WO2005040921A1 - 電子線又はeuv用レジスト組成物 - Google Patents
電子線又はeuv用レジスト組成物 Download PDFInfo
- Publication number
- WO2005040921A1 WO2005040921A1 PCT/JP2004/015503 JP2004015503W WO2005040921A1 WO 2005040921 A1 WO2005040921 A1 WO 2005040921A1 JP 2004015503 W JP2004015503 W JP 2004015503W WO 2005040921 A1 WO2005040921 A1 WO 2005040921A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- structural unit
- euv
- resist composition
- electron beam
- Prior art date
Links
Classifications
-
- G—PHYSICS
- 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
- G03F7/004—Photosensitive materials
- G03F7/0048—Photosensitive materials characterised by the solvents or agents facilitating spreading, e.g. tensio-active agents
-
- G—PHYSICS
- 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
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
-
- G—PHYSICS
- 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
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
- G03F7/0397—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition the macromolecular compound having an alicyclic moiety in a side chain
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
- Y10S430/106—Binder containing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
- Y10S430/114—Initiator containing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
- Y10S430/114—Initiator containing
- Y10S430/118—Initiator containing with inhibitor or stabilizer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
- Y10S430/114—Initiator containing
- Y10S430/12—Nitrogen compound containing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/143—Electron beam
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/146—Laser beam
Definitions
- the present invention relates to a resist composition for electron beam or EUV (Extreme Ultraviolet: wavelength of about 13.5 nm) exposed in vacuum and a method of forming a resist pattern.
- EUV Extreme Ultraviolet: wavelength of about 13.5 nm
- UV rays represented by g-line and i-line have been used in the past, but now the KrF excimer laser (248 nm) has entered the mass production period, and mass production of ArF (193 nm) has begun. I have.
- one of the resist materials that satisfies the condition of high resolution that can reproduce patterns of fine dimensions contains a base resin whose alkali solubility changes by the action of acid and an acid generator that generates acid by exposure.
- a chemically amplified resist composition is known!
- the chemically amplified resist composition includes a negative type containing an acid generator, a crosslinking agent, and an alkali-soluble resin as a base resin, and a resin whose alkali solubility increases due to the action of an acid generator and an acid. There is a positive type contained.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-177537
- Patent Document 2 JP 2003-140361 A
- Patent Document 3 JP-A-2003-75998
- the inventors of the present invention have examined this fact, and have found that the above problem is caused by contamination of the mirror and the mask during repeated exposure.
- the present invention has been made to solve the above-mentioned problems, and is directed to a resist composition and a resist capable of preventing contamination in an exposure apparatus by a lithography process using an electron beam or EUV. It is an object to provide a pattern forming method.
- the present invention has the following configurations.
- PGME propylene glycol monomethyl ether
- MAK methyl amyl ketone
- BuOAc butyl acetate
- MMP 3-methylmethoxypropionate
- An electron beam or EUV resist composition characterized in that an organic solvent containing as a component is used as a resist solvent.
- the second aspect (aspect) is to apply the electron beam or EUV resist composition of the first aspect (aspect) onto a substrate, pre-beta, and selectively expose or expose the electron beam or EUV in a vacuum.
- This is a method of forming a resist pattern in which PEB (post-exposure baking) is applied after drawing, and a resist pattern is formed by alkali development.
- FIG. 1 is a graph showing a change in film thickness with respect to a heating temperature obtained in Examples and Comparative Examples.
- the resist composition of the present invention contains at least one selected from the group consisting of propylene glycol monomethyl ether (PGME), methyl amyl ketone (MAK), butyl acetate (BuOAc), and 3-methylmethoxypropionate (MMP).
- PGME propylene glycol monomethyl ether
- MAK methyl amyl ketone
- BuOAc butyl acetate
- MMP 3-methylmethoxypropionate
- a compound (A) having an acid dissociable, dissolution inhibiting group in addition to the resist solvent, a compound (A) having an acid dissociable, dissolution inhibiting group, (B) an acid generator, etc. Regardless of what the ingredients are, the objective is achieved.
- PGMEA propylene glycol monomethyl ether acetate
- EL ethyl lactate
- MMP 3-methylmethoxypropionate
- At least one of the above-mentioned propylene glycol monomethyl ether (PGME), methylamyl ketone (MAK), butyl acetate (BuOAc), and 3-methylmethoxypropionate (MMP) powers has a ratio of 70% by mass or more. It is preferably at least 80% by mass, more preferably at least 90% by mass.
- the amount of the organic solvent used in the resist composition is not particularly limited, but the concentration is such that it can be applied to a substrate or the like, generally the solid content of the resist composition is 2 to 20% by mass, preferably 5 to 15% by mass. %.
- the resist composition satisfy the following condition (I) and satisfy the first condition! /! /.
- the film thickness (1) is obtained by coating a resist composition on a substrate to a film thickness of 2300 A ⁇ 10% and heating at 130 ° C for 90 seconds; ) Indicates the film thickness after applying the resist composition on a substrate to a film thickness of 2300 A ⁇ 10% and heating at 150 ° C. for 90 seconds.
- Expression (I) shows the slope of the change in film thickness with respect to temperature. As this value is smaller, the amount of change in film thickness when heated in the range of 130 to 150 ° C is larger. Indicates small.
- the value on the left side is 0.2 (AZ ° C) or less, preferably 0.15 (AZ ° C) or less, and more preferably 0.1 KAZ ° C or less. Since this value is preferably as small as possible, there is no technical significance in defining the lower limit.
- the heating at the temperature of 130 ° C and 150 ° C takes into consideration the temperature condition of the pre-beta in the electron beam or EUV lithography.
- the reason for setting the temperature to 150 ° C or lower is the upper limit of the heating device used for the pre-beta or the operational upper limit.
- the heating conditions in the method for forming a resist pattern described later are not limited to the range of 130 to 150 ° C. However, if the heating conditions are within this range, stable exposure can be achieved. It is preferable from the viewpoint of obtaining a proper resist pattern, the apparatus, and the operation.
- the resist film becomes stable against changes in the environment such as temperature and pressure during pre-beta, and then the electron beam or EUV is used. It is presumed that even when exposure (including both selective exposure and drawing) is performed, no contaminants are generated from the resist film, and contamination in the exposure apparatus can be prevented. As a result, stable exposure becomes possible.
- the reason for setting the film thickness to 2300 A ⁇ 10% is based on the film thickness used in a process using an electron beam or EUV.
- the value of ⁇ 10% is a force that can cope with the criterion determined by the formula (I) when the measurement error is considered and within this range.
- the reason why the heating time is set to 90 seconds is based on the pre-beta condition in a normal lithography process.
- the second condition is that the variation of the total pressure of the atmosphere inside the exposure system of the before and after exposure, 4. is that less than 0 X 10- 5 Pa. Exposure with an electron beam or EUV is performed in a vacuum as described above. However, when exposure is performed, the pressure in the exposure system increases due to the generation of contaminants.
- the variation of the total pressure is preferably 3. 5 X 10- 5 Pa or less, still more 3. Ru Der below 3 X 10- 5 Pa. Since this value is preferably as small as possible, there is no technical significance in defining the lower limit. Particularly future manner, since it is reduced to the level of 10- 7 Pa or 10- 8 Pa is quite possible, includes such ultra-low levels.
