WO2014045434A1 - ポジ型感光性樹脂組成物 - Google Patents
ポジ型感光性樹脂組成物 Download PDFInfo
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- WO2014045434A1 WO2014045434A1 PCT/JP2012/074367 JP2012074367W WO2014045434A1 WO 2014045434 A1 WO2014045434 A1 WO 2014045434A1 JP 2012074367 W JP2012074367 W JP 2012074367W WO 2014045434 A1 WO2014045434 A1 WO 2014045434A1
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- Prior art keywords
- resin composition
- photosensitive resin
- positive photosensitive
- compound
- alkali
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- 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
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- 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
- G03F7/022—Quinonediazides
- G03F7/0226—Quinonediazides characterised by the non-macromolecular additives
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- 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
- G03F7/022—Quinonediazides
- G03F7/023—Macromolecular quinonediazides; Macromolecular additives, e.g. binders
- G03F7/0233—Macromolecular quinonediazides; Macromolecular additives, e.g. binders characterised by the polymeric binders or the macromolecular additives other than the macromolecular quinonediazides
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- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/40—Treatment after imagewise removal, e.g. baking
Definitions
- the present invention relates to a positive photosensitive resin composition. More specifically, the present invention relates to a positive photosensitive resin composition suitably used for a surface protective film of a semiconductor element, an interlayer insulating film, an insulating layer of an organic electroluminescent element, and the like.
- polyimide resins and polybenzoxazole resins having excellent heat resistance and mechanical properties have been widely used for surface protective films and interlayer insulating films of semiconductor elements of electronic devices.
- a polyimide precursor or polybenzoxazole precursor coating film is thermally dehydrated and closed to obtain a thin film having excellent heat resistance and mechanical properties. Requires heat treatment.
- polyimide resins or polybenzoxazole resins that can be cured by heat treatment at a low temperature of about 250 ° C. or lower, more preferably 200 ° C. or lower, due to demands for reducing thermal load on devices or reducing warpage, etc. It has been demanded.
- Examples of the low-temperature curable resin composition include a ring-closed polyimide, a photoacid generator, and a photosensitive resin composition using a thermal crosslinking agent having a methylol group (Patent Document 1), a polybenzoxazole precursor into which an aliphatic group is introduced.
- Patent Document 2 a photosensitive resin composition using a photoacid generator
- Patent Document 3 a resin composition containing a cyclic olefin resin, a photoacid generator, and an epoxy resin
- Patent Document 4 and 5 An unsaturated polymerization compound, a compound containing an epoxy group, a resin composition containing photopolymerization (Patent Documents 4 and 5), and the like are known.
- Patent Document 1 has a high elastic modulus and high shrinkage during curing, there is a problem of large warpage.
- the photosensitive resin composition of patent document 2 was able to make low elastic modulus, since the film
- the resin composition of Patent Document 3 can be cured at low temperature and can be reduced in warpage, but has a problem of poor resolution.
- the resin compositions of Patent Documents 4 and 5 have excellent mechanical properties and are low warpage materials, but have a problem of poor resolution because they are a negative type in which an exposed portion has a remaining film.
- An object of the present invention is to provide a positive photosensitive resin composition capable of obtaining a high-resolution cured film with low warpage and no pattern filling caused by reflow during low-temperature heat treatment at 200 ° C. or lower. To do.
- the positive photosensitive resin composition of the present invention has the following constitution. That is, (a) alkali-soluble polyimide, (b) a compound having two or more epoxy groups in one molecule and (c) a photoacid generator, (a) 100 parts by weight of alkali-soluble polyimide, (b) A positive photosensitive resin composition in which the content of a compound having two or more epoxy groups in one molecule is 5 to 50 parts by weight.
- the present invention can provide a positive photosensitive resin composition capable of obtaining a high-resolution cured film with low warpage and no pattern filling due to reflow during low-temperature heat treatment at 200 ° C. or lower.
- Alkali-soluble polyimide (hereinafter also referred to as (a) component) used in the present invention comprises a component selected from tetracarboxylic acid, tetracarboxylic dianhydride, tetracarboxylic acid diester dichloride and the like, a diamine, a diisocyanate compound, and
- the polyamic acid obtained by reacting with a component selected from trimethylsilylated diamine can be obtained by dehydrating and ring-closing by heating or chemical treatment such as acid or base. Even if the component (a) is not partially ring-closed, the ring-closing rate may be 85% or more.
- the component (a) is applied on a silicon wafer, and is obtained by calculating the imidization rate by comparing the peak intensities near 1377 cm ⁇ 1 before and after curing with an infrared absorption spectrum. Can do.
- a component may contain 2 or more types.
- the alkali-soluble polyimide is a polyimide that dissolves in an aqueous alkali solution used as a developer described later.
- the positive photosensitive resin composition of the present invention can be developed using an alkaline aqueous solution.
- the alkali-soluble polyimide preferably contains a polyalkylene oxide group.
- the polyalkylene oxide group include a polyethylene oxide group, a polypropylene oxide group, and a polybutylene oxide group. Among these, a polyethylene oxide group is most preferable.
- the polyethylene oxide group refers to a group in which a is an integer of 2 or more in the following general formula (1). a is preferably 2 to 15.
- the alkali-soluble polyimide contains a diamine residue and an acid anhydride residue.
- the component may contain a diamine residue containing a polyalkylene oxide group or an acid anhydride residue containing a polyalkylene oxide group.
- a diamine residue containing a polyalkylene oxide group and a carboxylic acid residue containing a polyalkylene oxide group are defined as 100% of the total of all carboxylic acid residues and all diamine residues contained in the component. The ratio of the combined residues is preferably 5 to 20 mol%.
- the total of all carboxylic acid residues and all diamine residues contained in component (a) is taken as 100%, and diamine residues containing polyethylene oxide groups and carboxylic acid residues containing polyethylene oxide groups are More preferably, the ratio of the combined residues is 5 to 20 mol%. Thereby, a cured film having low warpage and high heat resistance can be obtained.
- Examples of the diamine containing a polyethylene oxide group include Jeffamine (registered trademark) KH-511, Jeffamine (registered trademark) ED-600, Jeffamine (registered trademark) ED-900, Jeffamine (registered trademark) ED-2003, Examples thereof include, but are not limited to, Jeffermin (registered trademark) EDR-148 and Jeffermin (registered trademark) EDR-176 (trade names, manufactured by HUNTSMAN Co., Ltd.). The chemical structures of these diamines are shown below.
- x, y, and z are average values.
- the alkali-soluble polyimide may have a diamine residue that does not contain a polyethylene oxide group.
