.
- vinyltrimethoxysilane 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropylmethyldimethoxysilane, 3-acryloxypropyltrimethoxysilane, 3-acrylic Roxypropylmethyldimethoxysilane or 4-styryltrimethoxysilane is preferred.
- the photosensitive resin composition of the present invention is imparted with negative photosensitivity.
- the double bond equivalent of (A) polysiloxane is preferably 150 to 10,000 g / mol, more preferably 200 to 5,000 g / mol, and more preferably 250 to More preferably, it is 2,000 g / mol.
- the double bond equivalent means the resin weight per 1 mol of the ethylenically unsaturated double bond group, and the unit is g / mol.
- the double bond equivalent can be calculated by measuring the iodine value.
- the sensitivity at the time of exposure and the hardness of a cured film can be improved as the double bond equivalent of polysiloxane is in the above range.
- an organosilane having an acidic group is also preferable.
- the polysiloxane has an organosilanesilane-derived acidic group, pattern processability with an alkali developer can be improved, generation of residues after development is suppressed, and resolution after development is improved. Can do.
- As the acidic group a group exhibiting an acidity of less than pH 6 is preferable.
- Examples of the group having an acidity of less than pH 6 include a carboxy group, a carboxylic acid anhydride group, a sulfonic acid group, a phenolic hydroxyl group, a hydroxyimide group, and a silanol group.
- a carboxy group or a carboxylic anhydride group is preferred from the viewpoint of pattern processability with an alkali developer and improvement in resolution after development.
- organosilane represented by the general formula (7) or the general formula (8) and having an organosilane unit having an acidic group examples include 2- (3-trimethoxysilylpropyl) -4- (Nt -Butyl) amino-4-oxobutanoic acid, 2- (3-triethoxysilylpropyl) -4- (Nt-butyl) amino-4-oxobutanoic acid, 3- (3-trimethoxysilylpropyl) -4- (Nt-butyl) amino-4-oxobutanoic acid, 3- (3-triethoxysilylpropyl) -4- (Nt-butyl) amino-4-oxobutanoic acid, 3-trimethoxysilylpropyl succinic acid, 3-triethoxysilylpropyl succinic acid, 3-trimethoxysilylpropionic acid, 3-triethoxysilylpropionic acid, 4-trimethoxysilylbutyric acid
- -Oxobutanoic acid 2- (3-triethoxysilylpropyl) -4- (Nt-butyl) amino-4-oxobutanoic acid, 3- (3-trimethoxysilylpropyl) -4- (Nt-butyl) Amino-4-oxobutanoic acid, 3- (3-triethoxysilylpropyl) -4- (Nt-butyl) amino-4-oxobutanoic acid, 3-trimethoxysilylpropyl succinic acid, 3-triethoxysilylpropyl Succinic acid, 3-trimethoxysilylpropionic acid, 3-triethoxysilylpropionic acid, 4-trimethoxysilylbutyric acid, 4-
- the content ratio is preferably 0.01 to 20 mol%, more preferably 0.02 to 15 mol%, and still more preferably 0.03 to 10 mol% in terms of Si atom mol ratio.
- the carboxylic acid equivalent of (A) polysiloxane is preferably 280 to 1,400 g / mol, more preferably 300 to 1,100 g / mol. 350 to 950 g / mol is more preferable.
- the carboxylic acid equivalent means the resin weight per 1 mol of the carboxy group, and the unit is g / mol. From the value of carboxylic acid equivalent, the number of carboxy groups in the resin can be determined.
- the content ratio of various organosilane units in the polysiloxane should be determined by combining 1 H-NMR, 13 C-NMR, 29 Si-NMR, IR, TOF-MS, elemental analysis and ash content measurement. Can do.
- the weight average molecular weight (hereinafter referred to as “Mw”) of the polysiloxane is preferably 500 to 100,000 in terms of polystyrene measured by gel permeation chromatography (hereinafter “GPC”), preferably 500 to 50 Is more preferable, and 500 to 20,000 is more preferable.
- Mw weight average molecular weight
- GPC gel permeation chromatography
- a solvent and water, and a catalyst as necessary are added to a mixture containing organosilane, and the temperature is 50 to 150 ° C., preferably 90 to 130 ° C.
- a method of heating and stirring for about 0.5 to 100 hours can be mentioned.
- hydrolysis by-products alcohol such as methanol
- condensation by-products water
- Examples of the solvent used for the hydrolysis and dehydration condensation of organosilane include the same solvents as described below.
- the amount of the solvent added is preferably 10 to 1,000 parts by weight when the total amount of inorganic particles (B) to be reacted with organosilane and organosilane is 100 parts by weight.
- the amount of water added is preferably 0.5 to 2 mol with respect to 1 mol of the hydrolyzable group.
- an acid catalyst or a base catalyst is preferable.
- the acid catalyst include hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid, phosphoric acid, acetic acid, trifluoroacetic acid, formic acid, polyvalent carboxylic acid, anhydrides thereof, and ion exchange resins.
- Examples of the base catalyst include triethylamine, tri-n-propylamine, tri-n-butylamine, tri-n-pentylamine, tri-n-hexylamine, tri-n-heptylamine, tri-n-octylamine, Examples include diethylamine, triethanolamine, diethanolamine, sodium hydroxide, potassium hydroxide, alkoxysilane having an amino group, or an ion exchange resin.
- the addition amount of the catalyst is preferably 0.01 to 10 parts by weight when the total of (B) inorganic particles to be reacted with organosilane and organosilane is 100 parts by weight.
- (A) polysiloxane does not contain the above catalyst, and therefore the catalyst may be removed afterwards.
- water washing or treatment with an ion exchange resin is preferable from the viewpoint of ease of operation and removability.
- the water washing means a method of diluting the obtained (A) polysiloxane solution with an appropriate hydrophobic solvent, washing with water several times, and concentrating the obtained organic layer with an evaporator or the like.
- the treatment with an ion exchange resin refers to a method in which the obtained (A) polysiloxane solution is brought into contact with an appropriate ion exchange resin.
- the photosensitive resin composition of the present invention contains (B) inorganic particles.
- the photosensitive resin composition contains (B) inorganic particles, in addition to the form in which (A) polysiloxane and (B) inorganic particles are separately contained in the photosensitive resin composition, B) It includes the form in which (A) polysiloxane is bonded to the inorganic particles and both forms.
- (A) polysiloxane is preferably (B) polysiloxane having an organosilane unit bonded with inorganic particles (hereinafter referred to as “(A1) inorganic particle-containing polysiloxane”).
- (A1) As the inorganic particle-containing polysiloxane (B) an organosilane having an organosilane unit represented by the general formula (2) in the presence of inorganic particles, and an organo represented by the general formula (3) It is preferable to use polysiloxane obtained by hydrolyzing and dehydrating and condensing organosilane having a silane unit.
- the alkali solubility of the inorganic particles is improved, so that it is possible to suppress a decrease in pattern processability with an alkali developer.
- the inorganic particles have a small shrinkage rate at the time of thermosetting, so that the generation of shrinkage stress can be suppressed, and the resistance of the cured film obtained from the photosensitive resin composition of the present invention at the time of thermosetting and ion implantation can be suppressed. Cracking properties can be improved.
- the presence or absence of a bond between (B) inorganic particles and (A) polysiloxane can be confirmed by combining 13 C-NMR, 29 Si-NMR, IR, and the like.
- 29 Si-NMR the spectrum of (B) inorganic particles, the spectrum of (A) polysiloxane, and the spectrum of (A1) polysiloxane containing inorganic particles are compared.
- the peak derived from Si atoms bonded to (B) inorganic particles is a peak having a chemical shift that does not exist in the spectrum of (A) polysiloxane.
- the presence or absence of a bond between inorganic particles and (A) polysiloxane can be confirmed.
- the peak derived from Si atoms in the (A1) inorganic particle-containing polysiloxane is also a peak having a wave number different from that of the spectrum of (A) polysiloxane, (B) inorganic particles and (A) poly The presence or absence of a bond with siloxane can be confirmed.
- Inorganic particles refer to particles made of a metal compound or a semiconductor compound.
- the metal or semiconductor include an element selected from the group consisting of silicon, lithium, sodium, magnesium, potassium, calcium, strontium, barium, and lanthanum.
- the metal compound or semiconductor compound include halides, oxides, nitrides, hydroxides, carbonates, sulfates, nitrates, and metasilicates of the above metals or semiconductors.
- (B) inorganic particles having a number average particle diameter in a specific range improves the pattern processability with an alkali developer, improves the resolution after development, and at the time of thermosetting and ion implantation. From the viewpoint of improving crack resistance of a cured film obtained from the photosensitive resin composition.
- the number average particle diameter of the inorganic particles is preferably 1 nm or more, more preferably 5 nm or more, further preferably 15 nm or more, particularly preferably 20 nm or more, and most preferably 25 nm or more.
- the number average particle diameter of the inorganic particles is within the above range, the crack resistance of the cured film obtained from the photosensitive resin composition of the present invention during thermosetting and ion implantation can be improved.
- the number average particle diameter is preferably 200 nm or less, more preferably 70 nm or less, still more preferably 60 nm or less, particularly preferably 55 nm or less, and most preferably 45 nm or less. When the number average particle diameter is within the above range, pattern processability with an alkali developer and resolution after development can be improved.
- the number average particle size of the inorganic particles is determined by using a sub-micron particle size distribution analyzer (N4-PLUS; manufactured by Beckman Coulter, Inc.) and (B) Brownian motion of the inorganic particles in the solution. It can be determined by measuring the laser scattering by (dynamic light scattering method). Moreover, the number average particle diameter of (B) inorganic particle in the cured film obtained from the photosensitive resin composition of this invention can be calculated
- the diameter of the true spheres is measured to obtain the number average particle diameter.
- the longest diameter (hereinafter, “major axis diameter”) and the longest diameter (hereinafter, “minor axis diameter”) in the direction orthogonal to the major axis diameter are measured, The biaxial average diameter obtained by averaging the diameter and the short axis diameter is defined as the number average particle diameter.
- Examples of the inorganic particles (B) include silica particles, lithium fluoride particles, lithium chloride particles, lithium bromide particles, lithium oxide particles, lithium carbonate particles, lithium sulfate particles, lithium nitrate particles, lithium metasilicate particles, and hydroxide.
- the inorganic particles (B) preferably have a functional group capable of reacting with the resin such as a hydroxy group on the surface thereof.
- a functional group capable of reacting with the resin such as a hydroxy group on the surface thereof.
- silica particles examples include methanol silica sol having a number average particle diameter (hereinafter, “particle diameter”) of 10 to 20 nm using methanol (MA) as a dispersion medium, and a particle diameter of 10 to 20 nm using isopropyl alcohol (IPA) as a dispersion medium.
- particle diameter a number average particle diameter of 10 to 20 nm using methanol (MA) as a dispersion medium
- IPA isopropyl alcohol
- IPA-ST EG-ST having a particle diameter of 10 to 20 nm using ethylene glycol (EG) as a dispersion medium
- NPC-ST-30 having a particle diameter of 10 to 20 nm using n-propyl cellosolve (NPC) as a dispersion medium
- dimethyl DMAC-ST having a particle diameter of 10 to 20 nm using acetamide (DMAC) as a dispersion medium
- MEK-ST having a particle diameter of 10 to 20 nm using methyl ethyl ketone (MEK) as a dispersion medium
- MIBK methyl isobutyl ketone
- PGM-ST having a particle diameter of 10 to 20 nm as a dispersion medium
- MA-ST-S having a particle diameter of 8 to 11 nm using MA as a dispersion medium
- MA-ST-M having a particle diameter of 20 to 30 nm using MA as a dispersion medium
- MA-ST-L with a particle diameter of 40-50 nm using MA as a dispersion medium
- MA-ST-ZL with a particle diameter of 70-100 nm using MA as a dispersion medium
- IP-ST-M IPA having a particle diameter of 20 to 30 nm using ST-S, IPA as a dispersion medium, and IP having a particle diameter of 40 to 50 nm, using IPA as a dispersion medium -ST-L, IPA-ST-ZL with a particle size of 70-100 nm using IPA as a disper
- -1727 BM of 110-130 nm in diameter using EG as a dispersion medium
- -1727 TH of 150-170 nm in diameter using EG as a dispersion medium
- 5-80 nm in which the dispersion solution is water.
- CALOID (registered trademark) -S (all of which are manufactured by JGC Catalysts & Chemicals Co., Ltd.), particles whose dispersion is water “Quortron” (registered trademark) PL-06L having a diameter of 5 to 10 nm, PL-1L having a particle diameter of 10 to 15 nm in which the dispersion solution is water, PL-2L having a particle diameter of 15 to 20 nm in which the dispersion solution is water, PL-2 having a particle size of 20 to 30 nm in which the dispersion solution is water, PL-3L having a particle size of 30 to 40 nm in which the dispersion solution is water, and PL-3L having a particle size of 30 to 40 nm in which the dispersion solution is water.
- PL-3H having a particle size of 30 to 40 nm in which the dispersion solution is water
- PL-5 having a particle size of 50 to 60 nm in which the dispersion solution is water
- PL-H having a particle size of 70 to 85 nm in which the dispersion solution is water. 7.
- the dispersion solution is the same PL-10H having a particle diameter of 80 to 100 nm, the dispersion solution is water, the same PL-1-IPA having a particle diameter of 10 to 15 nm using IPA as a dispersion medium, and the particle diameter of 15 to 20 nm using IPA as a dispersion medium PL-2L-IPA, M PL-2L-MA having a particle diameter of 15 to 20 nm using A as a dispersion medium, PL-2L-PGME having a particle diameter of 15 to 20 nm using PGME as a dispersion medium, and 30 to 40 nm having a particle diameter of 30 to 40 nm using PGME as a dispersion medium.
- PL-3PGME, PL-3L-PGME having a particle diameter of 30 to 40 nm using PGME as a dispersion medium PL-2L-DAA having a particle diameter of 15 to 20 nm using diacetone alcohol (DAA) as a dispersion medium
- Silica (SiO2) SG-SO100 manufactured by Kyoritsu Material Co., Ltd.
- Leosil registered trader
- silica-lithium oxide composite particles examples include lithium silicate 45 (manufactured by Nissan Chemical Industries, Ltd.).
- the content of the inorganic particles (B) in the solid content of the photosensitive resin composition of the present invention excluding the solvent is preferably 5 to 80% by weight, more preferably 7 to 70% by weight, and 10 to 60% by weight. More preferred is 15 to 50% by weight.
- content of (B) inorganic particle means the total amount of (B) inorganic particle which comprises (A1) inorganic particle containing polysiloxane, and the other (B) inorganic particle.
- the polysiloxane contains (B) inorganic particles having a number average particle diameter in a specific range, so that the resolution after development can be improved, and crack resistance at the time of thermosetting or ion implantation. Can be improved. Therefore, (A) a photosensitive resin composition containing polysiloxane is preferred for application to the step (1-1a) of heating the pattern of the composition to 500 to 1,500 ° C. described later. In addition, the composition is preferable in applying to the step (3-A) of treating the pattern of the composition at 0 to less than 300 ° C. described later. By the steps (1-1a) and (3-A), it is possible to shorten the steps required to remove the pattern of the composition, and it is possible to shorten the process time.
- the photosensitive resin composition of the present invention is a photosensitive composition having positive or negative photosensitivity, and preferably has positive photosensitivity. Since the photosensitive resin composition has positive photosensitivity, a pattern having excellent resolution after development can be obtained.
- the photosensitive resin composition preferably contains (C) a compound having a naphthoquinonediazide structure.
- a compound having a naphthoquinonediazide structure refers to a compound that undergoes a photoreaction upon exposure to undergo structural changes to generate an indenecarboxylic acid having alkali solubility. Due to the generation of this indenecarboxylic acid, only the exposed portion is dissolved in the alkaline developer.
- the quinonediazide moiety of the compound (C) having a naphthoquinonediazide structure in the photosensitive resin composition of the present invention acts.
- the quinonediazide moiety coordinates with and interacts with (A) the silanol group remaining in the polysiloxane, and (A) suppresses the solubility of the remaining silanol in the polysiloxane in the alkaline developer.
- the photosensitive resin composition of the present invention contains (C) a compound having a naphthoquinonediazide structure, the difference in solubility in an alkali developer between the exposed area and the unexposed area is increased, and the dissolution contrast is improved. To do.
- Examples of the compound having a naphthoquinone diazide structure include a compound in which naphthoquinone diazide sulfonic acid is ester-bonded to a compound having a phenolic hydroxyl group.
- R 10 ⁇ R 12 each independently represent hydrogen, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an aryl group or a carboxy group having 6 to 15 carbon atoms, R 10 ⁇ At least two of R 12 may form a ring.
- R 10 to R 12 are each independently preferably an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an aryl group having 6 to 10 carbon atoms, or a carboxy group.
- the above alkyl group, cycloalkyl group, aryl group and carboxy group may be either unsubstituted or substituted.
- Examples of the ring formed by at least two of R 10 to R 12 include a cyclopentane ring, a cyclohexane ring, a norbornene ring, an adamantane ring, and a fluorene ring.
- Examples of the compound having a phenolic hydroxyl group include the following compounds. (Both made by Honshu Chemical Industry Co., Ltd.)
- naphthoquinone diazide sulfonic acid chloride examples include 4-naphthoquinone diazide sulfonic acid chloride and 5-naphthoquinone diazide sulfonic acid chloride.
- the 4-naphthoquinonediazide sulfonic acid ester compound has absorption in the i-line (wavelength 365 nm) region and is therefore suitable for i-line exposure.
- the 5-naphthoquinonediazide sulfonic acid ester compound has absorption in a wide wavelength range and is therefore suitable for exposure in a wide range of wavelengths.
- R 13 to R 16 are each independently hydrogen, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an ester group having 1 to 8 carbon atoms.
- R 17 represents hydrogen, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 15 carbon atoms.
- Q represents a 5-naphthoquinonediazidosulfonyl group or hydrogen, and one or more of Q are 5-naphthoquinonediazidesulfonyl groups.
- a, b, c, d, e, ⁇ , ⁇ , ⁇ , and ⁇ each independently represent an integer of 0 to 4, and ⁇ + ⁇ + ⁇ + ⁇ ⁇ 2.
- R 13 to R 16 are each independently hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or an ester group having 1 to 6 carbon atoms.
- an aryl group or carboxy group having 6 to 10 carbon atoms is preferable, and R 17 is preferably hydrogen, an alkyl group having 1 to 6 carbon atoms, or an aryl group having 6 to 10 carbon atoms.
- the alkyl group, cycloalkyl group, alkoxy group, ester group, aryl group and carboxy group may be either unsubstituted or substituted.
- the content of the compound (C) having a naphthoquinonediazide structure in the photosensitive resin composition of the present invention is preferably 2 to 30 parts by weight, based on 100 parts by weight of (A) polysiloxane, and 3 to 15 parts by weight. Part is more preferred.
- (C) When content of the compound which has a naphthoquinone diazide structure exists in the said range, while being able to improve the melt
- (A) polysiloxane is (A1) inorganic particle containing polysiloxane, it is set as 100 weight part including the weight of (B1) inorganic particle which comprises (A1) inorganic particle containing polysiloxane.
- a photopolymerization initiator When imparting negative photosensitivity to the photosensitive resin composition of the present invention, (D) a photopolymerization initiator, (E1) a photoacid generator, and (E2) a photobase generator are added to the photosensitive resin composition. It is preferable to contain one or more selected from the group consisting of: (D) A photopolymerization initiator refers to a compound that generates radicals by bond cleavage and / or reaction upon exposure. (E1) A photoacid generator refers to a compound that generates an acid by causing bond cleavage upon exposure. (E2) The photobase generator refers to a compound that generates a base by causing bond cleavage upon exposure.
- Examples of (D) photopolymerization initiators include 2-methyl-1- [4- (methylthio) phenyl] -2-morpholinopropan-1-one, 2-dimethylamino-2- (4-methylbenzyl)- 1- (4-morpholinophenyl) -butan-1-one, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butan-1-one or 3,6-bis (2-methyl-2) ⁇ -aminoalkylphenone compounds such as -morpholinopropionyl) -9-octyl-9H-carbazole, 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide or Bis (2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl) phosphine oxide Acylphosphine oxide compounds, 1-phenylpropane-1,
- ⁇ -aminoalkylphenone compounds acylphosphine oxide compounds, oxime ester compounds, benzophenone compounds having amino groups, or benzoic acid ester compounds having amino groups are preferred.
- benzophenone compound having an amino group examples include 4,4′-bis (dimethylamino) benzophenone and 4,4′-bis (diethylamino) benzophenone.
- benzoic acid ester compound having an amino group examples include ethyl 4-dimethylaminobenzoate, 4-dimethylaminobenzoic acid (2-ethylhexyl), and ethyl 4-diethylaminobenzoate.
- the content of the photopolymerization initiator (D) in the photosensitive resin composition of the present invention is 0.1 to 20 when the total of (A) polysiloxane and the radical polymerizable compound described later is 100 parts by weight. Part by weight is preferable, and 1 to 10 parts by weight is more preferable.
- (D) The sensitivity at the time of exposure and the hardness of a cured film can be improved as content of a photoinitiator is in the said range.
- (A) polysiloxane is (A1) inorganic particle containing polysiloxane, it is set as 100 weight part including the weight of (B1) inorganic particle which comprises (A1) inorganic particle containing polysiloxane.
- Photoacid generators include ionic compounds and nonionic compounds.
- the ionic compound those containing no heavy metal or halogen ion are preferred, and triorganosulfonium salt compounds are more preferred.
- the triorganosulfonium salt compound include methanesulfonate, trifluoromethanesulfonate, camphorsulfonate, or 4-toluenesulfonate of triphenylsulfonium; methanesulfonate of dimethyl-1-naphthylsulfonium , Trifluoromethanesulfonate, camphorsulfonate or 4-toluenesulfonate; dimethyl sulfonate (4-hydroxy-1-naphthyl) sulfonium, methanesulfonate, trifluoromethanesulfonate, camphorsulfonate or 4- Toluenesulfonate; dimethyl (4,
- Nonionic (E1) photoacid generators include, for example, halogen-containing compounds, diazomethane compounds, sulfone compounds, sulfonate ester compounds, carboxylic acid ester compounds, sulfonimide compounds, phosphate ester compounds or sulfonebenzotriazole compounds. Can be mentioned.
- halogen-containing compound examples include a haloalkyl group-containing hydrocarbon compound or a haloalkyl group-containing heterocyclic compound.
- halogen-containing compound examples include 1,1-bis (4-chlorophenyl) -2,2,2-trichloroethane, 2-phenyl-4,6-bis (trichloromethyl) -s-triazine, or 2-naphthyl-4,6. -Bis (trichloromethyl) -s-triazine is preferred.
- diazomethane compound examples include bis (trifluoromethylsulfonyl) diazomethane, bis (cyclohexylsulfonyl) diazomethane, bis (phenylsulfonyl) diazomethane, bis (4-tolylsulfonyl) diazomethane, and bis (2,4-xylylsulfonyl) diazomethane.
- the sulfone compound examples include ⁇ -ketosulfone compounds, ⁇ -sulfonylsulfone compounds, and diaryldisulfone compounds.
- the sulfone compound 4-tolylphenacylsulfone, mesitylphenacylsulfone, bis (phenylsulfonyl) methane or 4-chlorophenyl-4-tolyldisulfone compound is preferable.
- the sulfonate compound examples include alkyl sulfonate, haloalkyl sulfonate, aryl sulfonate, and imino sulfonate compounds.
- the sulfonic acid ester compound benzoin-4-tolylsulfonate, pyrogallol tris (methylsulfonate), nitrobenzyl-9,10-diethoxyanthryl-2-sulfonate or 2,6- (dinitrobenzyl) phenylsulfonate is preferable.
- iminosulfonic acid ester compounds examples include benzyl monooxime-4-tolyl sulfonate, benzyl monooxime-4-dodecyl phenyl sulfonate, benzyl monooxime hexadecyl sulfonate, 4-nitroacetophenone oxime-4-tolyl sulfonate, 4,4 '-Dimethylbenzylmonooxime-4-tolylsulfonate, 4,4'-dimethylbenzylmonooxime-4-dodecylphenylsulfonate, dibenzylketone oxime-4-tolylsulfonate, ⁇ - (4-tolyloxy) imino- ⁇ -cyano Ethyl acetate, furyl monooxime-4- (aminocarbonyl) phenylsulfonate, acetone oxime-4-benzoylphenylsulfonate, 3- (benzyl mono
- carboxylic acid ester compound examples include carboxylic acid 2-nitrobenzyl ester.
- sulfonimide compound examples include N- (trifluoromethylsulfonyloxy) succinimide, N- (10-camphorsulfonyloxy) succinimide, N- (4-tolylsulfonyloxy) succinimide, N- (2-trifluoromethylphenyl).
- nonionic compounds are preferred to ionic compounds from the viewpoint of solubility and insulation performance of the cured film.
- those that generate benzenesulfonic acid, 4-toluenesulfonic acid, perfluoroalkylsulfonic acid or phosphoric acid are more preferable.
- Photobase generators include those that generate an organic base upon exposure and those that generate an inorganic base. From the viewpoint of generation efficiency of base by exposure and solubility, a photobase generator (E2) that generates amines is more preferable. Examples of the amines generated by exposure include aliphatic amines and aromatic amines.
- amines generated by exposure include ammonia, methylamine, ethylamine, n-propylamine, isopropylamine, n-butylamine, t-butylamine, n-hexylamine, n-octylamine, n-decylamine, n- Cetylamine, cyclopentylamine, cyclohexylamine, dimethylamine, diethylamine, di-n-propylamine, diisopropylamine, dicyclohexylamine, trimethylamine, triethylamine, dicyclohexylmethylamine, tetramethylenediamine, hexamethylenediamine, benzylamine, aniline, 1-naphthylamine 2-naphthylamine, dibenzylamine, diphenylamine, 1,2-phenylenediamine, 1,3-phenylenediamine, 1,4-ph Nylenediamine, 2,4
- Examples of photobase generators that generate amines upon exposure include orthonitrobenzyl carbamate compounds, ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyl carbamate compounds, and acyloxyimino compounds.
- orthonitrobenzyl carbamate compounds include N- (2-nitrobenzyloxy) carbonyl-N-methylamine, N- (2-nitrobenzyloxy) carbonyl-Nn-propylamine, N- (2-nitro Benzyloxy) carbonyl-Nn-hexylamine, N- (2-nitrobenzyloxy) carbonyl-N-cyclohexylamine, N- (2-nitrobenzyloxy) carbonylaniline, N- (2-nitrobenzyloxy) carbonyl Piperidine, N, N′-bis [(2-nitrobenzyloxy) carbonyl] -1,6-hexamethylenediamine, N, N′-bis [(2-nitrobenzyloxy) carbonyl] -1,4-phenylenediamine , N, N′-bis [(2-nitrobenzyloxy) carbonyl]- , 4-tolylenediamine, N, N′-bis [(2-nitrobenzyloxy) carbonyl] -4,4′-di
- Examples of the ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzylcarbamate compound include N- ( ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyloxy) carbonyl-N-methylamine, N- ( ⁇ , ⁇ - Dimethyl-3,5-dimethoxybenzyloxy) carbonyl-Nn-propylamine, N- ( ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyloxy) carbonyl-Nn-hexylamine, N- ( ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyloxy) carbonyl-N-cyclohexylamine, N- ( ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyloxy) carbonylaniline, N- ( ⁇ , ⁇ -dimethyl-3, 5-dimethoxybenzyloxy) carbonylpiperidine, N, N′-bis [( ⁇ , ⁇ -dimethyl-3,5-dimeth
- acyloxyimino compound examples include acetophenone-O-propanoyl oxime, benzophenone-O-propanoyl oxime, acetone-O-propanoyl oxime, acetophenone-O-butanoyl oxime, benzophenone-O-butanoyl oxime, acetone- O-butanoyl oxime, bis (acetophenone) -O, O′-hexane-1,6-dioyl oxime, bis (benzophenone) -O, O′-hexane-1,6-dioyl oxime, bis (acetone) -O, O'-hexane-1,6-dioyl oxime, acetophenone-O-acryloyl oxime, benzophenone-O-acryloyl oxime or acetone-O-acryloyl oxime.
- N- (2-nitrobenzyloxy) carbonyl-N-cyclohexylamine N, N′-bis [(2-nitrobenzyloxy) carbonyl] -1,6-hexamethylenediamine or N, N′- Bis [( ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyloxy) carbonyl] -1,6-hexamethylenediamine is preferred.
- the content of (E1) photoacid generator and / or (E2) photobase generator in the photosensitive resin composition is (A )
- the total of the polysiloxane and the radically polymerizable compound described below is 100 parts by weight, 0.01 to 15 parts by weight is preferable, and 0.1 to 10 parts by weight is more preferable.
- the content of (E1) photoacid generator and / or (E2) photobase generator is within the above range, the sensitivity during exposure and the hardness of the cured film can be improved.
- (A) polysiloxane is (A1) inorganic particle containing polysiloxane, it is set as 100 weight part including the weight of (B1) inorganic particle which comprises (A1) inorganic particle containing polysiloxane.
- the photosensitive resin composition of the present invention when the photosensitive resin composition of the present invention has positive photosensitivity, the photosensitive resin composition further contains (E1) a photoacid generator and / or (E2) a photobase generator. It is preferable to do.
- the pattern shape after thermosetting becomes good, and a pattern close to a rectangle is obtained. This is because, for example, a large amount of acid and / or base is generated from the compound after bleaching exposure after pattern processing by development, and therefore, dehydration condensation of residual silanol in (A) polysiloxane is accelerated during thermal curing. Thereby, the pattern shape after thermosetting becomes favorable and a pattern closer to a rectangle is obtained.
- (E1) Photoacid generator and (E2) photobase generator are those that do not inhibit the function of the compound having a naphthoquinonediazide structure that imparts positive photosensitivity to the photosensitive resin composition of the present invention. Is preferred. By selecting the appropriate (E1) photoacid generator and (E2) photobase generator and adjusting the content, the pattern shape after thermosetting is good without impairing the pattern processability with an alkaline developer. It becomes.
- the content of the (E1) photoacid generator and / or (E2) photobase generator in the photosensitive resin composition is (A )
- the polysiloxane is 100 parts by weight, it is preferably 0.01 to 15 parts by weight, more preferably 0.1 to 10 parts by weight.
- the pattern shape after thermosetting is good without impairing pattern processability with an alkali developer. Become.
- (A) polysiloxane is (A1) inorganic particle containing polysiloxane, it is set as 100 weight part including the weight of (B1) inorganic particle which comprises (A1) inorganic particle containing polysiloxane.
- the photosensitive resin composition of the present invention preferably further contains (E3) a thermal acid generator and / or (E4) a thermal base generator.
- the thermal acid generator refers to a compound that generates an acid by causing bond cleavage by heat.
- the thermal base generator refers to a compound that generates a base by causing bond cleavage by heat.
- the crack resistance of the cured film obtained from the photosensitive resin composition of the present invention at the time of thermosetting and ion implantation is improved.
- thermal acid generator and (E4) thermal base generator after application of the photosensitive resin composition of the present invention, heat or pre-baking does not generate acid or base, or only a small amount of acid or base is generated. Those that do not are preferred. For example, when the prebaking temperature is 100 ° C., a compound that generates an acid or a base at a temperature higher than 100 ° C. is preferable.
- thermal base generator are compounds that generate acid or base at a temperature higher than the pre-baking temperature, (A) dehydration condensation of residual silanol in polysiloxane is accelerated during pre-baking. In other words, sensitivity reduction during exposure and generation of residues after development are suppressed.
- Thermal acid generators include, for example, “Sun-Aid” (registered trademark) SI-60, SI-80, SI-100, SI-200, SI-110, SI-145, SI -150, SI-60L, SI-80L, SI-100L, SI-110L, SI-110L, SI-145L, SI-150L, SI-160L, SI-180L (all of these are Sanshin Chemical) Manufactured by Kogyo Co., Ltd.), 4-hydroxyphenyldimethylsulfonium trifluoromethanesulfonate, benzyl-4-hydroxyphenylmethylsulfonium trifluoromethanesulfonate, 2-methylbenzyl-4-hydroxyphenylmethylsulfonium trifluoromethanesulfonate, 4-acetoxyphenyldimethylsulfonium Trifluoromethanesulfonate 4acetoxyphenyl benzyl methyl sulfonium trifluoromethanes
- thermal base generator for example, “U-CAT” (registered trademark) SA1, SA102, SA102-50, SA106, SA112, SA506, SA603, 1000, 1102, 2000, 2024, 2026, 2030, 2110, 2313, 651M, 660M, 18X, 201G, 202, 420A, 130, "POLYCAT” (registered trademark) 8, 9, 12 and 41, and TMED (all of which are manufactured by San Apro Co., Ltd.).
- the content of the (E3) thermal acid generator and / or (E4) thermal base generator in the photosensitive resin composition of the present invention is 0.01 to 100 parts by weight based on (A) polysiloxane. 10 parts by weight is preferable, and 0.1 to 5 parts by weight is more preferable.
- the content of (E3) thermal acid generator and / or (E4) thermal base generator is within the above range, a cured film obtained from the photosensitive resin composition of the present invention at the time of thermal curing and ion implantation. The crack resistance can be improved.
- (A) polysiloxane is (A1) inorganic particle containing polysiloxane, it is set as 100 weight part including the weight of (B1) inorganic particle which comprises (A1) inorganic particle containing polysiloxane.
- the photosensitive resin composition of the present invention preferably further contains (F) a dissolution accelerating crosslinking agent.
- the dissolution accelerating crosslinking agent refers to a compound having a hydrophilic group or an alkali-soluble group and a crosslinking group.
- the dissolution accelerating crosslinking agent is a compound having a site capable of reacting with the silanol group in the polysiloxane (A) or the aromatic ring in the naphthoquinonediazide compound during thermosetting.
- (A) polysiloxane has an aromatic group, in particular, a naphthyl group
- the aromatic group of the compound improves compatibility with (A) polysiloxane and improves resolution and crack resistance. Further, the effect of suppressing the change in pattern dimension width can be further enhanced.