- the total pressure refers to a pressure in a chamber where a substrate on which a resist film of a resist composition is formed in an exposure apparatus system is installed and the pressure is adjusted to a vacuum condition during exposure.
- a small change in the total pressure before and after exposure means that the substance in the resist composition is hard to be released into the atmosphere during exposure, that is, hard to gasify. I do.
- the second condition it is possible to prevent the mirror and the mask from being contaminated by a substance released into the atmosphere during exposure.
- the conditions for measuring the amount of change in the total pressure are as follows. This condition is based on EU This is a standard condition for exposure in a device that generates V and the like. In the future, the degree of vacuum may increase further. At present, the object of the present invention can be sufficiently achieved if the numerical range of the variation can be satisfied under these conditions. Exposure conditions: Temperature: room temperature (2 5 ° C), Himeji Institute of Technology - Yusubaru radiation optical property, pressure: 1 X 10- 7 - 1 X 10- 5 Pa, good Mashiku is 1 X 10- of 6 Pa, the heat storage ring Current value: 200 mA, exposure wavelength: 13.5 nm, exposure time: 60 seconds, interval, resist film thickness: 100 nm.
- the “change amount of the total pressure of the atmosphere in the exposure system before and after exposure” in the second condition can be obtained by taking the difference between them. That is, it can be obtained by obtaining the pressure in the system after exposure and subtracting the pressure immediately before exposure.
- the first condition and the second condition are both satisfied.
- the other composition of the resist composition of the present invention is not particularly limited.
- the (A) acid It contains a compound having a dissociable, dissolution inhibiting group, and (B) an acid generator.
- those usually used for chemically amplified resists can be used alone or in combination of two or more.
- component (A) a high molecular compound such as the following (A-1) resin, as well as the following (A-2) low molecular weight compound are used.
- Alkali-soluble resins or resins that can become alkali-soluble can be used.
- the former is a so-called negative resist composition
- the latter is a so-called positive resist composition.
- the resist composition of the present invention is preferably of a positive type.
- a crosslinking agent is blended with the resist composition together with the component (B). Then, when an acid is generated from the component (B) by exposure to light during the formation of the resist pattern, a strong acid acts to cause cross-linking between the component (A) and the cross-linking agent, and becomes alkali-insoluble.
- the cross-linking agent for example, usually, melamine having a methylol group or an alkoxymethyl group, urea or An amino-based crosslinking agent such as glycol peryl is used.
- the component (A) is an alkali-insoluble resin having an acid dissociable, dissolution inhibiting group.
- the acid is dissociated by the acid dissociation.
- the component (A) becomes alkali-soluble.
- a hydroxystyrene-based resin a resin containing a structural unit derived from a (meth) acrylate ester, and the like can be used, and any of a positive type and a negative type can be used.
- (meth) acrylic acid is a generic term for methacrylic acid and acrylic acid. is there.
- (meta) atelylate” is a general term for metatarylate and atalylate.
- the “structural unit” indicates a monomer unit that forms the polymer.
- (Meth) acrylic acid ester The derived structural unit is a structural unit formed by cleavage of the ethylenic double bond of (meth) acrylic acid ester.
- the resin component suitable as a resin component is not particularly limited, but examples thereof include the following two types (V, positive displacement type).
- the first example has the following structural units (al)-(a4).
- the resin has an increased alkali solubility due to the action of an acid. That is, due to the action of an acid that also generates an acid generator upon exposure, the following structural unit (a2) and structural unit (a3) are cleaved, and are initially insoluble in an alkaline developer. In a resin, its alkali solubility increases.
- the structural unit (al) is represented by the following general formula (I). [0024] [Formula 1]
- R represents H or CH.
- R is not particularly limited as long as it is H or CH.
- the bonding position of OH to the benzene ring is not particularly limited, but position 4 (para position) described in the formula is preferred! / ,.
- the structural unit (al) is an amount representing in ⁇ is preferably 40- 80 mol%, still more preferably from 50 to 75 mole 0/0. ⁇ Possible to 40 mole 0/0 above Koyori, it is possible to improve the dissolve in an alkali developing solution, the effect of improving the shape of resist patterns obtained was 80 mol% or less, other structural units And balance.
- the structural unit (a2) is represented by the following general formula ( ⁇ ).
- R represents —H or —CH
- X represents an acid dissociable, dissolution inhibiting group.
- R is not particularly limited as long as it is H or CH.
- the acid dissociable, dissolution inhibiting group X is an alkyl group having a tertiary carbon atom, and the acid dissociable, dissolution inhibiting group having the tertiary carbon atom bonded to an ester group (one C (O) O—). And cyclic acetal groups such as tetrahydrovinyl group and tetrahydrofuranyl group.
- Such an acid dissociable, dissolution inhibiting group ie, X
- X can be arbitrarily used in addition to those used in, for example, a positive resist composition of the amplification type.
- Preferred examples of the structural unit (a2) include those represented by the following general formula [Chemical Formula 3].
- R has the same meaning as described above, and 1 , R 12 , and R 1 each independently represent a lower alkyl group (either a straight-chain or a branched chain. ). Alternatively, two of these may be combined to form a monocyclic or polycyclic alicyclic group (the number of carbon atoms of the alicyclic group is preferably 5 to 12). .
- R 12, R 13 are preferably those displaced also a methyl group.
- (a2) has an alicyclic group, and when it has a monocyclic alicyclic group, (a2) is, for example, a group having a cyclopentyl group or a cyclohexyl group. preferable.
- polycyclic alicyclic groups preferred examples include those represented by the following general formulas [Formula 4] and [Formula 5]. [0034] [Formula 4]
- R has the same meaning as described above, and R 14 is a lower alkyl group (which may be a straight-chain or a branched chain; preferably, it has 115 carbon atoms.)]
- R has the same meaning as described above, and R 15 and R 16 are each independently a lower alkyl group (either a straight chain or a branched chain. Preferably, it has 115 carbon atoms.) )]
- Structural unit (a2) force The amount occupied in the resin is 5 to 30 mol%, preferably 10 to 20 mol%.
- the content is 5 mol% or more, the effect of increasing alkali solubility after dissociation is obtained, and the effect of improving the shape of the resist pattern is obtained.
- the content is 30 mol% or less, the balance with other structural units is obtained. And it becomes easy to control the solubility in an alkali developing solution.
- the structural unit (a3) is represented by the following general formula ( ⁇ ) c
- R and R 1 each independently represent H or —CH
- R 2 represents —CH or CH
- R 3 represents a lower alkyl group.
- the lower alkyl group for R 3 preferably has a straight-chain or branched-chain! / Or carbon number that can be shifted.
- the bonding position of the group bonded to the benzene ring is not particularly limited, but the position 4 (para position) shown in the formula is preferred!
- Examples of the group bonded to the benzene ring include a 1-methoxyethoxy group, a 1ethoxyethoxy group, a 1npropoxyethoxy group, a 1isopropoxyethoxy group, a 1nbutoxyethoxy group, a 1isobutoxyethoxy group, and a 1- (1 1,1-dimethylethoxy)-1-methylethoxy group, 1-methoxy-1-methylethoxy group, 1-ethoxy-1 methylethoxy group, 1 n-Proboxy 1-methylethoxy group, 1-isobutoxy-1-methylethoxy group, 1-methoxy-n-propoxy Group, 1 ethoxy n propoxy group and the like.