- diamine residues include polyoxypropylene diamines D-200, D-400, D-2000, D-4000 (trade names, manufactured by HUNTSMAN Co., Ltd.); bis (3-amino-4 -Hydroxyphenyl) hexafluoropropane, bis (3-amino-4-hydroxyphenyl) sulfone, bis (3-amino-4-hydroxyphenyl) propane, bis (3-amino-4-hydroxyphenyl) methylene, bis (3 -Hydroxyl-containing diamines such as amino-4-hydroxyphenyl) ether, bis (3-amino-4-hydroxy) biphenyl, bis (3-amino-4-hydroxyphenyl) fluorene; 3-sulfonic acid-4,4 ' Sulfonic acid-containing diamines such as diaminodiphenyl ether; Thiol
- diamines can be used as they are or as the corresponding diisocyanate compounds or trimethylsilylated diamines. Two or more diamine components may be used in combination. In applications where heat resistance is required, it is preferable to use an aromatic diamine in an amount of 50 mol% or more of the total diamine.
- the component (a) can contain a phenolic hydroxyl group, a sulfonic acid group, a thiol group, and the like.
- a positive photosensitive resin composition having an appropriate alkali solubility can be obtained.
- phenolic hydroxyl groups are more preferred because of their high reactivity with epoxy groups and thermally crosslinkable compounds.
- a diamine residue or acid anhydride residue containing an aliphatic group having a siloxane structure may be copolymerized within a range where the heat resistance is not lowered, and the adhesion to the substrate can be improved.
- the diamine component include those obtained by copolymerizing 1 to 15 mol% of bis (3-aminopropyl) tetramethyldisiloxane, bis (p-aminophenyl) octamethylpentasiloxane, and the like.
- Examples of the acid anhydride constituting the acid anhydride residue of the alkali-soluble polyimide include pyromellitic dianhydride, 2,2′-hexafluoropropylidenediphthalic dianhydride, 4,4 '-Oxydiphthalic anhydride, 3,3', 4,4'-benzophenonetetracarboxylic dianhydride, 1,2,5,6-naphthalenetetracarboxylic dianhydride, 2,3,6,7-naphthalene Tetracarboxylic anhydride, 1,4,5,8-naphthalenetetracarboxylic dianhydride, 1,1-bis (2,3-dicarboxylphenyl) ethane dianhydride, 2,2-bis (2,3 -Dicarboxylphenyl) ethane dianhydride, 2,2-bis (3,3-carboxylphenyl) ethane dianhydride, 2,2-bis [4- (3,4-dicarboxyl)
- Examples of the acid anhydride containing a polyethylene oxide group include an acid anhydride obtained by reacting trimellitic anhydride chloride with the above diamine containing a polyethylene oxide group at 0 ° C. or lower. It is not limited to. Two or more of these may be used.
- the main chain terminal of the component (a) is end-capped with a monoamine, acid anhydride, monocarboxylic acid, monoacid chloride compound, monoactive ester compound or the like. It is preferable to seal with a stopper.
- monoamine is used as the end-capping agent, the introduction ratio of monoamine is preferably 0.1 mol% or more, particularly preferably 5 mol% or more, preferably 60 mol% or less, particularly with respect to the total amine component. Preferably it is 50 mol% or less.
- the introduction ratio is preferably 0.1 mol or more, particularly preferably relative to 100 mol of the diamine component.
- the amount is 5 mol or more, preferably 100 mol or less, particularly preferably 90 mol or less.
- a plurality of different end groups may be introduced by reacting a plurality of end-capping agents.
- Monoamines include M-600, M-1000, M-2005, M-2070 (above trade names, manufactured by HUNTSMAN), aniline, 2-ethynylaniline, 3-ethynylaniline, 4-ethynylaniline, 5- Amino-8-hydroxyquinoline, 1-hydroxy-7-aminonaphthalene, 1-hydroxy-6-aminonaphthalene, 1-hydroxy-5-aminonaphthalene, 1-hydroxy-4-aminonaphthalene, 2-hydroxy-7-amino Naphthalene, 2-hydroxy-6-aminonaphthalene, 2-hydroxy-5-aminonaphthalene, 1-carboxy-7-aminonaphthalene, 1-carboxy-6-aminonaphthalene, 1-carboxy-5-aminonaphthalene, 2-carboxy -7-aminonaphthalene, 2-carboxy-6- Minonaphthalene, 2-carboxy-5-aminonaphthalene, 2-aminobenzoic acid, 3-a
- Acid anhydrides such as phthalic anhydride, maleic anhydride, nadic anhydride, cyclohexanedicarboxylic anhydride, 3-hydroxyphthalic anhydride, etc., as acid anhydrides, monocarboxylic acids, monoacid chloride compounds, and monoactive ester compounds 3-carboxyphenol, 4-carboxyphenol, 3-carboxythiophenol, 4-carboxythiophenol, 1-hydroxy-7-carboxynaphthalene, 1-hydroxy-6-carboxynaphthalene, 1-hydroxy-5-carboxynaphthalene Monocarboxylic acids such as 1-mercapto-7-carboxynaphthalene, 1-mercapto-6-carboxynaphthalene, 1-mercapto-5-carboxynaphthalene, 3-carboxybenzenesulfonic acid, 4-carboxybenzenesulfonic acid, Mono acid chloride compounds in which these carboxyl groups are converted to acid chlorides; terephthalic acid, phthalic
- the terminal blocker introduced into the component (a) can be easily detected by the following method.
- the component (a) in which the end-capping agent is introduced is dissolved in an acidic solution and decomposed into an amine component and an acid anhydride component, which are structural units, and this is analyzed by gas chromatography (GC) or NMR. By measuring, the end-capping agent can be easily detected.
- the component (a) into which the end-capping agent has been introduced can also be easily detected by directly measuring by pyrolysis gas chromatography (PGC), infrared spectrum and 13 C-NMR spectrum. is there.
- PPC pyrolysis gas chromatography
- the alkali-soluble polyimide preferably has a weight average molecular weight of 10,000 or more and 30,000 or less.
- the weight average molecular weight is a value determined in terms of polystyrene using GPC (gel permeation chromatography).
- GPC gel permeation chromatography
- the weight average molecular weight is 30,000 or less, the developability with an alkaline aqueous solution can be improved.
- the weight average molecular weight is more preferably 20,000 or more.
- the weight average molecular weight of at least 1 type of alkali-soluble polyimide should just be the said range.
- the positive photosensitive resin composition of the present invention contains (b) a compound having two or more epoxy groups in one molecule (hereinafter also referred to as component (b)).
- component (b) a compound having two or more epoxy groups in one molecule
- the epoxy group is thermally cross-linked with the polymer at 200 ° C. or lower and does not cause a dehydration reaction due to cross-linking, so that film shrinkage hardly occurs. For this reason, containing the component (b) is effective for low-temperature curing and low warpage of the resin composition.
- the component (b) has two or more epoxy groups, it is possible to increase the molecular weight by thermal crosslinking of the (a) alkali-soluble polyimide and the component (b), and a cured film having excellent mechanical properties can be obtained.