- R 35 and R 36 each independently represent hydrogen or an alkyl group having 1 to 6 carbon atoms
- R 37 and R 38 each independently represent hydrogen
- 1 to 6 represents an alkyl group, an alkoxy group having 1 to 6 carbon atoms, or a hydroxy group.
- X 1 represents a direct bond or an alkylene chain having 1 to 6 carbon atoms. When X 1 is a direct bond, a, b, x and y are 0.
- X 1 is not a direct bond
- X 2 and X 3 each independently represent a direct bond or an alkylene chain having 1 to 6 carbon atoms
- R 31 and R 32 each independently represent hydrogen
- each of R 33 and R 34 independently represents an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, or 6 to 6 carbon atoms.
- 15 aryl groups are represented.
- C and d each represents an integer of 0-2.
- x and y are 1, and a and b represent an integer of 1 to 6.
- R 39 represents an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms, or an aryl group having 6 to 15 carbon atoms
- R 40 and R 41 are each independently And hydrogen or an alkyl group having 1 to 6 carbon atoms.
- e represents an integer of 0 to 3.
- X 17 and X 18 each independently represent a direct bond or an alkylene chain having 1 to 6 carbon atoms
- R 65 to R 67 each independently represent 1 to 10 carbon atoms.
- R 68 and R 69 each independently represent hydrogen or an alkyl group having 1 to 6 carbon atoms
- R 70 and R 71 each independently represent hydrogen, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or a hydroxy group.
- X 11 and X 12 each independently represents a direct bond or an alkylene chain having 1 to 6 carbon atoms. When X 11 is a direct bond, f, g, p and q are 0. When X 12 is a direct bond, h, i, r and s are 0.
- X 11 or X 12 When X 11 or X 12 is not a direct bond, X 13 , X 14 , X 15 and X 16 each independently represent a direct bond or an alkylene chain having 1 to 6 carbon atoms, and R 61 to R 64 are And each independently represents hydrogen, a halogenated alkyl group having 1 to 6 carbon atoms or a halogen atom. J, k, and l represent integers of 0 to 2.
- p, q, r and s are 1, and f, g, h and i represent an integer of 1 to 6.
- X 1 is preferably a direct bond or an alkylene chain having 1 to 4 carbon atoms.
- X 1 is not a direct bond
- X 2 and X 3 are preferably each independently a direct bond or an alkylene chain having 1 to 4 carbon atoms.
- R 31 and R 32 are preferably each independently hydrogen, a halogenated alkyl group having 1 to 4 carbon atoms, or a halogen atom.
- R 33 and R 34 are preferably each independently an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, or an aryl group having 6 to 10 carbon atoms.
- R 35 and R 36 are preferably each independently hydrogen or an alkyl group having 1 to 4 carbon atoms.
- R 37 and R 38 are preferably each independently hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a hydroxy group.
- R 39 is preferably an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, or an aryl group having 6 to 10 carbon atoms.
- R 40 and R 41 are preferably each independently hydrogen or an alkyl group having 1 to 4 carbon atoms.
- X 11 and X 12 are preferably each independently a direct bond or an alkylene chain having 1 to 4 carbon atoms.
- X 13 , X 14 , X 15 , X 16 , X 17 and X 18 are preferably each independently a direct bond or an alkylene chain having 1 to 4 carbon atoms.
- R 61 to R 64 are preferably each independently hydrogen, a halogenated alkyl group having 1 to 4 carbon atoms, or a halogen atom.
- R 65 to R 67 are preferably each independently an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, or an aryl group having 6 to 10 carbon atoms.
- R 68 and R 69 are each independently preferably hydrogen or an alkyl group having 1 to 4 carbon atoms.
- R 70 and R 71 are each independently preferably hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a hydroxy group.
- Examples of (F) dissolution-promoting crosslinking agents include bis (4-hydroxy-3-hydroxymethyl-5-methylphenyl) methane, bis (4-hydroxy-3-methoxymethyl-5-methylphenyl) methane, 2, 2-bis (4-hydroxy-3-hydroxymethyl-5-methylphenyl) propane, 2,2-bis (4-hydroxy-3-methoxymethyl-5-methylphenyl) propane, 2,2-bis (4- Hydroxy-3-hydroxymethyl-5-methylphenyl) hexafluoropropane, 2,2-bis (4-hydroxy-3-methoxymethyl-5-methylphenyl) hexafluoropropane, bis [4-hydroxy-3,5- Bis (hydroxymethyl) phenyl] methane, bis [4-hydroxy-3,5-bis (methoxymethyl) phenyl Methane, 2,2-bis [4-hydroxy-3,5-bis (hydroxymethyl) phenyl] propane, 2,2-bis [4-hydroxy-3,5-bis (methoxymethyl) phenyl] propane, 2,2-bis [4-
- the content of the (F) dissolution accelerating crosslinking agent in the photosensitive resin composition of the present invention is preferably 0.01 to 15 parts by weight, based on 100 parts by weight of (A) polysiloxane, preferably 0.1 to 10 parts by weight is more preferable, 0.3 to 5 parts by weight is further preferable, and 0.5 to 3 parts by weight is particularly preferable.
- (F) When the content of the dissolution accelerating crosslinking agent is within the above range, the generation of residues after development can be suppressed, the resolution after development can be improved, and the cured film at the time of thermal curing and ion implantation In addition, it is possible to improve the crack resistance of the pattern, and further, it is possible to reduce the change in pattern dimension width with respect to the exposure amount during exposure and development.
- (A) polysiloxane is (A1) inorganic particle containing polysiloxane, it is set as 100 weight part including the weight of (B1) inorganic particle which comprises (A1) inorganic particle containing polysiloxane.
- the polysiloxane contains (F) a dissolution-promoting cross-linking agent, so that the resolution after development can be improved and the crack resistance at the time of thermosetting or ion implantation can be improved. Therefore, (A) a photosensitive resin composition containing polysiloxane is preferred for application to the step (1-1a) of heating the pattern of the composition to 500 to 1,500 ° C. described later. In addition, the composition is preferable in applying to the step (3-A) of treating the pattern of the composition at 0 to less than 300 ° C. described later. By the steps (1-1a) and (3-A), it is possible to shorten the steps required to remove the pattern of the composition, and it is possible to shorten the process time.
- the photosensitive resin composition of the present invention preferably further contains (G) a dissolution accelerator.
- G) A dissolution accelerator refers to a compound having a hydrophilic group or an alkali-soluble group.
- (G) As a dissolution accelerator, (G1) a compound represented by general formula (17) or a compound represented by general formula (18), and / or (G2) represented by general formula (19) An acrylic resin having a structural unit is preferred.
- X 4 and X 5 each independently represent a direct bond, an alkylene chain having 1 to 10 carbon atoms, a cycloalkylene chain having 4 to 10 carbon atoms, or an arylene chain having 6 to 15 carbon atoms.
- X 6 represents a direct bond or a methylene chain
- Y 3 represents a direct bond or an oxygen atom
- R 42 represents hydrogen, an alkyl group having 1 to 6 carbon atoms, or a cycloalkyl group having 4 to 7 carbon atoms.
- aryl group having 6 to 10 carbon atoms wherein R 43 and R 44 are each independently hydrogen, an alkyl group having 1 to 6 carbon atoms, an acyl group having 2 to 6 carbon atoms, or an alkyl group having 6 to 15 carbon atoms.
- R 43 and R 44 are each independently hydrogen, an alkyl group having 1 to 6 carbon atoms, an acyl group having 2 to 6 carbon atoms, or an alkyl group having 6 to 15 carbon atoms.
- f represents an integer of 0-2.
- X 7 represents a direct bond, an alkylene chain having 1 to 10 carbon atoms, a cycloalkylene chain having 4 to 10 carbon atoms, or an arylene chain having 6 to 15 carbon atoms
- X 8 and X 9 are Each independently represents an alkylene chain having 1 to 6 carbon atoms
- Y 4 represents a direct bond or an oxygen atom
- R 45 and R 46 each independently represent hydrogen, an alkyl having 1 to 6 carbon atoms, Group, an acyl group having 2 to 6 carbon atoms or an aryl group having 6 to 15 carbon atoms.
- g represents an integer of 0-2.
- R 47 and R 48 represent hydrogen or an alkyl group having 1 to 4 carbon atoms
- R 49 and R 50 each have a structural unit represented by the general formula (20).
- X 10 is a direct bond, an alkylene chain having 1 to 6 carbon atoms, a cyclohexane having 4 to 7 carbon atoms.
- An alkylene chain or an arylene chain having 6 to 10 carbon atoms is represented.
- X 4 and X 5 are each independently a direct bond, an alkylene chain having 1 to 6 carbon atoms, a cycloalkylene chain having 4 to 7 carbon atoms, or an arylene chain having 6 to 10 carbon atoms.
- R 43 and R 44 each independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, an acyl group having 2 to 4 carbon atoms, or an aryl group having 6 to 10 carbon atoms.
- f is preferably 0.
- X 7 is preferably a direct bond, an alkylene chain having 1 to 6 carbon atoms, a cycloalkylene chain having 4 to 7 carbon atoms, or an arylene chain having 6 to 10 carbon atoms.
- X 8 and X 9 are preferably each independently an alkylene chain having 1 to 4 carbon atoms.
- R 45 and R 46 are preferably each independently hydrogen, an alkyl group having 1 to 4 carbon atoms, an acyl group having 2 to 4 carbon atoms, or an aryl group having 6 to 10 carbon atoms.
- g is preferably 0.
- R 47 and R 48 are preferably hydrogen, a methyl group or an ethyl group.
- R 49 and R 50 are preferably an alkyl group having 1 to 4 carbon atoms or a cycloalkyl group having 4 to 6 carbon atoms having the structural unit represented by the general formula (20).
- X 10 is preferably a direct bond, an alkylene chain having 1 to 4 carbon atoms, or a cycloalkylene chain having 4 to 6 carbon atoms.
- R 51 represents hydrogen, an alkyl group having 1 to 4 carbon atoms or an alkyl group having 1 to 4 carbon atoms having a hydroxy group
- R 52 represents hydrogen or a carbon having a hydroxy group.
- R 51 is preferably hydrogen, a methyl group, an ethyl group, or a methyl group or an ethyl group having a hydroxy group.
- R 52 is preferably hydrogen, a methyl group, an ethyl group, or a methyl group or an ethyl group having a hydroxy group.
- g is preferably 1 or 2.
- H is preferably an integer of 0 to 10, more preferably an integer of 0 to 5.
- i is preferably an integer of 2 to 60, and more preferably an integer of 3 to 30.
- (G1) by containing the compound represented by the general formula (17) or the compound represented by the general formula (18), it is possible to suppress the generation of residues after development and improve the resolution after development. In addition, it is possible to improve the adhesion to the underlying substrate during alkali development. This is because the compound and the silanol group in the polysiloxane (A) react by a ring-opening reaction to release a hydrophilic hydroxy group, and the alkoxysilyl group in the compound interacts with the underlying substrate. It is presumed to increase the action.
- Examples of the compound represented by the general formula (17) or the compound represented by the general formula (18) include 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane, 2 -(3,4-epoxycyclohexyl) ethyltrimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltriethoxysilane, 3-[(3-ethyl-3-oxetanyl) methoxy] propyltrimethoxysilane or 3- Trifunctional silanes such as [(3-ethyl-3-oxetanyl) methoxy] propyltriethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 2- (3,4-epoxycyclohexyl) ethylmethyldimethoxysilane or 3- [ (3-Ethyl-3-oxetanyl) methoxy]
- the content of the compound represented by (G1) general formula (17) or the compound represented by general formula (18) in the photosensitive resin composition of the present invention is (A) 100 parts by weight of polysiloxane. In some cases, 0.01 to 15 parts by weight is preferable, 0.1 to 10 parts by weight is more preferable, and 0.3 to 5 parts by weight is even more preferable. (G1) When the content of the compound represented by the general formula (17) or the compound represented by the general formula (18) is within the above range, the generation of residues after development is suppressed, and the resolution after development is improved. In addition, it is possible to improve adhesion to the underlying substrate during alkali development.
- (A) polysiloxane is (A1) inorganic particle containing polysiloxane, it is set as 100 weight part including the weight of (B1) inorganic particle which comprises (A1) inorganic particle containing polysiloxane.
- the acrylic resin having the structural unit represented by the general formula (19) has a copolymer component having a structural unit represented by the general formula (20), a carboxy group or a carboxylic anhydride group (meta )
- a copolymer component of an acrylic compound, a copolymer component derived from a (meth) acrylic acid ester or other copolymer component, or a resin obtained by radical copolymerization, or a resin obtained by the method is further represented by the general formula ( A resin obtained by reacting a compound having a structural unit represented by 20) is preferred.
- a resin obtained by radical copolymerization of a copolymer component of a (meth) acrylic compound having a carboxy group or a carboxylic acid anhydride group, a copolymer component derived from a (meth) acrylic acid ester, or other copolymer components Further, a resin obtained by subjecting a compound having a structural unit represented by the general formula (20) and an epoxy group to a ring-opening addition reaction, or a (meth) acrylic compound having a carboxy group or a carboxylic anhydride group.
- a resin obtained by radical copolymerization of a polymerization component, a copolymer component derived from a (meth) acrylic acid ester, or other copolymer components further has a structural unit and a hydroxy group represented by the general formula (20).
- a resin obtained by esterifying a compound is also preferred. *
- (G2) Content ratio of the copolymer component having the structural unit represented by the general formula (19) in the structural unit derived from all copolymer components in the acrylic resin having the structural unit represented by the general formula (19) Is preferably 30 mol% or more, more preferably 40 mol% or more, and even more preferably 50 mol% or more.
- the content ratio is preferably 80 mol% or less, more preferably 75 mol% or less, and further preferably 70 mol% or less.
- film loss during alkali development can be suppressed.
- Examples of the structural unit represented by the general formula (20) include an ethylene glycol structural unit, a 1-hydroxymethylethylene glycol structural unit, a 1-hydroxyethylethylene glycol structural unit, a propylene glycol-ethylene glycol structural unit, and a butylene glycol- Examples include an ethylene glycol structural unit, a polyethylene glycol structural unit, a propylene glycol-polyethylene glycol structural unit, and a polypropylene glycol-polyethylene glycol structural unit.
- Examples of the compound having a hydroxy group include 2-hydroxyethyl (meth) acrylate, 2-methoxyethyl (meth) acrylate, 2- (2-hydroxy) ethoxyethyl (meth) acrylate, and (meth) acrylic.
- the acrylic resin having a structural unit represented by the general formula (19) preferably has a carboxy group or a carboxylic acid anhydride group.
- these groups function as alkali-soluble groups, suppress the generation of residues after development, and improve the resolution after development. be able to.
- (G2) As an acrylic resin having a structural unit represented by the general formula (19), for example, DISPERBYK-2000, DISPERBYK-2001, DISPERBYK-2008, DISPERBYK-2009, DISPERBYK-2010, DISPERBYK-2012, DISPERBYK-2015, DISPERBYK-2022, DISPERBYK-2025, DISPERBYK-20K, 81 3441 (all are manufactured by Big Chemie Japan Co., Ltd.).
- the content ratio of structural units derived from various copolymerization components in the acrylic resin having the structural unit represented by the general formula (19) is 1 H-NMR, 13 C-NMR, 29 Si-NMR, IR , TOF-MS, elemental analysis and ash content measurement can be combined.
- the Mw of the acrylic resin having the structural unit represented by the general formula (19) is preferably 1,000 or more, more preferably 3,000 or more, and more preferably 5,000 in terms of polystyrene measured by GPC. The above is more preferable. When Mw is within the above range, film loss during alkali development can be suppressed. On the other hand, Mw is preferably 100,000 or less, more preferably 50,000 or less, and even more preferably 20,000 or less. When Mw is within the above range, the resolution after development can be improved.
- radical polymerization initiator used for radical copolymerization examples include azo compounds such as 2,2′-azobis (isobutyronitrile) or 2,2′-azobis (2,4-dimethylvaleronitrile), or lauroyl peroxide. Or organic peroxides such as di-t-butyl peroxide, bis (4-t-butylcyclohexane-1-yl) peroxydicarbonate, t-butyl 2-ethylperoxyhexanoate, methyl ethyl ketone peroxide, benzoyl peroxide or cumene hydroperoxide. An oxide is mentioned.
- the inside of the reaction vessel is sufficiently purged with nitrogen by bubbling, vacuum degassing, etc., and then the copolymerization component and the radical polymerization initiator are added to the reaction solvent at 60 to 110 ° C.
- the reaction is preferably performed for 30 to 500 minutes.
- a (meth) acrylic compound having a carboxylic acid anhydride group is used as a copolymerization component, it is preferable to add a theoretical amount of water and react at 30 to 60 ° C. for 30 to 60 minutes.
- chain transfer agents such as a thiol compound, as needed.
- the content of the acrylic resin having the structural unit represented by (G2) general formula (19) in the photosensitive resin composition of the present invention is 0.005 when (A) 100 parts by weight of polysiloxane is used. -3 parts by weight is preferred, 0.01-2 parts by weight is more preferred, and 0.03-1 parts by weight is even more preferred. (G2) When the content of the acrylic resin having the structural unit represented by the general formula (19) is within the above range, generation of a residue after development can be suppressed and resolution after development can be improved.
- (A) polysiloxane is (A1) inorganic particle containing polysiloxane, it is set as 100 weight part including the weight of (B1) inorganic particle which comprises (A1) inorganic particle containing polysiloxane.
- the photosensitive resin composition of the present invention may further contain a radical polymerizable compound.
- a radically polymerizable compound refers to a compound having a plurality of ethylenically unsaturated double bond groups in the molecule.
- polymerization of the radical polymerizable compound proceeds due to radicals generated from the photopolymerization initiator described above, and the exposed portion of the composition containing polysiloxane is insolubilized in the alkaline developer, resulting in a negative pattern. Can be formed.
- thermosetting of a composition By containing a radically polymerizable compound, UV curing at the time of exposure is promoted, and sensitivity can be improved. Moreover, the crosslinking density after thermosetting of a composition can improve and the hardness of a cured film can be improved.
- a radically polymerizable compound having a (meth) acryl group, which is likely to proceed with radical polymerization is preferable.
- the double bond equivalent of the radical polymerizable compound is preferably from 80 to 400 g / mol from the viewpoint of improving sensitivity during exposure and improving the hardness of the cured film.
- radical polymerizable compound examples include diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, tetraethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, and trimethylolpropane di (meth) acrylate.
- the content of the radically polymerizable compound in the photosensitive resin composition of the present invention is preferably 0 to 30% by weight when the total of (A) polysiloxane and the radically polymerizable compound is 100% by weight. 0 to 20% by weight is more preferable, and 0 to 10% by weight is more preferable.
- the content of the radical polymerizable compound is within the above range, the sensitivity during exposure and the hardness of the cured film can be improved.
- (A) polysiloxane is (A1) inorganic particle containing polysiloxane, it is 100 weight% including the weight of (B1) inorganic particle which comprises (A1) inorganic particle containing polysiloxane.
- the photosensitive resin composition of the present invention may further contain a silane coupling agent.
- a silane coupling agent By containing the silane coupling agent, the interaction between the cured film and the substrate interface is increased, and the adhesion and chemical resistance of the cured film are improved.
- silane coupling agent examples include methyltrimethoxysilane, methyltriethoxysilane, methyltri-n-propoxysilane, methyltriisopropoxysilane, methyltri-n-butoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, ethyltriethoxysilane.
- -N-propoxysilane ethyltriisopropoxysilane, ethyltri-n-butoxysilane, n-propyltrimethoxysilane, n-propyltriethoxysilane, isopropyltrimethoxysilane, isopropyltriethoxysilane, n-butyltrimethoxysilane, n-butyltriethoxysilane, n-hexyltrimethoxysilane, n-hexyltriethoxysilane, n-octyltrimethoxysilane, n-decyltrimethoxysilane, cyclopentyl Trimethoxysilane, cyclohexyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropyltrie
- R 18 to R 21 each independently represents hydrogen, an alkyl group, an acyl group, or an aryl group, and o represents an integer of 1 to 15.
- R 18 to R 21 are each independently preferably hydrogen, an alkyl group having 1 to 6 carbon atoms, an acyl group having 2 to 6 carbon atoms, or an aryl group having 6 to 15 carbon atoms, Hydrogen, an alkyl group having 1 to 4 carbon atoms, an acyl group having 2 to 4 carbon atoms, or an aryl group having 6 to 10 carbon atoms is more preferable.
- alkyl group, acyl group and aryl group may be either unsubstituted or substituted.
- organosilane represented by the general formula (13) examples include tetrafunctional silanes such as tetramethoxysilane, tetraethoxysilane, tetra-n-propoxysilane, tetraisopropoxysilane, tetra-n-butoxysilane, and tetraacetoxysilane.
- Silane Silane, methyl silicate 51 (manufactured by Fuso Chemical Industry Co., Ltd.), M silicate 51, silicate 40 or silicate 45 (all of which are manufactured by Tama Chemical Industry Co., Ltd.) or methyl silicate 51, methyl silicate 53A, ethyl silicate 40 or Examples thereof include silicate compounds such as ethyl silicate 48 (all of which are manufactured by Colcoat Co., Ltd.).
- the photosensitive resin composition of the present invention has positive photosensitivity, from the viewpoint of improving the adhesion and chemical resistance of the cured film, 1-naphthyltrimethoxysilane, 2-naphthyltrisilane may be used as the silane coupling agent.
- the photosensitive resin composition of the present invention has negative photosensitivity, from the viewpoint of improving the adhesion and chemical resistance of the cured film, as the silane coupling agent, vinyltrimethoxysilane, vinyltriethoxysilane, 3 -Methacryloxypropyltrimethoxysilane, 3-methacryloxypropyltriethoxysilane, 3-acryloxypropyltrimethoxysilane, 3-acryloxypropyltriethoxysilane, 1-naphthyltrimethoxysilane, 2-naphthyltrimethoxysilane, 3 -Glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltriethoxysilane, 3 -[(3-Ethyl-3
- the content of the silane coupling agent in the photosensitive resin composition of the present invention is preferably 0.01 to 15 parts by weight, preferably 0.1 to 10 parts by weight, based on 100 parts by weight of (A) polysiloxane. Is more preferable.
- the content of the silane coupling agent is within the above range, the adhesion and chemical resistance of the cured film can be improved.
- (A) polysiloxane is (A1) inorganic particle containing polysiloxane, it is set as 100 weight part including the weight of (B1) inorganic particle which comprises (A1) inorganic particle containing polysiloxane.
- the photosensitive resin composition of the present invention may further contain a solvent.
- the solvent is preferably a compound having an alcoholic hydroxyl group, a compound having a carbonyl group, or a compound having three or more ether bonds from the viewpoint of improving the transparency of the resulting cured film by uniformly dissolving each component.
- a compound having a boiling point of 110 to 250 ° C. under atmospheric pressure is more preferable.
- the solvent is appropriately volatilized at the time of coating, the coating film is dried, and a good coating film with no coating unevenness can be obtained.
- the boiling point to 250 ° C. or lower, it is possible to reduce the amount of solvent remaining in the coating film and to reduce the amount of film shrinkage at the time of thermosetting, so that a cured film having good flatness can be obtained. it can.
- Examples of the compound having an alcoholic hydroxyl group and a boiling point of 110 to 250 ° C. under atmospheric pressure include hydroxyacetone, 4-hydroxy-2-butanone, 3-hydroxy-3-methyl-2-butanone, 4- Hydroxy-3-methyl-2-butanone, 5-hydroxy-2-pentanone, 4-hydroxy-2-pentanone, 4-hydroxy-4-methyl-2-pentanone (diacetone alcohol), methyl lactate, ethyl lactate, lactic acid n-propyl, n-butyl lactate, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol mono-n-propyl ether, ethylene glycol mono-n-butyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propi Glycol mono-n-propyl ether, propylene glycol mono-n-butyl ether, propylene glycol mono-t-butyl ether, diethylene glycol
- diacetone alcohol ethyl lactate, ethylene glycol monomethyl ether, propylene glycol monomethyl ether, diethylene glycol monomethyl ether, dipropylene glycol monomethyl ether, 3-methoxy-1-butanol, 3-methoxy-3-methyl-1 -Butanol or tetrahydrofurfuryl alcohol is preferred.
- Examples of the compound having a carbonyl group and having a boiling point of 110 to 250 ° C. under atmospheric pressure include, for example, n-butyl acetate, isobutyl acetate, 3-methoxy-n-butyl acetate, 3-methyl-3-methoxy-n -Butyl acetate, ethylene glycol monomethyl ether acetate, propylene glycol monomethyl ether acetate, methyl n-butyl ketone, methyl isobutyl ketone, diisobutyl ketone, 2-heptanone, acetylacetone, cyclopentanone, cyclohexanone, cycloheptanone, ⁇ -butyrolactone, ⁇ - Valerolactone, ⁇ -valerolactone, propylene carbonate, N-methyl-2-pyrrolidone, N, N′-dimethylformamide, N, N′-dimethylacetamide or 1,3-dimethyl-2-imi
- Examples of the compound having three or more ether bonds and a boiling point of 110 to 250 ° C. under atmospheric pressure include, for example, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol ethyl methyl ether, diethylene glycol di-n-propyl ether, dipropylene glycol Examples include dimethyl ether, dipropylene glycol diethyl ether, dipropylene glycol ethyl methyl ether, or dipropylene glycol di-n-propyl ether. From the viewpoint of applicability, diethylene glycol dimethyl ether, diethylene glycol ethyl methyl ether or dipropylene glycol dimethyl ether is preferred.
- the content of the solvent in the photosensitive resin composition of the present invention can be appropriately adjusted according to the coating method and the like. For example, when a coating film is formed by spin coating, the entire photosensitive resin composition is formed. The amount is generally 50 to 95% by weight.
- the photosensitive resin composition of the present invention may further contain a surfactant.
- a surfactant By containing an appropriate amount of the surfactant, the leveling property at the time of coating can be improved, the occurrence of uneven coating can be suppressed, and a uniform coating film can be obtained.
- surfactant examples include a fluorine-based surfactant, a silicone-based surfactant, a polyalkylene oxide-based surfactant, and a poly (meth) acrylate-based surfactant.
- fluorine-based surfactant examples include 1,1,2,2-tetrafluorooctyl (1,1,2,2-tetrafluoropropyl) ether, 1,1,2,2-tetrafluorooctyl hexyl ether, Octaethylene glycol bis (1,1,2,2-tetrafluorobutyl) ether, hexaethylene glycol (1,1,2,2,3,3-hexafluoropentyl) ether, octapropylene glycol bis (1,1, 2,2-tetrafluorobutyl) ether, hexapropylene glycol bis (1,1,2,2,3,3-hexafluoropentyl) ether, sodium perfluorododecylsulfonate, 1,1,2,2,8, 8,9,9,10,10-decafluorododecane, 1,1,2,2,3,3-hexafluorodeca N- [3- (perfluorooctanesulfonamid
- compounds having a fluoroalkyl group or a fluoroalkylene chain at any of the terminal, main chain, and side chain such as monoperfluoroalkylethyl phosphate, can be mentioned.
- examples of such compounds include “Megafac” (registered trademark) F-142D, F-172, F-173, F-183, F-444, F-445, and F-470.
- F-475, F-477, F-555 or F-559 (all of which are manufactured by Dainippon Ink and Chemicals, Inc.), "Ftop” (registered trademark) EF301, 303 or 352 (all of which are manufactured by Mitsubishi Materials Electronics), “Florard” (registered trademark) FC-430 or FC-431 (all of which are manufactured by Sumitomo 3M), “Asahi Guard” (registered) Trademark) AG710 (manufactured by Asahi Glass Co., Ltd.), “Surflon” (registered trademark) S-382, SC-101, SC-102, SC-103, SC-104, SC-105, or SC- 06 (above, both manufactured by AGC Seimi Chemical Co., Ltd.), BM-1000 or BM-1100 (above, both manufactured by Yusho Co., Ltd.) or NBX-15, FTX-218, or DFX-218 (above, any (Manufactured by Neos Co., Ltd
- silicone surfactant examples include SH28PA, SH7PA, SH21PA, SH30PA, or ST94PA (all of which are manufactured by Toray Dow Corning Co., Ltd.) or “BYK” (registered trademark) -301, 307, -331, -333 or -345 (all of which are manufactured by Big Chemie Japan Co., Ltd.).
- the content of the surfactant in the photosensitive resin composition of the present invention is preferably 0.0001 to 1% by weight of the entire photosensitive resin composition.
- the photosensitive resin composition of the present invention may further contain other resins or their precursors.
- the resin or a precursor thereof include polyimide, acrylic resin, epoxy resin, novolac resin, urea resin, polyamic acid, polyamideimide, polyamide, polybenzoxazole, polyurethane, or a precursor thereof.
- the photosensitive resin composition of the present invention further comprises (C) a compound having a naphthoquinone diazide structure or (D) a sensitizer that accelerates a photoreaction such as a photopolymerization initiator, and accelerates thermosetting of the photosensitive resin composition.
- a photoreaction such as a photopolymerization initiator
- thermosetting of the photosensitive resin composition One or more selected from the group consisting of a curing agent to be cured and a crosslinking agent for improving the crosslinking density of the cured film of the photosensitive resin composition may be contained.
- Examples of the sensitizer include anthracene compounds, anthraquinone compounds, and coumarin compounds.
- the curing agent include nitrogen-containing organic compounds, silicone resin curing agents, metal alkoxides, methylol group-containing aromatic compounds, methylol group-containing melamine derivatives, and methylol group-containing urea derivatives.
- Examples of the crosslinking agent include methylol group-containing aromatic compounds, methylol group-containing melamine derivatives, methylol group-containing urea derivatives, epoxy group-containing compounds, and oxetanyl group-containing compounds.
- the manufacturing method of the photosensitive resin composition of this invention The typical manufacturing method of the photosensitive resin composition of this invention is demonstrated.
- a photosensitive resin composition having positive photosensitivity for example, (C) a compound having a naphthoquinone diazide structure, (E1) a photoacid generator, (E2) a photobase generator, (E3) a thermal acid The generator, (E4) hot base generator and other additives are added to an arbitrary solvent and dissolved by stirring. Thereafter, (A) polysiloxane and (B) inorganic particles are added and stirred for 20 minutes to 3 hours to obtain a uniform solution. After stirring, the resulting solution is filtered to obtain the photosensitive resin composition of the present invention having positive photosensitivity.
- a photosensitive resin composition having negative photosensitivity for example, (D) a photopolymerization initiator, (E1) a photoacid generator, (E2) a photobase generator, (E3) a thermal acid The generator, (E4) hot base generator and other additives are added to an arbitrary solvent and dissolved by stirring. Thereafter, (A) polysiloxane and (B) inorganic particles are added and stirred for 20 minutes to 3 hours to obtain a uniform solution. After stirring, the resulting solution is filtered to obtain the photosensitive resin composition of the present invention having negative photosensitivity.
- ⁇ Process using the photosensitive resin composition of the present invention An example of an ion implantation process using the photosensitive resin composition of the present invention as an ion implantation mask resist as a process using the semiconductor device manufacturing method of the present invention will be described with reference to FIG.
- a photosensitive resin composition of the present invention is applied and prebaked on a silicon carbide semiconductor substrate 1 to form a polysiloxane film 2.
- the active actinic radiation 4 is irradiated through the mask 3 having a desired pattern.
- development and pattern processing are performed, and bleaching exposure and middle baking are performed as necessary, followed by thermal curing, thereby forming a polysiloxane pattern 2a having a desired pattern.
- ions 5 are implanted using the polysiloxane pattern 2 a as an ion implantation mask to form impurity regions 6 in the silicon carbide semiconductor substrate 1. Thereafter, (5) the polysiloxane pattern 2 a is removed from the silicon carbide semiconductor substrate 1.
- the method for manufacturing a semiconductor device of the present invention it is possible to perform ion implantation, dopant exposure, dry etching, or wet etching at a high temperature in a fine pattern region. And lead to improved performance.
- the number of processes can be reduced compared to the method using an SiO 2 film as an ion implantation mask, dopant exposure mask, dry etching mask, or wet etching mask, thereby improving productivity and shortening tact time. It becomes.
- the cured film of the composition containing polysiloxane that has been altered in the formation of the ionic impurity region can be easily removed without residue, leading to an improvement in yield in semiconductor device manufacturing.
- the manufacturing method of the semiconductor device of this invention has the process of obtaining the pattern of the photosensitive resin composition of this invention, or its hardened
- a process of obtaining the pattern of the photosensitive resin composition of the present invention for example, a process of coating the photosensitive resin composition on a substrate to form a film and then patterning, or the photosensitive resin composition on a substrate The process of apply
- the substrate examples include silicon, silicon dioxide (SiO 2 ), silicon silicon (Si 3 N 4 ), silicon carbide (SiC), gallium nitride (GaN), gallium phosphide (GaP), gallium arsenide (GaAs), Gallium aluminum arsenide (GaAlAs), gallium indium arsenide (GaInNAs), indium nitride (InN), indium phosphide (InP), indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium arsenide (InGaAs) , Indium gallium aluminum phosphorus (InGaAlP), indium gallium zinc oxide (IGZO), diamond, sapphire (Al 2 O 3 ), aluminum zinc oxide (AZO), aluminum nitride (AlN), zinc oxide (ZnO), zinc selenide ( ZnSe)
- Examples of the method for applying the photosensitive resin composition of the present invention include microgravure coating, spin coating, dip coating, curtain flow coating, roll coating, spray coating, and slit coating.
- the coating film thickness varies depending on the coating method and the solid content concentration and viscosity of the photosensitive resin composition of the present invention, but is usually applied so that the film thickness after coating and pre-baking is 0.1 to 30 ⁇ m.
- pre-bake after applying the photosensitive resin composition of the present invention on a substrate.
- Prebaking can use an oven, a hot plate, infrared rays, a flash annealing apparatus, a laser annealing apparatus, or the like.