- the 1-ethoxyethoxy group and the 1-methoxy- n -propoxy group are particularly preferred.
- the most preferred is the 1-ethoxyethoxy group.
- the amount occupied in the structural unit (a3) force ⁇ is preferably 10-50 mol%, more preferably 20- 40 mol 0/0. With the effect of increasing the alkali solubility after dissociation can be obtained by a 10 mole 0/0 or more, good resist pattern can be obtained, by 50 mol% or less, balance with the other structural units be able to.
- ⁇ ⁇ Structural unit (a4) The structural unit (a4) is represented by the following general formula (IV).
- R represents H or CH
- R 4 represents a lower alkyl group
- n represents 0 or 1
- a lower alkyl group of R 4 is Yogu carbon atoms in either a straight chain or branched chain favored properly is one one 5.
- n is preferably a force 0 indicating an integer of 0 or 113.
- the amount of the structural unit (a4) in the resin component is preferably 1 to 35 mol%, more preferably 5 to 20 mol%.
- the content is 1 mol% or more, the effect of improving the shape (especially, the improvement in film reduction described later) increases, and when the content is 35 mol% or less, a balance with other structural units can be obtained.
- a copolymer having all of the structural units (al), (a2), (a3), and (a4) may be used, or a polymer having one or more of these units may be used. It may be a mixture of two. Or you may combine these.
- the resin component is a component capable of optionally containing components other than the structural units (al), (a2), (a3), and (a4). ratio of preferably 80 mol% or more, more preferably 90 mol 0/0 or more, and most preferably 100 mole 0/0.
- the copolymer (1) having the structural unit (al) and the (a3) or the structural unit (al); ) And the copolymer (2) having the above (a4) are most preferably used or mixed, because the effect can be easily obtained. It is also preferable in terms of improving heat resistance.
- the weight ratio of the copolymer (1) to the copolymer (2) when mixed is, for example, 1Z9-9Z1, preferably 3Z7-7Z3.
- the weight average molecular weight of the resin in terms of polystyrene by GPC is preferably from 3000 to 300000, and more preferably ⁇ 5000 to 20000.
- the resin can be obtained by polymerizing the material monomer of the structural unit by a known method.
- the resin of the second example has an acid dissociable, dissolution inhibiting group containing a polycyclic group in the side chain of the ester, and a structural unit derived from a (meth) acrylic acid ester in the main chain. It is a fat component whose alkali solubility increases by its action.
- the resin when an acid generated from the component (B) upon exposure acts, the polycyclic group-containing acid dissociable, dissolution inhibiting group having excellent etching resistance is dissociated, and the resin component as a whole becomes alkaline. It changes to insoluble charcoal alkali soluble. Therefore, when exposure is performed through a mask pattern in the formation of a resist pattern, the alkali solubility of the exposed portion increases, and alkali development can be performed.
- the resin component is, for example, a combination force of a plurality of monomer units having different functions.
- the methacrylic acid ester constituent unit and the acrylic acid ester constituent unit constitute a resin component. It may be contained in the monomer unit.
- the resin component is preferably
- a structural unit containing a polycyclic group-containing acid dissociable, dissolution inhibiting group and derived from a (meth) acrylic ester (hereinafter sometimes referred to as a first structural unit);
- a structural unit containing a rataton-containing monocyclic or polycyclic group and derived from a (meth) acrylate hereinafter, sometimes referred to as a second structural unit
- a structural unit containing a hydroxyl group-containing polycyclic group and derived from a (meth) acrylate (hereinafter, sometimes referred to as a third structural unit),
- the first structural unit is indispensable, and two types of the first structural unit and the second structural unit or the third structural unit may be used, but all of the first to third structural units are used. It is preferable that these materials include these three types of structural unit power in view of the etching resistance, the resolution, the adhesion between the resist film and the substrate, and the like.
- the resin component is composed of the following structural units (hereinafter, referred to as a fourth structural unit or a structural unit (al4)). May be written)
- a polycyclic group-containing acid dissociable, dissolution inhibiting group of the first structural unit, a rataton-containing monocyclic or polycyclic group of the second structural unit, and a hydroxyl group-containing polycyclic group of the third structural unit In particular, by including a polycyclic group other than the above and a structural unit derived from a (meth) acrylic acid ester, it is possible to obtain a semi-dense pattern (a space width of 1. 2-2 line and space pattern) is excellent and preferable. Therefore, the combination of the first to fourth constituent units can be appropriately adjusted according to required characteristics and the like.
- the resin component includes a polycyclic group-containing acid dissociable, dissolution inhibiting group, and includes an acrylate structural unit (all) and a polycyclic group-containing acid dissociable, dissolution inhibiting group, Further, it is preferable to include one or both of the structural units (all ′) derived from methacrylate ester.
- both the structural unit (all) and the structural unit (al) the structural unit containing a polycyclic group-containing acid dissociable, dissolution inhibiting group and derived from ester (meth) acrylate.
- the molar ratio of the structural unit (al l): the structural unit (al l,) is excellent in compatibility between the polymer having the structural unit (al l) and the polymer having the structural unit (al l '). Therefore, it is preferably 0.4: 2.5, more preferably 0.6: 1.5.
- the resin component contains a rataton-containing monocyclic or polycyclic group and a structural unit (al 2) derived from an acrylate ester copolymer, and a rataton-containing monocyclic or polycyclic group. It is preferable that it contains one or both of the structural units (al2 ′) derived from methacrylate ester.
- both the structural unit (al 2) and the structural unit (al2 ′) are included as a structural unit that contains a rataton-containing monocyclic or polycyclic group and is also derived from (meth) acrylate. Is the case.
- the molar ratio of the structural unit (al2) to the structural unit (al2 ') is favorable because the compatibility between the polymer having the structural unit (a12) and the polymer having the structural unit (al2') is excellent. It is preferably 0.2-5.0, more preferably 0.6-1.5.
- the resin component contains a hydroxyl group-containing polycyclic group, and contains a structural unit (al3) in which acrylate ester power is induced, a hydroxyl group-containing polycyclic group, and is derived from a methacrylate ester. It preferably contains one or both of the constituent units (al3 '). Preferably, it is a case where it contains a hydroxyl group-containing polycyclic group and contains both the structural unit (al3) and the structural unit (al3 ′) as structural units derived from a (meth) acrylic ester.
- the molar ratio of the structural unit (al3) to the structural unit (al3 ′) is preferable because the compatibility between the polymer having the structural unit (al3) and the polymer having the structural unit (al3 ′) is excellent. It is preferably 0.2-5.0, more preferably 0.6-1.5.
- the polycyclic group may be a group obtained by removing one hydrogen atom from bicycloalkane, tricycloalkane, tetracycloalkane, or the like. And the like.
- Specific examples include groups obtained by removing one hydrogen atom from polycycloalkanes such as adamantane, norbornane, isobornane, tricyclodecane, and tetracyclodecane.
- Such a polycyclic group can be appropriately selected and used in the ArF resist for a number of proposed intermediate strengths.