- the compound having two or more epoxy groups in one molecule preferably contains a polyethylene oxide group.
- a polyethylene oxide group means that in the general formula (1), a is an integer of 2 or more, and preferably 2 to 15.
- Compounds having two or more epoxy groups in one molecule include, for example, bisphenol A type epoxy resin; bisphenol F type epoxy resin; alkylene glycol type epoxy resin such as propylene glycol diglycidyl ether; polypropylene glycol diglycidyl ether Examples thereof include, but are not limited to, polyalkylene glycol type epoxy resins such as epoxy group-containing silicones such as polymethyl (glycidyloxypropyl) siloxane.
- Epicron (registered trademark) 850-S Epicron (registered trademark) HP-4032, Epicron (registered trademark) HP-7200, Epicron (registered trademark) HP-820, Epicron (registered trademark) HP-4700, Epicron (registered trademark) EXA-4710, Epicron (registered trademark) HP-4770, Epicron (registered trademark) EXA-859CRP, Epicron (registered trademark) EXA-1514, Epicron (registered trademark) EXA-4880, Epicron (registered trademark) EXA-4850-150, Epicron EXA-4850-1000, Epicron (registered trademark) EXA-4816, Epicron (registered trademark) EXA-4822 (trade name, manufactured by Dainippon Ink & Chemicals, Inc.), Rica Resin (registered trademark) ) BEO-60E (the following product name, New Japan Science Co., Ltd.), EP-4003S, and the like EP-4000S ((
- an epoxy resin containing a polyethylene oxide group is preferable in terms of excellent low warpage and heat resistance.
- Epicron (registered trademark) EXA-4880, Epicron (registered trademark) EXA-4822, and Licaredin (registered trademark) BEO-60E are preferable because they contain a polyethylene oxide group.
- the content of the component (b) is 5 to 50 parts by weight, preferably 10 to 50 parts by weight, and more preferably 10 to 40 parts by weight with respect to 100 parts by weight of the (a) alkali-soluble polyimide. If the blending amount is less than 10 parts by weight, the cured film of the positive photosensitive resin composition cannot be warped, and if it exceeds 50 parts by weight, pattern filling occurs due to reflow during curing, and the resolution is greatly reduced.
- the positive photosensitive resin composition of the present invention contains (c) a photoacid generator.
- a photoacid generator By containing a photoacid generator, an acid is generated in the ultraviolet-exposed area, and the solubility of the exposed area in an aqueous alkali solution is increased. Therefore, it can be used as a positive photosensitive resin composition.
- Photoacid generators include quinonediazide compounds, sulfonium salts, phosphonium salts, diazonium salts, iodonium salts, and the like.
- a quinonediazide compound is preferably used from the standpoint that a positive photosensitive resin composition exhibiting an excellent dissolution inhibiting effect and having a high sensitivity and a low film thickness can be obtained.
- the quinonediazide compound includes a polyhydroxy compound in which quinonediazidesulfonic acid is ester-bonded, a polyamino compound in which quinonediazidesulfonic acid is bonded to a sulfonamide, and a polyhydroxypolyamino compound in which quinonediazidesulfonic acid is bonded with an ester bond and / or sulfonamide Etc.
- all the functional groups of these polyhydroxy compounds and polyamino compounds may not be substituted with quinonediazide, it is preferable that 50 mol% or more of the entire functional groups are substituted with quinonediazide.
- a positive photosensitive resin composition that reacts with i-ray (wavelength 365 nm), h-ray (wavelength 405 nm), and g-ray (wavelength 436 nm) of a mercury lamp, which is a general ultraviolet ray, is obtained. be able to.
- both a compound having a 5-naphthoquinonediazidesulfonyl group and a compound having a 4-naphthoquinonediazidesulfonyl group are preferably used.
- a compound having both of these groups in the same molecule may be used, or a compound using different groups may be used in combination.
- Examples of the method for producing a quinonediazide compound include a method in which 5-naphthoquinonediazidesulfonyl chloride and a phenol compound are reacted in the presence of triethylamine.
- Examples of the method for synthesizing a phenol compound include a method of reacting an ⁇ - (hydroxyphenyl) styrene derivative with a polyhydric phenol compound under an acid catalyst.
- the content of the photoacid generator is preferably 3 to 40 parts by weight with respect to 100 parts by weight of the resin (a).
- (C) By making content of a photo-acid generator into this range, higher sensitivity can be achieved. Furthermore, you may contain a sensitizer etc. as needed.
- the positive photosensitive resin composition of the present invention preferably further contains (d) a thermally crosslinkable compound separately from the component (b).
- a thermally crosslinkable compound specifically, a compound having at least two alkoxymethyl groups or methylol groups is preferable.
- the alkoxymethyl group include a methoxymethyl group, an ethoxymethyl group, a propoxymethyl group, and a butoxymethyl group. By having at least two of these groups, it is possible to form a crosslinked structure by condensation reaction with the resin and the same kind of molecules.
- a wider range of designs is possible for improving the sensitivity of the positive photosensitive resin composition and the mechanical properties of the cured film.
- Preferred examples of such compounds include methylolated melamine compounds, methoxymethylated melamine compounds, compounds having a dimethylolphenyl group, and compounds having a dimethoxymethylphenyl group. By containing these compounds, pattern filling due to reflow during curing is less likely to occur, and the resolution can be improved.
- Such compounds include, for example, DML-PC, DML-PEP, DML-OC, DML-OEP, DML-34X, DML-PTBP, DML-PCHP, DML-OCHP, DML-PFP, DML- PSBP, DML-POP, DML-MBOC, DML-MBPC, DML-MTrisPC, DML-BisOC-Z, DML-BisOCHP-Z, DML-BPC, DML-BisOC-P, DMOM-PC, DMOM-PTBP, DMOM- MBPC, TriML-P, TriML-35XL, TML-HQ, TML-BP, TML-pp-BPF, TML-BPE, TML-BPA, TML-BPAF, TML-BPAP, TMOM-BP, TMOM-BPE, TMOM- BPA, TMOM-BPAF, TMO -BPAP, HML-TPPHBA, HML-TPHAP, HMOM-
- the content of the thermally crosslinkable compound is preferably 10 parts by weight or less with respect to 100 parts by weight of the component (a). Within this range, a wide range of designs can be performed more appropriately for improving sensitivity and mechanical properties of the cured film.
- the weight ratio of (b) a compound having two or more epoxy groups in one molecule and (d) a thermally crosslinkable compound is 15: 1 to 1: 1. Within this range, a high-resolution cured film with low warpage and no pattern filling due to reflow can be obtained.
- a low molecular compound having a phenolic hydroxyl group may be contained within a range that does not reduce the shrinkage residual film ratio after curing. Thereby, the development time can be shortened.