- the prebake temperature is preferably 50 to 150 ° C.
- the prebake time is preferably 30 seconds to several hours. After pre-baking at 80 ° C. for 2 minutes, pre-baking at 120 ° C. for 2 minutes may be used, so that pre-baking may be performed in two or more stages. Examples of the pattern processing method include photolithography or etching.
- the substrate After applying and pre-baking the photosensitive resin composition of the present invention on the substrate, the substrate is exposed using an exposure machine such as a stepper, mirror projection mask aligner (MPA) or parallel light mask aligner (PLA).
- an exposure machine such as a stepper, mirror projection mask aligner (MPA) or parallel light mask aligner (PLA).
- MPA mirror projection mask aligner
- PPA parallel light mask aligner
- the active actinic radiation to be irradiated at the time of exposure include ultraviolet rays, visible rays, electron beams, X-rays, KrF (wavelength 248 nm) laser, ArF (wavelength 193 nm) laser, and the like.
- a j-line (wavelength 313 nm), i-line (wavelength 365 nm), h-line (wavelength 405 nm) or g-line (wavelength 436 nm) of a mercury lamp.
- the exposure amount is usually about 100 to 40,000 J / m 2 (10 to 4,000 mJ / cm 2 ) (i-line illuminometer value), and exposure is performed through a mask having a desired pattern as necessary. be able to.
- post-exposure baking may be performed.
- effects such as improved resolution after development or an increase in the allowable range of development conditions can be expected.
- an oven, a hot plate, infrared rays, a flash annealing apparatus, a laser annealing apparatus, or the like can be used.
- the post-exposure baking temperature is preferably 50 to 180 ° C., more preferably 60 to 150 ° C.
- the post-exposure baking time is preferably 10 seconds to several hours. When the post-exposure bake time is within the above range, the reaction proceeds favorably and the development time may be shortened.
- the photosensitive resin composition of the present invention has positive photosensitivity
- the exposed portion is removed with a developer after development, and a relief pattern can be obtained.
- the photosensitive resin composition of the present invention has negative photosensitivity, an unexposed portion is removed with a developer after development, and a relief pattern can be obtained.
- an alkali developer is generally used.
- the alkali developer for example, an organic alkaline solution or an aqueous solution of an alkaline compound is preferable, and an aqueous solution of an alkaline compound, that is, an alkaline aqueous solution is more preferable from the viewpoint of the environment.
- organic alkaline solution or the alkaline compound examples include 2-aminoethanol, 2- (dimethylamino) ethanol, 2- (diethylamino) ethanol, diethanolamine, methylamine, ethylamine, dimethylamine, diethylamine, triethylamine, acetic acid.
- an organic solvent may be used as the developer.
- the organic solvent include the above-mentioned solvents, ethyl acetate, ethyl pyruvate, ethyl 3-methoxypropionate, ethyl 3-ethoxypropionate, N-methyl-2-pyrrolidone, dimethyl sulfoxide or hexamethylphosphoric triamide. It is done.
- a mixed solution containing both the above organic solvent and a poor solvent for the photosensitive resin composition of the present invention may be used.
- the poor solvent for the photosensitive resin composition of the present invention include water, methanol, ethanol, isopropyl alcohol, toluene, and xylene.
- the above-described developer is directly applied to the exposed film, the developer is sprayed and radiated, the exposed film is immersed in the developer, or exposed.
- Examples include a method of irradiating ultrasonic waves after the subsequent film is immersed in the developer.
- the exposed film is preferably brought into contact with the developer for 5 seconds to 10 minutes.
- the obtained relief pattern is preferably washed with a rinsing solution.
- the rinse solution water is preferable when an alkaline aqueous solution is used as the developer.
- an aqueous solution of an alcohol such as ethanol or isopropyl alcohol
- an aqueous solution of an ester such as propylene glycol monomethyl ether acetate
- an aqueous solution of an acidic compound such as carbon dioxide, hydrochloric acid or acetic acid
- An organic solvent may be used as the rinse liquid.
- an organic solvent from the viewpoint of affinity with a developer, methanol, ethanol, isopropyl alcohol, ethyl acetate, ethyl lactate, ethyl pyruvate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, methyl 3-methoxypropionate, Ethyl 3-ethoxypropionate or 2-heptanone is preferred.
- thermosetting process described later After applying and pre-baking the photosensitive resin composition of the present invention on the substrate, a thermosetting process described later may be performed as necessary. Thereafter, a photoresist is applied to form a film on the coating film of the photosensitive resin composition by the same method as described above. After coating, it is preferable to pre-bake by the same method as described above.
- a photoresist is applied and prebaked, and then exposed and developed in the same manner as described above, whereby the coating film of the photosensitive resin composition is formed by photolithography.
- a photoresist pattern can be formed.
- thermosetting By thermosetting, the chemical resistance and dry etching resistance of the cured photoresist film are improved, and the photoresist pattern can be suitably used as an etching mask.
- an oven, a hot plate, infrared rays, a flash annealing apparatus, a laser annealing apparatus, or the like can be used.
- the thermosetting temperature is preferably 70 to 200 ° C.
- the thermosetting time is preferably 30 seconds to several hours.
- the photoresist coating film of the present invention under the pattern is patterned by etching using the photoresist pattern as an etching mask. Examples of the etching method include wet etching using an etchant or dry etching using an etching gas.
- As the etching solution it is preferable to use an acidic or alkaline etching solution or an organic solvent.
- acidic etchants include hydrofluoric acid, hydrochloric acid, hydrobromic acid, hydroiodic acid, perchloric acid, chloric acid, chlorous acid, hypochlorous acid, perbromic acid, bromic acid, Bromic acid, hypobromous acid, periodic acid, iodic acid, iodic acid, hypoiodous acid, sulfuric acid, sulfurous acid, hyposulfite, nitric acid, nitrous acid, phosphoric acid, phosphorous acid, hypophosphorous acid, phosphonic acid , Phosphinic acid, hexafluorophosphoric acid, hexafluoroantimonic acid, boric acid, tetrafluoroboric acid, formic acid, acetic acid, propionic acid, butanoic acid, trifluoroacetic acid, oxalic acid, lactic acid, methanesulfonic acid, p-toluenesulfonic acid And a solution of a compound exhibiting acidity such
- an organic alkaline solution or an aqueous solution of an alkaline compound is preferable.
- the organic alkaline solution or the alkaline compound include 2-aminoethanol, 2- (dimethylamino) ethanol, 2- (diethylamino) ethanol, diethanolamine, methylamine, ethylamine, dimethylamine, diethylamine, triethylamine, acetic acid.
- organic solvent examples include the aforementioned solvents, diethylene glycol mono-n-butyl ether, ethyl acetate, ethyl pyruvate, ethyl 3-methoxypropionate, ethyl 3-ethoxypropionate, N-methyl-2-pyrrolidone, dimethyl sulfoxide, Hexamethylphosphotriamide, methanol, ethanol, isopropyl alcohol, toluene or xylene.
- etching solution a mixed solution containing both an alkaline etching solution and an organic solvent may be used.
- the above etching solution is applied as it is to a substrate having a photoresist pattern formed on the coating film of the photosensitive resin composition of the present invention, or the above etching solution is made into a mist.
- the substrate on which the photoresist pattern is formed on the coating film of the photosensitive resin composition of the present invention to be radiated is immersed in the above-mentioned etching solution, or a photo is coated on the coating film of the photosensitive resin composition of the present invention. Examples include a method of irradiating an ultrasonic wave after the substrate on which the resist pattern is formed is immersed in the etching solution.
- the etching temperature at which the substrate having the photoresist pattern formed on the coating film of the photosensitive resin composition of the present invention is brought into contact with the etching solution is preferably 10 to 180 ° C, more preferably 20 to 160 ° C, and more preferably 30 to 140. ° C is more preferable, and 40 to 120 ° C is particularly preferable.
- the etching temperature is preferably a temperature less than the boiling point of the component.
- the etching time for contacting the substrate on which the photoresist pattern is formed on the coating film of the photosensitive resin composition of the present invention with the etching solution is preferably 10 seconds or more, more preferably 30 seconds or more, and further preferably 1 minute or more. Preferably, 3 minutes or more is particularly preferable, and 5 minutes or more is most preferable. On the other hand, from the viewpoint of tact time, the etching time is preferably 60 minutes or less, more preferably 45 minutes or less, further preferably 30 minutes or less, and particularly preferably 15 minutes or less.
- the coating film of the photosensitive resin composition of the present invention patterned by wet etching is washed with a rinsing liquid.
- the rinsing liquid include water, methanol, ethanol, isopropyl alcohol, ethyl acetate, ethyl lactate, ethyl pyruvate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, methyl 3-methoxypropionate, ethyl 3-ethoxypropionate. Or 2-heptanone is mentioned.
- the rinsing solution preferably contains water.
- etching gas examples include fluoromethane, difluoromethane, trifluoromethane, tetrafluoromethane, chlorofluoromethane, chlorodifluoromethane, chlorotrifluoromethane, dichlorofluoromethane, dichlorodifluoromethane, trichlorofluoromethane, sulfur hexafluoride, Xenon fluoride, oxygen, ozone, argon or fluorine may be mentioned.
- Examples of the dry etching method include reactive gas etching in which the above etching gas is exposed to a substrate having a photoresist pattern formed on the coating film of the photosensitive resin composition of the present invention, and the photosensitive resin of the present invention.
- Plasma etching in which an etching gas ionized or radicalized by electromagnetic waves is exposed to a substrate on which a photoresist pattern is formed on the coating film of the composition, or the photoresist on the coating film of the photosensitive resin composition of the present invention.
- Examples thereof include reactive ion etching in which an etching gas ionized or radicalized by electromagnetic waves is applied to a substrate on which a pattern is formed to be accelerated by applying a bias to collide with the substrate.
- the etching temperature at which the substrate on which the photoresist pattern is formed on the coating film of the photosensitive resin composition of the present invention is brought into contact with the etching gas is preferably 10 to 180 ° C, more preferably 20 to 160 ° C, and more preferably 30 to 140 ° C. ° C is more preferable, and 40 to 120 ° C is particularly preferable.
- the etching time for contacting the substrate on which the photoresist pattern is formed on the coating film of the photosensitive resin composition of the present invention with the etching gas is preferably 10 seconds or more, more preferably 30 seconds or more, and further preferably 1 minute or more. Preferably, 3 minutes or more is particularly preferable, and 5 minutes or more is most preferable. On the other hand, from the viewpoint of tact time, the etching time is preferably 60 minutes or less, more preferably 45 minutes or less, further preferably 30 minutes or less, and particularly preferably 15 minutes or less.
- the photoresist remaining on the coating film of the photosensitive resin composition of the present invention is removed to obtain the pattern of the photosensitive resin composition of the present invention.
- the method for removing the photoresist include removal using a resist stripping solution or removal by ashing.
- the resist stripping solution it is preferable to use an acidic or alkaline resist stripping solution or an organic solvent.
- the acidic resist stripping solution include an acidic solution or a mixed solution of an acidic solution and an oxidizing agent. From the viewpoint of removal of the photoresist, a mixed solution of an acidic solution and an oxidizing agent is preferable.
- Examples of the acidic solution include hydrofluoric acid, hydrochloric acid, hydrobromic acid, hydroiodic acid, perchloric acid, chloric acid, chlorous acid, hypochlorous acid, perbromic acid, bromic acid, and bromic acid.
- hypobromite periodic acid, iodic acid, iodic acid, hypoiodous acid, sulfuric acid, sulfurous acid, hyposulfite, nitric acid, nitrous acid, phosphoric acid, phosphorous acid, hypophosphorous acid, phosphonic acid, phosphine Acid, hexafluorophosphoric acid, hexafluoroantimonic acid, boric acid, tetrafluoroboric acid, formic acid, acetic acid, propionic acid, butanoic acid, trifluoroacetic acid, oxalic acid, lactic acid, methanesulfonic acid, p-toluenesulfonic acid, trifluoro Examples thereof include a solution of a compound exhibiting acidity such as romethanesulfonic acid or fluorosulfonic acid.
- hydrofluoric acid hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, formic acid, acetic acid or propionic acid are preferred, and sulfuric acid is more preferred.
- oxidizing agent examples include hydrogen peroxide, peracetic acid, m-chloroperbenzoic acid, benzoyl peroxide, di-t-butyl peroxide, t-butyl hydroperoxide, 1,4-benzoquinone, and 1,2-benzoquinone.
- an organic alkaline solution or an aqueous solution of an alkaline compound is preferable.
- the organic alkaline solution or the alkaline compound include 2-aminoethanol, 2- (dimethylamino) ethanol, 2- (diethylamino) ethanol, diethanolamine, methylamine, ethylamine, dimethylamine, diethylamine, triethylamine, acetic acid.
- organic solvent examples include the aforementioned solvents, diethylene glycol mono-n-butyl ether, ethyl acetate, ethyl pyruvate, ethyl 3-methoxypropionate, ethyl 3-ethoxypropionate, N-methyl-2-pyrrolidone, dimethyl sulfoxide, Hexamethylphosphotriamide, methanol, ethanol, isopropyl alcohol, toluene or xylene.
- the resist stripping solution a mixed solution containing both an alkaline resist stripping solution and an organic solvent may be used.
- the above resist stripping solution is applied as it is to the substrate on which the photoresist remains on the coating film of the photosensitive resin composition of the present invention or the above resist stripping solution is fogged.
- the substrate on which the photoresist remains on the coating film of the photosensitive resin composition of the present invention that radiates in the form of a liquid is immersed in the resist stripping solution, or on the coating film of the photosensitive resin composition of the present invention.
- a method of irradiating an ultrasonic wave after the substrate in which the photoresist remains is immersed in the resist stripping solution.
- the temperature at which the substrate on which the photoresist remains on the coating film of the photosensitive resin composition of the present invention is brought into contact with the resist stripping solution is preferably 10 to 180 ° C, more preferably 20 to 160 ° C, and more preferably 30 to 140 ° C. More preferred is 40 to 120 ° C.
- the immersion temperature is preferably a temperature less than the boiling point of the component.
- the time for contacting the substrate on which the photoresist remains on the coating film of the photosensitive resin composition of the present invention with the resist stripping solution is preferably 10 seconds or more, more preferably 30 seconds or more, and further preferably 1 minute or more, 3 minutes or more is particularly preferable, and 5 minutes or more is most preferable.
- the etching time is preferably 60 minutes or less, more preferably 45 minutes or less, further preferably 30 minutes or less, and particularly preferably 15 minutes or less.
- the rinsing liquid include water, methanol, ethanol, isopropyl alcohol, ethyl acetate, ethyl lactate, ethyl pyruvate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, methyl 3-methoxypropionate, ethyl 3-ethoxypropionate. Or 2-heptanone is mentioned.
- the rinse solution preferably contains water.
- Examples of the gas used for removal by ashing include a gas containing as a component at least one selected from the group consisting of oxygen, ozone, argon, fluorine, and chlorine. From the viewpoint of the removability of the photoresist, a gas containing oxygen or ozone as a component is preferable.
- photoexcited ashing in which the above gas is exposed to a substrate on which a photoresist remains on the coating film of the photosensitive resin composition of the present invention and ultraviolet rays are irradiated, or the photosensitive property of the present invention.
- examples include plasma ashing in which the above-described gas ionized or radicalized by electromagnetic waves is exposed to the substrate on which the photoresist remains on the coating film of the resin composition.
- the ashing temperature at which the substrate on which the photoresist remains on the coating film of the photosensitive resin composition of the present invention is brought into contact with the above gas is preferably 10 to 300 ° C, more preferably 20 to 250 ° C, and more preferably 30 to 220 ° C. Is more preferable, and 40 to 200 ° C. is particularly preferable.
- the ashing time for contacting the substrate having the photoresist remaining on the coating film of the photosensitive resin composition of the present invention with the above gas is preferably 10 seconds or more, more preferably 30 seconds or more, and further preferably 1 minute or more. 3 minutes or more is particularly preferable, and 5 minutes or more is most preferable.
- the etching time is preferably 60 minutes or less, more preferably 45 minutes or less, further preferably 30 minutes or less, and particularly preferably 15 minutes or less.
- Examples of the method for applying the photosensitive resin composition of the present invention in a pattern include letterpress printing, intaglio printing, stencil printing, planographic printing, screen printing, inkjet printing, offset printing, and laser printing.
- the coating film thickness varies depending on the coating method and the solid content concentration and viscosity of the photosensitive resin composition of the present invention, but is usually applied so that the film thickness after coating and pre-baking is 0.1 to 30 ⁇ m.
- pre-bake after coating the photosensitive resin composition of the present invention on a substrate in a pattern.
- Prebaking can use an oven, a hot plate, infrared rays, a flash annealing apparatus, a laser annealing apparatus, or the like.
- the prebake temperature is preferably 50 to 150 ° C.
- the prebake time is preferably 30 seconds to several hours. After pre-baking at 80 ° C. for 2 minutes, pre-baking at 120 ° C. for 2 minutes may be used, so that pre-baking may be performed in two or more stages.
- the pattern of the photosensitive resin composition of this invention is obtained by apply
- bleaching exposure After obtaining the pattern of the photosensitive resin composition of the present invention by one or more methods selected from the group consisting of film formation by applying to photolithography, etching or patterning, bleaching exposure may be performed.
- the pattern shape after thermosetting becomes good, and a pattern close to a rectangle is obtained.
- the transparency of the cured film can be improved.
- an exposure machine such as a stepper, a mirror projection mask aligner (MPA) or a parallel light mask aligner (PLA) can be used.
- the active actinic radiation to be irradiated during bleaching exposure include ultraviolet rays, visible rays, electron beams, X-rays, KrF (wavelength 248 nm) laser, ArF (wavelength 193 nm) laser, and the like. It is preferable to use a j-line (wavelength 313 nm), i-line (wavelength 365 nm), h-line (wavelength 405 nm) or g-line (wavelength 436 nm) of a mercury lamp.
- the exposure amount is usually about 500 to 500,000 J / m 2 (50 to 50,000 mJ / cm 2 ) (i-line illuminometer value), and exposure is performed through a mask having a desired pattern as necessary. be able to.
- Middle baking may be performed after obtaining a pattern of a composition containing polysiloxane. By performing middle baking, the resolution after thermosetting is improved and the pattern shape after thermosetting can be controlled.
- an oven, a hot plate, infrared rays, a flash annealing apparatus, a laser annealing apparatus, or the like can be used.
- the middle baking temperature is preferably 50 to 250 ° C, more preferably 70 to 220 ° C.
- the middle baking time is preferably 10 seconds to several hours.
- Middle baking may be performed in two or more stages such as middle baking at 100 ° C. for 5 minutes and then pre-baking at 150 ° C. for 5 minutes.
- the method for producing a semiconductor device of the present invention comprises (1) a step of obtaining a pattern of the photosensitive resin composition of the present invention or a cured product thereof on a substrate, and (1-1) the step of obtaining the photosensitive resin composition of the present invention. It is preferable to have a step of heating the pattern to 150 to 1,500 ° C.
- a step of heating the pattern to 150 to 1,500 ° C.
- an oven, a hot plate, a vertical furnace, a horizontal furnace, an electric furnace, a flash annealing apparatus, a laser annealing apparatus, infrared rays, or the like can be used.
- the coating film of the photosensitive resin composition of the present invention to 150 to 1,500 ° C. and thermosetting, the ion blocking property, chemical resistance and dry etching resistance of the cured film can be improved.
- the thermosetting temperature in the step (1-1) is preferably 200 ° C. or higher, more preferably 250 ° C. or higher, further preferably 300 ° C. or higher, and particularly preferably 400 ° C. or higher.
- the thermosetting temperature is within the above range, the ion blocking property of the cured film can be improved.
- the thermosetting temperature is preferably 800 ° C. or less, more preferably 600 ° C. or less, further preferably 500 ° C. or less, and particularly preferably 450 ° C. or less.
- the heat curing time in the step (1-1) is preferably 1 to 300 minutes, more preferably 5 to 250 minutes, further preferably 10 to 200 minutes, and 30 to 150 minutes. Is particularly preferred.
- the thermosetting time is within the above range, the occurrence of cracks during thermosetting can be suppressed, and the transparency and ion blocking property of the cured film can be improved. It may be thermally cured in two or more stages, such as thermosetting at 250 ° C. for 30 minutes and then thermosetting at 400 ° C. for 30 minutes.
- the pattern of the composition containing polysiloxane has many residues after treatment with an acidic or alkaline chemical solution. May occur or a cured film may remain and is difficult to remove.
- the pattern is altered by ion implantation or ion doping into the pattern of the composition containing polysiloxane in the ion implantation process or the ion doping process. Due to the alteration of the pattern, the solubility in an acidic or alkaline chemical solution is lowered, so that the removal becomes difficult.
- the pattern of the photosensitive composition containing a photosensitive organic compound is often produced after the impurity region forming step, for example, after treatment with hydrofluoric acid. In some cases, a residue is generated or a cured film remains.
- FIG. 3 A shows the spectrum before ion implantation, and B shows the spectrum after ion implantation.
- the peak of diamond-like carbon (hereinafter referred to as “DLC”) was detected after the ion implantation step.
- a main peak near 1,580 cm ⁇ 1 and a peak having a shoulder band near 1,390 cm ⁇ 1 are DLC peaks. Therefore, in the ion implantation process, organic substances present in the pattern are altered, and chemically stable DLC is generated. Therefore, it is considered that removal with an acidic or alkaline chemical is difficult.
- pattern alteration occurs due to the reaction of the gas or liquid of the compound having an element forming the impurity region with the pattern of the composition containing polysiloxane or the ion doping to the pattern. .
- the solubility in an acidic or alkaline chemical solution is reduced due to the alteration of the pattern, and thus the removal becomes difficult.
- the method for producing a semiconductor device of the present invention comprises (1) a step of obtaining a pattern of the photosensitive resin composition of the present invention or a cured product thereof on a substrate, (1-1a) the photosensitive resin composition of the present invention. It is more preferable to have a step of heating the object pattern to 500 to 1,500 ° C. By heating the pattern to 500 to 1,500 ° C. and thermally curing, the cured film of the composition containing polysiloxane can be easily removed without residue after formation of impurity regions on the semiconductor substrate described later. In addition, it is possible to shorten the process required for removal.
- the pattern is heated to 500 to 1,500 ° C. and thermally cured, whereby organic bonds in the pattern are cleaved, the organic substance is thermally decomposed and volatilized, and the pattern becomes SiO 2 .
- the pattern can be easily removed without residue. That is, since the pattern is changed to SiO 2 , it is possible to easily remove the pattern without a residue from the viewpoint of suppressing the deterioration of the pattern of the composition containing polysiloxane in the impurity region forming step described later. .
- the process (1-1a) can also serve as a baking process described later, the process required for removal can be shortened.
- the pattern is preferably baked at 500 to 1,500 ° C. in an air or oxygen atmosphere from the viewpoint of pattern removability and tact time of the composition containing polysiloxane.
- oxygen-containing gas a gas containing 10 to 100% by weight of oxygen at normal pressure
- a flow rate of 10 to 1,000 L / min for example, under air at normal pressure, under a gas containing 10 to 100% by weight of oxygen at normal pressure (hereinafter referred to as “oxygen-containing gas”), a flow rate of 10 to 1,000 L / min. Or an oxygen-containing gas stream having a flow rate of 10 to 1,000 L / min.
- an oven, a hot plate, a vertical furnace, a horizontal furnace, an electric furnace, a flash lamp annealing apparatus, a laser annealing apparatus, infrared rays, or the like can be used.
- the thermosetting temperature in the step (1-1a) is preferably 550 ° C. or higher, more preferably 600 ° C. or higher, further preferably 700 ° C. or higher, from the viewpoint of tact time. C. or higher is particularly preferable.
- the thermosetting temperature is within the above range, decomposition of the organic matter is promoted, and SiO 2 is easily promoted to be removed more easily. Moreover, since the SiO 2 progresses in a short time, the tact time can be shortened.
- the heat curing time in the step (1-1a) is preferably 1 minute or more, more preferably 5 minutes or more from the viewpoint of the pattern removability of the composition containing polysiloxane.
- 10 minutes or more is more preferable, and 30 minutes or more is particularly preferable.
- the thermosetting time is preferably 300 minutes or less, more preferably 240 minutes or less, still more preferably 180 minutes or less, and particularly preferably 120 minutes or less.
- the heat curing time in the step (1-1) is preferably 1 to 300 minutes, more preferably 5 to 250 minutes, further preferably 10 to 200 minutes, and 30 to 150 minutes. Is particularly preferred.
- the thermosetting time is within the above range, the occurrence of cracks during thermosetting can be suppressed, and the transparency and ion blocking property of the cured film can be improved. It may be thermally cured in two or more stages, such as thermosetting at 250 ° C. for 30 minutes and then thermosetting at 400 ° C. for 30 minutes.
- the effect of the process (1-1a) such as the pattern removability or the shortening of the tact time is not limited to the process of removing the pattern after the process of forming an impurity region described later.
- the effect of the process (1-1a) is that the pattern is converted to SiO 2 by heating the pattern to 500 to 1,500 ° C. and thermosetting it. Accordingly, in the process of patterning the substrate, which will be described later, specifically, in the process of removing the pattern after the dry etching process or the wet etching process, the pattern can be easily removed without any residue. In addition, it is possible to shorten the process required for removal.
- the method for producing a semiconductor device of the present invention comprises (2) a step of forming an impurity region on a substrate on which a pattern of the photosensitive resin composition of the present invention or a cured product thereof is formed and / or a substrate on which the pattern is formed. A pattern processing step.
- step (2) As a step of forming an impurity region on a substrate on which a pattern of the photosensitive resin composition of the present invention or a cured product thereof is formed, (2-A) a step of ion implantation into the substrate on which the pattern is formed; Or (2-B) a step of exposing the dopant to the substrate on which the pattern is formed may be mentioned.
- the step of patterning the substrate on which the pattern is formed includes (2-C) a step of patterning the substrate on which the pattern is formed by dry etching, or (2-D) forming the pattern There is a step of patterning the processed substrate by wet etching.
- the step (2) at least one selected from the group consisting of (2-A), (2-B), (2-C) and (2-D) is used. It is preferable to have these steps.
- the pattern-like impurity region can be formed in the substrate by ion-implanting into the substrate on which the pattern is formed using the pattern of the photosensitive resin composition of the present invention or a cured product thereof as an ion implantation mask. .
- (2-A) the step of ion implantation into the substrate on which the pattern of the photosensitive resin composition of the present invention or a cured product thereof is formed, using the pattern as an ion implantation mask, It is a step of forming an impurity region in the substrate by ionizing and colliding the element from a compound containing an element forming the impurity region with the substrate under the pattern.
- examples of the element used in the step (2-A) for forming an impurity region by ion implantation include, for example, boron, aluminum, gallium, indium, nitrogen, phosphorus, and arsenic. , Antimony, carbon, silicon, germanium, tin, oxygen, sulfur, selenium, tellurium, fluorine, chlorine, bromine, iodine, cadmium, zinc, titanium, tungsten or iron.
- Examples of the compound containing an element that forms an impurity region include boron trifluoride, boron trichloride, boron tribromide, trimethyl boronate, diborane, aluminum trichloride, gallium trichloride, indium trichloride, ammonia, Nitrogen oxide, nitrogen, phosphine, phosphorus trifluoride, phosphorus pentafluoride, phosphoryl chloride, diphosphorus pentoxide, phosphoric acid, arsine, arsenic trifluoride, antimony pentachloride, carbon tetrachloride, monosilane, disilane, trisilane, di Chlorosilane, trichlorosilane, silicon tetrafluoride, silicon tetrachloride, germane, tin tetrachloride, oxygen, hydrogen sulfide, hydrogen selenide, hydrogen telluride, hydrogen fluoride, chlorofluorocarbon, flu
- the step (2-A) preferably causes ions to collide with the substrate while heating the substrate.
- the ion implantation temperature at the time of ion implantation is generally 10 to 1,000 ° C., preferably 100 ° C. or higher, more preferably 200 ° C. or higher, further preferably 300 ° C. or higher, and particularly preferably 400 ° C. or higher. 500 ° C. or higher is most preferable.
- the ion implantation temperature is within the above range, damage to the crystal structure of the substrate during ion implantation can be suppressed.
- the step (2-A) applies a bias to ions and accelerates the ions to collide with the substrate.
- the acceleration energy of ions at the time of ion implantation is 1 to 10,000 keV. From the viewpoint of the ion implantation depth into the substrate, it is preferably 1 to 5,000 keV, more preferably 5 to 1,000 keV, and even more preferably 10 to 500 keV.
- the ion dose in the step (2-A) is generally 1 ⁇ 10 10 to 1 ⁇ 10 20 cm ⁇ 2 .
- 1 ⁇ 10 10 to 1 ⁇ 10 17 cm ⁇ 2 is preferable, and 1 ⁇ 10 11 to 1 ⁇ 10 15 cm ⁇ 2 is preferable. More preferred.
- the patterned impurity regions can be formed in the substrate by exposing the dopant to the substrate on which the pattern is formed. .
- the step of exposing the dopant to the substrate on which the pattern of the photosensitive resin composition of the present invention or a cured product thereof is formed includes using the pattern as a dopant exposure mask.
- an impurity region is formed in the substrate by exposing a substrate under the pattern to a compound containing an element that forms the impurity region.
- examples of the element used in the step (2-B) to form an impurity region by exposure to a dopant include, for example, boron, aluminum, gallium, indium, nitrogen, phosphorus, and arsenic. , Antimony, carbon, silicon, germanium, tin, oxygen, sulfur, selenium, tellurium, fluorine, chlorine, bromine, iodine, cadmium, zinc, titanium, tungsten or iron.
- Examples of the compound containing an element that forms an impurity region include boron trifluoride, boron trichloride, boron tribromide, trimethyl boronate, diborane, aluminum trichloride, gallium trichloride, indium trichloride, ammonia, Nitrogen oxide, nitrogen, phosphine, phosphorus trifluoride, phosphorus pentafluoride, phosphoryl chloride, diphosphorus pentoxide, phosphoric acid, arsine, arsenic trifluoride, antimony pentachloride, carbon tetrachloride, monosilane, disilane, trisilane, di Chlorosilane, trichlorosilane, silicon tetrafluoride, silicon tetrachloride, germane, tin tetrachloride, oxygen, hydrogen sulfide, hydrogen selenide, hydrogen telluride, hydrogen fluoride, chlorofluorocarbon, flu
- the step (2-B) is preferably performed by exposing a substrate to a compound containing an element that forms an impurity region.
- the dopant exposure temperature for the dopant exposure is generally 10 to 1,500 ° C., preferably 100 ° C. or higher, more preferably 200 ° C. or higher, further preferably 300 ° C. or higher, and particularly preferably 400 ° C. or higher. 500 ° C. or higher is most preferable.
- the dopant exposure temperature is within the above range, the element forming the impurity region is easily diffused into the substrate.
- the dopant exposure time in the step (2-B) is preferably 1 minute or more, more preferably 5 minutes or more, further preferably 10 minutes or more, and particularly preferably 30 minutes or more.
- the dopant exposure time is within the above range, the element forming the impurity region is likely to diffuse into the substrate.
- the dopant exposure time is preferably 300 minutes or less, more preferably 240 minutes or less, still more preferably 180 minutes or less, and particularly preferably 120 minutes or less.
- the substrate on which the pattern is formed can be processed into the pattern by dry etching the substrate on which the pattern is formed using the pattern of the photosensitive resin composition of the present invention or the cured product thereof as a dry etching mask.
- the step of patterning the substrate on which the pattern of the photosensitive resin composition of the present invention or a cured product thereof is formed by dry etching includes: In this step, the substrate under the pattern is patterned using an etching gas as a mask.
- etching gas examples include fluoromethane, difluoromethane, trifluoromethane, tetrafluoromethane, chlorofluoromethane, chlorodifluoromethane, chlorotrifluoromethane, dichlorofluoromethane, dichlorodifluoromethane, trichlorofluoromethane, sulfur hexafluoride, Xenon fluoride, oxygen, ozone, argon, fluorine, chlorine or boron trichloride can be mentioned.
- Examples of the dry etching method include reactive gas etching in which the etching gas is exposed to a substrate on which a pattern of the photosensitive resin composition of the present invention or a cured product thereof is formed, the photosensitive resin composition of the present invention, or Plasma etching in which an etching gas ionized or radicalized by electromagnetic waves is exposed to the substrate on which the cured product pattern is formed, or the photosensitive resin composition of the present invention or a substrate on which the cured product pattern is formed by electromagnetic waves.
- Examples include reactive ion etching in which an ionized or radicalized etching gas is accelerated by applying a bias to collide.
- the etching temperature in the step (2-C) is generally 10 to 400 ° C., preferably 20 ° C. or higher, more preferably 60 ° C. or higher, and further 100 ° C. or higher. Preferably, 120 degreeC or more is especially preferable.
- the etching temperature is within the above range, the etching rate can be improved.
- 300 ° C. or lower is preferable, 250 ° C. or lower is more preferable, 200 ° C. or lower is further preferable, and 150 ° C. or lower is particularly preferable.
- the etching time in the step (2-C) is preferably 10 seconds or longer, more preferably 30 seconds or longer, further preferably 1 minute or longer, particularly preferably 3 minutes or longer. Minutes or more are most preferred.
- the etching time is preferably 60 minutes or less, more preferably 45 minutes or less, further preferably 30 minutes or less, and particularly preferably 15 minutes or less.
- the substrate on which the pattern is formed can be processed into the pattern by wet etching the substrate on which the pattern is formed using the pattern of the photosensitive resin composition of the present invention or a cured product thereof as a wet etching mask.
- a step of patterning the substrate on which the pattern of the photosensitive resin composition of the present invention or a cured product thereof is formed by wet etching includes:
- the pattern lower layer substrate is patterned using an etchant.
- an acidic or alkaline chemical solution can be used as the etching solution.