- an adamantyl group, a norbornyl group, and a tetracyclododele group are industrially preferable.
- the acid dissociable, dissolution inhibiting group has an alkali dissolution inhibiting property that renders the entire resin component insoluble in alkali before exposure, and dissociates by the action of an acid generated from the component (B) after exposure.
- Any resin can be used without particular limitation as long as it changes the entire fat component to alkali solubility.
- the structural units (al 1) and (all ') are not particularly limited as long as they have such a function! / ⁇ indicates the structural units (al 1) and (all') In both (preferably both), the polycyclic group-containing acid dissociable, dissolution inhibiting group is selected from the following general formulas (IB), (II-B), and ( ⁇ —B) It is preferable that the material is excellent in resolution and dry etching resistance.
- R 1 ′ is a lower alkyl group.
- R 2 ′ and R 3 are each independently a lower alkyl group.
- R 4 is a tertiary alkyl group.
- one or both (preferably both) of the structural units (all) and (all ′) have at least one selected from the following general formulas ( ⁇ ), ( ⁇ ′) or ( ⁇ ).
- ⁇ One kind is preferred, ⁇ [0062] [Formula 11]
- R is a hydrogen atom or a methyl group
- R 1 ′ is a lower alkyl group, and when R is a hydrogen atom, it is a structural unit (all), and when R is a methyl group, it is a structural unit (all ′).
- R is a hydrogen atom or a methyl group
- IT and R 3 ′ are each independently a lower alkyl group, and when R is a hydrogen atom, it is a structural unit (all), and when R is a methyl group, it is a structural unit (all ′) ).
- R is a hydrogen atom or a methyl group
- R 4 is a tertiary alkyl group, and when R is a hydrogen atom, it is a structural unit (all), and when R is a methyl group, it is a structural unit (all ') )
- the structural unit represented by the general formula () is an oxygen atom in the ester portion of (meth) acrylic acid.
- R is a hydrogen atom or a methyl group.
- R 1 ′ is preferably a lower linear or branched alkyl group having 115 carbon atoms, and is preferably a methyl group, an ethyl group, a propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a tert-butyl group.
- an alkyl group having 2 or more carbon atoms, preferably 2 to 5 carbon atoms is preferable. In this case, the acid dissociation tends to be higher than that of a methyl group.
- a methyl group and an ethyl group are industrially preferable.
- the carbon atom adjacent to the oxygen atom ( ⁇ ⁇ ) in the ester portion of (meth) acrylic acid is a tertiary alkyl group. This is the case where a ring skeleton such as an adamantyl group further exists in the alkyl group.
- R 2 ′ and R 3 ′ are each independently And preferably a lower alkyl group having 115 carbon atoms. Such groups tend to be more acid dissociable than the 2-methyl-2-adamantyl group.
- R 2 ', R 3' as are each independently the R 1 'and similar lower linear addition Is a branched alkyl group. Among them, it is industrially preferable that both R 2 ′ and R 3 ′ are methyl groups.
- the carbon atom adjacent to the oxygen atom (-O-) of another ester in the (meth) acrylate portion is a tertiary alkyl group.
- R is the same as in the general formulas ( ⁇ ) and ( ⁇ ′).
- R 4 represents a tert-butyl group or a tert-amyl group.
- a tertiary alkyl group preferably a tertiary alkyl group having 4 or 5 carbon atoms, and a tert-butyl group is industrially preferable.
- R 1 ′ is a methyl group or ethyl.
- R 2 ′ and R 3 ′ are both methyl groups is preferable because of excellent resolution.
- the rataton functional group is effective for enhancing the adhesion between the resist film and the substrate and increasing the hydrophilicity with the developer.
- the structural units (al2) and (al2 ′) are not particularly limited as long as they have such a rataton functional group and a monocyclic or polycyclic group.
- examples of the rataton-containing monocyclic group include groups excluding one ⁇ -petit mouth rataton force hydrogen atom.
- rataton-containing polycyclic group examples include groups having the following structural formula, excluding one rataton-containing bicycloalkane hydrogen atom. [0070] [Formula 14]
- the rataton-containing monocyclic or polycyclic group has the following general formula (IV ⁇ It is preferably at least one selected from B) and (VB).
- the ⁇ -petit mouth lactone ester or norbornane ratatone ester power of (meth) acrylic acid having an ester bond at the ⁇ -carbon is particularly preferable because it is industrially available.
- the hydroxyl groups constituting the structural units (al3) and (al3 ') are polar groups, by using these, the affinity of the entire resin component with the developer is increased, and the alkali in the exposed area is increased. The solubility is improved. Therefore, the structural units (al3) and (al3 ') contribute to improvement in resolution.
- the polycyclic group includes a large number of polycyclic groups similar to those exemplified in the description of the structural units (al1) and (all ′).
- Base force Can be appropriately selected and used.
- the structural units (al3) and (al3 ′) are not particularly limited as long as they are hydroxyl group-containing polycyclic groups. Specifically, hydroxyl group-containing adamantyl groups and the like are preferably used.
- a compound represented by the following general formula (VI-B) having a hydroxyl group-containing adamantyl group strength or less has an effect of increasing dry etching resistance and enhancing perpendicularity of the non-turn cross-sectional shape, and is therefore preferable.
- one or both (preferably both) of the structural units (al3) and (al3 ′) are structural units represented by the following general formula (VI ′).
- the relative to the total structural units that constitute the ⁇ component, the total of the structural unit (al 1) and the structural unit (al l ') is 30- 60 mol 0/0, preferably 30 - If it is 50 mol 0/0, excellent resolution, preferred.
- the structural unit (al 2) and the structural unit (al2,) total 20-60 mole 0/0, preferably 20- 50 moles 0 A value of / 0 is preferable because of excellent resolution.
- the resist pattern shape is excellent and is preferable.
- the following copolymer (a) is excellent in resolution. ,preferable.
- the structural unit (al l ′) is calculated based on the total of the structural units (al 1 ′), (al 2 ′) and (al 3). ) is 30- 60 mol 0/0, preferably 30 to 50 mole 0/0, the structural unit (al2,) is 20-60 mole 0/0, preferably rather 20-50 mole 0/0, the configuration unit (AL3) power - 50 mole 0/0, and preferably from 20- 40 mole% preferably.
- a mixed resin of the following copolymer (mouth) and the following copolymer (c) has a good balance between etching resistance (surface roughness) and resolution. It can be improved and is preferable.
- the mass ratio between the copolymer (mouth) and the copolymer (c) is preferably 80:20 to 20: 80! /.
- the power of blending the structural unit (al3) and the structural unit (al3 ') may be arbitrary.
- the hydroxyl group is a polar group as described above. This is preferable because the affinity of the compound increases, and the alkali solubility in the exposed portion is improved, which contributes to the improvement in resolution.
- a mixed resin of the copolymer (i) and the copolymer (mouth) is also capable of resolving etching resistance (surface roughness). It is preferable because the properties can be improved in a well-balanced manner.
- the mass ratio of the copolymer (a) to the copolymer (mouth) was determined. Is preferably 80: 20—20: 80! / ,.
- the power of blending the structural unit (al3) is optional as described above, but blending the structural unit (al3) contributes to improvement in resolution. I like it.