- Examples of these compounds include Bis-Z, BisP-EZ, TekP-4HBPA, TrisP-HAP, TrisP-PA, BisOCHP-Z, BisP-MZ, BisP-PZ, BisP-IPZ, BisOCP-IPZ, BisP- CP, BisRS-2P, BisRS-3P, BisP-OCHP, Methylenetris-FR-CR, BisRS-26X (trade name, manufactured by Honshu Chemical Industry Co., Ltd.), BIP-PC, BIR-PC, BIR-PTBP BIR-BIPC-F (trade name, manufactured by Asahi Organic Materials Co., Ltd.) and the like. Two or more of these may be contained.
- the content of the low molecular weight compound having a phenolic hydroxyl group is preferably 1 to 40 parts by weight per 100 parts by weight of component (a).
- the positive photosensitive resin composition of the present invention preferably contains a solvent.
- Solvents include polar aprotic solvents such as N-methyl-2-pyrrolidone, ⁇ -butyrolactone, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide; tetrahydrofuran, dioxane, propylene glycol monomethyl ether, Ethers such as propylene glycol monoethyl ether; ketones such as acetone, methyl ethyl ketone, diisobutyl ketone; ethyl acetate, butyl acetate, isobutyl acetate, propyl acetate, propylene glycol monomethyl ether acetate, 3-methyl-3-methoxybutyl acetate, etc.
- Esters ; alcohols such as ethyl lactate, methyl lactate, diacetone alcohol, and 3-methyl-3-methoxybutanol; aromatic hydrocarbons such as toluene and xylene And the like. Two or more of these may be contained.
- the content of the solvent is preferably 100 to 1500 parts by weight with respect to 100 parts by weight of component (a).
- the positive photosensitive resin composition of the present invention comprises a surfactant, an ester such as ethyl lactate or propylene glycol monomethyl ether acetate; an alcohol such as ethanol; cyclohexanone for the purpose of improving the wettability with the substrate as necessary.
- a surfactant an ester such as ethyl lactate or propylene glycol monomethyl ether acetate
- an alcohol such as ethanol
- cyclohexanone for the purpose of improving the wettability with the substrate as necessary.
- Ketones such as methyl isobutyl ketone
- ethers such as tetrahydrofuran and dioxane may be contained.
- the positive photosensitive resin composition of the present invention may contain inorganic particles.
- Preferred specific examples include, but are not limited to, silicon oxide, titanium oxide, barium titanate, alumina, talc and the like.
- the primary particle diameter of these inorganic particles is preferably 100 nm or less, more preferably 60 nm or less.
- the positive photosensitive resin composition of the present invention as a silicon component in a range not impairing the storage stability, trimethoxyaminopropylsilane, trimethoxyepoxysilane, trimethoxyvinylsilane, A silane coupling agent such as trimethoxythiolpropylsilane may be contained.
- a preferred content of the silane coupling agent is 0.01 to 5 parts by weight per 100 parts by weight of component (a).
- the positive photosensitive resin composition of the present invention may contain other alkali-soluble resins in addition to the component (a).
- alkali-soluble polybenzoxazole acrylic polymers copolymerized with acrylic acid, novolak resins, and siloxane resins.
- Such a resin is dissolved in an alkaline aqueous solution used as a developer described later.
- the viscosity of the positive photosensitive resin composition of the present invention is preferably 2 to 5000 mPa ⁇ s.
- the solid content concentration so that the viscosity is 2 mPa ⁇ s or more, it becomes easy to obtain a desired film thickness.
- the viscosity is 5000 mPa ⁇ s or less, it becomes easy to obtain a highly uniform coating film.
- a positive photosensitive resin composition having such a viscosity can be easily obtained, for example, by setting the solid content concentration to 5 to 60% by weight.
- the positive photosensitive resin composition of the present invention is applied to a substrate.
- a silicon wafer, ceramics, gallium arsenide, or the like is used as the substrate, but is not limited thereto.
- Examples of the application method include spin coating using a spinner, spray coating, and roll coating.
- the coating film thickness varies depending on the coating method, the solid content concentration of the composition, the viscosity, and the like, but is usually applied so that the film thickness after drying is 0.1 to 150 ⁇ m.
- the substrate can be pretreated with the above-mentioned silane coupling agent before applying the positive photosensitive resin composition.
- the substrate is subjected to surface treatment by a method such as spin coating, dipping, spray coating, or steam treatment. In some cases, a heat treatment is subsequently performed at 50 ° C. to 300 ° C. to advance the reaction between the substrate and the silane coupling agent.
- the substrate coated with the positive photosensitive resin composition is dried to obtain a positive photosensitive resin composition film. Drying is preferably performed using an oven, a hot plate, infrared rays, or the like in the range of 50 ° C. to 150 ° C. for 1 minute to several hours.
- the positive photosensitive resin composition film is exposed to actinic radiation through a mask having a desired pattern.
- Actinic rays used for exposure include ultraviolet rays, visible rays, electron beams, X-rays, etc., but in the present invention, they are selected from i-ray (wavelength 365 nm), h-ray (wavelength 405 nm) and g-ray (wavelength 436 nm) of a mercury lamp. It is preferred to use actinic radiation.
- the exposed portion is removed using a developer after exposure.
- an alkaline aqueous solution is preferable.
- alkaline aqueous solutions include tetramethylammonium hydroxide, diethanolamine, diethylaminoethanol, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, triethylamine, diethylamine, methylamine, dimethylamine, dimethylaminoethyl acetate, dimethylaminoethanol, dimethyl
- An aqueous solution of a compound showing alkalinity such as aminoethyl methacrylate, cyclohexylamine, ethylenediamine, hexamethylenediamine and the like is preferable.
- polar solutions such as N-methyl-2-pyrrolidone, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, ⁇ -butyrolactone, and dimethylacrylamide; methanol, ethanol Alcohols such as isopropanol; Esters such as ethyl lactate and propylene glycol monomethyl ether acetate; Ketones such as cyclopentanone, cyclohexanone, isobutyl ketone, and methyl isobutyl ketone may be added alone or in combination. Good. After development, it is preferable to rinse with water.
- alcohols such as ethanol and isopropyl alcohol
- esters such as ethyl lactate and propylene glycol monomethyl ether acetate may be added to water for rinsing treatment.
- a temperature of 100 ° C. to 200 ° C. is applied to advance the thermal cross-linking reaction of the resin film to improve heat resistance and chemical resistance.
- This heat treatment is carried out for 5 minutes to 5 hours by selecting the temperature and raising the temperature stepwise, or by selecting a temperature range and continuously raising the temperature. As an example, heat treatment is performed at 130 ° C. and 200 ° C. for 30 minutes each.
- the curing condition is preferably 150 ° C. or higher and 250 ° C. or lower. However, since the present invention provides a cured film particularly excellent in low-temperature curability, 150 ° C. or higher and 200 ° C. or lower is more preferable.