- acidic etchants include hydrofluoric acid, hydrochloric acid, hydrobromic acid, hydroiodic acid, perchloric acid, chloric acid, chlorous acid, hypochlorous acid, perbromic acid, bromic acid, Bromic acid, hypobromous acid, periodic acid, iodic acid, iodic acid, hypoiodous acid, sulfuric acid, sulfurous acid, hyposulfite, nitric acid, nitrous acid, phosphoric acid, phosphorous acid, hypophosphorous acid, phosphonic acid , Phosphinic acid, hexafluorophosphoric acid, hexafluoroantimonic acid, boric acid, tetrafluoroboric acid, formic acid, acetic acid, propionic acid, butanoic acid, trifluoroacetic acid, oxalic acid, lactic acid, methanesulfonic acid, p-toluenesulfonic acid And a solution of a compound exhibiting acidity such
- an organic alkaline solution or an aqueous solution of an alkaline compound is preferable.
- the organic alkaline solution or the alkaline compound include 2-aminoethanol, 2- (dimethylamino) ethanol, 2- (diethylamino) ethanol, diethanolamine, methylamine, ethylamine, dimethylamine, diethylamine, triethylamine, acetic acid.
- etching solution a mixed solution containing both an alkaline etching solution and an organic solvent may be used.
- organic solvent include the aforementioned solvents, diethylene glycol mono-n-butyl ether, ethyl acetate, ethyl pyruvate, ethyl 3-methoxypropionate, ethyl 3-ethoxypropionate, N-methyl-2-pyrrolidone, dimethyl sulfoxide, Hexamethylphosphotriamide, methanol, ethanol, isopropyl alcohol, toluene or xylene.
- the above etching solution is applied as it is to the substrate on which the photosensitive resin composition of the present invention or a pattern of the cured product is formed, or the above etching solution is sprayed and radiated.
- a substrate on which a pattern of the photosensitive resin composition of the present invention or a cured product thereof is immersed in the above etching solution, or a substrate on which a pattern of the photosensitive resin composition of the present invention or a cured product thereof is formed examples include a method of irradiating ultrasonic waves after immersion in the etching solution.
- the etching temperature in the step (2-D) is generally 10 to 400 ° C., preferably 20 ° C. or higher, more preferably 60 ° C. or higher, and further 100 ° C. or higher. Preferably, 120 degreeC or more is especially preferable.
- the etching temperature is within the above range, the etching rate can be improved.
- 300 ° C. or lower is preferable, 250 ° C. or lower is more preferable, 200 ° C. or lower is further preferable, and 150 ° C. or lower is particularly preferable.
- the etching temperature is preferably a temperature that does not reach the boiling point of the components in the etching solution.
- the etching time in the step (2-D) is preferably 10 seconds or more, more preferably 30 seconds or more, further preferably 1 minute or more, particularly preferably 3 minutes or more. Minutes or more are most preferred.
- the etching time is preferably 60 minutes or less, more preferably 45 minutes or less, further preferably 30 minutes or less, and particularly preferably 15 minutes or less.
- the rinsing liquid include water, methanol, ethanol, isopropyl alcohol, ethyl acetate, ethyl lactate, ethyl pyruvate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, methyl 3-methoxypropionate, ethyl 3-ethoxypropionate. Or 2-heptanone is mentioned.
- the rinsing solution preferably contains water.
- the method for producing a semiconductor device of the present invention includes (3) a step of removing the pattern of the photosensitive resin composition of the present invention or a cured product thereof.
- the method for producing a semiconductor device of the present invention comprises (3) a step of removing the pattern of the photosensitive resin composition of the present invention or a cured product thereof, and (3-1) baking the pattern at 300 to 1,500 ° C. You may have a process. By baking the pattern at 300 to 1,500 ° C., bond breakage of the organic substance in the pattern, thermal decomposition of the organic substance, and volatilization of the organic substance proceed, and cracks occur in the pattern. The penetration of the chemical solution is promoted, and the pattern can be easily removed without residue. Further, by baking the pattern at 300 to 1,500 ° C., the deteriorated layer generated in the pattern also proceeds during ion implantation, so that the pattern can be easily removed without residue.
- the firing step it is preferable to fire the pattern at 300 to 1,500 ° C. in an air or oxygen atmosphere from the viewpoint of pattern removability and tact time of the composition containing polysiloxane.
- oxygen-containing gas a gas containing 10 to 100% by weight of oxygen at normal pressure
- a flow rate of 10 to 1,000 L / min for example, under air at normal pressure, under a gas containing 10 to 100% by weight of oxygen at normal pressure (hereinafter referred to as “oxygen-containing gas”), a flow rate of 10 to 1,000 L / min.
- oxygen-containing gas stream having a flow rate of 10 to 1,000 L / min.
- an oven for firing the pattern, an oven, a hot plate, a vertical furnace, a horizontal furnace, an electric furnace, a flash lamp annealing apparatus, a laser annealing apparatus, infrared rays, or the like can be used.
- the firing temperature in the firing step is preferably 400 ° C. or higher, more preferably 500 ° C. or higher, further preferably 600 ° C. or higher, and particularly preferably 800 ° C. or higher from the viewpoint of tact time.
- the firing temperature is within the above range, the decomposition of the organic matter is promoted and the SiO 2 conversion is likely to proceed, and the removal becomes easier.
- the tact time can be shortened.
- the firing time of the firing step is preferably 1 minute or longer, more preferably 5 minutes or longer, and more preferably 10 minutes or longer from the viewpoint of the pattern removability of the composition containing polysiloxane. More preferred is 30 minutes or more.
- the firing time is preferably 300 minutes or less, more preferably 240 minutes or less, still more preferably 180 minutes or less, and particularly preferably 120 minutes or less. After baking at 400 ° C. for 30 minutes, baking at 600 ° C. for 30 minutes may be performed in two or more stages.
- the method for producing a semiconductor device of the present invention comprises (1) a step of obtaining a pattern of the photosensitive resin composition of the present invention or a cured product thereof on a substrate, (1-1a) of the photosensitive resin composition of the present invention.
- the step of removing the pattern comprises (3-A) a step of treating the pattern at 0 to less than 300 ° C.
- the pattern is converted to SiO 2 by heating the pattern to 500 to 1,500 ° C., so that the pattern can be used as a baking step, so the pattern can be easily removed without residue. Furthermore, it is possible to shorten the process required for removing the pattern. That is, since the firing step can be omitted, the process time can be shortened.
- the pattern is already converted to SiO 2 , even if the subsequent process is performed at 0 to 300 ° C., the pattern can be easily removed without residue, and the tact time can be shortened. It becomes possible.
- step (3-A) examples include a step of immersing in a solution containing hydrofluoric acid described later, a step of ultraviolet treatment, a step of plasma treatment, or an alkaline solution, an organic solvent, an acidic solution, and an oxidizing agent.
- the processing temperature in the step (3-A) is preferably 250 ° C. or lower, more preferably 200 ° C. or lower, further preferably 150 ° C. or lower, from the viewpoint of shortening the tact time.
- a temperature of not higher than ° C is particularly preferred.
- the treatment temperature is preferably 10 ° C or higher, more preferably 20 ° C or higher, further preferably 40 ° C or higher, and particularly preferably 60 ° C or higher.
- the processing time in the step (3-A) is preferably 10 seconds or longer, more preferably 30 seconds or longer, further preferably 1 minute or longer, from the viewpoint of pattern removability. Minutes or more are particularly preferred, and 5 minutes or more are most preferred.
- the treatment time is preferably 60 minutes or less, more preferably 45 minutes or less, further preferably 30 minutes or less, and particularly preferably 15 minutes or less.
- the method for producing a semiconductor device of the present invention includes (3) a step of removing the pattern of the photosensitive resin composition of the present invention or a cured product thereof, and (3-2) a solution containing hydrofluoric acid. You may have the process immersed in. By dipping in a solution containing hydrofluoric acid, the pattern can be easily removed without residue. When the solution contains hydrofluoric acid, it effectively dissolves a silicon-derived component such as a silane coupling agent, silicone, siloxane, silica particles, or silicon dioxide in the pattern, and the pattern has no residue. It can be easily removed.
- a silicon-derived component such as a silane coupling agent, silicone, siloxane, silica particles, or silicon dioxide
- the solution containing hydrofluoric acid may contain a compound that generates fluoride ions.
- the lifetime of the solution containing hydrofluoric acid is improved.
- Examples of compounds that generate fluoride ions include ammonium fluoride, lithium fluoride, sodium fluoride, potassium fluoride, magnesium fluoride, calcium fluoride, strontium fluoride, barium fluoride, aluminum fluoride, or fluoride. Zinc is mentioned.
- the content of hydrofluoric acid in the solution containing hydrofluoric acid is preferably 10% by weight or more, more preferably 15% by weight or more, and further preferably 20% by weight or more.
- the time required for removing the pattern can be shortened.
- the immersion temperature for immersing in the solution containing hydrofluoric acid in the step (3-2) is preferably 10 to 40 ° C., more preferably 12 to 35 ° C., 15 More preferably, it is -30 ° C.
- the immersion temperature is within the above range, the time required for removing the pattern can be shortened and the lifetime of the solution is improved.
- the immersion time for immersing in the solution containing hydrofluoric acid in the step (3-2) is preferably 10 seconds or more from the viewpoint of the removability of the pattern. More preferably, it is 1 second or more, more preferably 1 minute or more, particularly preferably 3 minutes or more, and most preferably 5 minutes or more.
- the immersion time is preferably 30 minutes or less, more preferably 20 minutes or less, further preferably 10 minutes or less, and particularly preferably 5 minutes or less.
- the solution containing hydrofluoric acid in the step (3-2) may further contain nitric acid and / or sulfuric acid.
- nitric acid which is a strong acid having oxidizing power
- the solution improves the permeability of the chemical into the pattern, promotes bond cleavage in the pattern, and easily removes the pattern without residue. It becomes possible.
- disassembly of the organic substance in the said pattern is accelerated
- the content of hydrofluoric acid in the solution containing hydrofluoric acid and nitric acid is preferably 10 to 65% by weight, more preferably 10 to 50% by weight, and even more preferably 10 to 45% by weight.
- the time required for removing the pattern can be shortened.
- the content of nitric acid in the solution containing hydrofluoric acid and nitric acid is preferably 5 to 60% by weight, more preferably 10 to 55% by weight, and even more preferably 15 to 50% by weight.
- the time required for removing the pattern can be shortened.
- the content of hydrofluoric acid in the solution containing hydrofluoric acid and sulfuric acid is preferably 10% by weight or more, more preferably 15% by weight or more, and further preferably 20% by weight or more.
- the time required for removing the pattern can be shortened.
- the content of sulfuric acid in the solution containing hydrofluoric acid and sulfuric acid is preferably 5 to 70% by weight, more preferably 10 to 65% by weight, and further preferably 15 to 60% by weight.
- the content of sulfuric acid is within the above range, the time required for removing the pattern can be shortened.
- the content of hydrofluoric acid in the solution containing hydrofluoric acid, nitric acid and sulfuric acid is preferably 10 to 65% by weight, more preferably 10 to 50% by weight, and even more preferably 10 to 45% by weight.
- the time required for removing the pattern can be shortened.
- the content of nitric acid in the solution containing hydrofluoric acid, nitric acid and sulfuric acid is preferably 5 to 60% by weight, more preferably 10 to 55% by weight, and even more preferably 15 to 50% by weight.
- the time required for removing the pattern can be shortened.
- the content of sulfuric acid in the solution containing hydrofluoric acid, nitric acid and sulfuric acid is preferably 5 to 70% by weight, more preferably 10 to 65% by weight, and further preferably 15 to 60% by weight.
- the time required for removing the pattern can be shortened.
- the substrate from which the pattern has been removed is preferably washed with a rinse solution.
- rinsing liquid examples include water, methanol, ethanol, isopropyl alcohol, ethyl acetate, ethyl lactate, ethyl pyruvate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, methyl 3-methoxypropionate, ethyl 3-ethoxypropionate. Or 2-heptanone is mentioned.
- a rinse liquid what contains water is preferable.
- the method for producing a semiconductor device of the present invention includes (3) a step of removing the pattern of the photosensitive resin composition of the present invention or a cured product thereof, and (3-2) a solution containing hydrofluoric acid. (3-3) UV treatment, (3-4) Plasma treatment, and (3-5) Alkaline solution, organic solvent, acidic solution, and oxidizing agent. You may have a 1 or more types of process of the process immersed in the chemical
- the gas used in the (3-3) ultraviolet treatment step or (3-4) plasma treatment step is selected from the group consisting of oxygen, ozone, argon, fluorine, and chlorine. And a gas containing one or more of the above as a component. From the viewpoint of removability of the pattern of the photosensitive resin composition of the present invention or its cured product, a gas containing oxygen or ozone as a component is preferable.
- Examples of the step (3-3) include a step of exposing the above-described gas to the substrate on which the photosensitive resin composition of the present invention or a pattern of the cured product is formed and irradiating ultraviolet rays.
- the wavelength of ultraviolet rays used in the step (3-3) is generally 10 to 450 nm, and preferably 20 to 400 nm and more preferably 50 to 350 nm from the viewpoint of the pattern removability.
- Examples of the step (3-4) include a step of exposing the above-described gas ionized or radicalized by electromagnetic waves to the substrate on which the pattern of the photosensitive resin composition of the present invention or a cured product thereof is formed. .
- the processing temperature in the step (3-3) or (3-4) is preferably 10 to 300 ° C., more preferably 20 to 250 ° C. from the viewpoint of the pattern removability.
- 30 to 220 ° C is more preferable, and 40 to 200 ° C is particularly preferable.
- the processing time of the step (3-3) or (3-4) is preferably 10 seconds or more, more preferably 30 seconds or more, from the viewpoint of the removability of the pattern. It is more preferably 1 minute or longer, particularly preferably 3 minutes or longer, and most preferably 5 minutes or longer.
- the chemical solution used in the step of (3-5) dipping in a specific chemical solution can dissolve the components in the pattern of the photosensitive resin composition of the present invention to be removed or its cured product. It is preferable to select a suitable chemical solution, which makes it possible to shorten the time required for removing the pattern.
- an organic alkaline solution or an aqueous solution of an alkaline compound is preferable.
- the organic alkaline solution or the alkaline compound include 2-aminoethanol, 2- (dimethylamino) ethanol, 2- (diethylamino) ethanol, diethanolamine, methylamine, ethylamine, dimethylamine, diethylamine, triethylamine, acetic acid.
- 2-aminoethanol 2- (diethylamino) ethanol, diethanolamine, diethylamine, triethylamine, ethylenediamine, hexamethylenediamine, ammonia, tetramethylammonium hydroxide, sodium hydroxide, potassium hydroxide, carbonic acid Sodium or potassium carbonate is preferred.
- the content of the organic alkaline solution or the alkaline compound in the alkaline solution is preferably 0.01% by weight or more, more preferably 0.1% by weight or more, further preferably 1% by weight or more, and 10% by weight or more. Is particularly preferred. When the content of the organic alkaline solution or the compound showing alkalinity is within the above range, the time required for removing the pattern can be shortened.
- organic solvent examples include hydroxyacetone, 4-hydroxy-2-butanone, 3-hydroxy-3-methyl-2-butanone, 4-hydroxy-3-methyl-2-butanone, 5-hydroxy-2-pentanone, 4-hydroxy-2-pentanone, 4-hydroxy-4-methyl-2-pentanone (diacetone alcohol), methyl lactate, ethyl lactate, n-propyl lactate, n-butyl lactate, ethylene glycol monomethyl ether, ethylene glycol monoethyl Ether, ethylene glycol mono-n-propyl ether, ethylene glycol mono-n-butyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono-n-propyl ether, propylene glycol Non-n-butyl ether, propylene glycol mono-t-butyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propy
- the content of the organic alkaline solution or the compound showing alkalinity in the mixed solution of the alkaline solution and the organic solvent is preferably 0.01% by weight or more, more preferably 0.1% by weight or more, and further preferably 1% by weight or more. It is preferably 10% by weight or more.
- the time required for removing the pattern can be shortened.
- the content of the organic solvent in the mixed solution of the alkali solution and the organic solvent is preferably 1% by weight or more, more preferably 3% by weight or more, further preferably 5% by weight or more, and particularly preferably 10% by weight or more.
- the time required for removing the pattern can be shortened. If it is less than 1% by weight, the remaining pattern may not be completely removed or it may take a long time to remove the pattern.
- Examples of the acidic solution include hydrofluoric acid, hydrochloric acid, hydrobromic acid, hydroiodic acid, perchloric acid, chloric acid, chlorous acid, hypochlorous acid, perbromic acid, bromic acid, and bromic acid.
- hypobromite periodic acid, iodic acid, iodic acid, hypoiodous acid, sulfuric acid, sulfurous acid, hyposulfite, nitric acid, nitrous acid, phosphoric acid, phosphorous acid, hypophosphorous acid, phosphonic acid, phosphine Acid, hexafluorophosphoric acid, hexafluoroantimonic acid, boric acid, tetrafluoroboric acid, formic acid, acetic acid, propionic acid, butanoic acid, trifluoroacetic acid, oxalic acid, lactic acid, methanesulfonic acid, p-toluenesulfonic acid, trifluoro Examples thereof include a solution of a compound exhibiting acidity such as romethanesulfonic acid or fluorosulfonic acid.
- the content of the compound exhibiting acidity in the acidic solution is preferably 0.01% by weight or more, more preferably 0.1% by weight or more, further preferably 1% by weight or more, and particularly preferably 10% by weight or more.
- the time required for removing the pattern can be shortened.
- oxidizing agent examples include hydrogen peroxide, peracetic acid, m-chloroperbenzoic acid, benzoyl peroxide, di-t-butyl peroxide, t-butyl hydroperoxide, 1,4-benzoquinone, and 1,2-benzoquinone.
- the content of the compound showing acidity in the mixed solution of the acidic solution and the oxidizing agent is preferably 0.01% by weight or more, more preferably 0.1% by weight or more, further preferably 1% by weight or more, and 10% by weight or more. Is particularly preferred. When the content of the acidic compound is within the above range, the time required for removing the pattern can be shortened.
- the content of the oxidizing agent in the mixed solution of the acidic solution and the oxidizing agent is preferably 0.1 to 30% by weight, more preferably 0.5 to 25% by weight, and further preferably 1 to 20% by weight.
- the time required for removing the pattern can be shortened.
- the immersion temperature for immersing in a specific chemical solution in the step (3-5) is preferably 10 to 180 ° C, more preferably 20 to 160 ° C, and further preferably 30 to 140 ° C. A temperature of 40 to 120 ° C. is preferable.
- the immersion temperature is preferably a temperature less than the boiling point of the component.
- the immersion time of immersing in a specific chemical solution in the step (3-5) is preferably 10 seconds or more, more preferably 30 seconds or more from the viewpoint of the removability of the pattern. It is more preferably 1 minute or longer, particularly preferably 3 minutes or longer, and most preferably 5 minutes or longer.
- the immersion time is preferably 30 minutes or less, more preferably 20 minutes or less, further preferably 10 minutes or less, and particularly preferably 5 minutes or less.
- the substrate from which the pattern has been removed is preferably washed with a rinse solution.
- the rinsing liquid include water, methanol, ethanol, isopropyl alcohol, ethyl acetate, ethyl lactate, ethyl pyruvate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, methyl 3-methoxypropionate, ethyl 3-ethoxypropionate. Or 2-heptanone is mentioned.
- a rinse liquid what contains water is preferable.
- the step of immersing in a specific chemical solution is (3-5 ′) irradiating the specific chemical solution with ultrasonic waves while immersing or irradiating ultrasonic waves after immersion. It may be a process to do.
- the molecules of a component in a specific chemical solution are accelerated, and the pattern is identified by promoting collision with the component in the pattern of the photosensitive resin composition of the present invention or its cured product. It can be easily dissolved in the chemical solution. Therefore, it is possible to shorten the time required for removing the pattern by irradiating ultrasonic waves.
- the frequency of the ultrasonic wave to be irradiated is preferably 20 to 3,000 kHz, more preferably 25 to 500 kHz, further preferably 25 to 150 kHz, and particularly preferably 25 to 70 kHz.
- the frequency is within the above range, the time required for removing the pattern can be shortened.
- the method for producing a semiconductor device of the present invention includes (3) a step of removing ultraviolet rays as a step of removing the pattern of the photosensitive resin composition of the present invention or a cured product thereof, and (3-4) a plasma treatment. Or (3-5) the step of immersing in a specific chemical solution, and further (3-6) the specific chemical solution, immersed in a chemical solution different from the chemical solution used in the step (3-5). You may have the process to do.
- This step is selected from the group consisting of (3-2) the step of immersing the pattern in a solution containing hydrofluoric acid, and (3-3), (3-4) and (3-5). It is introduced instead of reducing the time of one or more processes.
- the purpose is to shorten the process time.
- the chemical solution used in the step (3-6) is preferably selected from a chemical solution different from the chemical solution used in the step (3-5) and a chemical solution that can dissolve the components in the pattern to be removed. .
- a chemical different from the chemical used in the step (3-5) even a pattern of a composition composed of various and complex components such as organic and inorganic hybrids can be easily removed without residue. This makes it possible to shorten the time required to remove the pattern.
- a polysiloxane film 8 is formed by applying and prebaking the photosensitive resin composition of the present invention on a silicon carbide semiconductor substrate 7.
- active actinic radiation 10 is irradiated through a mask 9 having a desired pattern.
- (4) using the polysiloxane pattern 8 a as an etching mask the silicon carbide semiconductor substrate 7 is patterned by dry etching to form a pattern 11 in the silicon carbide semiconductor substrate 7.
- the silicon carbide semiconductor substrate 7a on which the pattern 11 is formed is obtained by removing the polysiloxane pattern 8a from the silicon carbide semiconductor substrate 7 in accordance with the method for manufacturing a semiconductor device of the present invention.
- a polysiloxane pattern 12a having a desired pattern is formed on the silicon carbide semiconductor substrate 7a from the photosensitive resin composition of the present invention by the same method as described above.
- ions 13 are implanted to form an impurity region 14 in the silicon carbide semiconductor substrate 7a, and an altered layer 15 is generated in the polysiloxane pattern.
- the silicon carbide semiconductor substrate 7b having the impurity region 14 is obtained. can get.
- the photosensitive resin composition of the present invention is a photosensitive resin composition capable of forming a high resolution pattern, capable of obtaining a cured film excellent in heat resistance and crack resistance, and capable of alkali development. Furthermore, the cured film obtained by thermosetting the photosensitive resin composition has high transparency.
- the cured film obtained from the photosensitive resin composition of the present invention is a polysiloxane-based cured film obtained by heating the coating film of the photosensitive resin composition to 150 to 1,000 ° C. and thermally curing it. .
- the thermosetting temperature is preferably 200 ° C. or higher, more preferably 250 ° C. or higher, further preferably 300 ° C. or higher, and particularly preferably 400 ° C. or higher. When the thermosetting temperature is within the above range, the heat resistance of the cured film can be improved.
- the thermosetting temperature is preferably 800 ° C. or less, more preferably 600 ° C. or less, further preferably 500 ° C. or less, and particularly preferably 450 ° C. or less. Therefore, the cured film obtained by thermosetting the photosensitive resin composition of the present invention is a polysiloxane-based cured film having high transparency and high heat resistance.
- the cured film obtained from the photosensitive resin composition of the present invention is a fired film obtained by firing the coating film of the photosensitive resin composition at 300 to 1,100 ° C. in air or oxygen atmosphere. It doesn't matter.
- organic bond bonding cleavage, organic substance thermal decomposition, and organic substance volatilization proceed in the coating film. It is possible to obtain a silica-based fired film having a small amount of residual organic substances similar to the SiO 2 film. Therefore, the fired film obtained by firing the photosensitive resin composition of the present invention is a silica-based fired film having high transparency and high heat resistance.
- the cured film obtained by thermosetting the photosensitive resin composition of the present invention is a polysiloxane-based cured film or a silica-based fired film having a high-resolution pattern and having high transparency and high heat resistance. Therefore, for example, it can be suitably used for applications such as a gate insulating film, an interlayer insulating film, a protective film for metal wiring, an insulating film for metal wiring, or a planarization film for TFT.
- the photosensitive resin composition of the present invention it is possible to prepare a coating solution that can form a high-resolution pattern and can obtain a cured film excellent in heat resistance and crack resistance. .
- a cured film suitably used for applications such as a gate insulating film, an interlayer insulating film, a protective film for metal wiring, an insulating film for metal wiring, or a flattening film for TFT is provided.
- a gate insulating film an interlayer insulating film
- a protective film for metal wiring an insulating film for metal wiring
- a flattening film for TFT is provided.
- an element including the cured film for use as the insulating film, the protective film, the planarizing film, or the like it is possible to obtain an element including the cured film for use as the insulating film, the protective film, the planarizing film, or the like.
- the method for manufacturing a semiconductor device of the present invention it is possible to perform ion implantation, dopant exposure, dry etching, or wet etching at a high temperature in a fine pattern region, thereby improving yield and performance in semiconductor manufacturing. Connected.
- productivity can be improved and tact time can be shortened.
- a high-resolution pattern can be formed, and by using a cured film having excellent heat resistance and crack resistance, formation of impurity regions on a semiconductor substrate, etc. Thereafter, it is possible to shorten the process required for removing the cured film of the composition, and it is possible to shorten the process time.
- 46DMOC “AV Light” (registered trademark) 46DMOC (manufactured by Asahi Organic Materials Co., Ltd .; 2,4-bis (methoxymethyl) -6-methylphenol) AIBN: 2,2′-azobis (isobutyronitrile)
- BYK-3440 Water-soluble acrylic resin (by Big Chemie Japan Co., Ltd.)
- CF 4 Tetrafluoromethane
- DAA Diacetone alcohol
- Dimethylol-BisOC-P 2- (4-hydroxy-3-hydroxymethyl-5-methyl) phenyl-2- [4- (4-hydroxy-3-hydroxymethyl- 5-methyl) phenyl] propane (Honshu Chemical Industry Co., Ltd.)
- EtOH Ethanol
- FPD Flat panel display
- HF Hydrofluoric acid
- HMDS Hexamethyldisilazane
- IPA Isopropyl alcohol
- KBM-04 Tetramethoxysilane (manufactured by Shin-Etsu Chemical Co
- Synthesis Example 1 Synthesis of Polysiloxane Solution (A-1) In a three-necked flask, 30.06 g (50 mol%) of dimethyldimethoxysilane, 19.03 g (25 mol%) of tetramethoxysilane, and 17.03 g (25 mol) of methyltrimethoxysilane %) And 51.67 g of DAA were charged. Air was passed through the flask at 0.05 L / min, and the mixed solution was heated to 40 ° C. in an oil bath while stirring. While further stirring the mixed solution, an aqueous phosphoric acid solution in which 0.331 g of phosphoric acid was dissolved in 24.78 g of water was added over 10 minutes.
- the silane compound was hydrolyzed by stirring at 40 ° C. for 30 minutes. Thereafter, the bath temperature was raised to 70 ° C. and stirred for 1 hour, and then the bath temperature was raised to 110 ° C. About 1 hour after the start of the temperature increase, the internal temperature of the solution reached 100 ° C., and was then heated and stirred for 1 to 3 hours (the internal temperature was 95 to 105 ° C.).
- the resin solution obtained by heating and stirring for 1 to 3 hours was cooled in an ice bath, and then 2% by weight of an anion exchange resin and a cation exchange resin were added to the resin solution, followed by stirring for 12 hours.
- the resulting polysiloxane solution (A-1) had a solid content concentration of 38% by weight, and the polysiloxane had an Mw of 3,600.
- Synthesis Example 2 Synthesis of polysiloxane solution (A-2) 12.02 g (20 mol%) of dimethyldimethoxysilane, 7.61 g (10 mol%) of tetramethoxysilane, 47.68 g (70 mol%) of methyltrimethoxysilane, Polymerization was carried out in the same manner as in Synthesis Example 1 using 50.87 g of DAA, 26.13 g of water, and 0.337 g of phosphoric acid to obtain a polysiloxane solution (A-2). The resulting polysiloxane solution (A-2) had a solid content concentration of 40% by weight and a polysiloxane Mw of 4,000.
- Synthesis Example 3 Synthesis of Polysiloxane Solution (A-3) 24.04 g (40 mol%) of dimethyldimethoxysilane, 42.76 g (35 mol%) of diphenyldimethoxysilane, 19.03 g (25 mol%) of tetramethoxysilane, DAA was polymerized in the same manner as in Synthesis Example 1 to obtain a polysiloxane solution (A-3) using 85.57 g of water, 22.53 g of water, and 0.429 g of phosphoric acid.
- the resulting polysiloxane solution (A-3) had a solid content concentration of 37% by weight and a polysiloxane Mw of 3,400.
- Synthesis Example 4 Synthesis of Polysiloxane Solution (A-4) 24.04 g (40 mol%) of dimethyldimethoxysilane, 6.11 g (5 mol%) of diphenyldimethoxysilane, 11.42 g (15 mol%) of tetramethoxysilane, phenyl Using 39.66 g (40 mol%) of trimethoxysilane, 75.21 g of DAA, 24.33 g of water, and 0.406 g of phosphoric acid, polymerization was performed in the same manner as in Synthesis Example 1, and the polysiloxane solution (A- 4) was obtained.
- the resulting polysiloxane solution (A-4) had a solid content concentration of 38% by weight and a polysiloxane Mw of 3,700.
- Synthesis Example 5 Synthesis of Polysiloxane Solution (A-5) 18.03 g (30 mol%) of dimethyldimethoxysilane, 7.61 g (10 mol%) of tetramethoxysilane, 59.49 g (60 mol%) of phenyltrimethoxysilane, Polymerization was carried out in the same manner as in Synthesis Example 1 using 79.33 g of DAA, 25.23 g of water and 0.426 g of phosphoric acid to obtain a polysiloxane solution (A-5). The obtained polysiloxane solution (A-5) had a solid content concentration of 38% by weight, and the polysiloxane had an Mw of 3,900.
- Synthesis Example 6 Synthesis of Polysiloxane Solution (A-6) 9.02 g (15 mol%) of dimethyldimethoxysilane, 3.81 g (5 mol%) of tetramethoxysilane, 59.49 g (60 mol%) of phenyltrimethoxysilane, Polymerization was conducted in the same manner as in Synthesis Example 1 using 13.62 g (20 mol%) of methyltrimethoxysilane, 78.81 g of DAA, 26.13 g of water, and 0.430 g of phosphoric acid. -6) was obtained. The resulting polysiloxane solution (A-6) had a solid content concentration of 40% by weight and a polysiloxane Mw of 4,100.
- Synthesis Example 7 Synthesis of Polysiloxane Solution (A-7) 18.03 g (30 mol%) of dimethyldimethoxysilane, 24.44 g (20 mol%) of diphenyldimethoxysilane, 19.03 g (25 mol%) of tetramethoxysilane, phenyl Using 24.79 g (25 mol%) of trimethoxysilane, 81.92 g of DAA, 24.78 g of water, and 0.431 g of phosphoric acid, polymerization was performed in the same manner as in Synthesis Example 1 to obtain a polysiloxane solution (A- 7) was obtained.
- the resulting polysiloxane solution (A-7) had a solid content concentration of 37% by weight and a polysiloxane Mw of 3,600.
- Synthesis Example 8 Synthesis of Polysiloxane Solution (A-8) 18.03 g (30 mol%) of dimethyldimethoxysilane, 11.42 g (15 mol%) of tetramethoxysilane, 54.53 g (55 mol%) of phenyltrimethoxysilane, Polymerization was carried out in the same manner as in Synthesis Example 1 using 76.74 g of DAA, 25.68 g of water, and 0.420 g of phosphoric acid to obtain a polysiloxane solution (A-8). The resulting polysiloxane solution (A-8) had a solid content concentration of 38% by weight, and the polysiloxane had an Mw of 3,800.
- Synthesis Example 9 Synthesis of Polysiloxane Solution (A-9) 6.01 g (10 mol%) of dimethyldimethoxysilane, 3.81 g (5 mol%) of tetramethoxysilane, 59.49 g (60 mol%) of phenyltrimethoxysilane, Using 17.03 g (25 mol%) of methyltrimethoxysilane, 78.54 g of DAA, 26.58 g of water, and 0.432 g of phosphoric acid, polymerization was performed in the same manner as in Synthesis Example 1 to obtain a polysiloxane solution (A -9) was obtained.
- the resulting polysiloxane solution (A-9) had a solid content concentration of 40% by weight and a polysiloxane Mw of 4,200.
- Synthesis Example 10 Synthesis of Polysiloxane Solution (A-10) 18.03 g (30 mol%) of dimethyldimethoxysilane, 36.65 g (30 mol%) of diphenyldimethoxysilane, 30.44 g (40 mol%) of tetramethoxysilane, DAA was polymerized in the same manner as in Synthesis Example 1 to obtain a polysiloxane solution (A-10), using 79.33 g of water, 25.23 g of water, and 0.426 g of phosphoric acid.
- the resulting polysiloxane solution (A-10) had a solid content concentration of 37% by weight and a polysiloxane Mw of 3,600.
- Synthesis Example 11 Synthesis of Polysiloxane Solution (A-11) 18.03 g (30 mol%) of dimethyldimethoxysilane, 15.22 g (20 mol%) of tetramethoxysilane, 49.57 g (50 mol%) of phenyltrimethoxysilane, Polymerization was carried out in the same manner as in Synthesis Example 1 using 74.15 g of DAA, 26.13 g of water, and 0.414 g of phosphoric acid to obtain a polysiloxane solution (A-11). The resulting polysiloxane solution (A-11) had a solid content concentration of 38% by weight and a polysiloxane Mw of 3,900.
- Synthesis Example 12 Synthesis of polysiloxane solution (A-12) 14.58 g of 1,1,3,3-tetramethyl-1,3-dimethoxydisiloxane (30 mol% in terms of Si atom mol ratio) and 24 of diphenyldimethoxysilane .44 g (20 mol%), 19.03 g (25 mol%) of tetramethoxysilane, 24.79 g (25 mol%) of phenyltrimethoxysilane, 81.92 g of DAA, 22.07 g of water, and 0.414 g of phosphoric acid Then, polymerization was conducted in the same manner as in Synthesis Example 1 to obtain a polysiloxane solution (A-12). The resulting polysiloxane solution (A-12) had a solid content concentration of 37% by weight and a polysiloxane Mw of 3,600.