- the copolymer (11) the following copolymer (2) is also preferable because it has excellent resolution and has little surface roughness during etching.
- Copolymer (d) the structure simply (al l,) 30- 60 mole 0/0, preferably 30 to 50 mole 0/0, the structural unit (al2) 20- 60 mol%, preferably 20- 50 mol%, and the structural unit of (al3) 1- 50 mole 0/0, preferably 20- 40 mole 0/0, the force becomes copolymer.
- the resin component further includes, as the fourth structural unit, "the polycyclic group-containing acid dissociable, dissolution inhibiting group, the ratatone-containing monocyclic or polycyclic group, It preferably contains a polycyclic group other than a hydroxyl group-containing polycyclic group, and further contains a structural unit [a (14)] derived from a (meth) acrylate.
- the meaning of "other than the polycyclic group-containing acid dissociable, dissolution inhibiting group, the ratatone-containing monocyclic or polycyclic group, and the hydroxyl group-containing polycyclic group” means that the structural unit (al4)
- the polycyclic group includes the polycyclic group-containing acid dissociable, dissolution inhibiting group of the first structural unit, the rataton-containing monocyclic or polycyclic group of the second structural unit, and the third structural unit. This means that it does not overlap with the hydroxyl group-containing polycyclic group, that is, the structural unit (al4) is a polycyclic group-containing acid dissociable, dissolution inhibiting group of the first structural unit and ratatone of the second structural unit. This means that the containing monocyclic or polycyclic group and the hydroxyl group-containing polycyclic group of the third structural unit are not kept at all.
- Such a polycyclic group is not particularly limited as long as it is selected so as not to overlap the first to third structural units in one resin component.
- the same polycyclic groups as those exemplified in the case of the aforementioned structural units (all) and (all ′) can be used, and the power is conventionally known as an ArF positive resist material! /, Many can be used.
- At least one selected from the group consisting of a tricyclodecanyl group, an adamantyl group, and a tetracyclododetyl group is preferred in terms of industrial availability.
- the structural unit (al4) one or both of a unit derived from an acrylate ester and a unit derived from a methacrylate ester are contained in one resin component. Is also good.
- it may be a unit constituting the copolymer (11) as described above, or may be one or more constituent units of one or more resins constituting the mixed resin (12). However, from the viewpoint of the effect, it is preferable that it is included as one unit of the copolymer together with the first to third structural units.
- R is a hydrogen atom or a methyl group
- R is a hydrogen atom or a methyl group
- R is a hydrogen atom or a methyl group
- Configuration Unit (AL4), relative to the total structural units constituting the ⁇ components 1 one 25 molar 0/0, and preferably is 10-20 mole 0/0, the isolated pattern Excellent in resolution of semi-dense pattern, preferred.
- the structural unit (al4) is contained, if the copolymer (11) is the following copolymer (e), in addition to the effect of the above (a4) unit, This is preferable because surface roughness and line edge roughness are also improved.
- Copolymer (e) a copolymer composed of the above-mentioned structural unit (all ′), the above-mentioned structural unit (al2), the above-mentioned structural unit (al3) and the above-mentioned structural unit (al4).
- the structural unit (al l ') force 30- 60 Monore 0/0, preferably ⁇ or 30- 50 Monore 0/0
- the structural unit (al2) force 20- 60 molar%, preferably 20 - 50 mole 0/0
- the structural unit (al 3) is 1 one 30 mole 0/0, preferably 1 0 - 20 mole 0/0
- the structural unit (AL4) is 1 one 25 mole 0/0, and preferably is 10-20 mole 0/0 preferred.
- the mixed resin (12) is a mixed resin of the copolymer (2) and the copolymer (e)
- the resolution of the isolated space pattern (trench) is improved. Possible point power is preferable.
- the mass ratio between the copolymer (2) and the copolymer (e) is preferably 80:20 to 20: 80! /.
- the power of blending the structural unit (al3) and the structural unit (al3 ') may or may not be arbitrary.
- the hydroxyl group is a polar group as described above. This is preferable because the affinity of the compound increases, and the alkali solubility in the exposed portion is improved, which contributes to the improvement in resolution.
- the polymer constituting the copolymer or the mixed resin may be a known radical polymerization using a radical polymerization initiator such as azobisisobutymouth-tolyl ( ⁇ ) by converting the corresponding (meth) acrylic acid ester monomer or the like. And so on.
- a radical polymerization initiator such as azobisisobutymouth-tolyl ( ⁇ ) by converting the corresponding (meth) acrylic acid ester monomer or the like. And so on.
- the ( ⁇ -2) low molecular weight compound is not particularly limited as long as it has a low molecular weight and has an acid dissociable, dissolution inhibiting group as exemplified in the description of ( ⁇ -1) above. be able to.
- the low molecular weight conjugated compound generally has a molecular weight of 2,000 or less, and includes a compound having a plurality of phenol skeletons in which a part of the hydroxyl hydrogen atoms is substituted with the above-described acid dissociable, dissolution inhibiting group. These include non-chemically amplified g-line and i-line resists.
- a sensitizer which is obtained by substituting a part of the hydrogen atom of the hydroxyl group of the low molecular weight phenol conjugate known as a heat resistance improver with the above-described acid dissociable, dissolution inhibiting group. Can be used.
- Examples of the low molecular weight phenolic conjugate include the following. Bis (4-hydroxyphenyl) methane, bis (2,3,4-trihydroxyphenyl) methane, 2- (4-hydroxyphenyl) -2- (4-hydroxyphenyl) propane, 2 — (2,3,4 trihydroxyphenyl) — 2— (2,3,4,1, trihydroxyphenyl) propane, tris (4-hydroxyphenyl) methane, bis (4-hydroxy-3,3) 5-dimethylphenyl) -2-hydroxyphenylmethane, bis (4-hydroxy-2,5-dimethylphenyl) -1-hydroxyphenylmethane, bis (4-hydroxy-3,5-dimethylphenyl) -1,4 —Dihydroxyphenylmethane, bis (4-hydroxy-2,5-dimethylphenyl) -1,3,4-dihydroxyphenylmethane, bis (4-hydroxy-3-methylphenyl) -1,3,4-dihydroxyphenylmethane, Bis (3-cyclo
- the acid dissociation-suppressing group is not particularly limited, and examples thereof include those described above.
- any one can be appropriately selected from those conventionally known as acid generators in chemically amplified resists.
- diazomethane-based acid generators include bis (isopropylsulfol) diazomethane, bis (p-toluenesulfol) diazomethane, bis (1,1 dimethylethylsulfol) diazomethane, and bis (cyclohexane).