- the heat-resistant resin film formed from the positive photosensitive resin composition of the present invention is suitably used for applications such as a semiconductor passivation film, a protective film for semiconductor elements, and an interlayer insulating film for multilayer wiring for high-density mounting.
- a semiconductor passivation film e.g., a semiconductor passivation film
- a protective film for semiconductor elements e.g., a protective film for semiconductor elements
- an interlayer insulating film for multilayer wiring for high-density mounting e.g., a magnetoresistive memory (Magnetically Random Access Memory: MRAM) having low heat resistance is preferable.
- MRAM Magneticically Random Access Memory
- PFRAM Polymer Ferroelectric RAM
- PCRAM Phase Change RAM
- OFUM Ovonics Unified Memory
- a display device including a first electrode formed on a substrate and a second electrode provided to face the first electrode, specifically, for example, an LCD, an ECD, an ELD, an organic electroluminescent element It can be used for an insulating layer of the display device (organic electroluminescence device) used.
- the positive photosensitive resin composition of the present invention is used.
- the formed heat resistant resin film is used as a protective film for such an electrode and wiring, it is particularly preferably used because a pattern can be formed with high resolution without corroding the underlying copper electrode or copper wiring.
- the curing temperature is low, the stress generated between the sealing resin and the semiconductor chip is reduced, and therefore, wiring slides and passivation cracks are less likely to occur.
- varnish a positive photosensitive resin composition
- 1 ⁇ m polytetrafluoroethylene filter manufactured by Sumitomo Electric Industries, Ltd.
- the molecular weight of the component (a) was determined using a GPC (gel permeation chromatography) apparatus Waters (registered trademark) 2690-996 (manufactured by Nippon Waters Co., Ltd.), and the developing solvent was N-methyl- It was measured as 2-pyrrolidone (hereinafter referred to as NMP), and the weight average molecular weight (Mw) was calculated in terms of polystyrene.
- GPC gel permeation chromatography
- NMP 2-pyrrolidone
- the imidation rate of the component was measured with the following method. First, the powder of component (a) obtained by the method of each example was dissolved in ⁇ -butyrolactone (hereinafter referred to as GBL) at a concentration of 35% by weight, and coated and developed on a 6-inch silicon wafer Mark- 7 (manufactured by Tokyo Electron Ltd.) was used to prepare a coating film so that the film thickness after baking at 120 ° C. for 3 minutes was 5 ⁇ m. The infrared absorption spectrum of this coating film was measured using FT-720 (manufactured by Horiba, Ltd.). Next, the wafer on which the coating film was prepared was cured for 5 minutes using a 300 ° C. hot plate (Mark-7), and the infrared absorption spectrum of the cured film was measured in the same manner. The imidation ratio was determined by comparing peak intensities near 1377 cm ⁇ 1 before and after curing.
- GBL ⁇ -butyrolactone
- TMAH 2.38 wt% tetramethylammonium aqueous solution
- the developer discharge time was 10 seconds by the paddle method.
- Development with a paddle time of 40 seconds was repeated twice, then rinsed with pure water and then shaken and dried to obtain a positive-type coating film pattern.
- an inert oven CLH-21CD-S manufactured by Koyo Thermo System Co., Ltd.
- the temperature was raised to 200 ° C. at 3.5 ° C./min with an oxygen concentration of 20 ppm or less, and heat treatment was performed at 200 ° C. for 1 hour.
- the wafer was taken out, and the pattern was observed at a magnification of 20 times with an FDP microscope MX61 (manufactured by Olympus Corporation), and the minimum dimension resolved by line and space was defined as the resolution.
- a film was obtained by peeling the cured film on the silicon wafer obtained in (4) with hydrofluoric acid.
- a TGA measurement sample was prepared by packing 10 mg of the obtained single film in an Al clamp cell, and thermogravimetric while using a TGA-50 (manufactured by Shimadzu Corporation) while raising the temperature by 10 ° C. per minute under a nitrogen atmosphere. Measurements were made. With respect to the temperature reduced by 5% from the weight at 200 ° C., heat resistance is insufficient when it is less than 320 ° C. (C), heat resistance is good when it is 320 ° C. or more and less than 350 ° C. (B), 350 ° C. or more The heat resistance was very good (A).
- Synthesis Example 1 Synthesis of quinonediazide compound Under a dry nitrogen stream, TrisP-PA (trade name, manufactured by Honshu Chemical Industry Co., Ltd.) 21.22 g (0.05 mol) and 5-naphthoquinonediazidesulfonyl acid chloride 26.86 g (0. 10 mol), 13.43 g (0.05 mol) of 4-naphthoquinonediazide sulfonyl chloride was dissolved in 50 g of 1,4-dioxane and brought to room temperature. To this, 15.18 g of triethylamine mixed with 50 g of 1,4-dioxane was added dropwise so that the temperature inside the system would not exceed 35 ° C.
- TrisP-PA trade name, manufactured by Honshu Chemical Industry Co., Ltd.
- Example 1 29.30 g (0.08 mol) of 2,2-bis (3-amino-4-hydroxyphenyl) hexafluoropropane (hereinafter referred to as BAHF), 1,3-bis (3-aminopropyl) under a dry nitrogen stream 1.24 g (0.005 mol) of tetramethyldisiloxane and 3.27 g (0.03 mol) of 4-aminophenol (manufactured by Tokyo Chemical Industry Co., Ltd.) as an end-capping agent were added to N-methyl-2-pyrrolidone. Dissolved in 80 g (hereinafter referred to as NMP).
- NMP dissolved in 80 g
- Example 2 A varnish was prepared in the same manner as in Example 1 except that 1.0 g of BEO-60E (manufactured by Shin Nippon Rika Co., Ltd.) was used as the component (b), and evaluation was performed by the above method.
- BEO-60E manufactured by Shin Nippon Rika Co., Ltd.
- Example 3 A varnish was prepared in the same manner as in Example 1 except that BEO-60E (manufactured by Shin Nippon Rika Co., Ltd.) was used as the component (b), and evaluation was performed by the above method.
- BEO-60E manufactured by Shin Nippon Rika Co., Ltd.
- Example 4 A varnish was prepared in the same manner as in Example 1, except that 5.0 g of Epicron (registered trademark) EXA-4822 (manufactured by Dainippon Ink & Chemicals, Inc.) was used as the component (b). I did it.
- Epicron registered trademark
- EXA-4822 manufactured by Dainippon Ink & Chemicals, Inc.
- Example 5 Under a dry nitrogen stream, BAHF 22.00 g (0.06 mol), D-400 (manufactured by HUNTSMAN) 8.00 g (0.02 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane 1.24 g (0.005 mol) and 3.27 g (0.03 mol) of 4-aminophenol (manufactured by Tokyo Chemical Industry Co., Ltd.) as an end-capping agent were dissolved in 80 g of NMP. To this, 31.2 g (0.1 mol) of ODPA was added together with 20 g of NMP, reacted at 60 ° C. for 1 hour, and then stirred at 180 ° C. for 4 hours.