- Synthesis Example 13 Synthesis of Polysiloxane Solution (A-13) 18.03 g (30 mol%) of dimethyldimethoxysilane, 24.44 g (20 mol%) of diphenyldimethoxysilane, and 14.71 g of M silicate 51 (in terms of Si atom mol ratio) 25 mol%), phenyltrimethoxysilane 24.79 g (25 mol%), DAA 81.92 g, water 21.40 g, and phosphoric acid 0.410 g.
- a siloxane solution (A-13) was obtained.
- the resulting polysiloxane solution (A-13) had a solid content concentration of 37% by weight and a polysiloxane Mw of 3,600.
- Synthesis Example 14 Synthesis of Polysiloxane Solution (A-14) 6.01 g (10 mol%) of dimethyldimethoxysilane, 3.81 g (5 mol%) of tetramethoxysilane, 69.40 g (70 mol%) of phenyltrimethoxysilane, Polymerization was carried out in the same manner as in Synthesis Example 1 using 10.22 g (15 mol%) of methyltrimethoxysilane, 83.20 g of DAA, 26.58 g of water, and 0.447 g of phosphoric acid. -14) was obtained. The resulting polysiloxane solution (A-14) had a solid content concentration of 39% by weight and a polysiloxane Mw of 4,000.
- Synthesis Example 15 Synthesis of Polysiloxane Solution (A-15) 27.05 g (45 mol%) of dimethyldimethoxysilane, 6.11 g (5 mol%) of diphenyldimethoxysilane, 19.03 g (25 mol%) of tetramethoxysilane, phenyl Using 24.79 g (25 mol%) of trimethoxysilane, 67.96 g of DAA, 24.78 g of water, and 0.385 g of phosphoric acid, polymerization was performed in the same manner as in Synthesis Example 1 to obtain a polysiloxane solution (A- 15) was obtained.
- the resulting polysiloxane solution (A-15) had a solid content concentration of 37% by weight and a polysiloxane Mw of 3,700.
- Synthesis Example 16 Synthesis of Polysiloxane Solution (A-16) 30.06 g (50 mol%) of dimethyldimethoxysilane, 19.03 g (25 mol%) of tetramethoxysilane, 19.83 g (20 mol%) of phenyltrimethoxysilane, Polymerization was carried out in the same manner as in Synthesis Example 1 using 3.41 g (5 mol%) of methyltrimethoxysilane, 60.98 g of DAA, 24.78 g of water, and 0.362 g of phosphoric acid. -16) was obtained. The resulting polysiloxane solution (A-16) had a solid content concentration of 37% by weight and a polysiloxane Mw of 3,700.
- Synthesis Example 17 Synthesis of Polysiloxane Solution (A-17) 18.03 g (30 mol%) of dimethyldimethoxysilane, 24.44 g (20 mol%) of diphenyldimethoxysilane, 19.03 g (25 mol%) of tetramethoxysilane, 1 Polymerization in the same manner as in Synthesis Example 1 using 62.09 g (25 mol%) of naphthyltrimethoxysilane (50 wt% IPA solution), 91.31 g of DAA, 24.78 g of water, and 0.463 g of phosphoric acid. As a result, a polysiloxane solution (A-17) was obtained. The resulting polysiloxane solution (A-17) had a solid content concentration of 37% by weight, and the polysiloxane had an Mw of 3,500.
- Synthesis Example 18 Synthesis of polysiloxane solution (A-18) In a three-necked flask, 18.03 g (30 mol%) of dimethyldimethoxysilane, 24.44 g (20 mol%) of diphenyldimethoxysilane, and 19.03 g (25 mol%) of tetramethoxysilane ), 19.83 g (20 mol%) of phenyltrimethoxysilane and 76.81 g of DAA were charged. Air was passed through the flask at 0.05 L / min, and the mixed solution was heated to 40 ° C. in an oil bath while stirring.
- the internal temperature of the solution reached 100 ° C., and was then heated and stirred for 1 to 3 hours (the internal temperature was 95 to 105 ° C.).
- the resin solution obtained by heating and stirring for 1 to 3 hours was cooled in an ice bath, and then 2% by weight of an anion exchange resin and a cation exchange resin were added to the resin solution, followed by stirring for 12 hours. After stirring, the anion exchange resin and the cation exchange resin were removed by filtration to obtain a polysiloxane solution (A-18).
- the obtained polysiloxane solution (A-18) had a solid content concentration of 38% by weight, and the polysiloxane had an Mw of 3,700.
- Synthesis Example 19 Synthesis of polysiloxane solution (A-19) 18.03 g (30 mol%) of dimethyldimethoxysilane, 24.44 g (20 mol%) of diphenyldimethoxysilane, 19.03 g (25 mol%) of tetramethoxysilane, phenyl 14.87 g (15 mol%) of trimethoxysilane, 79.88 g of DAA, 25.68 g of water, 0.447 g of phosphoric acid, 8.88 g of DAA, and 13.3-trimethoxysilylpropyl succinic anhydride Using 12 g (10 mol%), polymerization was conducted in the same manner as in Synthesis Example 18 to obtain a polysiloxane solution (A-19). The resulting polysiloxane solution (A-19) had a solid content concentration of 38% by weight, and the polysiloxane had an Mw of 3,600.
- Synthesis Example 20 Synthesis of polysiloxane solution (A-20) In a three-necked flask, 9.02 g (30 mol%) of dimethyldimethoxysilane, 12.22 g (20 mol%) of diphenyldimethoxysilane, and 9.51 g (25 mol%) of tetramethoxysilane ), Phenyltrimethoxysilane (9.91 g, 20 mol%), PL-2L-MA (22.5 wt% MeOH solution) (68.08 g), and DAA (59.08 g) were charged. Air was passed through the flask at 0.05 L / min, and the mixed solution was heated to 40 ° C. in an oil bath while stirring.
- a phosphoric acid aqueous solution in which 0.220 g of phosphoric acid was dissolved in 12.61 g of water was added over 10 minutes.
- the silane compound was hydrolyzed by stirring at 40 ° C. for 30 minutes.
- a solution prepared by dissolving 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride in 6.56 g of DAA was added. Thereafter, the bath temperature was raised to 70 ° C. and stirred for 1 hour, and then the bath temperature was raised to 110 ° C.
- the internal temperature of the solution reached 100 ° C., and was then heated and stirred for 1 to 3 hours (the internal temperature was 95 to 105 ° C.).
- the resin solution obtained by heating and stirring for 1 to 3 hours was cooled in an ice bath, and then 2% by weight of an anion exchange resin and a cation exchange resin were added to the resin solution, followed by stirring for 12 hours. After stirring, the anion exchange resin and cation exchange resin were removed by filtration to obtain a polysiloxane solution (A-20).
- the resulting polysiloxane solution (A-20) had a solid content concentration of 38% by weight and a polysiloxane Mw of 1,200.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 21 Synthesis of Polysiloxane Solution (A-21) 9.02 g (30 mol%) of dimethyldimethoxysilane, 5.71 g (15 mol%) of tetramethoxysilane, 24.79 g (50 mol%) of phenyltrimethoxysilane, PL-2L-MA (22.5 wt% MeOH solution) 63.94 g, DAA 55.49 g, water 13.06 g, phosphoric acid 0.214 g, DAA 6.17 g, 3-trimethoxysilyl Polymerization was carried out in the same manner as in Synthesis Example 20 using 3.28 g (5 mol%) of propyl succinic anhydride to obtain a polysiloxane solution (A-21).
- the resulting polysiloxane solution (A-21) had a solid content concentration of 39% by weight and a polysiloxane Mw of 1,200.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 22 Synthesis of polysiloxane solution (A-22) 9.02 g (30 mol%) of dimethyldimethoxysilane, 12.22 g (20 mol%) of diphenyldimethoxysilane, 9.51 g (25 mol%) of tetramethoxysilane, 1 Naphthyltrimethoxysilane (50 wt% IPA solution) 24.84 g (20 mol%), methanol silica sol (30.5 wt% MeOH solution) 54.64 g, DAA 64.28 g, water 12.61 g Then, 7.14 g of DAA and 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride were used for polymerization in the same manner as in Synthesis Example 20 to obtain a polysiloxane solution (A-22).
- the resulting polysiloxane solution (A-22) had a solid content concentration of 38% by weight and a polysiloxane Mw of 1,200.
- This polysiloxane is an inorganic particle-containing polysiloxane, and the methanol silica sol is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 23 Synthesis of Polysiloxane Solution (A-23) 14.43 g (30 mol%) of dimethyldimethoxysilane, 19.55 g (20 mol%) of diphenyldimethoxysilane, 15.22 g (25 mol%) of tetramethoxysilane, phenyl 15.86 g (20 mol%) of trimethoxysilane, 22.48 g of PL-2L-MA (22.5 wt% MeOH solution), 68.27 g of DAA, 20.18 g of water, and 0.352 g of phosphoric acid Then, 7.59 g of DAA and 5.25 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride were used for polymerization in the same manner as in Synthesis Example 20 to obtain a polysiloxane solution (A-23).
- the resulting polysiloxane solution (A-23) had a solid content concentration of 39% by weight and a polysiloxane Mw of 1,600.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 10% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 24 Synthesis of Polysiloxane Solution (A-24) 10.82 g (30 mol%) of dimethyldimethoxysilane, 14.66 g (20 mol%) of diphenyldimethoxysilane, 11.42 g (25 mol%) of tetramethoxysilane, phenyl 11.90 g (20 mol%) of trimethoxysilane, 37.93 g of PL-2L-MA (22.5 wt% MeOH solution), 57.60 g of DAA, 15.14 g of water, 0.264 g of phosphoric acid Then, 6.40 g of DAA and 3.93 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride were used for polymerization in the same manner as in Synthesis Example 20 to obtain a polysiloxane solution (A-24).
- the obtained polysiloxane solution (A-24) had a solid content concentration of 38% by weight, and the polysiloxane had an Mw of 1,400.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 20% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 25 Synthesis of Polysiloxane Solution (A-25) 7.21 g (30 mol%) of dimethyldimethoxysilane, 9.77 g (20 mol%) of diphenyldimethoxysilane, 7.61 g (25 mol%) of tetramethoxysilane, phenyl 7.93 g (20 mol%) of trimethoxysilane, 101.14 g of PL-2L-MA (22.5 wt% MeOH solution), 61.44 g of DAA, 10.09 g of water, 0.176 g of phosphoric acid Then, 6.83 g of DAA and 2.62 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride were used for polymerization in the same manner as in Synthesis Example 20 to obtain a polysiloxane solution (A-25).
- the resulting polysiloxane solution (A-25) had a solid content concentration of 37% by weight and a polysiloxane Mw of 1,200.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 50% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 26 Synthesis of polysiloxane solution (A-26) In a three-necked flask, 9.02 g (30 mol%) of dimethyldimethoxysilane, 5.71 g (15 mol%) of tetramethoxysilane, 1-naphthyltrimethoxysilane (50 wt%) IPA solution) 55.88 g (45 mol%), 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane 6.16 g (10 mol%), PL-2L-MA (22.5 wt% MeOH solution) ) Was charged with 79.19 g and DAA with 76.36 g.
- the resin solution obtained by heating and stirring for 1 to 3 hours was cooled in an ice bath, and then 2% by weight of an anion exchange resin and a cation exchange resin were added to the resin solution, followed by stirring for 12 hours. After stirring, the anion exchange resin and the cation exchange resin were removed by filtration to obtain a polysiloxane solution (A-26).
- the resulting polysiloxane solution (A-26) had a solid content concentration of 39% by weight and a polysiloxane Mw of 1,200.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 27 Synthesis of polysiloxane solution (A-27) In a three-necked flask, 18.03 g (30 mol%) of dimethyldimethoxysilane, 24.44 g (20 mol%) of diphenyldimethoxysilane, and 19.03 g (25 mol%) of tetramethoxysilane ), 24.84 g (10 mol%) of 1-naphthyltrimethoxysilane (50 wt% IPA solution), 11.12 g (15 mol%) of vinyltrimethoxysilane, and 80.05 g of DAA. Nitrogen was flowed into the flask at 0.05 L / min, and the mixed solution was heated to 40 ° C.
- the resin solution obtained by heating and stirring for 1 to 3 hours was cooled in an ice bath, and then 2% by weight of an anion exchange resin and a cation exchange resin were added to the resin solution, followed by stirring for 12 hours. After stirring, the anion exchange resin and the cation exchange resin were removed by filtration to obtain a polysiloxane solution (A-27).
- the resulting polysiloxane solution (A-27) had a solid concentration of 40% by weight, Mw of the polysiloxane was 4,700, and a double bond equivalent was 880.
- Synthesis Example 28 Synthesis of polysiloxane solution (A-28) In a three-necked flask, 9.02 g (30 mol%) of dimethyldimethoxysilane, 12.22 g (20 mol%) of diphenyldimethoxysilane, and 9.51 g (25 mol%) of tetramethoxysilane ), 1-naphthyltrimethoxysilane (50 wt% IPA solution) 6.21 g (5 mol%), vinyltrimethoxysilane 5.56 g (15 mol%), PL-2L-MA (22.5 wt% 65.08 g of MeOH solution) and 56.48 g of DAA were charged.
- Nitrogen was flowed into the flask at 0.05 L / min, and the mixed solution was heated to 40 ° C. in an oil bath while stirring. While further stirring the mixed solution, an aqueous phosphoric acid solution in which 0.213 g of phosphoric acid was dissolved in 12.61 g of water was added over 10 minutes. After completion of the addition, the silane compound was hydrolyzed by stirring at 40 ° C. for 30 minutes. After completion of hydrolysis, a solution prepared by dissolving 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride in 6.28 g of DAA was added. Thereafter, the bath temperature was raised to 70 ° C.
- the resin solution obtained by heating and stirring for 1 to 3 hours was cooled in an ice bath, and then 2% by weight of an anion exchange resin and a cation exchange resin were added to the resin solution, followed by stirring for 12 hours. After stirring, the anion exchange resin and the cation exchange resin were removed by filtration to obtain a polysiloxane solution (A-28).
- the resulting polysiloxane solution (A-28) had a solid content concentration of 40% by weight, a polysiloxane Mw of 2,200, a carboxylic acid equivalent of 1330, and a double bond equivalent of 890.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 29 Synthesis of Polysiloxane Solution (A-29) 24.04 g (40 mol%) of dimethyldimethoxysilane, 24.44 g (20 mol%) of diphenyldimethoxysilane, 11.42 g (15 mol%) of tetramethoxysilane, phenyl Using 24.79 g (25 mol%) of trimethoxysilane, 82.98 g of DAA, 22.98 g of water, and 0.423 g of phosphoric acid, polymerization was performed in the same manner as in Synthesis Example 1, and the polysiloxane solution (A- 29) was obtained.
- the resulting polysiloxane solution (A-29) had a solid content concentration of 36% by weight, and the polysiloxane had an Mw of 3,500.
- Synthesis Example 30 Synthesis of Polysiloxane Solution (A-30) 18.03 g (30 mol%) of dimethyldimethoxysilane, 22.83 g (30 mol%) of tetramethoxysilane, 39.66 (40 mol%) of phenyltrimethoxysilane, 68.97 g of DAA, 27.03 g of water, and 0.403 g of phosphoric acid were used for polymerization in the same manner as in Synthesis Example 1 to obtain a polysiloxane solution (A-30).
- the resulting polysiloxane solution (A-30) had a solid content concentration of 38% by weight and a polysiloxane Mw of 4,000.
- Synthesis Example 31 Synthesis of polysiloxane solution (A-31) 1-naphthyltrimethoxysilane (50 wt% IPA solution) 62.09 g (50 mol%), methyltrimethoxysilane 13.62 g (40 mol%), PL -2L-MA (22.5 wt% MeOH solution) 82.87 g, DAA 71.92 g, water 13.97 g, phosphoric acid 0.256 g, DAA 7.9 g, 3-trimethoxysilylpropyl Using 6.56 g (10 mol%) of succinic anhydride, polymerization was carried out in the same manner as in Synthesis Example 20 to obtain a polysiloxane solution (A-31).
- the resulting polysiloxane solution (A-31) had a solid content concentration of 39% by weight and a polysiloxane Mw of 1,300.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 32 Synthesis of Polysiloxane Solution (A-32) 6.01 g (20 mol%) of dimethyldimethoxysilane, 62.09 g (50 mol%) of 1-naphthyltrimethoxysilane (50 wt% IPA solution), methyltrimethoxysilane 8.51 g (25 mol%) of methoxysilane, 79.13 g of PL-2L-MA (22.5 wt% MeOH solution), 68.67 g of DAA, 12.84 g of water, 0.244 g of phosphoric acid, Using 7.63 g of DAA and 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride, polymerization was carried out in the same manner as in Synthesis Example 20 to obtain a polysiloxane solution (A-32).
- the resulting polysiloxane solution (A-32) had a solid content concentration of 38% by weight, and the polysiloxane had a Mw of 1,300.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 33 Synthesis of polysiloxane solution (A-33) In a three-necked flask, 3.01 g (10 mol%) of dimethyldimethoxysilane, 1.90 g (5 mol%) of tetramethoxysilane, 6.81 g (20 mol) of methyltrimethoxysilane %), 29.74 g (60 mol%) of phenyltrimethoxysilane, 67.24 g of PL-2L-MA (22.5 wt% MeOH solution), and 58.35 g of DAA. Air was passed through the flask at 0.10 L / min, and the mixed solution was heated to 40 ° C. in an oil bath while stirring.
- a phosphoric acid aqueous solution in which 0.447 g of phosphoric acid was dissolved in 13.52 g of water was added over 10 minutes.
- the silane compound was hydrolyzed by stirring at 40 ° C. for 30 minutes.
- a solution prepared by dissolving 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride in 6.48 g of DAA was added. Thereafter, the bath temperature was raised to 70 ° C. and stirred for 1 hour, and then the bath temperature was raised to 110 ° C.
- the internal temperature of the solution reached 100 ° C., and was then heated and stirred for 1 to 3 hours (the internal temperature was 95 to 105 ° C.).
- the resin solution obtained by heating and stirring for 1 to 3 hours was cooled in an ice bath, and then 2% by weight of an anion exchange resin and a cation exchange resin were added to the resin solution, followed by stirring for 12 hours. After stirring, the anion exchange resin and the cation exchange resin were removed by filtration to obtain a polysiloxane solution (A-33).
- the resulting polysiloxane solution (A-33) had a solid content concentration of 38% by weight, and the polysiloxane had an Mw of 1,400.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 34 Synthesis of Polysiloxane Solution (A-34) 3.01 g (10 mol%) of dimethyldimethoxysilane, 1.90 g (5 mol%) of tetramethoxysilane, 6.81 g (20 mol%) of methyltrimethoxysilane, 29.74 g (60 mol%) of phenyltrimethoxysilane, 72.04 g of PL-3-PGME (21.0 wt% PGME solution), 58.35 g of DAA, 13.52 g of water, and 0.30 g of phosphoric acid.
- polysiloxane solution (A-34) was obtained Using 447 g, 6.48 g of DAA, and 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride, polymerization was performed in the same manner as in Synthesis Example 33 to obtain a polysiloxane solution (A-34). It was.
- the resulting polysiloxane solution (A-34) had a solid content concentration of 40% by weight and a polysiloxane Mw of 1,400.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-3-PGME is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 35 Synthesis of polysiloxane solution (A-35) 3.01 g (10 mol%) of dimethyldimethoxysilane, 1.90 g (5 mol%) of tetramethoxysilane, 6.81 g (20 mol%) of methyltrimethoxysilane, 29.74 g (60 mol%) of phenyltrimethoxysilane, 37.35 g of MA-ST-L (40.5 wt% MeOH solution), 58.35 g of DAA, 13.52 g of water, and 0.35 g of phosphoric acid.
- polysiloxane solution (A-35) was obtained Using 447 g, 6.48 g of DAA, and 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride, polymerization was performed in the same manner as in Synthesis Example 33 to obtain a polysiloxane solution (A-35). It was.
- the resulting polysiloxane solution (A-35) had a solid content concentration of 40% by weight and a polysiloxane Mw of 1,400.
- This polysiloxane is an inorganic particle-containing polysiloxane, and MA-ST-L is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 36 Synthesis of polysiloxane solution (A-36) 3.01 g (10 mol%) of dimethyldimethoxysilane, 1.90 g (5 mol%) of tetramethoxysilane, 6.81 g (20 mol%) of methyltrimethoxysilane, 29.74 g (60 mol%) of phenyltrimethoxysilane, 133.79 g of PL-3-PGME (21.0 wt% PGME solution), 75.86 g of DAA, 13.52 g of water, and 0.70 g of phosphoric acid.
- polysiloxane solution (A-36) was obtained Using 447 g, 8.43 g of DAA, and 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride, polymerization was performed in the same manner as in Synthesis Example 33 to obtain a polysiloxane solution (A-36). It was.
- the resulting polysiloxane solution (A-36) had a solid content concentration of 44% by weight and a polysiloxane Mw of 1,200.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-3-PGME is contained in an amount of 50% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 37 Synthesis of Polysiloxane Solution (A-37) 9.02 g (30 mol%) of dimethyldimethoxysilane, 6.11 g (10 mol%) of diphenylmethoxysilane, 7.61 g (20 mol%) of tetramethoxysilane, phenyl 17.35 g (35 mol%) of trimethoxysilane, 66.01 g of PL-2L-MA (22.5 wt% MeOH solution), 57.29 g of DAA, 12.84 g of water, and 0.434 g of phosphoric acid Then, 6.37 g of DAA and 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride were used for polymerization in the same manner as in Synthesis Example 33 to obtain a polysiloxane solution (A-37).
- the resulting polysiloxane solution (A-37) had a solid content concentration of 40% by weight, and the polysiloxane Mw was 1,500.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 38 Synthesis of Polysiloxane Solution (A-38) 9.02 g (30 mol%) of dimethyldimethoxysilane, 6.11 g (10 mol%) of diphenylmethoxysilane, 7.61 g (20 mol%) of tetramethoxysilane, phenyl 17.35 g (35 mol%) of trimethoxysilane, 70.73 g of PL-3-PGME (21.0 wt% PGME solution), 57.29 g of DAA, 12.84 g of water, and 0.434 g of phosphoric acid Then, 6.37 g of DAA and 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride were used for polymerization in the same manner as in Synthesis Example 33 to obtain a polysiloxane solution (A-38).
- the resulting polysiloxane solution (A-38) had a solid content concentration of 40% by weight, and the polysiloxane had an Mw of 1,500.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-3-PGME is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 39 Synthesis of polysiloxane solution (A-39) 9.02 g (30 mol%) of dimethyldimethoxysilane, 6.11 g (10 mol%) of diphenylmethoxysilane, 7.61 g (20 mol%) of tetramethoxysilane, phenyl 17.35 g (35 mol%) of trimethoxysilane, 131.35 g of PL-3-PGME (21.0 wt% PGME solution), 74.47 g of DAA, 12.84 g of water, and 0.434 g of phosphoric acid Then, 8.27 g of DAA and 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride were used for polymerization in the same manner as in Synthesis Example 33 to obtain a polysiloxane solution (A-39).
- the resulting polysiloxane solution (A-39) had a solid content concentration of 42% by weight and a polysiloxane Mw of 1,400.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-3-PGME is contained in an amount of 50% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 40 Synthesis of Polysiloxane Solution (A-40) 3.01 g (10 mol%) of dimethyldimethoxysilane, 1.90 g (5 mol%) of tetramethoxysilane, 10.22 g (30 mol%) of methyltrimethoxysilane, 62.09 g (50 mol%) of 1-naphthyltrimethoxysilane (50 wt% IPA solution), 78.50 g of PL-2L-MA (22.5 wt% MeOH solution), 68.12 g of DAA, water 1352 g, phosphoric acid 0.247 g, DAA 7.57 g, 3-trimethoxysilylpropyl succinic anhydride 3.28 g (5 mol%) were used for polymerization in the same manner as in Synthesis Example 33.
- a polysiloxane solution (A-40) was obtained.
- the resulting polysiloxane solution (A-40) had a solid content of 39% by weight and a polysiloxane Mw of 1,300.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 41 Synthesis of Polysiloxane Solution (A-41) 3.01 g (10 mol%) of dimethyldimethoxysilane, 1.90 g (5 mol%) of tetramethoxysilane, 10.22 g (30 mol%) of methyltrimethoxysilane, 1-naphthyltrimethoxysilane (50 wt% IPA solution) 62.09 g (50 mol%), PL-3-PGME (21.0 wt% PGME solution) 84.10 g, DAA 68.12 g, water 1352 g, phosphoric acid 0.247 g, DAA 7.57 g, 3-trimethoxysilylpropyl succinic anhydride 3.28 g (5 mol%) were used for polymerization in the same manner as in Synthesis Example 33.
- a polysiloxane solution (A-41) was obtained.
- the resulting polysiloxane solution (A-41) had a solid content concentration of 40% by weight and a polysiloxane Mw of 1,300.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-3-PGME is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 42 Synthesis of Polysiloxane Solution (A-42) 3.01 g (10 mol%) of dimethyldimethoxysilane, 1.90 g (5 mol%) of tetramethoxysilane, 10.22 g (30 mol%) of methyltrimethoxysilane, 1-naphthyltrimethoxysilane (50 wt% IPA solution) 62.09 g (50 mol%), MA-ST-L (40.5 wt% MeOH solution) 43.61 g, DAA 68.12 g, water 1352 g, phosphoric acid 0.247 g, DAA 7.57 g, 3-trimethoxysilylpropyl succinic anhydride 3.28 g (5 mol%) were used for polymerization in the same manner as in Synthesis Example 33.
- a polysiloxane solution (A-42) was obtained.
- the resulting polysiloxane solution (A-42) had a solid content concentration of 40% by weight, and the polysiloxane had a Mw of 1,300.
- This polysiloxane is an inorganic particle-containing polysiloxane, and MA-ST-L is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 43 Synthesis of Polysiloxane Solution (A-43) 3.01 g (10 mol%) of dimethyldimethoxysilane, 1.90 g (5 mol%) of tetramethoxysilane, 10.22 g (30 mol%) of methyltrimethoxysilane, 1-naphthyltrimethoxysilane (50 wt% IPA solution) 62.09 g (50 mol%), PL-3-PGME (21.0 wt% PGME solution) 52.06 g, DAA 59.04 g, water was used in the same manner as in Synthesis Example 33, using 13.52 g of phosphoric acid, 0.247 g of phosphoric acid, 6.56 g of DAA, and 3.28 g (5 mol%) of 3-trimethoxysilylpropyl succinic anhydride.
- a polysiloxane solution (A-43) was obtained.
- the resulting polysiloxane solution (A-43) had a solid content concentration of 38% by weight, and the polysiloxane had a Mw of 1,600.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-3-PGME is contained in an amount of 25% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 44 Synthesis of Polysiloxane Solution (A-44) 3.01 g (10 mol%) of dimethyldimethoxysilane, 1.90 g (5 mol%) of tetramethoxysilane, 10.22 g (30 mol%) of methyltrimethoxysilane, 1-naphthyltrimethoxysilane (50 wt% IPA solution) 62.09 g (50 mol%), PL-3-PGME (21.0 wt% PGME solution) 156.19 g, DAA 88.56 g, water 135.2 g, phosphoric acid 0.247 g, DAA 9.84 g, 3-trimethoxysilylpropyl succinic anhydride 3.28 g (5 mol%) were used and polymerized in the same manner as in Synthesis Example 33.
- a polysiloxane solution (A-44) was obtained.
- the resulting polysiloxane solution (A-44) had a solid content concentration of 42% by weight and a polysiloxane Mw of 1,200.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-3-PGME is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 45 Synthesis of polysiloxane solution (A-45) 9.02 g (30 mol%) of dimethyldimethoxysilane, 6.11 g (10 mol%) of diphenylmethoxysilane, 7.61 g (20 mol%) of tetramethoxysilane, 1 Naphthyltrimethoxysilane (50 wt% IPA solution) 43.46 g (35 mol%), PL-2L-MA (22.5 wt% MeOH solution) 76.49 g, DAA 66.38 g, water Using 12.84 g, phosphoric acid 0.239 g, DAA 7.38 g, 3-trimethoxysilylpropyl succinic anhydride 3.28 g (5 mol%), polymerization was conducted in the same manner as in Synthesis Example 33, A siloxane solution (A-45) was obtained.
- the resulting polysiloxane solution (A-45) had a solid content concentration of 40% by weight and a polysiloxane Mw of 1,500.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-2L-MA is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 46 Synthesis of polysiloxane solution (A-46) 9.02 g (30 mol%) of dimethyldimethoxysilane, 6.11 g (10 mol%) of diphenylmethoxysilane, 7.61 g (20 mol%) of tetramethoxysilane, 1 -Naphtyltrimethoxysilane (50 wt% IPA solution) 43.46 g (35 mol%), PL-3-PGME (21.0 wt% PGME solution) 81.96 g, DAA 66.38 g, water Using 12.84 g, phosphoric acid 0.239 g, DAA 7.38 g, 3-trimethoxysilylpropyl succinic anhydride 3.28 g (5 mol%), polymerization was conducted in the same manner as in Synthesis Example 33, A siloxane solution (A-46) was obtained.
- the resulting polysiloxane solution (A-46) had a solid content concentration of 41% by weight and a polysiloxane Mw of 1,500.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-3-PGME is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 47 Synthesis of Polysiloxane Solution (A-47) 9.02 g (30 mol%) of dimethyldimethoxysilane, 6.11 g (10 mol%) of diphenylmethoxysilane, 7.61 g (20 mol%) of tetramethoxysilane, 1 Naphthyltrimethoxysilane (50 wt% IPA solution) 43.46 g (35 mol%), MA-ST-L (40.5 wt% MeOH solution) 42.50 g, DAA 66.38 g, water Using 12.84 g, phosphoric acid 0.239 g, DAA 7.38 g, 3-trimethoxysilylpropyl succinic anhydride 3.28 g (5 mol%), polymerization was conducted in the same manner as in Synthesis Example 33, A siloxane solution (A-47) was obtained.
- the resulting polysiloxane solution (A-47) had a solid content concentration of 41% by weight and a polysiloxane Mw of 1,500.
- This polysiloxane is an inorganic particle-containing polysiloxane, and MA-ST-L is contained in an amount of 35% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 48 Synthesis of Polysiloxane Solution (A-48) 9.02 g (30 mol%) of dimethyldimethoxysilane, 6.11 g (10 mol%) of diphenylmethoxysilane, 7.61 g (20 mol%) of tetramethoxysilane, 1 -Naphtyltrimethoxysilane (50 wt% IPA solution) 43.46 g (35 mol%), PL-3-PGME (21.0 wt% PGME solution) 50.74 g, DAA 57.53 g, water Using 12.84 g, phosphoric acid 0.239 g, DAA 6.39 g and 3-trimethoxysilylpropyl succinic anhydride 3.28 g (5 mol%), polymerization was conducted in the same manner as in Synthesis Example 33, A siloxane solution (A-48) was obtained.
- the resulting polysiloxane solution (A-48) had a solid content concentration of 39% by weight and a polysiloxane Mw of 1,800.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-3-PGME is contained in an amount of 25% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 49 Synthesis of Polysiloxane Solution (A-49) 9.02 g (30 mol%) of dimethyldimethoxysilane, 6.11 g (10 mol%) of diphenylmethoxysilane, 7.61 g (20 mol%) of tetramethoxysilane, 1 -Naphtyltrimethoxysilane (50 wt% IPA solution) 43.46 g (35 mol%), PL-3-PGME (21.0 wt% PGME solution) 152.21 g, DAA 86.30 g, water Using 12.84 g, phosphoric acid 0.239 g, DAA 9.59 g, 3-trimethoxysilylpropyl succinic anhydride 3.28 g (5 mol%), polymerization was conducted in the same manner as in Synthesis Example 33, A siloxane solution (A-49) was obtained.
- the resulting polysiloxane solution (A-49) had a solid content concentration of 41% by weight and a polysiloxane Mw of 1,400.
- This polysiloxane is an inorganic particle-containing polysiloxane, and PL-3-PGME is contained in an amount of 50% by weight based on the weight of the inorganic particle-containing polysiloxane.
- Synthesis Example 50 Synthesis of Compound (QD-1) Having Naphthoquinone Diazide Structure Under a dry nitrogen stream, 15.32 g (0.05 mol) of Ph-cc-AP and 37.62 g of 5-naphthoquinone diazide sulfonic acid chloride were placed in a flask ( 0.14 mol) was weighed and dissolved in 450 g of 1,4-dioxane and brought to room temperature. A mixed solution of 50 g of 1,4-dioxane and 15.58 g (0.154 mol) of triethylamine was added dropwise with stirring so that the temperature in the system did not exceed 35 ° C.
- Synthesis Example 52 Synthesis of Acrylic Resin (AC-2) A flask was charged with 0.821 g (1 mol%) of AIBN and 27.11 g of PGMEA. Next, 5.01 g (10 mol%) of methyl methacrylate, 17.22 g (40 mol%) of methacrylic acid and 32.54 g (50 mol%) of 2-hydroxyethyl methacrylate were charged and stirred at room temperature for a while. The inside was sufficiently purged with nitrogen by bubbling, and then heated and stirred at 70 ° C. for 5 hours.
- Apparatus Nuclear magnetic resonance apparatus (JNM-GX270; manufactured by JEOL Ltd.) Measurement method: gated decoupling method Measurement nuclear frequency: 53.6669 MHz ( 29 Si nucleus) Spectrum width: 20000Hz Pulse width: 12 ⁇ s (45 ° pulse) Pulse repetition time: 30.0 seconds Solvent: Acetone-d6 Reference substance: Tetramethylsilane Measurement temperature: 23 ° C Sample rotation speed: 0.0 Hz.