- o-dum salts include diphenyl trifluoromethanesulfonate, (4-methoxyphenyl) phenodonium trifluoromethanesulfonate, and bis ( p-tert-Butylphenyl) odonium trifluoromethanesulfonate, triphenylsulfo-dimethyltrifluoromethanesulfonate, (4-methoxyphenyl) diphenylsulfone-dimethyltrifluoromethanesulfonate, (4 methylphenyl- Le) diphenyl-sulfo-dumnonafluorobutanesulfonate, (p-tert-butylphenyl) diphenyl-sulfo-demitrifluoromethanesulfonate, diphenyl-nondumonafluorobutanesulfonate, bis (p-tert-butyl) (Butyl) (Butyl) (
- Examples of the oxime sulfonate compounds include ⁇ (methylsulfo-roxyimino) -phenylacetonitrile, ⁇ - (methylsulfo-roxyimino) ⁇ -methoxyphenyl-acetyl-tolyl, ⁇ (trifluoromethylsulfo-roxyimino) phenyl -Lacetonitrile, ⁇ — (Trifluoromethylsulfo-roximinino) ⁇ -Methoxyphenyluacetonitrile, ⁇ -(Ethylsulfo-roxyimino) ⁇ -Methoxyphenylacetonitrile, H- (Propylsulfo-roxynimino) ⁇ Methylferroxynitrile (Roxisimino) ⁇ -bromophen-l-acetonitrile and the like. Of these, ⁇ (methylsulfo-roximino) -pheny
- one type of acid generator may be used alone, or two or more types may be used in combination.
- the amount of the component (II) used is 11 to 20 parts by mass, preferably 2 to 10 parts by mass, based on 100 parts by mass of the component (II). If the amount is less than the above range, the pattern may not be sufficiently formed, and if the amount exceeds the above range, a uniform solution may not be obtained and storage stability may be deteriorated.
- any known compounds may be used arbitrarily.
- Amines particularly secondary lower aliphatic amines ⁇ tertiary lower fatty acids, may be used. Aliphatic amines are preferred.
- the lower aliphatic amine refers to an alkyl or alkyl alcohol amine having a carbon number of 5 or less
- examples of the secondary and tertiary amines include trimethylamine, getylamine, triethynoleamine, and diamine.
- Particularly preferred are tertiary alkanolamines such as triethanolamine.
- an organic carboxylic acid or an organic carboxylic acid or an optional component (D) is further added.
- An oxo acid of phosphorus or a derivative thereof can be contained.
- the component (C) and the component (D) can be used in combination, and V and one kind of shear force can be used.
- organic carboxylic acid for example, malonic acid, citric acid, malic acid, succinic acid, benzoic acid, salicylic acid and the like are suitable.
- Phosphorus oxo acids or derivatives thereof include phosphoric acid such as phosphoric acid, di-n-butyl phosphate, and diphenyl phosphate, or derivatives such as esters thereof, phosphonic acid, dimethyl phosphonate, and phosphonic acid.
- Phosphonic acid such as n-butyl ester, phenylphosphonic acid, diphenylphosphonic acid ester, dibenzylphosphonic acid ester, and derivatives such as those esters;
- phosphinic acids such as phosphinic acid and phenylphosphinic acid; Derivatives such as esters thereof are mentioned, and among them, phosphonic acid is particularly preferable.
- the component (D) is used in an amount of 0.01 to 5.0 parts by mass per 100 parts by mass of the component (A).
- the resist composition of the present invention may further contain, if desired, additives that are miscible, for example, an additional resin for improving the performance of the resist film, a surfactant for improving coatability, and a dissolving agent.
- additives that are miscible for example, an additional resin for improving the performance of the resist film, a surfactant for improving coatability, and a dissolving agent.
- Inhibitors, plasticizers, stabilizers, coloring agents, antihalation agents and the like can be appropriately added and contained.
- the method of forming a resist pattern according to the present invention can be performed, for example, as follows. That is, first, the positive resist composition is applied on a substrate such as silicon wafer with a spinner or the like, and the pre-baking is performed at a temperature of 80 to 150 ° C, preferably 130 to 150 ° C. 40- 120 seconds, preferably by 60- subjected for 90 seconds, which, for example EUV or EB exposure apparatus, a vacuum (e.g. 1 X 10- 7 - 1 X 10- 5 Pa) through a desired mask pattern, or After selective exposure by drawing, PEB (post-exposure bake) is applied for 40-120 seconds, preferably 60-90 seconds, at a temperature of 80-150 ° C. Then alkali developing solution such as 0.5 1 10 mass 0/0 tetramethylammonium - developing is conducted using an Umuhidorokishido solution. Thus, a resist pattern faithful to the mask pattern can be obtained.
- PEB post-exposure bake
- an organic or inorganic antireflection film can be provided between the substrate and the coating layer of the resist composition.
- the composition other than the organic solvent is as follows.
- the component (A), the component (B), and the nitrogen-containing organic compound were dissolved in the following organic solvents (2000 parts by mass) to obtain a positive resist composition.
- Component (A) 100 parts by mass of a copolymer prepared by charging and polymerizing hydroxystyrene, styrene, and t-butyl methacrylate in a molar ratio of 65Z15Z20 (weight average molecular weight 10,000)
- Component (B) triphenylsulfo-dumnonafluorobutanesulfonate 5.0 parts by mass Other additives triethanolamine 0.3 parts by mass
- Each of the above resist compositions is applied on a silicon substrate with a diameter of 200 mm to a thickness of 2300 ⁇ 10% A, and 90 seconds at 90 ° C, 110 ° C, 130 ° C, and 150 ° C, respectively.
- the film thickness after heating was measured.