- the solution was poured into 3 L of water to obtain a white precipitate.
- This precipitate was collected by filtration, washed with water three times, and then dried for 20 hours in a vacuum dryer at 80 ° C. to obtain an alkali-soluble polyimide resin (A-2) powder.
- the resin (A-2) had a weight average molecular weight of 23,000 and an imidation ratio of 90%.
- 10 g of the obtained resin (A-2) is 3.0 g of BEO-60E as the component (b), 2.0 g of the quinonediazide compound (C) obtained in Synthesis Example 1 as the component (c), and 10 g of GBL as the solvent.
- a varnish was prepared and evaluated by the above method.
- Example 6 A varnish was prepared in the same manner as in Example 5 except that Epicron (registered trademark) EXA-4880 (manufactured by Dainippon Ink & Chemicals, Inc.) was used as the component (b), and evaluation was performed by the above method.
- Epicron registered trademark
- EXA-4880 manufactured by Dainippon Ink & Chemicals, Inc.
- Example 7 A varnish was prepared in the same manner as in Example 5 except that Epicron (registered trademark) EXA-4822 (manufactured by Dainippon Ink & Chemicals, Inc.) was used as the component (b), and evaluation was performed by the above method.
- Epicron registered trademark
- EXA-4822 manufactured by Dainippon Ink & Chemicals, Inc.
- Example 8 Under a dry nitrogen stream, BAHF 22.00 g (0.06 mol), ED-600 (manufactured by HUNTSMAN) 12.00 g (0.02 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane 1.24 g (0.005 mol) and 3.27 g (0.03 mol) of 4-aminophenol (manufactured by Tokyo Chemical Industry Co., Ltd.) as an end-capping agent were dissolved in 80 g of NMP. To this, 31.2 g (0.1 mol) of ODPA was added together with 20 g of NMP, reacted at 60 ° C. for 1 hour, and then stirred at 180 ° C. for 4 hours.
- the solution was poured into 3 L of water to obtain a white precipitate.
- the precipitate was collected by filtration, washed with water three times, and then dried for 20 hours in a vacuum dryer at 80 ° C. to obtain an alkali-soluble polyimide resin (A-3) powder.
- the resin (A-3) had a weight average molecular weight of 26000 and an imidation ratio of 95%.
- 10 g of the obtained resin (A-3) is 3.0 g of EXA-4822 as the component (b), 2.0 g of the quinonediazide compound (C) obtained in Synthesis Example 1 as the component (c), and 10 g of GBL as the solvent.
- a varnish was prepared and evaluated by the above method.
- Example 9 Under a dry nitrogen stream, BAHF 22.00 g (0.06 mol), ED-900 (manufactured by HUNTSMAN Co., Ltd.) 18.00 g (0.02 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane 1.24 g (0.005 mol) and 3.27 g (0.03 mol) of 4-aminophenol (manufactured by Tokyo Chemical Industry Co., Ltd.) as an end-capping agent were dissolved in 80 g of NMP. To this, 31.2 g (0.1 mol) of ODPA was added together with 20 g of NMP, reacted at 60 ° C. for 1 hour, and then stirred at 180 ° C. for 4 hours.
- the solution was poured into 3 L of water to obtain a white precipitate.
- the precipitate was collected by filtration, washed with water three times, and then dried for 20 hours in a vacuum dryer at 80 ° C. to obtain an alkali-soluble polyimide resin (A-4) powder.
- the resin (A-4) had a weight average molecular weight of 25,000 and an imidation ratio of 89%.
- 10 g of the obtained resin (A-4) is 3.0 g of EXA-4822 as the component (b), 2.0 g of the quinonediazide compound (C) obtained in Synthesis Example 1 as the component (c), and 10 g of GBL as the solvent.
- a varnish was prepared and evaluated by the above method.
- Example 10 A varnish was prepared in the same manner as in Example 8 except that EXA-4880 was used as the component (b) and 1.0 g of MW-100LM (manufactured by Sanwa Chemical Co., Ltd.) was used as the component (d). Evaluation was carried out by the method.
- Example 11 A varnish was prepared in the same manner as in Example 9 except that BEO-60E was used as the component (b) and 1.0 g of HMOM-TPHAP (manufactured by Honshu Chemical Industry Co., Ltd.) was used as the component (d). Evaluation was carried out by the method.
- Comparative Example 1 A varnish was prepared in the same manner as in Example 9 except that the component (b) was not used and 1.0 g of MW-100LM was used as the component (d), and evaluation was performed by the above method.
- Comparative Example 2 A varnish was prepared in the same manner as in Example 9 except that the component (b) was not used and 1.0 g of HMOM-TPHAP was used as the component (d), and evaluation was performed by the above method.
- Comparative Example 3 A varnish was prepared in the same manner as in Example 9 except that 6.0 g of BEO-60E (manufactured by Shin Nippon Rika Co., Ltd.) was used as the component (b), and evaluation was performed by the above method.
- BEO-60E manufactured by Shin Nippon Rika Co., Ltd.
- Comparative Example 4 A varnish was prepared in the same manner as in Example 9 except that 6.0 g of EP-4003S was used as the component (b), and evaluation was performed by the above method.
- the present invention can provide a positive photosensitive resin composition capable of obtaining a high-resolution cured film with low warpage and no pattern filling caused by reflow during low-temperature heat treatment at 200 ° C. or lower.