- Eth sensitivity (limit exposure) A gray scale mask (MDRM MODEL 4000-5-FS; Opto) for sensitivity measurement using a double-sided alignment single-side exposure apparatus (Mask Aligner PEM-6M; manufactured by Union Optics Co., Ltd.) according to the method described in Example 1 below.
- a gray scale mask (MDRM MODEL 4000-5-FS; Opto) for sensitivity measurement using a double-sided alignment single-side exposure apparatus (Mask Aligner PEM-6M; manufactured by Union Optics Co., Ltd.) according to the method described in Example 1 below.
- i-line wavelength 365 nm
- h-line wavelength 405 nm
- g-line wavelength 436 nm
- AD-2000 small photolithographic developing device
- the film was developed using Sangyo Co., Ltd., and a film after development of the composition was produced.
- Eop sensitivity (optimal exposure) Exposure and development were performed by the method described in (9) above to produce a post-development film of the composition. Using a FPD inspection microscope (MX-61L; manufactured by Olympus Corporation) and a field emission scanning electron microscope (S-4800; manufactured by Hitachi High-Technologies Corporation), the resolution pattern of the prepared cured film was observed. The exposure amount (i-line illuminometer value) for forming a line-and-space pattern having a minimum pattern size with no residue and a width of 1: 1 was defined as Eop sensitivity.
- thermosetting condition is that the oven is purged with nitrogen under a nitrogen stream at 50 ° C. for 30 minutes, then the temperature is raised to 450 ° C. at a temperature rising rate of 10 ° C./min, and heat cured at 450 ° C. for 30 minutes.
- a cured film of the composition was prepared.
- FIG. 5 shows an SEM photograph of the 2 ⁇ m dot pattern obtained in Example 22 shown in Table 5-1.
- FIG. 6 shows an SEM photograph of the 1 ⁇ m line and space pattern obtained in Example 63 described in Table 9-1.
- Pattern dimension width change Exposure tolerance
- Patterning exposure is performed using a reduction projection type exposure apparatus (i-line stepper NSR-2005i9C; manufactured by Nikon Corporation) by the method described in Example 1 below, and a small photolithographic developing apparatus (AD-2000; Takizawa Sangyo Co., Ltd.) )) To develop a film after development of the composition.
- a reduction projection type exposure apparatus i-line stepper NSR-2005i9C; manufactured by Nikon Corporation
- AD-2000 Takizawa Sangyo Co., Ltd.
- S-4800 field emission scanning electron microscope
- Pattern dimension width change (B) ⁇ (A).
- Heat resistance 1% weight loss temperature
- a cured film of the composition was produced on a Cr substrate by the method described in Example 1 below.
- the produced cured film was scraped from the substrate, and about 10 mg was put in an aluminum cell.
- This aluminum cell was held in a nitrogen atmosphere at 30 ° C. for 10 minutes using a thermogravimetric measuring apparatus (TGA-50; manufactured by Shimadzu Corporation), and then heated to 800 ° C. at a temperature rising rate of 10 ° C./min.
- the thermogravimetric analysis was performed.
- the 1% weight reduction temperature (Td1%) at which the weight loss becomes 1% was measured, and the respective temperatures Td1% were compared. Higher Td1% indicates better heat resistance.
- Example 2 Ion implantation Using the high temperature inert gas oven (INH-9CD-S; manufactured by Koyo Thermo System Co., Ltd.) by the method described in Example 1 below, the following (16 The cured film of the composition was produced with the same film thickness as the crack-resistant film thickness at the time of ion implantation. A cured film of the composition was prepared at a thermosetting temperature of 450 ° C. After heat curing, ion implantation was performed on the substrate on which the cured film was produced using an ion implantation apparatus (MODEL 2100 Ion Implanter; manufactured by Veeco) under the following conditions.
- MODEL 2100 Ion Implanter manufactured by Veeco
- Ion species Al Ion implantation temperature: 400 ° C Acceleration energy amount: 300 keV Ion dose: 1.0E + 14ions / cm 2 Vacuum degree: 2.0E-6 Torr.
- the maximum film thickness value of the cured film in which no crack was generated was defined as the crack-resistant film thickness during ion implantation (hereinafter referred to as “ion-implanted crack-resistant film thickness”), and the respective ion-implanted crack-resistant film thicknesses were compared.
- An ion-implanted crack-resistant film thickness of 1.0 ⁇ m or more was regarded as acceptable.
- An ion-implanted crack-resistant film thickness of 1.65 ⁇ m or more is excellent as an ion implantation mask resist.
- a cured film of the composition was produced by the method described in Example 1 below using a high-temperature inert gas oven (INH-9CD-S; manufactured by Koyo Thermo System Co., Ltd.). .
- a cured film of the composition was prepared at a thermosetting temperature of 450 ° C. After thermosetting, ion implantation was performed on the substrate on which the cured film was produced using an ion implantation apparatus (MODEL 2100 Ion Implanter; manufactured by Veeco) under the same conditions as in (15) above.
- Dopant PH 3 Dopant exposure temperature: 800 ° C Dopant exposure time: 30 minutes.
- RF power 300W Etching temperature: 200 ° C Etching time: 30 seconds
- Processing pressure 20 Pa
- Gas flow rate 50 sccm.
- Etching solution phosphoric acid Etching temperature: 100 ° C Etching time: 300 seconds
- Treatment chemical 20 wt% hydrofluoric acid
- Treatment temperature 23 ° C
- Treatment time 300 seconds
- Rinse solution water Rinse time: 120 seconds.
- the substrate surface was observed using an FPD inspection microscope (MX-61L; manufactured by Olympus Corporation) and a field emission scanning electron microscope (S-4800; manufactured by Hitachi High-Technologies Corporation), and the remaining film of the cured film was observed. Or the presence or absence of the residue was confirmed.
- FPD inspection microscope MX-61L; manufactured by Olympus Corporation
- S-4800 field emission scanning electron microscope
- Example 1 Under a yellow light, 0.333 g of PAI-101 was weighed, 0.823 g of DAA and 6.300 g of PGMEA were added, and dissolved by stirring. Next, 17.544 g of the polysiloxane solution (A-1) obtained in Synthesis Example 1 was added and stirred to obtain a uniform solution. Then, the obtained solution was filtered with a 0.2 micrometer filter, and the composition 1 was prepared.
- the prepared composition 1 was applied onto a 4H-SiC wafer by spin coating at an arbitrary rotation number using a spin coater (MS-A100; manufactured by Mikasa Co., Ltd.), and then a hot plate (SCW-636; Dainippon Was used for pre-baking at 95 ° C. for 195 seconds to produce a pre-baked film having a film thickness of about 1.9 ⁇ m.
- MS-A100 manufactured by Mikasa Co., Ltd.
- SCW-636 Dainippon Was used for pre-baking at 95 ° C. for 195 seconds
- the prepared pre-baked film was subjected to a gray scale mask (MDRM MODEL 4000-5-FS; Opto-Line International).
- MDRM MODEL 4000-5-FS gray scale mask
- i-line wavelength 365 nm
- h-line wavelength 405 nm
- g-line wavelength 436 nm
- AD-2000 small photolithographic developing device
- the film was developed with NMD-W for 90 seconds and rinsed with water for 30 seconds.
- the prepared pre-baked film was subjected to patterning exposure using a reduction projection type exposure apparatus (i-line stepper NSR-2005i9C; manufactured by Nikon Corporation). After the exposure, using a small photolithographic developing device (AD-2000; manufactured by Takizawa Sangyo Co., Ltd.), the film was developed with NMD-W for 90 seconds and rinsed with water for 30 seconds.
- a reduction projection type exposure apparatus i-line stepper NSR-2005i9C; manufactured by Nikon Corporation.
- AD-2000 small photolithographic developing device
- the film was developed with NMD-W for 90 seconds and rinsed with water for 30 seconds.
- thermosetting conditions were maintained at 50 ° C. for 30 minutes under a nitrogen stream, and the inside of the oven was purged with nitrogen, then heated to 450 ° C. at a temperature increase rate of 10 ° C./min, and heat cured at 450 ° C. for 30 minutes. .
- the substrate on which the cured film was prepared was subjected to one or more treatments selected from the group consisting of ion implantation, dopant exposure, dry etching, and wet etching.
- Al as an ion species was implanted at an ion implantation temperature of 400 ° C. into the substrate on which the cured film was produced.
- the substrate on which the cured film was prepared was exposed to PH 3 as a dopant at a dopant exposure temperature of 800 ° C.
- the substrate on which the cured film was produced was treated at an etching temperature of 100 ° C. using phosphoric acid as an etchant.
- Firing conditions were as follows: air temperature was increased from 23 ° C. to 1,000 ° C. at a heating rate of 10 ° C./min, and firing was performed at 1,000 minutes for 30 minutes. Subsequently, the film was immersed in 20 wt% hydrofluoric acid for 300 seconds at 23 ° C., and then rinsed with water for 120 seconds to remove the cured film of the composition.
- the substrate surface was observed using an FPD inspection microscope (MX-61L; Olympus Corporation) and a field emission scanning electron microscope (S-4800; Hitachi High-Technologies Corporation), and the remaining film of the cured film was observed. The presence or absence of residue was confirmed.
- FPD inspection microscope MX-61L; Olympus Corporation
- S-4800 field emission scanning electron microscope
- compositions 2 to 91 were prepared with the compositions described in Tables 4-1 to 11-1. Using each of the obtained compositions, a composition was formed on a substrate in the same manner as in Example 1, and the photosensitive characteristics and the characteristics of the cured film were evaluated. The evaluation results are collectively shown in Tables 4-2 to 11-2.
- Example 92 Under a yellow light, 0.578 g of the compound (QD-1) having a naphthoquinonediazide structure obtained in Synthesis Example 50 was weighed, 1.932 g of DAA and 7.200 g of PGMEA were added, and the mixture was stirred and dissolved. Next, 15.291 g of the polysiloxane solution (A-44) obtained in Synthesis Example 44 was added and stirred to obtain a uniform solution. Thereafter, the obtained solution was filtered through a 0.2 ⁇ m filter to prepare a composition 70.
- the prepared composition 70 was applied onto a 4H-SiC wafer by spin coating at an arbitrary rotation number using a spin coater (MS-A100; manufactured by Mikasa Co., Ltd.), and then a hot plate (SCW-636; Dainippon Was used for pre-baking at 95 ° C. for 195 seconds to prepare a pre-baked film having a film thickness of about 2.1 ⁇ m.
- MS-A100 manufactured by Mikasa Co., Ltd.
- SCW-636 Dainippon Was used for pre-baking at 95 ° C. for 195 seconds
- the prepared pre-baked film was subjected to a gray scale mask (MDRM MODEL 4000-5-FS; Opto-Line International).
- MDRM MODEL 4000-5-FS gray scale mask
- i-line wavelength 365 nm
- h-line wavelength 405 nm
- g-line wavelength 436 nm
- AD-2000 small photolithographic developing device
- the film was developed with NMD-W for 90 seconds and rinsed with water for 30 seconds.
- the prepared pre-baked film was subjected to patterning exposure using a reduction projection type exposure apparatus (i-line stepper NSR-2005i9C; manufactured by Nikon Corporation). After the exposure, using a small photolithographic developing device (AD-2000; manufactured by Takizawa Sangyo Co., Ltd.), the film was developed with NMD-W for 90 seconds and rinsed with water for 30 seconds.
- a reduction projection type exposure apparatus i-line stepper NSR-2005i9C; manufactured by Nikon Corporation.
- AD-2000 small photolithographic developing device
- the film was developed with NMD-W for 90 seconds and rinsed with water for 30 seconds.
- the substrate on which the cured film was prepared was subjected to one or more treatments selected from the group consisting of ion implantation, dopant exposure, dry etching, and wet etching.
- Al was implanted as an ion species at an ion implantation temperature of 500 ° C. into the substrate on which the cured film was produced.
- the substrate on which the cured film was prepared was exposed to PH 3 as a dopant at a dopant exposure temperature of 800 ° C.
- the substrate on which the cured film was produced was treated at an etching temperature of 100 ° C. using phosphoric acid as an etchant.
- the film was immersed in 20% by weight hydrofluoric acid at 23 ° C. for 300 seconds and rinsed with water for 120 seconds to remove the cured film of the composition.
- the substrate surface was observed using an FPD inspection microscope (MX-61L; Olympus Corporation) and a field emission scanning electron microscope (S-4800; Hitachi High-Technologies Corporation), and the remaining film of the cured film was observed. The presence or absence of residue was confirmed.
- FPD inspection microscope MX-61L; Olympus Corporation
- S-4800 field emission scanning electron microscope
- Example 93 to 97 and Comparative Example 5 Similar to Example 1, Composition 70 was prepared with the composition described in Table 12-1. Using the composition 70 thus obtained, a composition was formed on a substrate in the same manner as in Example 92, and the photosensitive characteristics and the characteristics of the cured film were evaluated. The evaluation results are summarized in Table 12-2.
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Abstract
Description
(A)ポリシロキサン、を含有する感光性樹脂組成物であり、
前記(A)ポリシロキサンが、一般式(1)で表されるポリシロキサンであり、
前記(A)ポリシロキサンに占める、一般式(2)で表されるオルガノシラン単位の含有比率が、Si原子mol比で(X)mol%、及び一般式(3)で表されるオルガノシラン単位の含有比率が、Si原子mol比で(Y)mol%であり、
(一般式(3)において、R7及びR8は、それぞれ独立して、水素、アルキル基、アシル基、アリール基、ポリシロキサンのポリマー鎖又は一般式(7)で表される置換基を表す。)
(X)及び(Y)が、式(4)~(6)を満たすことを特徴とする、感光性樹脂組成物である。
2.5≦(Y)≦40 (5)
1.5×(Y)≦(X)≦3×(Y) (6)
2.5≦(Y)≦40 (5)
1.5×(Y)≦(X)≦3×(Y) (6)
本発明の感光性樹脂組成物は、(A)ポリシロキサンを含有する。(A)ポリシロキサンは熱硬化性樹脂であり、高温で熱硬化させて脱水縮合させることで高耐熱性のシロキサン結合(Si-O)が形成される。従って、高耐熱性のシロキサン結合を有する(A)ポリシロキサンを樹脂組成物に含有させることで、得られる硬化膜の耐熱性、耐クラック性を向上させることができる。そのため、硬化膜をイオン注入マスク、ドーパント暴露マスク、ドライエッチングマスク又はウェットエッチングマスクとして用いる場合などに好適である。
2.5≦(Y)≦40 (5)
1.5×(Y)≦(X)≦3×(Y) (6)
一般式(21)において、R53及びR54は、それぞれ独立して、水素、炭素数1~10のアルキル基、炭素数4~10のシクロアルキル基、炭素数2~10のアルケニル基又は炭素数6~15のアリール基が好ましく、水素、炭素数1~6のアルキル基、炭素数4~7のシクロアルキル基、炭素数2~8のアルケニル基又は炭素数6~10のアリール基がより好ましい。また、R55及びR56は、それぞれ独立して、水素、炭素数1~6のアルキル基、炭素数2~6のアシル基又は炭素数6~15のアリール基が好ましく、水素、炭素数1~4のアルキル基、炭素数2~4のアシル基又は炭素数6~10のアリール基がより好ましい。
アルカリ現像液でのパターン加工性向上、現像後の残渣発生の抑制及び現像後の解像度向上の観点から、2-(3-トリメトキシシリルプロピル)-4-(N-t-ブチル)アミノ-4-オキソブタン酸、2-(3-トリエトキシシリルプロピル)-4-(N-t-ブチル)アミノ-4-オキソブタン酸、3-(3-トリメトキシシリルプロピル)-4-(N-t-ブチル)アミノ-4-オキソブタン酸、3-(3-トリエトキシシリルプロピル)-4-(N-t-ブチル)アミノ-4-オキソブタン酸、3-トリメトキシシリルプロピルコハク酸、3-トリエトキシシリルプロピルコハク酸、3-トリメトキシシリルプロピオン酸、3-トリエトキシシリルプロピオン酸、4-トリメトキシシリル酪酸、4-トリエトキシシリル酪酸、5-トリメトキシシリル吉草酸、5-トリエトキシシリル吉草酸、3-トリメトキシシリルプロピルコハク酸無水物、3-トリエトキシシリルプロピルコハク酸無水物、4-(3-トリメトキシシリルプロピル)シクロヘキサン-1,2-ジカルボン酸無水物、4-(3-トリエトキシシリルプロピル)シクロヘキサン-1,2-ジカルボン酸無水物、4-(3-トリメトキシシリルプロピル)フタル酸無水物若しくは4-(3-トリエトキシシリルプロピル)フタル酸無水物などの三官能シラン又は3-ジメチルメトキシシリルプロピオン酸、3-ジメチルエトキシシリルプロピオン酸、4-ジメチルメトキシシリル酪酸、4-ジメチルエトキシシリル酪酸、5-ジメチルメトキシシリル吉草酸、5-ジメチルエトキシシリル吉草酸、3-ジメチルメトキシシリルプロピルコハク酸無水物、3-ジメチルエトキシシリルプロピルコハク酸無水物、4-(3-ジメチルメトキシシリルプロピル)シクロヘキサン-1,2-ジカルボン酸無水物、4-(3-ジメチルエトキシシリルプロピル)シクロヘキサン-1,2-ジカルボン酸無水物、4-(3-ジメチルメトキシシリルプロピル)フタル酸無水物若しくは4-(3-ジメチルエトキシシリルプロピル)フタル酸無水物などの一官能シランが好ましく、2-(3-トリメトキシシリルプロピル)-4-(N-t-ブチル)アミノ-4-オキソブタン酸、2-(3-トリエトキシシリルプロピル)-4-(N-t-ブチル)アミノ-4-オキソブタン酸、3-(3-トリメトキシシリルプロピル)-4-(N-t-ブチル)アミノ-4-オキソブタン酸、3-(3-トリエトキシシリルプロピル)-4-(N-t-ブチル)アミノ-4-オキソブタン酸、3-トリメトキシシリルプロピルコハク酸、3-トリエトキシシリルプロピルコハク酸、3-トリメトキシシリルプロピオン酸、3-トリエトキシシリルプロピオン酸、4-トリメトキシシリル酪酸、4-トリエトキシシリル酪酸、3-トリメトキシシリルプロピルコハク酸無水物、3-トリエトキシシリルプロピルコハク酸無水物、4-(3-トリメトキシシリルプロピル)シクロヘキサン-1,2-ジカルボン酸無水物又は4-(3-トリエトキシシリルプロピル)シクロヘキサン-1,2-ジカルボン酸無水物がより好ましい。
(A)ポリシロキサンとしては、(A)ポリシロキサンが、(B)無機粒子が結合したオルガノシラン単位を有するポリシロキサン(以下、「(A1)無機粒子含有ポリシロキサン」)であることが好ましい。(A1)無機粒子含有ポリシロキサンとしては、(B)無機粒子の存在下で、少なくとも一般式(2)で表されるオルガノシラン単位を有するオルガノシラン、及び一般式(3)で表されるオルガノシラン単位を有するオルガノシランを加水分解し、脱水縮合させることによって得られるポリシロキサンを用いることが好ましい。このようにして得られる(A1)無機粒子含有ポリシロキサンを用いることで、(B)無機粒子のアルカリ可溶性が向上するため、アルカリ現像液でのパターン加工性の低下を抑制することができる。また、(B)無機粒子は熱硬化時の収縮率が小さいため、収縮応力の発生を抑制でき、熱硬化時及びイオン注入時における、本発明の感光性樹脂組成物から得られる硬化膜の耐クラック性を向上させることができる。
以下の説明は、(A)ポリシロキサンとは別々に含まれる無機粒子と、(A)ポリシロキサンと結合する無機粒子の双方に共通する。
アルカリ現像液でのパターン加工性を損なうことなく、熱硬化時及びイオン注入時における、本発明の感光性樹脂組成物から得られる硬化膜の耐クラック性向上の観点から、メタノールシリカゾル、IPA-ST、EG-ST、NPC-ST-30、MEK-ST、PMA-ST、PGM-ST、MA-ST-S、MA-ST-M、MA-ST-L、IPA-ST-S、IPA-ST-M、IPA-ST-L、“スノーテックス”(登録商標)OXS、同OS、同O、同O-40、同OL、同XL、同YL若しくは同ZL(以上、何れも日産化学工業(株)製)、“OSCAL”(登録商標)-1421、同-1432、同-1132若しくは同-1632(以上、何れも日揮触媒化成工業(株)製)又は“クォートロン”(登録商標)PL-06L、同PL-1、同PL-2L、同PL-2、同PL-3、同PL-3L、同PL-3H、同PL-5、同PL-1-IPA、同PL-2L-IPA、同PL-2L-MA、同PL-2L-PGME、同PL-3-PGME、同PL-3L-PGME若しくは同PL-2L-DAA(以上、何れも扶桑化学工業(株)製)が好ましく、MA-ST-M、MA-ST-L、IPA-ST-M、IPA-ST-L、“スノーテックス”(登録商標)O-40、同OL若しくは同XL(以上、何れも日産化学工業(株)製)又は“クォートロン”(登録商標)PL-2、同PL-3、同PL-3L、同PL-3H、同PL-5、同PL-3-PGME若しくは同PL-3L-PGME(以上、何れも扶桑化学工業(株)製)がより好ましい。
本発明の感光性樹脂組成物は、ポジ型又はネガ型の感光性を有する感光性組成物であり、ポジ型の感光性を有することが好ましい。前記感光性樹脂組成物がポジ型の感光性を有することで、現像後の解像度に優れたパターンを得ることができる。
本発明の感光性樹脂組成物にポジ型の感光性を付与する場合、前記感光性樹脂組成物に、(C)ナフトキノンジアジド構造を有する化合物を含有させることが好ましい。(C)ナフトキノンジアジド構造を有する化合物とは、露光によって光反応を起こして構造変化し、アルカリ可溶性を有するインデンカルボン酸を発生する化合物をいう。このインデンカルボン酸の発生により、露光部のみがアルカリ現像液に溶解する。
本発明の感光性樹脂組成物にネガ型の感光性を付与する場合、前記感光性樹脂組成物に、(D)光重合開始剤、(E1)光酸発生剤及び(E2)光塩基発生剤からなる群から選ばれる一種以上を含有させることが好ましい。(D)光重合開始剤とは、露光によって結合開裂及び/又は反応してラジカルを発生する化合物をいう。(E1)光酸発生剤とは、露光によって結合開裂を起こして酸を発生する化合物をいう。(E2)光塩基発生剤とは、露光によって結合開裂を起こして塩基を発生する化合物をいう。
本発明の感光性樹脂組成物が(D)光重合開始剤を含有することで、露光時のUV硬化が促進されて、感度を向上させることができる。また、組成物の熱硬化後の架橋密度が向上し、硬化膜の硬度を向上させることができる。
露光時の感度向上や、硬化膜の硬度向上の観点から、α-アミノアルキルフェノン化合物、アシルホスフィンオキシド化合物、オキシムエステル化合物、アミノ基を有するベンゾフェノン化合物又はアミノ基を有する安息香酸エステル化合物が好ましい。アミノ基を有するベンゾフェノン化合物としては、例えば、4,4’-ビス(ジメチルアミノ)ベンゾフェノン又は4,4’-ビス(ジエチルアミノ)ベンゾフェノンが挙げられる。アミノ基を有する安息香酸エステル化合物としては、例えば、4-ジメチルアミノ安息香酸エチル、4-ジメチルアミノ安息香酸(2-エチルヘキシル)又は4-ジエチルアミノ安息香酸エチルが挙げられる。
本発明の感光性樹脂組成物が(E1)光酸発生剤を含有することで、露光時のUV硬化が促進されて、感度を向上させることができる。また、組成物の熱硬化後の架橋密度が向上し、硬化膜の硬度を向上させることができる。
本発明の感光性樹脂組成物が(E2)光塩基発生剤を含有することで、露光時のUV硬化が促進されて、感度を向上させることができる。また、組成物の熱硬化後の架橋密度が向上し、硬化膜の硬度を向上させることができる。
一方、本発明の感光性樹脂組成物がポジ型の感光性を有する場合にも、前記感光性樹脂組成物は、さらに(E1)光酸発生剤及び/又は(E2)光塩基発生剤を含有することが好ましい。(E1)光酸発生剤及び/又は(E2)光塩基発生剤を含有することで、熱硬化後のパターン形状が良好となり、矩形に近いパターンが得られる。これは例えば、現像によってパターン加工した後、ブリーチング露光時、該化合物から大量の酸及び/又は塩基が発生するため、熱硬化時に(A)ポリシロキサン中の残存シラノールの脱水縮合が促進されることで、熱硬化後のパターン形状が良好となり、より矩形に近いパターンが得られる。
本発明の感光性樹脂組成物は、さらに(E3)熱酸発生剤及び/又は(E4)熱塩基発生剤を含有することが好ましい。(E3)熱酸発生剤とは、熱によって結合開裂を起こして酸を発生する化合物をいう。(E4)熱塩基発生剤とは、熱によって結合開裂を起こして塩基を発生する化合物をいう。
本発明の感光性樹脂組成物は、さらに(F)溶解促進架橋剤を含有することが好ましい。(F)溶解促進架橋剤とは、親水性基又はアルカリ可溶性基及び架橋性基を有する化合物をいう。(F)溶解促進架橋剤は、熱硬化時、(A)ポリシロキサン中のシラノール基又はナフトキノンジアジド化合物中の芳香環と反応可能な部位を有する化合物である。また、(A)ポリシロキサンが芳香族基、特に、ナフチル基を有する場合、該化合物が有する芳香族基により、前記(A)ポリシロキサンとの相溶性が向上し、解像度向上、耐クラック性向上、パターン寸法幅変化抑制の効果をより高めることができる。
一般式(15)において、R39は、炭素数1~10のアルキル基、炭素数4~10のシクロアルキル基又は炭素数6~15のアリール基を表し、R40及びR41は、それぞれ独立して、水素又は炭素数1~6のアルキル基を表す。eは、0~3の整数を表す。)