- Each of the above resist compositions was coated on a silicon substrate having a diameter of 200 mm so as to have a film thickness of 2300 ⁇ 10% A, and each was heated at 130 ° C. for 90 seconds.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/574,073 US7407734B2 (en) | 2003-10-22 | 2004-10-20 | Resist composition for electron beam or EUV |
US12/044,678 US7879528B2 (en) | 2003-10-22 | 2008-03-07 | Resist composition for electron beam or EUV |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003362223 | 2003-10-22 | ||
JP2003-362223 | 2003-10-22 | ||
JP2003-371111 | 2003-10-30 | ||
JP2003371111 | 2003-10-30 | ||
JP2004100206A JP4347110B2 (ja) | 2003-10-22 | 2004-03-30 | 電子線又はeuv用ポジ型レジスト組成物 |
JP2004-100206 | 2004-03-30 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/574,073 A-371-Of-International US7407734B2 (en) | 2003-10-22 | 2004-10-20 | Resist composition for electron beam or EUV |
US12/044,678 Continuation US7879528B2 (en) | 2003-10-22 | 2008-03-07 | Resist composition for electron beam or EUV |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005040921A1 true WO2005040921A1 (ja) | 2005-05-06 |
Family
ID=34527585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/015503 WO2005040921A1 (ja) | 2003-10-22 | 2004-10-20 | 電子線又はeuv用レジスト組成物 |
Country Status (5)
Country | Link |
---|---|
US (2) | US7407734B2 (ja) |
JP (1) | JP4347110B2 (ja) |
KR (1) | KR100796962B1 (ja) |
TW (1) | TWI330300B (ja) |
WO (1) | WO2005040921A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006047940A (ja) * | 2004-05-31 | 2006-02-16 | Tokyo Ohka Kogyo Co Ltd | レジスト組成物、レジストパターンの形成方法 |
EP1978408B1 (en) * | 2007-03-29 | 2011-10-12 | FUJIFILM Corporation | Negative resist composition and pattern forming method using the same |
WO2009085468A2 (en) * | 2007-12-19 | 2009-07-09 | Centocor, Inc. | Engineered phage vectors for the design and the generation of a human non-antibody peptide or protein phage library via fusion to pix of m13 phage |
US20100203450A1 (en) * | 2009-02-11 | 2010-08-12 | International Business Machines Corporation | Photoresist compositions and methods of use |
KR102227564B1 (ko) * | 2014-01-20 | 2021-03-15 | 삼성디스플레이 주식회사 | 포토레지스트 조성물 |
US20160306278A1 (en) * | 2015-04-20 | 2016-10-20 | Tokyo Ohka Kogyo Co., Ltd. | Chemical for photolithography with improved liquid transfer property and resist composition comprising the same |
US11557479B2 (en) * | 2020-03-19 | 2023-01-17 | Tokyo Electron Limited | Methods for EUV inverse patterning in processing of microelectronic workpieces |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0611836A (ja) * | 1992-03-23 | 1994-01-21 | Japan Synthetic Rubber Co Ltd | レジスト塗布組成物 |
JPH09281696A (ja) * | 1996-04-16 | 1997-10-31 | Hitachi Ltd | レジスト組成物およびそれを用いたパタン形成方法 |
JPH11212265A (ja) * | 1998-01-26 | 1999-08-06 | Sumitomo Chem Co Ltd | 化学増幅型のポジ型レジスト組成物 |
JP2000010287A (ja) * | 1998-04-22 | 2000-01-14 | Fuji Photo Film Co Ltd | ポジ型感光性樹脂組成物 |
JP2000066380A (ja) * | 1998-08-14 | 2000-03-03 | Fuji Photo Film Co Ltd | ポジ型感光性樹脂組成物 |
JP2001142212A (ja) * | 1999-11-11 | 2001-05-25 | Fuji Photo Film Co Ltd | ポジ型フォトレジスト組成物 |
JP2002014470A (ja) * | 2000-06-28 | 2002-01-18 | Fuji Photo Film Co Ltd | 電子線又はx線用ネガ型レジスト組成物 |
JP2002023375A (ja) * | 2000-07-10 | 2002-01-23 | Fuji Photo Film Co Ltd | ポジ型フォトレジスト組成物 |
JP2002202606A (ja) * | 2000-12-28 | 2002-07-19 | Fuji Photo Film Co Ltd | 遠紫外線露光用ポジ型フォトレジスト組成物 |
JP2002236364A (ja) * | 2001-02-08 | 2002-08-23 | Fuji Photo Film Co Ltd | 電子線又はx線用ネガ型レジスト組成物 |
JP2002351077A (ja) * | 2001-05-22 | 2002-12-04 | Fuji Photo Film Co Ltd | ポジ型感光性組成物 |
JP2003206315A (ja) * | 2002-01-10 | 2003-07-22 | Daicel Chem Ind Ltd | フォトレジスト用高分子化合物の製造方法、及びフォトレジスト用樹脂組成物 |
JP2003215806A (ja) * | 2002-01-25 | 2003-07-30 | Sumitomo Chem Co Ltd | レジスト組成物 |
JP2003241384A (ja) * | 2002-02-22 | 2003-08-27 | Jsr Corp | 感放射線性樹脂組成物 |
JP2003255542A (ja) * | 2002-03-04 | 2003-09-10 | Fuji Photo Film Co Ltd | ポジ型感光性組成物 |
JP2003270790A (ja) * | 2002-03-18 | 2003-09-25 | Fuji Photo Film Co Ltd | ポジ型レジスト組成物 |
JP2003280202A (ja) * | 2002-03-25 | 2003-10-02 | Fuji Photo Film Co Ltd | ポジ型レジスト組成物 |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5456996A (en) * | 1988-07-07 | 1995-10-10 | Sumitomo Chemical Company, Limited | Radiation-sensitive positive resist composition |
CA2023791A1 (en) * | 1989-08-24 | 1991-02-25 | Ayako Ida | Radiation-sensitive positive resist composition |
US5288587A (en) * | 1989-09-05 | 1994-02-22 | Sumitomo Chemical Co., Ltd. | Radiation-sensitive positive resist composition comprising an o-quinone diazide, an alkali-soluble resin and a polyphenol compound |
KR0184870B1 (ko) * | 1990-02-20 | 1999-04-01 | 아사구라 다기오 | 감방사선성 수지 조성물 |
KR100341563B1 (ko) | 1992-03-23 | 2002-10-25 | 제이에스알 가부시끼가이샤 | 레지스트도포조성물 |
JP3488332B2 (ja) * | 1996-02-02 | 2004-01-19 | 東京応化工業株式会社 | ポジ型ホトレジスト塗布液 |
JP3076523B2 (ja) * | 1996-03-25 | 2000-08-14 | 東京応化工業株式会社 | ポジ型ホトレジスト組成物 |
US6806022B1 (en) * | 1998-04-22 | 2004-10-19 | Fuji Photo Film Co., Ltd. | Positive photosensitive resin composition |
KR100610165B1 (ko) * | 1998-12-07 | 2006-08-09 | 후지 샤신 필름 가부시기가이샤 | 포지티브 포토레지스트 조성물 |
US6492086B1 (en) * | 1999-10-08 | 2002-12-10 | Shipley Company, L.L.C. | Phenolic/alicyclic copolymers and photoresists |
TWI286664B (en) * | 2000-06-23 | 2007-09-11 | Sumitomo Chemical Co | Chemical amplification type positive resist composition and sulfonium salt |
JP2002015971A (ja) * | 2000-06-27 | 2002-01-18 | Matsushita Electric Ind Co Ltd | パターン形成方法及び半導体装置の製造装置 |
US6849374B2 (en) * | 2000-11-03 | 2005-02-01 | Shipley Company, L.L.C. | Photoacid generators and photoresists comprising same |
US6787286B2 (en) * | 2001-03-08 | 2004-09-07 | Shipley Company, L.L.C. | Solvents and photoresist compositions for short wavelength imaging |