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Abstract
Description
(a)成分の分子量は、GPC(ゲルパーミエーションクロマトグラフィー)装置Waters(登録商標)2690-996(日本ウォーターズ(株)製)を用い、展開溶媒をN-メチル-2-ピロリドン(以降NMPと呼ぶ)として測定し、ポリスチレン換算で重量平均分子量(Mw)を計算した。
(a)成分のイミド化率は、次の方法で測定した。まず、各実施例の方法で得られた(a)成分の粉体を35重量%の濃度でγ-ブチロラクトン(以降GBLと呼ぶ)に溶解させ、6インチのシリコンウェハー上に塗布現像装置Mark-7(東京エレクトロン(株)製)を用いて120℃で3分間のベーク後の膜厚が5μmになるように塗膜を作製した。この塗膜の赤外吸収スペクトルをFT-720((株)堀場製作所製)を用いて測定した。次に塗膜を作製したウェハーを300℃のホットプレート(Mark-7)を用いて5分間のキュアを行ない、同様の方法でキュア膜の赤外吸収スペクトルを測定した。キュア前後の1377cm-1付近のピーク強度を比較することによって、イミド化率を求めた。
膜厚は光干渉式膜厚測定装置ラムダエースSTM-602(大日本スクリーン製造(株)製)を使用して、屈折率1.629で測定した。
ワニスを、6インチのシリコンウェハー上に120℃で3分間のベーク後の膜厚が5μmになるように、塗布現像装置Mark-7(東京エレクトロン(株)製)を用いてスピンコート法で塗布およびプリベークを行なった。露光機i線ステッパーDSW-8000(GCA社製)に、評価用のパターンが切られたレチクルをセットし、500mJ/cm2の露光量で塗膜を露光した。露光後、Mark-7の現像装置を用いて、2.38重量%のテトラメチルアンモニウム水溶液(以下TMAH、多摩化学工業(株)製)を用いて、パドル法で現像液の吐出時間10秒、パドル時間40秒の現像を2回繰り返し、その後純水でリンス後、振り切り乾燥し、ポジ型の塗膜パターンを得た。イナートオーブンCLH-21CD-S(光洋サーモシステム(株)製)を用いて、酸素濃度20ppm以下で3.5℃/分で200℃まで昇温し、200℃で1時間加熱処理を行なった。温度が50℃以下になったところでウェハーを取り出し、パターンをFDP顕微鏡MX61(オリンパス(株)製)の倍率20倍で観察し、ラインアンドスペースが解像している最小の寸法を解像度とした。
6インチのシリコンウェハーの反り応力を、ストレス装置FLX2908(KLA Tencor社製)を用いて測定した。次に、シリコンウェハーに、ワニスを120℃で3分間のプリベーク後の膜厚が10μmとなるように塗布現像装置Mark-7を用いてスピンコート法で塗布およびプリベークした後、イナートオーブンCLH-21CD-S(光洋サーモシステム(株)製)を用いて、酸素濃度20ppm以下で3.5℃/分で200℃まで昇温し、200℃で1時間加熱処理を行なった。温度が50℃以下になったところでシリコンウェハーを取り出し、シリコンウェハー上の硬化膜の膜厚を測定後、硬化膜の反り応力を上記のストレス装置を用いて測定した。
(4)で得られたシリコンウェハー上の硬化膜をフッ酸によって剥離することで、フィルムを得た。得られた単膜フィルム10mgをAlクランプセルに詰めてTGA測定サンプルを作成し、TGA-50(島津製作所製)を用いて、窒素雰囲気下で、1分間に10℃昇温しながら、熱重量測定を行った。200℃における重量から5%重量減少した温度について、320℃未満であるものを耐熱性が不十分(C)、320℃以上350℃未満であるものを耐熱性が良好(B)、350℃以上であるものを耐熱性が非常に良好(A)とした。
乾燥窒素気流下、TrisP-PA(商品名、本州化学工業(株)製)21.22g(0.05モル)と5-ナフトキノンジアジドスルホニル酸クロリド26.86g(0.10モル)、4-ナフトキノンジアジドスルホニル酸クロリド13.43g(0.05モル)を1,4-ジオキサン50gに溶解させ、室温にした。ここに、1,4-ジオキサン50gと混合したトリエチルアミン15.18gを、系内が35℃以上にならないように滴下した。滴下後30℃で2時間撹拌した。トリエチルアミン塩を濾過し、ろ液を水に投入した。その後、析出した沈殿をろ過で集めた。この沈殿を真空乾燥機で乾燥させ、下記式で表されるキノンジアジド化合物(C)を得た。
乾燥窒素気流下、2,2-ビス(3-アミノ-4-ヒドロキシフェニル)ヘキサフルオロプロパン(以降BAHFと呼ぶ)29.30g(0.08モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン1.24g(0.005モル)、末端封止剤として、4-アミノフェノール(東京化成工業(株)製)3.27g(0.03モル)をN-メチル-2-ピロリドン(以降NMPと呼ぶ)80gに溶解させた。ここにビス(3,4-ジカルボキシフェニル)エーテル二無水物(以降ODPAと呼ぶ、マナック(株)製)31.2g(0.1モル)をNMP20gとともに加えて、60℃で1時間反応させ、次いで180℃で4時間撹拌した。撹拌終了後、溶液を水3Lに投入して白色沈殿を得た。この沈殿を濾過で集めて、水で3回洗浄した後、80℃の真空乾燥機で20時間乾燥し、アルカリ可溶性ポリイミド樹脂(A-1)の粉末を得た。上記の方法で評価した結果、樹脂(A-1)の重量平均分子量は26000、イミド化率は92%だった。
(b)成分としてBEO-60E(新日本理化株式会社製)を1.0g用いた以外は実施例1と同様にしてワニスを作製し、上記の方法で評価を行なった。
(b)成分としてBEO-60E(新日本理化株式会社製)を用いた以外は実施例1と同様にしてワニスを作製し、上記の方法で評価を行なった。
(b)成分としてエピクロン(登録商標)EXA-4822(大日本インキ化学工業(株)製)を5.0g用いた以外は実施例1と同様にしてワニスを作製し、上記の方法で評価を行なった。
乾燥窒素気流下、BAHF22.00g(0.06モル)、D-400(HUNTSMAN(株)製)8.00g(0.02モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン1.24g(0.005モル)および末端封止剤として、4-アミノフェノール(東京化成工業(株)製)3.27g(0.03モル)をNMP80gに溶解させた。ここにODPA31.2g(0.1モル)をNMP20gとともに加えて、60℃で1時間反応させ、次いで180℃で4時間撹拌した。撹拌終了後、溶液を水3Lに投入して白色沈殿を得た。この沈殿を濾過で集めて、水で3回洗浄した後、80℃の真空乾燥機で20時間乾燥し、アルカリ可溶性ポリイミド樹脂(A-2)の粉末を得た。上記の方法で評価した結果、樹脂(A-2)の重量平均分子量は23000、イミド化率は90%だった。
(b)成分としてエピクロン(登録商標)EXA-4880(大日本インキ化学工業(株)製)を用いた以外は実施例5と同様にしてワニスを作製し、上記の方法で評価を行なった。
(b)成分としてエピクロン(登録商標)EXA-4822(大日本インキ化学工業(株)製)を用いた以外は実施例5と同様にしてワニスを作製し、上記の方法で評価を行なった。
乾燥窒素気流下、BAHF22.00g(0.06モル)、ED-600(HUNTSMAN(株)製)12.00g(0.02モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン1.24g(0.005モル)および末端封止剤として、4-アミノフェノール(東京化成工業(株)製)3.27g(0.03モル)をNMP80gに溶解させた。ここにODPA31.2g(0.1モル)をNMP20gとともに加えて、60℃で1時間反応させ、次いで180℃で4時間撹拌した。撹拌終了後、溶液を水3Lに投入して白色沈殿を得た。この沈殿を濾過で集めて、水で3回洗浄した後、80℃の真空乾燥機で20時間乾燥し、アルカリ可溶性ポリイミド樹脂(A-3)の粉末を得た。上記の方法で評価した結果、樹脂(A-3)の重量平均分子量は26000、イミド化率は95%だった。
乾燥窒素気流下、BAHF22.00g(0.06モル)、ED-900(HUNTSMAN(株)製)18.00g(0.02モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン1.24g(0.005モル)および末端封止剤として、4-アミノフェノール(東京化成工業(株)製)3.27g(0.03モル)をNMP80gに溶解させた。ここにODPA31.2g(0.1モル)をNMP20gとともに加えて、60℃で1時間反応させ、次いで180℃で4時間撹拌した。撹拌終了後、溶液を水3Lに投入して白色沈殿を得た。この沈殿を濾過で集めて、水で3回洗浄した後、80℃の真空乾燥機で20時間乾燥し、アルカリ可溶性ポリイミド樹脂(A-4)の粉末を得た。上記の方法で評価した結果、樹脂(A-4)の重量平均分子量は25000、イミド化率は89%だった。