一般式(16)において、X17及びX18は、それぞれ独立して、直接結合又は炭素数1~6のアルキレン鎖を表し、R65~R67は、それぞれ独立して、炭素数1~10のアルキル基、炭素数4~10のシクロアルキル基又は炭素数6~15のアリール基を表し、R68及びR69は、それぞれ独立して、水素又は炭素数1~6のアルキル基を表し、R70及びR71は、それぞれ独立して、水素、炭素数1~6のアルキル基、炭素数1~6のアルコキシ基又はヒドロキシ基を表す。X11及びX12は、それぞれ独立して、直接結合又は炭素数1~6のアルキレン鎖を表す。X11が、直接結合の場合、f、g、p及びqは0である。X12が、直接結合の場合、h、i、r及びsは、0である。X11又はX12が、直接結合でない場合、X13、X14、X15及びX16は、それぞれ独立して、直接結合又は炭素数1~6のアルキレン鎖を表し、R61~R64は、それぞれ独立して、水素、炭素数1~6のハロゲン化アルキル基又はハロゲン原子を表す。また、j、k及びlは、0~2の整数を表す。X11及びX12が、直接結合でない場合、p、q、r及びsは、1であり、f、g、h及びiは、1~6の整数を表す。)
一般式(14)において、X1は、直接結合又は炭素数1~4のアルキレン鎖が好ましい。X1が、直接結合でない場合、X2及びX3は、それぞれ独立して、直接結合又は炭素数1~4のアルキレン鎖が好ましい。また、R31及びR32は、それぞれ独立して、水素、炭素数1~4のハロゲン化アルキル基又はハロゲン原子が好ましい。また、R33及びR34は、それぞれ独立して、炭素数1~6のアルキル基、炭素数4~7のシクロアルキル基又は炭素数6~10のアリール基が好ましい。また、R35及びR36は、それぞれ独立して、水素又は炭素数1~4のアルキル基が好ましい。また、R37及びR38は、それぞれ独立して、水素、炭素数1~4のアルキル基、炭素数1~4のアルコキシ基又はヒドロキシ基が好ましい。
(F)溶解促進架橋剤の含有量が上記範囲内であると、現像後の残渣発生を抑制し、現像後の解像度を向上させることができるとともに、熱硬化時及びイオン注入時における、硬化膜の耐クラック性を向上させることができ、さらに、露光及び現像時における、露光量に対するパターン寸法幅変化を低減することができる。なお、(A)ポリシロキサンが(A1)無機粒子含有ポリシロキサンの場合、(A1)無機粒子含有ポリシロキサンを構成する(B)無機粒子の重量を含めて100重量部とする。
本発明の感光性樹脂組成物は、さらに(G)溶解促進剤を含有することが好ましい。(G)溶解促進剤とは、親水性基又はアルカリ可溶性基を有する化合物をいう。
DISPERBYK-2000、DISPERBYK-2001、DISPERBYK-2008、DISPERBYK-2009、DISPERBYK-2010、DISPERBYK-2012、DISPERBYK-2015、DISPERBYK-2022、DISPERBYK-2025、DISPERBYK-2050、BYK-381、BYK-3440若しくはBYK-3441(以上、何れもビックケミー・ジャパン(株)製)が挙げられる。
本発明の感光性樹脂組成物がネガ型の感光性を有する場合、前記感光性樹脂組成物は、さらにラジカル重合性化合物を含有しても構わない。ラジカル重合性化合物とは、分子中に複数のエチレン性不飽和二重結合基を有する化合物をいう。露光により、前述した光重合開始剤から発生するラジカルによって、ラジカル重合性化合物の重合が進行し、ポリシロキサンを含有する組成物の露光部がアルカリ現像液に対して不溶化して、ネガ型のパターンを形成することができる。
本発明の感光性樹脂組成物は、さらにシランカップリング剤を含有しても構わない。シランカップリング剤を含有することで、硬化膜と基板界面における相互作用が増大し、硬化膜の密着性及び耐薬品性が向上する。
本発明の感光性樹脂組成物は、さらに溶剤を含有しても構わない。溶剤としては、各成分を均一に溶解することによる、得られる硬化膜の透明性向上の観点で、アルコール性水酸基を有する化合物、カルボニル基を有する化合物又はエーテル結合を3つ以上有する化合物が好ましく、大気圧下の沸点が110~250℃である化合物がより好ましい。沸点を110℃以上とすることで、塗布時に適度に溶剤が揮発して塗膜の乾燥が進行し、塗布ムラのない良好な塗膜を得ることができる。一方、沸点を250℃以下とすることで、塗膜中の残存する溶剤量を少なく抑えることができ、熱硬化時の膜収縮量を低減できるため、良好な平坦性の硬化膜を得ることができる。
本発明の感光性樹脂組成物は、さらに界面活性剤を含有しても構わない。界面活性剤を適量含有することで、塗布時のレベリング性が向上して塗布ムラの発生を抑制することができ、均一な塗布膜を得ることができる。
本発明の感光性樹脂組成物は、さらに、他の樹脂又はそれらの前駆体を含有しても構わない。樹脂又はそれらの前駆体としては、例えば、ポリイミド、アクリル樹脂、エポキシ樹脂、ノボラック樹脂、ウレア樹脂、ポリアミック酸、ポリアミドイミド、ポリアミド、ポリベンゾオキサゾール若しくはポリウレタン又はそれらの前駆体が挙げられる。
本発明の感光性樹脂組成物の、代表的な製造方法について説明する。ポジ型の感光性を有する感光性樹脂組成物を製造する場合、例えば、(C)ナフトキノンジアジド構造を有する化合物、(E1)光酸発生剤、(E2)光塩基発生剤、(E3)熱酸発生剤、(E4)熱塩基発生剤及びその他の添加剤を、任意の溶剤に加え、撹拌して溶解させる。その後、(A)ポリシロキサン及び(B)無機粒子を添加し、20分~3時間撹拌して均一な溶液とする。撹拌後、得られた溶液をろ過することで、ポジ型の感光性を有する、本発明の感光性樹脂組成物が得られる。
本発明の半導体装置の製造方法を用いたプロセスとして、本発明の感光性樹脂組成物をイオン注入マスクレジストとして用いたイオン注入プロセスを例に、図1に示して説明する。まず、(1)炭化ケイ素半導体基板1上に、本発明の感光性樹脂組成物を塗布及びプリベークして、ポリシロキサン膜2を形成する。次に、(2)所望のパターンを有するマスク3を介して、活性化学線4を照射する。その後、(3)現像してパターン加工をした後、必要に応じてブリーチング露光及びミドルベークし、熱硬化させることで、所望のパターンを有するポリシロキサンパターン2aを形成する。次に、(4)ポリシロキサンパターン2aをイオン注入マスクとして、イオン5を注入し、炭化ケイ素半導体基板1中に不純物領域6を形成する。その後、(5)炭化ケイ素半導体基板1上から、ポリシロキサンパターン2aを除去する。
本発明の半導体装置の製造方法は、(1)基板上に、本発明の感光性樹脂組成物又はその硬化物のパターンを得る工程、を有する。本発明の感光性樹脂組成物のパターンを得る工程としては、例えば、基板上に前記感光性樹脂組成物を塗布して成膜した後にパターン加工する工程、又は基板上に前記感光性樹脂組成物をパターン状に塗布して成膜する工程が挙げられる。
本発明の感光性樹脂組成物を塗布する方法としては、例えば、マイクログラビアコーティング、スピンコーティング、ディップコーティング、カーテンフローコーティング、ロールコーティング、スプレーコーティング又はスリットコーティングが挙げられる。塗布膜厚は、塗布方法、本発明の感光性樹脂組成物の固形分濃度や粘度などによって異なるが、通常は塗布及びプリベーク後の膜厚が0.1~30μmになるように塗布する。
基板上に、本発明の感光性樹脂組成物を塗布及びプリベークした後、ステッパー、ミラープロジェクションマスクアライナー(MPA)又はパラレルライトマスクアライナー(PLA)などの露光機を用いて露光する。露光時に照射する活性化学線としては、例えば、紫外線、可視光線、電子線、X線、KrF(波長248nm)レーザー又はArF(波長193nm)レーザーなどが挙げられる。水銀灯のj線(波長313nm)、i線(波長365nm)、h線(波長405nm)又はg線(波長436nm)を用いることが好ましい。また露光量は通常100~40,000J/m2(10~4,000mJ/cm2)程度(i線照度計の値)であり、必要に応じて所望のパターンを有するマスクを介して露光することができる。
使用することができる。露光後ベーク温度としては、50~180℃が好ましく、60~150℃がより好ましい。露光後ベーク時間は、10秒~数時間が好ましい。露光後ベーク時間が上記範囲内であると、反応が良好に進行し、現像時間を短くできる場合がある。
基板上に、本発明の感光性樹脂組成物を塗布及びプリベークした後、必要に応じて、後述する熱硬化工程の処理をしても構わない。その後、前記感光性樹脂組成物の塗膜上に、上記と同様の方法でフォトレジストを塗布して成膜する。塗布した後、上記と同様の方法で、プリベークすることが好ましい。
本発明の感光性樹脂組成物をパターン状に塗布する方法としては、例えば、凸版印刷、凹版印刷、孔版印刷、平版印刷、スクリーン印刷、インクジェット印刷、オフセット印刷又はレーザー印刷が挙げられる。塗布膜厚は、塗布方法、本発明の感光性樹脂組成物の固形分濃度や粘度などによって異なるが、通常は塗布及びプリベーク後の膜厚が0.1~30μmになるように塗布する。
本発明の半導体装置の製造方法は、(1)基板上に、本発明の感光性樹脂組成物又はその硬化物のパターンを得る工程として、(1-1)本発明の感光性樹脂組成物のパターンを150~1,500℃に加熱する工程を有することが好ましい。熱硬化は、オーブン、ホットプレート、縦型炉、横型炉、電気炉、フラッシュアニール装置、レーザーアニール装置又は赤外線などを使用することができる。本発明の感光性樹脂組成物の塗膜を、150~1,500℃に加熱して熱硬化させることで、硬化膜のイオン阻止性、耐薬品性及びドライエッチング耐性を向上させることができる。
本発明の半導体装置の製造方法は、(2)本発明の感光性樹脂組成物又はその硬化物のパターンが形成された基板に不純物領域を形成する工程及び/又は前記パターンが形成された基板をパターン加工する工程、を有する。
本発明の感光性樹脂組成物又はその硬化物のパターンをイオン注入マスクとして、前記パターンが形成された基板にイオン注入することで、前記基板中に前記パターン状の不純物領域を形成することができる。
本発明の感光性樹脂組成物又はその硬化物のパターンをドーパント暴露マスクとして、前記パターンが形成された基板にドーパント暴露することで、前記基板中に前記パターン状の不純物領域を形成することができる。
本発明の感光性樹脂組成物又はその硬化物のパターンをドライエッチングマスクとして、前記パターンが形成された基板をドライエッチングすることで、前記基板を前記パターン状に加工することができる。
本発明の感光性樹脂組成物又はその硬化物のパターンをウェットエッチングマスクとして、前記パターンが形成された基板をウェットエッチングすることで、前記基板を前記パターン状に加工することができる。
本発明の半導体装置の製造方法は、(3)本発明の感光性樹脂組成物又はその硬化物のパターンを除去する工程、を有する。
本発明の半導体装置の製造方法は、(3)本発明の感光性樹脂組成物又はその硬化物のパターンを除去する工程として、(3-1)前記パターンを300~1,500℃で焼成する工程を有しても構わない。前記パターンを300~1,500℃で焼成することで、前記パターン中の有機物の結合開裂、有機物の熱分解及び有機物の揮発が進行するとともに、前記パターン中にクラックが発生し、前記パターンへの薬液の浸透が促進され、前記パターンを残渣なく容易に除去することが可能となる。また、前記パターンを300~1,500℃で焼成することで、イオン注入時、前記パターンに発生した変質層の分解も進行するため、前記パターンを残渣なく容易に除去することが可能となる。
本発明の半導体装置の製造方法は、(1)基板上に、本発明の感光性樹脂組成物又はその硬化物のパターンを得る工程として、(1-1a)本発明の感光性樹脂組成物のパターンを500~1,500℃に加熱する工程を有する場合、(3)前記パターンを除去する工程が、(3-A)前記パターンを0~300℃未満で処理する工程からなることが好ましい。
本発明の半導体装置の製造方法は、(3)本発明の感光性樹脂組成物又はその硬化物のパターンを除去する工程として、(3-2)前記パターンを、フッ化水素酸を含有する溶液に浸漬する工程を有しても構わない。フッ化水素酸を含有する溶液に浸漬することで、前記パターンを残渣なく容易に除去することが可能となる。前記溶液がフッ化水素酸を含有することで、前記パターン中の、シランカップリング剤、シリコーン、シロキサン、シリカ粒子又は二酸化ケイ素などのケイ素由来の成分を効果的に溶解し、前記パターンを残渣なく容易に除去することが可能となる。
本発明の半導体装置の製造方法は、(3)本発明の感光性樹脂組成物又はその硬化物のパターンを除去する工程として、(3-2)前記パターンを、フッ化水素酸を含有する溶液に浸漬する工程の後、さらに(3-3)紫外線処理する工程、(3-4)プラズマ処理する工程、及び、(3-5)アルカリ溶液、有機溶媒、酸性溶液及び酸化剤からなる群から選ばれる一種以上を含有する薬液(以下、「特定の薬液」)に浸漬する工程、のいずれか一種以上の工程を有しても構わない。これらの工程は、前記(3-2)の工程の浸漬時間を短縮する代わりに導入されるものであり、前記(3-2)、及び、該(3-3)、(3-4)及び(3-5)からなる群から選ばれる一種以上の工程を合わせることで、合計としてプロセスタイムを短縮することを目的とする。
本発明の半導体装置の製造方法において、(3-3)紫外線処理する工程又は(3-4)プラズマ処理する工程に用いられるガスとしては、酸素、オゾン、アルゴン、フッ素又は塩素からなる群から選ばれる一種以上を成分として含有するガスが挙げられる。本発明の感光性樹脂組成物又はその硬化物のパターンの除去性の観点から、酸素又はオゾンを成分として含有するガスが好ましい。
本発明の半導体装置の製造方法において、(3-5)特定の薬液に浸漬する工程に用いられる薬液は、除去する本発明の感光性樹脂組成物又はその硬化物のパターン中の成分を溶解可能な薬液を選択することが好ましく、それにより前記パターンの除去に要する時間を短縮することが可能となる。
本発明の半導体装置の製造方法は、(3-5)特定の薬液に浸漬する工程が、(3-5’)特定の薬液に、浸漬しながら超音波を照射する又は浸漬後に超音波を照射する工程であっても構わない。超音波を照射することで、特定の薬液中の成分の分子を加速し、本発明の感光性樹脂組成物又はその硬化物のパターン中の成分との衝突を促進させることで、前記パターンを特定の薬液に溶解しやすくすることができる。従って、超音波を照射することで、前記パターンの除去に要する時間を短縮することが可能となる。
本発明の半導体装置の製造方法について、本発明の感光性樹脂組成物を用いて、炭化ケイ素半導体基板に不純物領域を形成する方法を、図2に示して説明する。
本発明の感光性樹脂組成物は、高解像度のパターン形成が可能であり、耐熱性及び耐クラック性に優れた硬化膜を得ることが可能で、アルカリ現像可能な感光性樹脂組成物である。さらに、前記感光性樹脂組成物を熱硬化して得られる硬化膜は、高透明性を有する。
AIBN:2,2’-アゾビス(イソブチロニトリル)
BYK-3440:水溶性アクリル樹脂(ビックケミー・ジャパン(株)製)
CF4:テトラフルオロメタン
DAA:ジアセトンアルコール
Dimethylol-BisOC-P:2-(4-ヒドロキシ-3-ヒドロキシメチル-5-メチル)フェニル-2-[4-(4-ヒドロキシ-3-ヒドロキシメチル-5-メチル)フェニル]プロパン(本州化学工業(株)製)
EtOH:エタノール
FPD:フラットパネルディスプレイ
HF:フッ化水素酸
HMDS:ヘキサメチルジシラザン
IPA:イソプロピルアルコール
KBM-04:テトラメトキシシラン(信越化学工業(株)製)
KBM-303:2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン(信越化学工業(株)製)
KBM-403:3-グリシドキシプロピルトリメトキシシラン(信越化学工業(株)製)
M-315:“アロニックス”(登録商標)M-315(東亞合成(株)製;1,3,5-トリス((メタ)アクリロキシエチル)イソシアヌル酸)
MA-ST-L:メタノールを分散媒とした粒子径15~20nmのシリカ粒子(日産化学工業(株)製)
MB:3-メトキシ-1-ブタノール
MDT:N-トリフルオロメチルスルホニルオキシ-5-ノルボルネン-2,3-ジカルボキシイミド(ヘレウス(株)製)
MeOH:メタノール
NaOH:水酸化ナトリウム
NMD-W:2.38wt%水酸化テトラメチルアンモニウム水溶液(東京応化工業(株)製)
NMP:N-メチル-2-ピロリドン
NMR:核磁気共鳴
OXE-01:“IRGACURE”(登録商標) OXE-01(BASF製;1-[4-(フェニルチオ)フェニル]オクタン-1,2-ジオン-2-(O-ベンゾイル)オキシム)
PAI-101:α-(4-トリルスルホニルオキシ)イミノ-4-メトキシベンジルシアニド(みどり化学(株)製)
PGME:プロピレングリコールモノメチルエーテル
PGMEA:プロピレングリコールモノメチルエーテルアセテート
PH3:ホスフィン
Ph-cc-AP:1-(3,4-ジヒドロキシフェニル)-1-(4-ヒドロキシフェニル)-1-フェニルエタン(本州化学工業(株)製)
PL-2L-MA:“クォートロン”(登録商標)PL-2L-MA(扶桑化学工業(株)製;メタノールを分散媒とした粒子径15~20nmのシリカ粒子)
PL-2L-PGME:“クォートロン”(登録商標)PL-2L-PGME(扶桑化学工業(株)製;プロピレングリコールモノメチルエーテルを分散媒とした粒子径15~20nmのシリカ粒子)
PL-3-PGME:“クォートロン”(登録商標)PL-3-PGME(扶桑化学工業(株)製;プロピレングリコールモノメチルエーテルを分散媒とした粒子径15~20nmのシリカ粒子)
RF:高周波
RIE:反応性イオンエッチング
SI-200:“サンエイド”(登録商標)SI-200(三新化学工業(株)製;4-(メトキシカルボニルオキシ)フェニルジメチルスルホニウムトリフルオロメタンスルホネート)
SiC:炭化ケイ素
SR-8EGS:ポリエチレングリコールジグリシジルエーテル(阪本薬品工業(株)製)
TGA:熱重量分析
THF:テトラヒドロフラン
TM-BIP-A:“AVライト”(登録商標)TM-BIP-A(旭有機材工業(株)製;2,2-ビス[4-ヒドロキシ-3,5-ビス(ヒドロキシメチル)フェニル]プロパン)
TMX-BIP-A:“AVライト”(登録商標)TM-BIP-A(旭有機材工業(株)製;2,2-ビス[4-ヒドロキシ-3,5-ビス(メトキシメチル)フェニル]プロパン)
TMOM-BPAF:2,2-ビス[4-ヒドロキシ-3,5-ビス(メトキシメチル)フェニル]プロパン(本州化学工業(株)製)
X-88-347:3-[(3-エチル-3-オキセタニル)メトキシ]プロピルトリメトキシシラン(信越化学工業(株)製)。
三口フラスコにジメチルジメトキシシランを30.06g(50mol%)、テトラメトキシシランを19.03g(25mol%)、メチルトリメトキシシランを17.03g(25mol%)、DAAを51.67g仕込んだ。フラスコ内に空気を0.05L/minで流し、混合溶液を撹拌しながらオイルバスで40℃に加熱した。混合溶液をさらに撹拌しながら、水24.78gにリン酸0.331gを溶かしたリン酸水溶液を10分かけて添加した。添加終了後、40℃で30分間撹拌して、シラン化合物を加水分解させた。その後、バス温を70℃にして1時間撹拌した後、続いてバス温を110℃まで昇温した。昇温開始後、約1時間後に溶液の内温が100℃に到達し、そこから1~3時間加熱撹拌した(内温は95~105℃)。1~3時間加熱撹拌して得られた樹脂溶液を氷浴にて冷却した後、陰イオン交換樹脂及び陽イオン交換樹脂を、それぞれ樹脂溶液に対して2重量%加えて12時間撹拌した。撹拌後、陰イオン交換樹脂及び陽イオン交換樹脂をろ過して除去し、ポリシロキサン溶液(A-1)を得た。得られたポリシロキサン溶液(A-1)の固形分濃度は38重量%、ポリシロキサンのMwは3,600であった。
ジメチルジメトキシシランを12.02g(20mol%)、テトラメトキシシランを7.61g(10mol%)、メチルトリメトキシシランを47.68g(70mol%)、DAAを50.87g、水を26.13g、リン酸を0.337g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-2)を得た。得られたポリシロキサン溶液(A-2)の固形分濃度は40重量%、ポリシロキサンのMwは4,000であった。
ジメチルジメトキシシランを24.04g(40mol%)、ジフェニルジメトキシシランを42.76g(35mol%)、テトラメトキシシランを19.03g(25mol%)、DAAを85.57g、水を22.53g、リン酸を0.429g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-3)を得た。得られたポリシロキサン溶液(A-3)の固形分濃度は37重量%、ポリシロキサンのMwは3,400であった。
ジメチルジメトキシシランを24.04g(40mol%)、ジフェニルジメトキシシランを6.11g(5mol%)、テトラメトキシシランを11.42g(15mol%)、フェニルトリメトキシシランを39.66g(40mol%)、DAAを75.21g、水を24.33g、リン酸を0.406g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-4)を得た。得られたポリシロキサン溶液(A-4)の固形分濃度は38重量%、ポリシロキサンのMwは3,700であった。
ジメチルジメトキシシランを18.03g(30mol%)、テトラメトキシシランを7.61g(10mol%)、フェニルトリメトキシシランを59.49g(60mol%)、DAAを79.33g、水を25.23g、リン酸を0.426g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-5)を得た。得られたポリシロキサン溶液(A-5)の固形分濃度は38重量%、ポリシロキサンのMwは3,900であった。
ジメチルジメトキシシランを9.02g(15mol%)、テトラメトキシシランを3.81g(5mol%)、フェニルトリメトキシシランを59.49g(60mol%)、メチルトリメトキシシランを13.62g(20mol%)、DAAを78.81g、水を26.13g、リン酸を0.430g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-6)を得た。得られたポリシロキサン溶液(A-6)の固形分濃度は40重量%、ポリシロキサンのMwは4,100であった。
ジメチルジメトキシシランを18.03g(30mol%)、ジフェニルジメトキシシランを24.44g(20mol%)、テトラメトキシシランを19.03g(25mol%)、フェニルトリメトキシシランを24.79g(25mol%)、DAAを81.92g、水を24.78g、リン酸を0.431g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-7)を得た。得られたポリシロキサン溶液(A-7)の固形分濃度は37重量%、ポリシロキサンのMwは3,600であった。
ジメチルジメトキシシランを18.03g(30mol%)、テトラメトキシシランを11.42g(15mol%)、フェニルトリメトキシシランを54.53g(55mol%)、DAAを76.74g、水を25.68g、リン酸を0.420g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-8)を得た。得られたポリシロキサン溶液(A-8)の固形分濃度は38重量%、ポリシロキサンのMwは3,800であった。
ジメチルジメトキシシランを6.01g(10mol%)、テトラメトキシシランを3.81g(5mol%)、フェニルトリメトキシシランを59.49g(60mol%)、メチルトリメトキシシランを17.03g(25mol%)、DAAを78.54g、水を26.58g、リン酸を0.432g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-9)を得た。得られたポリシロキサン溶液(A-9)の固形分濃度は40重量%、ポリシロキサンのMwは4,200であった。
ジメチルジメトキシシランを18.03g(30mol%)、ジフェニルジメトキシシランを36.65g(30mol%)、テトラメトキシシランを30.44g(40mol%)、DAAを79.33g、水を25.23g、リン酸を0.426g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-10)を得た。得られたポリシロキサン溶液(A-10)の固形分濃度は37重量%、ポリシロキサンのMwは3,600であった。
ジメチルジメトキシシランを18.03g(30mol%)、テトラメトキシシランを15.22g(20mol%)、フェニルトリメトキシシランを49.57g(50mol%)、DAAを74.15g、水を26.13g、リン酸を0.414g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-11)を得た。得られたポリシロキサン溶液(A-11)の固形分濃度は38重量%、ポリシロキサンのMwは3,900であった。
1,1,3,3-テトラメチル-1,3-ジメトキシジシロキサンを14.58g(Si原子mol比で30mol%)、ジフェニルジメトキシシランを24.44g(20mol%)、テトラメトキシシランを19.03g(25mol%)、フェニルトリメトキシシランを24.79g(25mol%)、DAAを81.92g、水を22.07g、リン酸を0.414g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-12)を得た。得られたポリシロキサン溶液(A-12)の固形分濃度は37重量%、ポリシロキサンのMwは3,600であった。
ジメチルジメトキシシランを18.03g(30mol%)、ジフェニルジメトキシシランを24.44g(20mol%)、Mシリケート51を14.71g(Si原子mol比で25mol%)、フェニルトリメトキシシランを24.79g(25mol%)、DAAを81.92g、水を21.40g、リン酸を0.410g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-13)を得た。得られたポリシロキサン溶液(A-13)の固形分濃度は37重量%、ポリシロキサンのMwは3,600であった。
ジメチルジメトキシシランを6.01g(10mol%)、テトラメトキシシランを3.81g(5mol%)、フェニルトリメトキシシランを69.40g(70mol%)、メチルトリメトキシシランを10.22g(15mol%)、DAAを83.20g、水を26.58g、リン酸を0.447g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-14)を得た。得られたポリシロキサン溶液(A-14)の固形分濃度は39重量%、ポリシロキサンのMwは4,000であった。
ジメチルジメトキシシランを27.05g(45mol%)、ジフェニルジメトキシシランを6.11g(5mol%)、テトラメトキシシランを19.03g(25mol%)、フェニルトリメトキシシランを24.79g(25mol%)、DAAを67.96g、水を24.78g、リン酸を0.385g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-15)を得た。得られたポリシロキサン溶液(A-15)の固形分濃度は37重量%、ポリシロキサンのMwは3,700であった。
ジメチルジメトキシシランを30.06g(50mol%)、テトラメトキシシランを19.03g(25mol%)、フェニルトリメトキシシランを19.83g(20mol%)、メチルトリメトキシシランを3.41g(5mol%)、DAAを60.98g、水を24.78g、リン酸を0.362g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-16)を得た。得られたポリシロキサン溶液(A-16)の固形分濃度は37重量%、ポリシロキサンのMwは3,700であった。
ジメチルジメトキシシランを18.03g(30mol%)、ジフェニルジメトキシシランを24.44g(20mol%)、テトラメトキシシランを19.03g(25mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を62.09g(25mol%)、DAAを91.31g、水を24.78g、リン酸を0.463g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-17)を得た。得られたポリシロキサン溶液(A-17)の固形分濃度は37重量%、ポリシロキサンのMwは3,500であった。
三口フラスコにジメチルジメトキシシランを18.03g(30mol%)、ジフェニルジメトキシシランを24.44g(20mol%)、テトラメトキシシランを19.03g(25mol%)、フェニルトリメトキシシランを19.83g(20mol%)、DAAを76.81g仕込んだ。フラスコ内に空気を0.05L/minで流し、混合溶液を撹拌しながらオイルバスで40℃に加熱した。混合溶液をさらに撹拌しながら、水25.23gにリン酸0.439gを溶かしたリン酸水溶液を10分かけて添加した。添加終了後、40℃で30分間撹拌して、シラン化合物を加水分解させた。加水分解終了後、DAA8.53gに3-トリメトキシシリルプロピルコハク酸無水物6.56g(5mol%)を溶かした溶液を添加した。その後、バス温を70℃にして1時間撹拌した後、続いてバス温を110℃まで昇温した。昇温開始後、約1時間後に溶液の内温が100℃に到達し、そこから1~3時間加熱撹拌した(内温は95~105℃)。1~3時間加熱撹拌して得られた樹脂溶液を氷浴にて冷却した後、陰イオン交換樹脂及び陽イオン交換樹脂を、それぞれ樹脂溶液に対して2重量%加えて12時間撹拌した。撹拌後、陰イオン交換樹脂及び陽イオン交換樹脂をろ過して除去し、ポリシロキサン溶液(A-18)を得た。得られたポリシロキサン溶液(A-18)の固形分濃度は38重量%、ポリシロキサンのMwは3,700であった。
ジメチルジメトキシシランを18.03g(30mol%)、ジフェニルジメトキシシランを24.44g(20mol%)、テトラメトキシシランを19.03g(25mol%)、フェニルトリメトキシシランを14.87g(15mol%)、DAAを79.88g、水を25.68g、リン酸を0.447g、DAAを8.88g、3-トリメトキシシリルプロピルコハク酸無水物を13.12g(10mol%)使用し、合成例18と同様に重合をして、ポリシロキサン溶液(A-19)を得た。得られたポリシロキサン溶液(A-19)の固形分濃度は38重量%、ポリシロキサンのMwは3,600であった。
三口フラスコにジメチルジメトキシシランを9.02g(30mol%)、ジフェニルジメトキシシランを12.22g(20mol%)、テトラメトキシシランを9.51g(25mol%)、フェニルトリメトキシシランを9.91g(20mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を68.08g、DAAを59.08g仕込んだ。フラスコ内に空気を0.05L/minで流し、混合溶液を撹拌しながらオイルバスで40℃に加熱した。混合溶液をさらに撹拌しながら、水12.61gにリン酸0.220gを溶かしたリン酸水溶液を10分かけて添加した。添加終了後、40℃で30分間撹拌して、シラン化合物を加水分解させた。加水分解終了後、DAA6.56gに3-トリメトキシシリルプロピルコハク酸無水物3.28g(5mol%)を溶かした溶液を添加した。その後、バス温を70℃にして1時間撹拌した後、続いてバス温を110℃まで昇温した。昇温開始後、約1時間後に溶液の内温が100℃に到達し、そこから1~3時間加熱撹拌した(内温は95~105℃)。1~3時間加熱撹拌して得られた樹脂溶液を氷浴にて冷却した後、陰イオン交換樹脂及び陽イオン交換樹脂を、それぞれ樹脂溶液に対して2重量%加えて12時間撹拌した。撹拌後、陰イオン交換樹脂及び陽イオン交換樹脂をろ過して除去し、ポリシロキサン溶液(A-20)を得た。得られたポリシロキサン溶液(A-20)の固形分濃度は38重量%、ポリシロキサンのMwは1,200であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを9.02g(30mol%)、テトラメトキシシランを5.71g(15mol%)、フェニルトリメトキシシランを24.79g(50mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を63.94g、DAAを55.49g、水を13.06g、リン酸を0.214g、DAAを6.17g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例20と同様に重合をして、ポリシロキサン溶液(A-21)を得た。得られたポリシロキサン溶液(A-21)の固形分濃度は39重量%、ポリシロキサンのMwは1,200であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを9.02g(30mol%)、ジフェニルジメトキシシランを12.22g(20mol%)、テトラメトキシシランを9.51g(25mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を24.84g(20mol%)、メタノールシリカゾル(30.5重量%のMeOH溶液)を54.64g、DAAを64.28g、水を12.61g、DAAを7.14g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例20と同様に重合をして、ポリシロキサン溶液(A-22)を得た。得られたポリシロキサン溶液(A-22)の固形分濃度は38重量%、ポリシロキサンのMwは1,200であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、メタノールシリカゾルは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを14.43g(30mol%)、ジフェニルジメトキシシランを19.55g(20mol%)、テトラメトキシシランを15.22g(25mol%)、フェニルトリメトキシシランを15.86g(20mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を22.48g、DAAを68.27g、水を20.18g、リン酸を0.352g、DAAを7.59g、3-トリメトキシシリルプロピルコハク酸無水物を5.25g(5mol%)使用し、合成例20と同様に重合をして、ポリシロキサン溶液(A-23)を得た。得られたポリシロキサン溶液(A-23)の固形分濃度は39重量%、ポリシロキサンのMwは1,600であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して10重量%含まれる。
ジメチルジメトキシシランを10.82g(30mol%)、ジフェニルジメトキシシランを14.66g(20mol%)、テトラメトキシシランを11.42g(25mol%)、フェニルトリメトキシシランを11.90g(20mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を37.93g、DAAを57.60g、水を15.14g、リン酸を0.264g、DAAを6.40g、3-トリメトキシシリルプロピルコハク酸無水物を3.93g(5mol%)使用し、合成例20と同様に重合をして、ポリシロキサン溶液(A-24)を得た。得られたポリシロキサン溶液(A-24)の固形分濃度は38重量%、ポリシロキサンのMwは1,400であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して20重量%含まれる。
ジメチルジメトキシシランを7.21g(30mol%)、ジフェニルジメトキシシランを9.77g(20mol%)、テトラメトキシシランを7.61g(25mol%)、フェニルトリメトキシシランを7.93g(20mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を101.14g、DAAを61.44g、水を10.09g、リン酸を0.176g、DAAを6.83g、3-トリメトキシシリルプロピルコハク酸無水物を2.62g(5mol%)使用し、合成例20と同様に重合をして、ポリシロキサン溶液(A-25)を得た。得られたポリシロキサン溶液(A-25)の固形分濃度は37重量%、ポリシロキサンのMwは1,200であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して50重量%含まれる。
三口フラスコにジメチルジメトキシシランを9.02g(30mol%)、テトラメトキシシランを5.71g(15mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を55.88g(45mol%)、2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシランを6.16g(10mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を79.19g、DAAを76.36g仕込んだ。フラスコ内に空気を0.05L/minで流し、混合溶液を撹拌しながらオイルバスで40℃に加熱した。混合溶液をさらに撹拌しながら、水13.29gにリン酸0.244gを溶かしたリン酸水溶液を10分かけて添加した。添加終了後、40℃で30分間撹拌して、シラン化合物を加水分解させた。その後、バス温を70℃にして1時間撹拌した後、続いてバス温を110℃まで昇温した。昇温開始後、約1時間後に溶液の内温が100℃に到達し、そこから1~3時間加熱撹拌した(内温は95~105℃)。1~3時間加熱撹拌して得られた樹脂溶液を氷浴にて冷却した後、陰イオン交換樹脂及び陽イオン交換樹脂を、それぞれ樹脂溶液に対して2重量%加えて12時間撹拌した。撹拌後、陰イオン交換樹脂及び陽イオン交換樹脂をろ過して除去し、ポリシロキサン溶液(A-26)を得た。得られたポリシロキサン溶液(A-26)の固形分濃度は39重量%、ポリシロキサンのMwは1,200であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
三口フラスコにジメチルジメトキシシランを18.03g(30mol%)、ジフェニルジメトキシシランを24.44g(20mol%)、テトラメトキシシランを19.03g(25mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を24.84g(10mol%)、ビニルトリメトキシシランを11.12g(15mol%)、DAAを80.05g仕込んだ。フラスコ内に窒素を0.05L/minで流し、混合溶液を撹拌しながらオイルバスで40℃に加熱した。混合溶液をさらに撹拌しながら、水24.78gにリン酸0.425gを溶かしたリン酸水溶液を10分かけて添加した。添加終了後、40℃で30分間撹拌して、シラン化合物を加水分解させた。その後、バス温を70℃にして1時間撹拌した後、続いてバス温を110℃まで昇温した。昇温開始後、約1時間後に溶液の内温が100℃に到達し、そこから1~3時間加熱撹拌した(内温は95~105℃)。1~3時間加熱撹拌して得られた樹脂溶液を氷浴にて冷却した後、陰イオン交換樹脂及び陽イオン交換樹脂を、それぞれ樹脂溶液に対して2重量%加えて12時間撹拌した。撹拌後、陰イオン交換樹脂及び陽イオン交換樹脂をろ過して除去し、ポリシロキサン溶液(A-27)を得た。得られたポリシロキサン溶液(A-27)の固形分濃度は40重量%、ポリシロキサンのMwは4,700であり、二重結合当量は880であった。
三口フラスコにジメチルジメトキシシランを9.02g(30mol%)、ジフェニルジメトキシシランを12.22g(20mol%)、テトラメトキシシランを9.51g(25mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を6.21g(5mol%)、ビニルトリメトキシシランを5.56g(15mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を65.08g、DAAを56.48g仕込んだ。フラスコ内に窒素を0.05L/minで流し、混合溶液を撹拌しながらオイルバスで40℃に加熱した。混合溶液をさらに撹拌しながら、水12.61gにリン酸0.213gを溶かしたリン酸水溶液を10分かけて添加した。添加終了後、40℃で30分間撹拌して、シラン化合物を加水分解させた。加水分解終了後、DAA6.28gに3-トリメトキシシリルプロピルコハク酸無水物3.28g(5mol%)を溶かした溶液を添加した。その後、バス温を70℃にして1時間撹拌した後、続いてバス温を110℃まで昇温した。昇温開始後、約1時間後に溶液の内温が100℃に到達し、そこから1~3時間加熱撹拌した(内温は95~105℃)。1~3時間加熱撹拌して得られた樹脂溶液を氷浴にて冷却した後、陰イオン交換樹脂及び陽イオン交換樹脂を、それぞれ樹脂溶液に対して2重量%加えて12時間撹拌した。撹拌後、陰イオン交換樹脂及び陽イオン交換樹脂をろ過して除去し、ポリシロキサン溶液(A-28)を得た。得られたポリシロキサン溶液(A-28)の固形分濃度は40重量%、ポリシロキサンのMwは2,200、カルボン酸当量は1330であり、二重結合当量は890であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを24.04g(40mol%)、ジフェニルジメトキシシランを24.44g(20mol%)、テトラメトキシシランを11.42g(15mol%)、フェニルトリメトキシシランを24.79g(25mol%)、DAAを82.98g、水を22.98g、リン酸を0.423g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-29)を得た。得られたポリシロキサン溶液(A-29)の固形分濃度は36重量%、ポリシロキサンのMwは3,500であった。
ジメチルジメトキシシランを18.03g(30mol%)、テトラメトキシシランを22.83g(30mol%)、フェニルトリメトキシシランを39.66(40mol%)、DAAを68.97g、水を27.03g、リン酸を0.403g使用し、合成例1と同様に重合をして、ポリシロキサン溶液(A-30)を得た。得られたポリシロキサン溶液(A-30)の固形分濃度は38重量%、ポリシロキサンのMwは4,000であった。
1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を62.09g(50mol%)、メチルトリメトキシシランを13.62g(40mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を82.87g、DAAを71.92g、水を13.97g、リン酸を0.256g、DAAを7.99g、3-トリメトキシシリルプロピルコハク酸無水物を6.56g(10mol%)使用し、合成例20と同様に重合をして、ポリシロキサン溶液(A-31)を得た。得られたポリシロキサン溶液(A-31)の固形分濃度は39重量%、ポリシロキサンのMwは1,300であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを6.01g(20mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を62.09g(50mol%)、メチルトリメトキシシランを8.51g(25mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を79.13g、DAAを68.67g、水を12.84g、リン酸を0.244g、DAAを7.63g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例20と同様に重合をして、ポリシロキサン溶液(A-32)を得た。得られたポリシロキサン溶液(A-32)の固形分濃度は38重量%、ポリシロキサンのMwは1,300であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