US6927009B2 (en) * | 2001-05-22 | 2005-08-09 | Fuji Photo Film Co., Ltd. | Positive photosensitive composition |
US6949329B2 (en) * | 2001-06-22 | 2005-09-27 | Matsushita Electric Industrial Co., Ltd. | Pattern formation method |
JP3693623B2 (ja) | 2001-06-22 | 2005-09-07 | 松下電器産業株式会社 | パターン形成方法 |
JP4025074B2 (ja) * | 2001-09-19 | 2007-12-19 | 富士フイルム株式会社 | ポジ型レジスト組成物 |
JP4004820B2 (ja) | 2001-10-01 | 2007-11-07 | 富士フイルム株式会社 | ポジ型電子線、x線又はeuv用レジスト組成物 |
JP2003140361A (ja) * | 2001-10-31 | 2003-05-14 | Matsushita Electric Ind Co Ltd | パターン形成方法 |
US6767688B2 (en) * | 2001-12-31 | 2004-07-27 | Shipley Company, L.L.C. | Photoresist compositions |
US20040009429A1 (en) * | 2002-01-10 | 2004-01-15 | Fuji Photo Film Co., Ltd. | Positive-working photosensitive composition |
US7521168B2 (en) | 2002-02-13 | 2009-04-21 | Fujifilm Corporation | Resist composition for electron beam, EUV or X-ray |
JP4083035B2 (ja) * | 2002-02-13 | 2008-04-30 | 富士フイルム株式会社 | 電子線、euv又はx線用レジスト組成物 |
TWI287028B (en) * | 2002-05-17 | 2007-09-21 | Hitachi Chem Dupont Microsys | Photosensitive polymer composition, method of forming relief patterns, and electronic equipment |
US20040053160A1 (en) | 2002-07-04 | 2004-03-18 | Fuji Photo Film Co., Ltd. | Resist composition |
JP2004310004A (ja) * | 2002-07-04 | 2004-11-04 | Fuji Photo Film Co Ltd | レジスト組成物 |
-
2004
- 2004-03-30 JP JP2004100206A patent/JP4347110B2/ja not_active Expired - Fee Related
- 2004-10-19 TW TW093131671A patent/TWI330300B/zh not_active IP Right Cessation
- 2004-10-20 US US10/574,073 patent/US7407734B2/en active Active
- 2004-10-20 KR KR1020067007387A patent/KR100796962B1/ko active IP Right Grant
- 2004-10-20 WO PCT/JP2004/015503 patent/WO2005040921A1/ja active Application Filing
-
2008
- 2008-03-07 US US12/044,678 patent/US7879528B2/en active Active
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0611836A (ja) * | 1992-03-23 | 1994-01-21 | Japan Synthetic Rubber Co Ltd | レジスト塗布組成物 |
JPH09281696A (ja) * | 1996-04-16 | 1997-10-31 | Hitachi Ltd | レジスト組成物およびそれを用いたパタン形成方法 |
JPH11212265A (ja) * | 1998-01-26 | 1999-08-06 | Sumitomo Chem Co Ltd | 化学増幅型のポジ型レジスト組成物 |
JP2000010287A (ja) * | 1998-04-22 | 2000-01-14 | Fuji Photo Film Co Ltd | ポジ型感光性樹脂組成物 |
JP2000066380A (ja) * | 1998-08-14 | 2000-03-03 | Fuji Photo Film Co Ltd | ポジ型感光性樹脂組成物 |
JP2001142212A (ja) * | 1999-11-11 | 2001-05-25 | Fuji Photo Film Co Ltd | ポジ型フォトレジスト組成物 |
JP2002014470A (ja) * | 2000-06-28 | 2002-01-18 | Fuji Photo Film Co Ltd | 電子線又はx線用ネガ型レジスト組成物 |
JP2002023375A (ja) * | 2000-07-10 | 2002-01-23 | Fuji Photo Film Co Ltd | ポジ型フォトレジスト組成物 |
JP2002202606A (ja) * | 2000-12-28 | 2002-07-19 | Fuji Photo Film Co Ltd | 遠紫外線露光用ポジ型フォトレジスト組成物 |
JP2002236364A (ja) * | 2001-02-08 | 2002-08-23 | Fuji Photo Film Co Ltd | 電子線又はx線用ネガ型レジスト組成物 |
JP2002351077A (ja) * | 2001-05-22 | 2002-12-04 | Fuji Photo Film Co Ltd | ポジ型感光性組成物 |
JP2003206315A (ja) * | 2002-01-10 | 2003-07-22 | Daicel Chem Ind Ltd | フォトレジスト用高分子化合物の製造方法、及びフォトレジスト用樹脂組成物 |
JP2003215806A (ja) * | 2002-01-25 | 2003-07-30 | Sumitomo Chem Co Ltd | レジスト組成物 |
JP2003241384A (ja) * | 2002-02-22 | 2003-08-27 | Jsr Corp | 感放射線性樹脂組成物 |
JP2003255542A (ja) * | 2002-03-04 | 2003-09-10 | Fuji Photo Film Co Ltd | ポジ型感光性組成物 |
JP2003270790A (ja) * | 2002-03-18 | 2003-09-25 | Fuji Photo Film Co Ltd | ポジ型レジスト組成物 |
JP2003280202A (ja) * | 2002-03-25 | 2003-10-02 | Fuji Photo Film Co Ltd | ポジ型レジスト組成物 |
Also Published As
Publication number | Publication date |
---|---|
US20070077512A1 (en) | 2007-04-05 |
US7879528B2 (en) | 2011-02-01 |
TWI330300B (en) | 2010-09-11 |
JP4347110B2 (ja) | 2009-10-21 |
KR100796962B1 (ko) | 2008-01-22 |
TW200517780A (en) | 2005-06-01 |
US7407734B2 (en) | 2008-08-05 |
JP2005157255A (ja) | 2005-06-16 |
KR20060063986A (ko) | 2006-06-12 |
US20080176170A1 (en) | 2008-07-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100711540B1 (ko) | 포지티브형 레지스트 조성물 | |
WO2006027996A1 (ja) | Euv用レジスト組成物およびレジストパターン形成方法 | |
WO2005081062A1 (ja) | パターン形成材料用基材、ポジ型レジスト組成物およびレジストパターン形成方法 | |
WO2006027997A1 (ja) | 電子線またはeuv(極端紫外光)用レジスト組成物及びレジストパターン形成方法 | |
WO2005101128A1 (ja) | ポジ型レジスト組成物及びレジストパターン形成方法 | |
JP2005266798A (ja) | フォトレジスト組成物およびレジストパターン形成方法 | |
US7879528B2 (en) | Resist composition for electron beam or EUV | |
TWI303352B (ja) | ||
WO2006008914A1 (ja) | レジスト組成物およびレジストパターン形成方法 | |
TWI333594B (en) | Positive resist composition, process for forming resist pattern, and process for ion implantation | |
JP2005266741A (ja) | パターン形成材料用基材、ポジ型レジスト組成物およびレジストパターン形成方法 | |
WO2007108253A1 (ja) | 厚膜レジスト膜形成用のポジ型レジスト組成物、厚膜レジスト積層体およびレジストパターン形成方法 | |
WO2008047623A1 (fr) | Composition de réserve positive amplifiée chimiquement pour la lithographie thermique, et procédé de formation d'un motif de réserve | |
WO2005057287A1 (ja) | ポジ型レジスト組成物およびレジストパターン形成方法 | |
WO2007148492A1 (ja) | ポジ型レジスト組成物およびレジストパターン形成方法 | |
JP2008159874A (ja) | レジストパターン形成方法 | |
TWI332603B (en) | Positive resist composition and method for forming resist pattern | |
WO2006123523A1 (ja) | ポジ型レジスト組成物およびレジストパターン形成方法 | |
KR100702375B1 (ko) | 포지티브형 레지스트 조성물 | |
WO2005116769A1 (ja) | ポジ型レジスト組成物及びレジストパターン形成方法 | |
WO2007039989A1 (ja) | ポジ型レジスト組成物およびレジストパターン形成方法 | |
JP4243981B2 (ja) | ホトレジスト組成物及びそれを用いたレジストパターン形成方法 | |
WO2005026842A1 (ja) | ポジ型レジスト組成物およびレジストパターンの形成方法 | |
KR100825465B1 (ko) | 포토레지스트 조성물 및 레지스트 패턴 형성방법 | |
JP2004354954A (ja) | ホトレジスト組成物及びそれを用いたレジストパターン形成方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2007077512 Country of ref document: US Ref document number: 10574073 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020067007387 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067007387 Country of ref document: KR |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 10574073 Country of ref document: US |