(b)成分としてEXA-4880を用い、さらに(d)成分としてMW-100LM((株)三和ケミカル製)1.0gを用いた以外は実施例8と同様にしてワニスを作製し、上記の方法で評価を行なった。
(b)成分としてBEO-60Eを用い、さらに(d)成分としてHMOM-TPHAP(本州化学工業(株)製)1.0gを用いた以外は実施例9と同様にしてワニスを作製し、上記の方法で評価を行なった。
(b)成分を用いず、また(d)成分としてMW-100LM 1.0gを用いた以外は実施例9と同様にしてワニスを作製し、上記の方法で評価を行なった。
(b)成分を用いず、また(d)成分としてHMOM-TPHAP1.0gを用いた以外は実施例9と同様にしてワニスを作製し、上記の方法で評価を行なった。
(b)成分としてBEO-60E(新日本理化株式会社製)6.0gを用いた以外は実施例9と同様にしてワニスを作製し、上記の方法で評価を行なった。
(b)成分としてEP-4003S 6.0gを用いた以外は実施例9と同様にしてワニスを作製し、上記の方法で評価を行なった。
Claims (8)
- (a)アルカリ可溶性ポリイミド、(b)一分子中にエポキシ基を2以上有する化合物、(c)光酸発生剤を含有し、(a)アルカリ可溶性ポリイミド100重量部に対し(b)一分子中にエポキシ基を2以上有する化合物の含有量が5~50重量部であるポジ型感光性樹脂組成物。
- (b)一分子中にエポキシ基を2以上有する化合物がポリアルキレンオキサイド基を含有する請求項1に記載のポジ型感光性樹脂組成物。
- (a)アルカリ可溶性ポリイミドがポリアルキレンオキサイド基を含有するジアミン残基および/またはポリアルキレンオキサイド基を含有するカルボン酸残基を含有する請求項1または2に記載のポジ型感光性樹脂組成物。
- (a)アルカリ可溶性ポリイミドに含まれる全カルボン酸残基と全ジアミン残基を合わせたもの全体を100モル%として、ポリアルキレンオキサイド基を含有するジアミン残基およびポリアルキレンオキサイド基を含有するカルボン酸残基を合わせた残基の割合が5~20モル%である請求項3に記載のポジ型感光性樹脂組成物。
- ポリアルキレンオキサイド基がポリエチレンオキサイド基である請求項2~4のいずれかに記載のポジ型感光性樹脂組成物。
- さらに(d)熱架橋性化合物を含有し、(a)アルカリ可溶性ポリイミド100重量部に対し(d)の含有量が1~15重量部である請求項1~5のいずれかに記載のポジ型感光性樹脂組成物。
- (b)一分子中にエポキシ基を2以上有する化合物と(d)熱架橋性化合物の重量比が、15:1~1:1である請求項1~6のいずれかに記載のポジ型感光性樹脂組成物。
- (d)熱架橋性化合物がアルコキシメチル基またはメチロール基を少なくとも2つ有する化合物である請求項6または7に記載のポジ型感光性樹脂組成物。
Priority Applications (8)
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US14/422,572 US20150219991A1 (en) | 2012-09-24 | 2012-09-24 | Positive-type photosensitive resin composition |
PT128847555T PT2902846T (pt) | 2012-09-24 | 2012-09-24 | Composição de resina fotossensível positiva |
KR1020157009233A KR101969197B1 (ko) | 2012-09-24 | 2012-09-24 | 포지티브형 감광성 수지 조성물 |
CN201280075939.3A CN104641291B (zh) | 2012-09-24 | 2012-09-24 | 正型感光性树脂组合物 |
PCT/JP2012/074367 WO2014045434A1 (ja) | 2012-09-24 | 2012-09-24 | ポジ型感光性樹脂組成物 |
SG11201501598TA SG11201501598TA (en) | 2012-09-24 | 2012-09-24 | Positive photosensitive resin composition |
EP12884755.5A EP2902846B1 (en) | 2012-09-24 | 2012-09-24 | Positive photosensitive resin composition |
JP2013506966A JP6102736B2 (ja) | 2012-09-24 | 2012-09-24 | ポジ型感光性樹脂組成物 |
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EP (1) | EP2902846B1 (ja) |
JP (1) | JP6102736B2 (ja) |
KR (1) | KR101969197B1 (ja) |
CN (1) | CN104641291B (ja) |
PT (1) | PT2902846T (ja) |
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EP3287495A4 (en) * | 2015-04-24 | 2018-10-17 | Toray Industries, Inc. | Resin composition, method for manufacturing semiconductor element using same, and semiconductor device |
EP3495434A1 (en) | 2017-12-05 | 2019-06-12 | Shin-Etsu Chemical Co., Ltd. | Novel tetracarboxylic dianhydride, polyimide resin and method for producing the same, photosensitive resin compositions, patterning process, method for forming cured film, interlayer insulating film, surface protective film, and electronic parts |
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SG11201807054RA (en) * | 2016-03-28 | 2018-09-27 | Toray Industries | Resin composition, cured relief pattern thereof, and method for manufacturing semiconductor electronic component or semiconductor equipment using the same |
CN116414000A (zh) * | 2023-04-14 | 2023-07-11 | 江苏艾森半导体材料股份有限公司 | 感光性聚酰亚胺组合物、固化物和电子部件 |
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Also Published As
Publication number | Publication date |
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CN104641291B (zh) | 2017-12-12 |
JP6102736B2 (ja) | 2017-03-29 |
PT2902846T (pt) | 2019-12-18 |
US20150219991A1 (en) | 2015-08-06 |
EP2902846A1 (en) | 2015-08-05 |
EP2902846A4 (en) | 2016-06-01 |
EP2902846B1 (en) | 2019-11-20 |
KR20150063424A (ko) | 2015-06-09 |
CN104641291A (zh) | 2015-05-20 |
SG11201501598TA (en) | 2015-04-29 |
KR101969197B1 (ko) | 2019-04-15 |
JPWO2014045434A1 (ja) | 2016-08-18 |
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