三口フラスコにジメチルジメトキシシランを3.01g(10mol%)、テトラメトキシシランを1.90g(5mol%)、メチルトリメトキシシランを6.81g(20mol%)、フェニルトリメトキシシランを29.74g(60mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を67.24g、DAAを58.35g仕込んだ。フラスコ内に空気を0.10L/minで流し、混合溶液を撹拌しながらオイルバスで40℃に加熱した。混合溶液をさらに撹拌しながら、水13.52gにリン酸0.447gを溶かしたリン酸水溶液を10分かけて添加した。添加終了後、40℃で30分間撹拌して、シラン化合物を加水分解させた。加水分解終了後、DAA6.48gに3-トリメトキシシリルプロピルコハク酸無水物3.28g(5mol%)を溶かした溶液を添加した。その後、バス温を70℃にして1時間撹拌した後、続いてバス温を110℃まで昇温した。昇温開始後、約1時間後に溶液の内温が100℃に到達し、そこから1~3時間加熱撹拌した(内温は95~105℃)。1~3時間加熱撹拌して得られた樹脂溶液を氷浴にて冷却した後、陰イオン交換樹脂及び陽イオン交換樹脂を、それぞれ樹脂溶液に対して2重量%加えて12時間撹拌した。撹拌後、陰イオン交換樹脂及び陽イオン交換樹脂をろ過して除去し、ポリシロキサン溶液(A-33)を得た。得られたポリシロキサン溶液(A-33)の固形分濃度は38重量%、ポリシロキサンのMwは1,400であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを3.01g(10mol%)、テトラメトキシシランを1.90g(5mol%)、メチルトリメトキシシランを6.81g(20mol%)、フェニルトリメトキシシランを29.74g(60mol%)、PL-3-PGME(21.0重量%のPGME溶液)を72.04g、DAAを58.35g、水を13.52g、リン酸を0.447g、DAAを6.48g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-34)を得た。得られたポリシロキサン溶液(A-34)の固形分濃度は40重量%、ポリシロキサンのMwは1,400であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-3-PGMEは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを3.01g(10mol%)、テトラメトキシシランを1.90g(5mol%)、メチルトリメトキシシランを6.81g(20mol%)、フェニルトリメトキシシランを29.74g(60mol%)、MA-ST-L(40.5重量%のMeOH溶液)を37.35g、DAAを58.35g、水を13.52g、リン酸を0.447g、DAAを6.48g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-35)を得た。得られたポリシロキサン溶液(A-35)の固形分濃度は40重量%、ポリシロキサンのMwは1,400であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、MA-ST-Lは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを3.01g(10mol%)、テトラメトキシシランを1.90g(5mol%)、メチルトリメトキシシランを6.81g(20mol%)、フェニルトリメトキシシランを29.74g(60mol%)、PL-3-PGME(21.0重量%のPGME溶液)を133.79g、DAAを75.86g、水を13.52g、リン酸を0.447g、DAAを8.43g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-36)を得た。得られたポリシロキサン溶液(A-36)の固形分濃度は44重量%、ポリシロキサンのMwは1,200であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-3-PGMEは無機粒子含有ポリシロキサンの重量に対して50重量%含まれる。
ジメチルジメトキシシランを9.02g(30mol%)、ジフェニルメトキシシランを6.11g(10mol%)、テトラメトキシシランを7.61g(20mol%)、フェニルトリメトキシシランを17.35g(35mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を66.01g、DAAを57.29g、水を12.84g、リン酸を0.434g、DAAを6.37g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-37)を得た。得られたポリシロキサン溶液(A-37)の固形分濃度は40重量%、ポリシロキサンのMwは1,500であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを9.02g(30mol%)、ジフェニルメトキシシランを6.11g(10mol%)、テトラメトキシシランを7.61g(20mol%)、フェニルトリメトキシシランを17.35g(35mol%)、PL-3-PGME(21.0重量%のPGME溶液)を70.73g、DAAを57.29g、水を12.84g、リン酸を0.434g、DAAを6.37g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-38)を得た。得られたポリシロキサン溶液(A-38)の固形分濃度は40重量%、ポリシロキサンのMwは1,500であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-3-PGMEは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを9.02g(30mol%)、ジフェニルメトキシシランを6.11g(10mol%)、テトラメトキシシランを7.61g(20mol%)、フェニルトリメトキシシランを17.35g(35mol%)、PL-3-PGME(21.0重量%のPGME溶液)を131.35g、DAAを74.47g、水を12.84g、リン酸を0.434g、DAAを8.27g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-39)を得た。得られたポリシロキサン溶液(A-39)の固形分濃度は42重量%、ポリシロキサンのMwは1,400であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-3-PGMEは無機粒子含有ポリシロキサンの重量に対して50重量%含まれる。
ジメチルジメトキシシランを3.01g(10mol%)、テトラメトキシシランを1.90g(5mol%)、メチルトリメトキシシランを10.22g(30mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を62.09g(50mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を78.50g、DAAを68.12g、水を13.52g、リン酸を0.247g、DAAを7.57g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-40)を得た。得られたポリシロキサン溶液(A-40)の固形分濃度は39重量%、ポリシロキサンのMwは1,300であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを3.01g(10mol%)、テトラメトキシシランを1.90g(5mol%)、メチルトリメトキシシランを10.22g(30mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を62.09g(50mol%)、PL-3-PGME(21.0重量%のPGME溶液)を84.10g、DAAを68.12g、水を13.52g、リン酸を0.247g、DAAを7.57g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-41)を得た。得られたポリシロキサン溶液(A-41)の固形分濃度は40重量%、ポリシロキサンのMwは1,300であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-3-PGMEは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを3.01g(10mol%)、テトラメトキシシランを1.90g(5mol%)、メチルトリメトキシシランを10.22g(30mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を62.09g(50mol%)、MA-ST-L(40.5重量%のMeOH溶液)を43.61g、DAAを68.12g、水を13.52g、リン酸を0.247g、DAAを7.57g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-42)を得た。得られたポリシロキサン溶液(A-42)の固形分濃度は40重量%、ポリシロキサンのMwは1,300であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、MA-ST-Lは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを3.01g(10mol%)、テトラメトキシシランを1.90g(5mol%)、メチルトリメトキシシランを10.22g(30mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を62.09g(50mol%)、PL-3-PGME(21.0重量%のPGME溶液)を52.06g、DAAを59.04g、水を13.52g、リン酸を0.247g、DAAを6.56g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-43)を得た。得られたポリシロキサン溶液(A-43)の固形分濃度は38重量%、ポリシロキサンのMwは1,600であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-3-PGMEは無機粒子含有ポリシロキサンの重量に対して25重量%含まれる。
ジメチルジメトキシシランを3.01g(10mol%)、テトラメトキシシランを1.90g(5mol%)、メチルトリメトキシシランを10.22g(30mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を62.09g(50mol%)、PL-3-PGME(21.0重量%のPGME溶液)を156.19g、DAAを88.56g、水を13.52g、リン酸を0.247g、DAAを9.84g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-44)を得た。得られたポリシロキサン溶液(A-44)の固形分濃度は42重量%、ポリシロキサンのMwは1,200であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-3-PGMEは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを9.02g(30mol%)、ジフェニルメトキシシランを6.11g(10mol%)、テトラメトキシシランを7.61g(20mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を43.46g(35mol%)、PL-2L-MA(22.5重量%のMeOH溶液)を76.49g、DAAを66.38g、水を12.84g、リン酸を0.239g、DAAを7.38g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-45)を得た。得られたポリシロキサン溶液(A-45)の固形分濃度は40重量%、ポリシロキサンのMwは1,500であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-2L-MAは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを9.02g(30mol%)、ジフェニルメトキシシランを6.11g(10mol%)、テトラメトキシシランを7.61g(20mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を43.46g(35mol%)、PL-3-PGME(21.0重量%のPGME溶液)を81.96g、DAAを66.38g、水を12.84g、リン酸を0.239g、DAAを7.38g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-46)を得た。得られたポリシロキサン溶液(A-46)の固形分濃度は41重量%、ポリシロキサンのMwは1,500であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-3-PGMEは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを9.02g(30mol%)、ジフェニルメトキシシランを6.11g(10mol%)、テトラメトキシシランを7.61g(20mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を43.46g(35mol%)、MA-ST-L(40.5重量%のMeOH溶液)を42.50g、DAAを66.38g、水を12.84g、リン酸を0.239g、DAAを7.38g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-47)を得た。得られたポリシロキサン溶液(A-47)の固形分濃度は41重量%、ポリシロキサンのMwは1,500であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、MA-ST-Lは無機粒子含有ポリシロキサンの重量に対して35重量%含まれる。
ジメチルジメトキシシランを9.02g(30mol%)、ジフェニルメトキシシランを6.11g(10mol%)、テトラメトキシシランを7.61g(20mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を43.46g(35mol%)、PL-3-PGME(21.0重量%のPGME溶液)を50.74g、DAAを57.53g、水を12.84g、リン酸を0.239g、DAAを6.39g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-48)を得た。得られたポリシロキサン溶液(A-48)の固形分濃度は39重量%、ポリシロキサンのMwは1,800であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-3-PGMEは無機粒子含有ポリシロキサンの重量に対して25重量%含まれる。
ジメチルジメトキシシランを9.02g(30mol%)、ジフェニルメトキシシランを6.11g(10mol%)、テトラメトキシシランを7.61g(20mol%)、1-ナフチルトリメトキシシラン(50重量%のIPA溶液)を43.46g(35mol%)、PL-3-PGME(21.0重量%のPGME溶液)を152.21g、DAAを86.30g、水を12.84g、リン酸を0.239g、DAAを9.59g、3-トリメトキシシリルプロピルコハク酸無水物を3.28g(5mol%)使用し、合成例33と同様に重合をして、ポリシロキサン溶液(A-49)を得た。得られたポリシロキサン溶液(A-49)の固形分濃度は41重量%、ポリシロキサンのMwは1,400であった。このポリシロキサンは無機粒子含有ポリシロキサンであり、PL-3-PGMEは無機粒子含有ポリシロキサンの重量に対して50重量%含まれる。
乾燥窒素気流下、フラスコにPh-cc-APを15.32g(0.05mol)、5-ナフトキノンジアジドスルホン酸クロリドを37.62g(0.14mol)秤量し、1,4-ジオキサン450gに溶解させて室温にした。ここに、1,4-ジオキサン50gとトリエチルアミン15.58g(0.154mol)の混合溶液を、系内が35℃以上にならないように撹拌しながら滴下した。滴下終了後、混合溶液を30℃で2時間撹拌した。撹拌後、析出したトリエチルアミン塩をろ過によって除去した後、ろ液を水に投入して撹拌し、析出した固体沈殿をろ過して得た。得られた固体を減圧乾燥によって乾燥させ、下記構造のナフトキノンジアジド構造を有する化合物(QD-1)を得た。
フラスコにAIBNを0.821g(1mol%)、PGMEAを121.49g仕込んだ。次に、メタクリル酸メチルを10.01g(20mol%)、メタクリル酸を12.91g(30mol%)、メタクリル酸2-[2-(2-メトキシ)エトキシ]エトキシエチルを58.07g(50mol%)仕込み、室温でしばらく撹拌して、フラスコ内をバブリングによって十分に窒素置換した後、70℃で5時間加熱撹拌して、アクリル樹脂溶液(AC-1)を得た。得られたアクリル樹脂溶液(AC-1)に、固形分濃度が35重量%になるようにPGMEAを添加した。アクリル樹脂のMwは13,000であった。
フラスコにAIBNを0.821g(1mol%)、PGMEAを27.11g仕込んだ。次に、メタクリル酸メチルを5.01g(10mol%)、メタクリル酸を17.22g(40mol%)、メタクリル酸2-ヒドロキシエチルを32.54g(50mol%)仕込み、室温でしばらく撹拌して、フラスコ内をバブリングによって十分に窒素置換した後、70℃で5時間加熱撹拌した。次に、得られた溶液にSR-8EGSを54.47g(20mol%)、ジメチルベンジルアミンを0.676g(1mol%)、4-メトキシフェノールを0.186g(0.3mol%)、PGMEAを55.03g添加し、90℃で4時間加熱撹拌して、アクリル樹脂溶液(AC-2)を得た。得られたアクリル樹脂溶液(AC-2)に、固形分濃度が35重量%になるようにPGMEAを添加した。アクリル樹脂のMwは20,000であった。
重量を測定したアルミカップに樹脂溶液を1g秤量し、ホットプレート(HP-1SA;アズワン(株)製)を用いて250℃で30分間加熱して蒸発乾固させた。加熱後、固形分が残存したアルミカップの重量を測定し、加熱前後の重量の差分から残存した固形分の重量を算出し、樹脂溶液の固形分濃度を求めた。
GPC分析装置(HLC-8220;東ソー(株)製)を用い、流動層としてTHF又はNMPを用いてGPC測定を行い、ポリスチレン換算により求めた。
電位差自動滴定装置(AT-510;京都電子工業(株)製)を用い、滴定試薬として0.1mol/LのNaOH/EtOH溶液を用いて、「JIS K2501(2003)」に基づき、電位差滴定法により、酸価を測定して算出した。
「JIS K0070(1992)」に基づき、樹脂のヨウ素価を測定して算出した。
29Si-NMRの測定を行い、オルガノシラン由来のSi全体の積分値に対する、特定のオルガノシラン単位由来のSiの積分値の割合を算出して、それらの含有比率を計算した。試料(液体)は、直径10mm の“テフロン”(登録商標)製NMRサンプル管に注入して測定に用いた。29Si-NMR測定条件を以下に示す。
測定法:ゲーテッドデカップリング法
測定核周波数:53.6693MHz(29Si核)
スペクトル幅:20000Hz
パルス幅:12μs(45°パルス)
パルス繰り返し時間:30.0秒
溶媒:アセトン-d6
基準物質:テトラメチルシラン
測定温度:23℃
試料回転数:0.0Hz。
Siウェハ((株)エレクトロニクス エンド マテリアルズ コーポレーション製)及び4H-SiCウェハ(東レ・ダウコーニング(株)製)は、ホットプレート(HP-1SA;アズワン(株)製)を用いて、130℃で2分間加熱して脱水ベーク処理をし、次いで、HMDS処理装置(関西ティーイーケィ(株)製)を用いて、100℃で50秒間、HMDSによる表面疎水化処理をして使用した。単層Crをスパッタにより成膜したガラス基板(単層Cr成膜基板;(株)倉元製作所製、以下、「Cr基板」)は、前処理をせずに使用した。
光干渉式膜厚測定装置(ラムダエース VM-1030;大日本スクリーン製造(株)製)を用いて、屈折率を1.55に設定して測定した。
現像時の未露光部の膜厚減少値は、以下の式に従って算出した。
未露光部の膜厚減少値=現像前の未露光部の膜厚値-現像後の未露光部の膜厚値。
下記、実施例1記載の方法で、両面アライメント片面露光装置(マスクアライナー PEM-6M;ユニオン光学(株)製)を用いて、感度測定用のグレースケールマスク(MDRM MODEL 4000-5-FS;Opto-Line International製)を介して、超高圧水銀灯のi線(波長365nm)、h線(波長405nm)及びg線(波長436nm)でパターニング露光した後、フォトリソ用小型現像装置(AD-2000;滝沢産業(株)製)を用いて現像し、組成物の現像後膜を作製した。FPD検査顕微鏡(MX-61L;オリンパス(株)製)を用いて、作製した現像後膜の解像パターンを観察し、30μmのライン・アンド・スペースパターンを1対1の幅に形成する露光量(i線照度計の値)をEth感度とした。
上記(9)記載の方法で、露光及び現像を行い、組成物の現像後膜を作製した。FPD検査顕微鏡(MX-61L;オリンパス(株)製)及び電界放出型走査電子顕微鏡(S-4800;(株)日立ハイテクノロジーズ製)を用いて、作製した硬化膜の解像パターンを観察し、残渣が無く得られた最小パターン寸法の、ライン・アンド・スペースパターンを1対1の幅に形成する露光量(i線照度計の値)をEop感度とした。
下記、実施例1記載の方法で、高温イナートガスオーブン(INH-9CD-S;光洋サーモシステム(株)製)を用いて、組成物の硬化膜を作製した。熱硬化条件は、窒素気流下、50℃で30分間保持してオーブン内を窒素パージし、次に昇温速度10℃/minで450℃まで昇温させ、450℃で30分間熱硬化させ、組成物の硬化膜を作製した。
下記、実施例1記載の方法で、縮小投影型露光装置(i線ステッパー NSR-2005i9C;(株)ニコン製)を用いてパターニング露光し、フォトリソ用小型現像装置(AD-2000;滝沢産業(株)製)を用いて現像した後、高温イナートガスオーブン(INH-9CD-S;光洋サーモシステム(株)製)を用いて、組成物の硬化膜を作製した。FPD検査顕微鏡(MX-61L;オリンパス(株)製)及び電界放出型走査電子顕微鏡(S-4800;(株)日立ハイテクノロジーズ製)を用いて、作製した硬化膜の解像パターンを観察した。露光時間を変えて、前記のように露光、現像及び熱硬化を行い、残渣が無く得られたドットパターン又はライン・アンド・スペースパターンの最小パターンの寸法を解像度とした。
表5-1記載の、実施例22において得られた、2μmのドットパターンのSEM写真を図5に示す。また、表9-1記載の、実施例63において得られた、1μmのライン・アンド・スペースパターンのSEM写真を図6に示す。
下記、実施例1記載の方法で、縮小投影型露光装置(i線ステッパー NSR-2005i9C;(株)ニコン製)を用いてパターニング露光し、フォトリソ用小型現像装置(AD-2000;滝沢産業(株)製)を用いて現像し、組成物の現像後膜を作製した。FPD検査顕微鏡(MX-61L;オリンパス(株)製)及び電界放出型走査電子顕微鏡(S-4800;(株)日立ハイテクノロジーズ製)を用いて、残渣が無く得られた最小パターン寸法の、ライン・アンド・スペースパターンの解像パターンを観察し、Eop感度の露光量でのパターン寸法幅を測定した。Eop感度の露光量(露光時間)から変えて露光、及び現像を行い、同様に解像パターンを観察してパターン寸法幅を測定した。Eop感度の露光量から、50mJ/cm2小さい露光量でのパターン寸法幅を(A)、Eop感度の露光量から、50mJ/cm2小大きい露光量でのパターン寸法幅を(B)として、以下の式に従って、パターン寸法幅変化を算出した。
パターン寸法幅変化=(B)-(A)。
下記、実施例1記載の方法で、Cr基板上に組成物の硬化膜を作製した。作製した硬化膜を基板から削りとり、アルミセルに約10mg入れた。このアルミセルを、熱重量測定装置(TGA-50;(株)島津製作所製)を用い、窒素雰囲気中、30℃にて10分間保持した後、昇温速度10℃/minで800℃まで昇温しながら熱重量分析を行った。重量減少が1%となる、1%重量減少温度(Td1%)を測定し、それぞれの温度Td1%を比較した。Td1%が高いほど、耐熱性が良好であることを示す。
下記、実施例1記載の方法で、高温イナートガスオーブン(INH-9CD-S;光洋サーモシステム(株)製)を用いて、表7~10に記載されている、下記(16)記載のイオン注入時における耐クラック膜厚と同じ膜厚で組成物の硬化膜を作製した。熱硬化温度は450℃で組成物の硬化膜を作製した。熱硬化後、硬化膜を作製した基板に、イオン注入装置(MODEL 2100 Ion Implanter;Veeco製)を用いて、以下の条件でイオン注入を行った。
イオン注入温度:400℃
加速エネルギー量:300keV
イオンドーズ量:1.0E+14ions/cm2
真空度:2.0E-6Torr。
下記、実施例1記載の方法で、高温イナートガスオーブン(INH-9CD-S;光洋サーモシステム(株)製)を用いて、1.0~3.0μmまでの膜厚でSiウェハ上に組成物の硬化膜を作製した。熱硬化温度は450℃で組成物の硬化膜を作製した。熱硬化後、上記(15)記載の方法で、硬化膜を作製した基板にイオン注入を行った。イオン注入後、硬化膜表面におけるクラック発生の有無を、FPD検査顕微鏡(MX-61L;オリンパス(株)製)を用いて観察した。クラックが発生しなかった硬化膜の最大膜厚値をイオン注入時における耐クラック膜厚(以下、「イオン注入耐クラック膜厚」)とし、それぞれのイオン注入耐クラック膜厚を比較した。イオン注入耐クラック膜厚が大きいほど、イオン注入時における耐クラック性が良好であることを示す。イオン注入耐クラック膜厚が、1.0μm以上のものを合格とした。イオン注入耐クラック膜厚が、1.65μm以上のものが、イオン注入マスクレジストとして優秀である。
下記、実施例1記載の方法で、高温イナートガスオーブン(INH-9CD-S;光洋サーモシステム(株)製)を用いて、組成物の硬化膜を作製した。熱硬化温度は450℃で組成物の硬化膜を作製した。熱硬化後、硬化膜を作製した基板に、イオン注入装置(MODEL 2100 Ion Implanter;Veeco製)を用いて、上記(15)と同様の条件でイオン注入を行った。
下記、実施例1記載の方法で、高温イナートガスオーブン(INH-9CD-S;光洋サーモシステム(株)製)を用いて、1.0μmの膜厚で組成物の硬化膜を作製した。熱硬化温度は450℃で組成物の硬化膜を作製した。熱硬化後、硬化膜を作製した基板に、横型拡散炉(MODEL 208;光洋サーモシステム(株)製)を用いて、以下の条件でドーパント暴露を行った。
ドーパント暴露温度:800℃
ドーパント暴露時間:30分。
下記、実施例1記載の方法で、高温イナートガスオーブン(INH-9CD-S;光洋サーモシステム(株)製)を用いて、表7~10記載の膜厚で組成物の硬化膜を作製した。熱硬化温度は450℃で組成物の硬化膜を作製した。熱硬化後、硬化膜を作製した基板を、ハイスループットアッシング・エッチング装置(MAS-8220AT;キヤノン(株)製)を用いて、以下の条件にてドライエッチングで処理した。
RF電力:300W
エッチング温度:200℃
エッチング時間:30秒
処理圧力:20Pa
ガス流量:50sccm。
下記、実施例1記載の方法で、高温イナートガスオーブン(INH-9CD-S;光洋サーモシステム(株)製)を用いて、表7~10記載の膜厚で組成物の硬化膜を作製した。熱硬化温度は450℃で組成物の硬化膜を作製した。熱硬化後、硬化膜を作製した基板を、以下の条件にてウェットエッチングで処理をした。
エッチング温度:100℃
エッチング時間:300秒
リンス液:水
リンス時間:120秒。
下記、実施例1記載の方法で、組成物の硬化膜を作製し、上記(15)、(18)、(19)及び(20)記載の方法で、硬化膜を作製した基板にイオン注入、ドーパント暴露、ドライエッチング及びウェットエッチングからなる群から選ばれる一種以上の処理をした。
処理温度:23℃
処理時間:300秒
リンス液:水
リンス時間:120秒。
黄色灯下、PAI-101を0.333g秤量し、DAAを0.823g、PGMEAを6.300g添加し、撹拌して溶解させた。次に、合成例1で得られたポリシロキサン溶液(A-1)を17.544g添加して撹拌し、均一溶液とした。その後、得られた溶液を0.2μmのフィルターでろ過し、組成物1を調製した。
実施例1と同様に、組成物2~91を表4-1~表11-1に記載の組成にて調製した。得られた各組成物を用いて、実施例1と同様に、基板上に組成物を成膜し、感光特性及び硬化膜の特性の評価を行った。それらの評価結果を、まとめて表4-2~表11-2に示す。
黄色灯下、合成例50で得られたナフトキノンジアジド構造を有する化合物(QD-1)を0.578g秤量し、DAAを1.932g、PGMEAを7.200g添加し、撹拌して溶解させた。次に、合成例44で得られたポリシロキサン溶液(A-44)を15.291g添加して撹拌し、均一溶液とした。その後、得られた溶液を0.2μmのフィルターでろ過し、組成物70を調製した。
実施例1と同様に、組成物70を表12-1に記載の組成にて調製した。得られた組成物70を用いて、実施例92と同様に、基板上に組成物を成膜し、感光特性及び硬化膜の特性の評価を行った。それらの評価結果を、まとめて表12-2に示す。
2 ポリシロキサン膜
2a ポリシロキサンパターン
3 マスク
4 活性化学線
5 イオン
6 不純物領域
7 炭化ケイ素半導体基板
7a 炭化ケイ素半導体基板
7b 炭化ケイ素半導体基板
8 ポリシロキサン膜
8a ポリシロキサンパターン
9 マスク
10 活性化学線
11 パターン
12a ポリシロキサンパターン
13 イオン
14 不純物領域
15 変質層
Claims (23)
- (A)ポリシロキサン、を含有する感光性樹脂組成物であり、
前記(A)ポリシロキサンが、一般式(1)で表されるポリシロキサンであり、
前記(A)ポリシロキサンに占める、一般式(2)で表されるオルガノシラン単位の含有比率が、Si原子mol比で(X)mol%、及び一般式(3)で表されるオルガノシラン単位の含有比率が、Si原子mol比で(Y)mol%であり、
(一般式(3)において、R7及びR8は、それぞれ独立して、水素、アルキル基、アシル基、アリール基、ポリシロキサンのポリマー鎖又は一般式(7)で表される置換基を表す。) (X)及び(Y)が、一般式(4)~(6)で表されることを特徴とする、感光性樹脂組成物。
7.5≦(X)≦75 (4)
2.5≦(Y)≦40 (5)
1.5×(Y)≦(X)≦3×(Y) (6) - 前記(A)ポリシロキサンの重量平均分子量が、500~100,000である、請求項1記載の感光性樹脂組成物。
- 前記(A)ポリシロキサンが、芳香族基を有するオルガノシラン単位を含有し、前記(A)ポリシロキサンに占める、前記芳香族基を有するオルガノシラン単位の含有比率が、Si原子mol比で15~80mol%である、請求項1又は2記載の感光性樹脂組成物。
- 前記芳香族基を有するオルガノシラン単位が、一般式(4a)で表されるオルガノシラン単位、一般式(4b)で表されるオルガノシラン単位及び一般式(4c)で表されるオルガノシラン単位からなる群から選ばれる一種以上である、請求項3記載の感光性樹脂組成物。
(一般式(4b)において、R62及びR63は、炭素数1~10のアルキル基、炭素数4~10のシクロアルキル基、炭素数2~7のアルケニル基又は炭素数6~15のアリール基を表す。qは、0~7の整数を表し、wは、1~2の整数を表し、xは、0~1の整数を表し、w+x=2である。)
(一般式(4c)において、R64及びR65は、炭素数1~10のアルキル基、炭素数4~10のシクロアルキル基、炭素数2~7のアルケニル基又は炭素数6~15のアリール基を表す。rは、0~7の整数を表し、yは、1~3の整数を表し、zは、0~2の整数を表し、y+z=3である。) - さらに、(F)溶解促進架橋剤を含有し、前記(F)溶解促進架橋剤が、一般式(14)で表される化合物、一般式(15)で表される化合物及び一般式(16)で表される化合物からなる群から選ばれる一種以上である、請求項1~4のいずれか一項記載の感光性樹脂組成物。
(一般式(15)において、R39は、炭素数1~10のアルキル基、炭素数4~10のシクロアルキル基又は炭素数6~15のアリール基を表し、R40及びR41は、それぞれ独立して、水素又は炭素数1~6のアルキル基を表す。eは、0~3の整数を表す。)
(一般式(16)において、X17及びX18は、それぞれ独立して、直接結合又は炭素数1~6のアルキレン鎖を表し、R65~R67は、それぞれ独立して、炭素数1~10のアルキル基、炭素数4~10のシクロアルキル基又は炭素数6~15のアリール基を表し、R68及びR69は、それぞれ独立して、水素又は炭素数1~6のアルキル基を表し、R70及びR71は、それぞれ独立して、水素、炭素数1~6のアルキル基、炭素数1~6のアルコキシ基又はヒドロキシ基を表す。X11及びX12は、それぞれ独立して、直接結合又は炭素数1~6のアルキレン鎖を表す。X11が、直接結合の場合、f、g、p及びqは0である。X12が、直接結合の場合、h、i、r及びsは、0である。X11又はX12が、直接結合でない場合、X13、X14、X15及びX16は、それぞれ独立して、直接結合又は炭素数1~6のアルキレン鎖を表し、R61~R64は、それぞれ独立して、水素、炭素数1~6のハロゲン化アルキル基又はハロゲン原子を表す。また、j、k及びlは、0~2の整数を表す。X11及びX12が、直接結合でない場合、p、q、r及びsは、1であり、f、g、h及びiは、1~6の整数を表す。) - (X)及び(Y)が、一般式(4’)~(6’)で表されることを特徴とする、請求項1~5のいずれか一項記載の感光性樹脂組成物。
24≦(X)≦75 (4’)
8≦(Y)≦40 (5’)
1.5×(Y)≦(X)≦3×(Y) (6’) - さらに、(B)無機粒子を含有する、請求項1~6のいずれか一項記載の感光性樹脂組成物。
- 前記(B)無機粒子がシリカ粒子である、請求項7記載の感光性樹脂組成物。
- 前記(A)ポリシロキサンが、前記(B)無機粒子が結合したオルガノシラン単位を有する、(A1)無機粒子含有ポリシロキサンである、請求項7又は8記載の感光性樹脂組成物。
- さらに、(C)ナフトキノンジアジド構造を有する化合物、(D)光重合開始剤、(E1)光酸発生剤及び(E2)光塩基発生剤からなる群から選ばれる一種以上を含有する、請求項1~9のいずれか一項記載の感光性樹脂組成物。
- さらに、(G)溶解促進剤を含有し、前記(G)溶解促進剤が、(G1)一般式(17)で表される化合物又は一般式(18)で表される化合物、及び/又は、(G2)一般式(19)で表される構造単位を有するアクリル樹脂である、請求項1~10のいずれか一項記載の感光性樹脂組成物。
(一般式(18)において、X7は、直接結合、炭素数1~10のアルキレン鎖、炭素数4~10のシクロアルキレン鎖又は炭素数6~15のアリーレン鎖を表し、X8及びX9は、それぞれ独立して、炭素数1~6のアルキレン鎖を表し、Y4は、直接結合又は酸素原子を表し、R45及びR46は、それぞれ独立して、水素、炭素数1~6のアルキル基、炭素数2~6のアシル基又は炭素数6~15のアリール基を表す。gは、0~2の整数を表す。)
(一般式(19)において、R47及びR48は、水素又は炭素数1~4のアルキル基を表し、R49及びR50は、一般式(20)で表される構造単位を有する、炭素数1~6のアルキル基、炭素数4~7のシクロアルキル基又は炭素数6~10のアリール基を表し、X10は直接結合、炭素数1~6のアルキレン鎖、炭素数4~7のシクロアルキレン鎖又は炭素数6~10のアリーレン鎖を表す。)
- 前記(A)ポリシロキサンが、酸性基を有するオルガノシラン単位を含有するポリシロキサンである、請求項1~11のいずれか一項記載の感光性樹脂組成物。
- 前記(B)無機粒子の数平均粒子径が、20~55nmである、請求項7~12のいずれか一項記載の感光性樹脂組成物。
- (A)ポリシロキサン、を含有する感光性樹脂組成物であり、
前記(A)ポリシロキサンが、オルガノシランを加水分解し、縮合させることによって得られるポリシロキサンであり、前記オルガノシランが、一般式(21)で表されるオルガノシラン及び一般式(22)で表されるオルガノシランを含み、
(一般式(22)において、R57~R60は、それぞれ独立して、水素、アルキル基、アシル基又はアリール基を表す。qは、1~10の整数を表す。)
前記(A)ポリシロキサンに占める、一般式(2)で表されるオルガノシラン単位の含有比率が、Si原子mol比で(X)mol%、及び一般式(3)で表されるオルガノシラン単位の含有比率が、Si原子mol比で(Y)mol%であり、
(一般式(3)において、R7及びR8は、それぞれ独立して、水素、アルキル基、アシル基、アリール基、ポリシロキサンのポリマー鎖又は一般式(7)で表される置換基を表す。)
前記(A)ポリシロキサンに占める、一般式(2)で表されるオルガノシラン単位の含有比率が、Si原子mol比で(X)mol%、及び一般式(3)で表されるオルガノシラン単位の含有比率が、Si原子mol比で(Y)mol%であり、
(X)及び(Y)が、一般式(4)~(6)で表されることを特徴とする、感光性樹脂組成物。
7.5≦(X)≦75 (4)
2.5≦(Y)≦40 (5)
1.5×(Y)≦(X)≦3×(Y) (6) - 請求項1~14のいずれか一項記載の感光性樹脂組成物を硬化した硬化膜。
- 請求項1~14のいずれか一項記載の感光性樹脂組成物を硬化した硬化膜を具備する素子。
- 請求項1~14のいずれか一項記載の感光性樹脂組成物を硬化した硬化膜を具備する半導体装置。
- (1)基板上に、請求項1~14のいずれか一項記載の感光性樹脂組成物又はその硬化物のパターンを得る工程、
(2)前記パターンが形成された基板に不純物領域を形成する工程及び/又は前記パターンが形成された基板をパターン加工する工程、
(3)前記パターンを除去する工程、を有する半導体装置の製造方法であり、
前記(2)の工程として、
(2-A)前記パターンが形成された基板にイオン注入する工程、
(2-B)前記パターンが形成された基板にドーパント暴露する工程、
(2-C)前記パターンが形成された基板を、ドライエッチングでパターン加工する工程、
(2-D)前記パターンが形成された基板を、ウェットエッチングでパターン加工する工程、からなる群から選ばれる一種以上の工程を有する、半導体装置の製造方法。 - 前記(1)の工程として、(1-1)前記感光性樹脂組成物のパターンを150~1,500℃に加熱する工程を有する、請求項18記載の半導体装置の製造方法。
- 前記(2)の工程として、
(2-A1)前記パターンが形成された基板を200~1,000℃に加熱しながら、前記基板にイオン注入する工程、
(2-B1)前記パターンが形成された基板を200~1,500℃に加熱しながら、前記基板にドーパント暴露する工程、
(2-C1)前記パターンが形成された基板を100~400℃に加熱しながら、ドライエッチングでパターン加工する工程、
(2-D1)前記パターンが形成された基板を100~400℃に加熱しながら、ウェットエッチングでパターン加工する工程、からなる群から選ばれる一種以上を有する、請求項18又は19記載の半導体装置の製造方法。 - 前記(1-1)の工程が、(1-1a)前記感光性樹脂組成物のパターンを500~1,500℃に加熱する工程である、請求項19又は20記載の半導体装置の製造方法。
- 前記(3)の工程が、(3-A)前記パターンを0~300℃未満で処理する工程からなる、請求項18記載の半導体装置の製造方法。
- 前記基板が、ケイ素、二酸化ケイ素(SiO2)、窒素ケイ素(Si3N4)、炭化ケイ素(SiC)、窒化ガリウム(GaN)、リン化ガリウム(GaP)、ヒ化ガリウム(GaAs)、ヒ化ガリウムアルミニウム(GaAlAs)、ガリウムインジウム窒素ヒ素(GaInNAs)、窒化インジウム(InN)、リン化インジウム(InP)、酸化インジウムスズ(ITO)、酸化インジウム亜鉛(IZO)、ヒ化インジウムガリウム(InGaAs)、インジウムガリウムアルミニウムリン(InGaAlP)、酸化インジウムガリウム亜鉛(IGZO)、ダイヤモンド、サファイア(Al2O3)、酸化アルミニウム亜鉛(AZO)、窒化アルミニウム(AlN)、酸化亜鉛(ZnO)、セレン化亜鉛(ZnSe)、硫化カドミウム(CdS)及びテルル化カドミウム(CdTe)からなる群から選ばれる一種以上を有する基板である、請求項18~22のいずれか一項記載の半導体装置の製造方法。
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TW201616239A (zh) | 2016-05-01 |
KR102443985B1 (ko) | 2022-09-16 |
EP3203320A1 (en) | 2017-08-09 |
TWI679500B (zh) | 2019-12-11 |
KR20170063558A (ko) | 2017-06-08 |
CN107077070A (zh) | 2017-08-18 |
US10409163B2 (en) | 2019-09-10 |
EP3203320A4 (en) | 2018-06-20 |
US20170285477A1 (en) | 2017-10-05 |
JPWO2016052268A1 (ja) | 2017-07-13 |
EP3203320B1 (en) | 2019-10-23 |
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EP3203320B9 (en) | 2020-05-06 |
CN107077070B (zh) | 2020-06-16 |
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