WO2019111796A1 - 感光性樹脂組成物、ドライフィルムレジスト及びそれらの硬化物 - Google Patents
感光性樹脂組成物、ドライフィルムレジスト及びそれらの硬化物 Download PDFInfo
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- WO2019111796A1 WO2019111796A1 PCT/JP2018/043986 JP2018043986W WO2019111796A1 WO 2019111796 A1 WO2019111796 A1 WO 2019111796A1 JP 2018043986 W JP2018043986 W JP 2018043986W WO 2019111796 A1 WO2019111796 A1 WO 2019111796A1
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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
- G03F7/075—Silicon-containing compounds
- G03F7/0752—Silicon-containing compounds in non photosensitive layers or as additives, e.g. for dry lithography
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- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
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- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
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- B32B23/08—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
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- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/32—Epoxy compounds containing three or more epoxy groups
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- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
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- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
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- 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
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Definitions
- the present invention relates to an insulating layer of electronic components such as MEMS (micro electronic mechanical system) parts, micro machine parts, microfluidic parts, ⁇ -TAS (micro total analysis system) parts, inkjet printhead parts, micro reactor parts, capacitors and inductors.
- MEMS micro electronic mechanical system
- ⁇ -TAS micro total analysis system
- LIGA parts LIGA parts, molds and stamps for micro injection molding and heat embossing, screens or stencils for micro printing applications, MEMS sensors mounted on mobile terminals and IoT parts, package parts such as semiconductor devices, frequency filter devices, bio MEMS and bio
- a photosensitive resin which is useful in the fabrication of photonic devices and printed wiring boards, which is excellent in resolution and whose cured product has extremely low wet heat elution contamination and excellent adhesion to a substrate after a wet heat test It relates to a composition.
- Photolithographically processable resists are widely used in semiconductor, MEMS and micromachine applications. In such applications, photolithographic processing is accomplished by selectively exposing exposed or unexposed areas by patterning exposure on a substrate and then developing with a developer.
- Conventional positive resists based on the diazonaphthoquinone-novolak combination are not suitable for applications where thick films are required.
- This thickness constraint results from the relatively high absorbance of the diazonaphthoquinone type photoactive compound at wavelengths in the near infrared region (350 to 450 nm) of the optical spectrum typically used to expose the resist.
- a photosensitive epoxy resin composition capable of forming a thick film pattern containing a polyfunctional epoxy resin and a photopolymerization initiator has been proposed as a negative resist that solves the problem of the positive resist (see Patent Document 1). ).
- Patent Document 1 discloses a photosensitive resin composition containing a photopolymerization initiator of a specific structure which is an antimony compound. The said document describes the method of improving characteristics, such as favorable image resolution and adhesiveness, using the photoinitiator of such a specific structure.
- the photoinitiator containing an antimony fluoride type compound has comparatively high sensitivity, it has the problem of toxicity of antimony.
- Many antimony compounds are designated as harmful substances and not only restricted for use, but also depending on processing conditions, hydrogen fluoride is liberated from the antimony fluoride-based compounds and causes corrosion of metal parts. Therefore, there is a disadvantage that the process of avoiding the corrosion failure must be added.
- PCT test a pressure cooker test
- Patent Documents 2 and 3 propose photosensitive resin compositions using a cationic photopolymerization initiator of a non-antimony compound having a specific structure in which the central element of the anion part is boron or phosphorus.
- a photosensitive resin composition using a photocationic polymerization initiator of a non-antimony compound showed a sensitivity equal to or higher than a photosensitive resin composition using a photocationic polymerization initiator of an antimony compound It is described.
- the extracted water exhibits high conductivity and low pH.
- Such a cured product is not only insufficient in water resistance and moisture heat resistance, but may cause contamination with an acidic eluate in a moist heat environment or a water resistant environment. Therefore, the photosensitive resin compositions of these documents are produced.
- Is installed in applications such as microfluidic components that use water-based fluids, ⁇ -TAS (micro total analysis system) components and inkjet nozzle components, and in portable information terminals that require high moisture resistance during resin encapsulation.
- applications such as frequency filter devices and electronic package applications such as sensors mounted on IoT components.
- the present invention has been made in view of the above circumstances, and provides a photosensitive resin composition having good image resolution, reducing the wet heat elution contamination of the cured product, and having good wet heat adhesion.
- the purpose is
- a photosensitive resin composition comprising (A) a cationic photopolymerization initiator and (B) an epoxy compound
- the (A) photocationic polymerization initiator (A) has the following formula (1):
- R 1 to R 4 each independently represent an alkyl group having 1 to 18 carbon atoms or an aryl group having 6 to 14 carbon atoms, provided that at least one of R 1 to R 4 has a carbon number A salt consisting of the anion represented by the aryl group of 6 to 14) and a cation
- the (B) epoxy compound is Following formula (2)
- R 5 represents independently represent a glycidyl group or a hydrogen atom, at least two of R 5 existing in plural is .k average repeating number in a by a 0 to 30 glycidyl groups
- An epoxy compound (b-1) represented by Following formula (3) In formula (3), each R 6 independently represents a hydrogen
- R 7 represents a hydrogen atom or a glycidyl group, and a plurality of R 7 are present) And each R 7 may be the same or different, m is an average number of repetitions and represents a real number in the range of 0 to 30.)
- Epoxy compound (b-2) represented by Following formula (4) (In formula (4), R 8 each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
- N is an average number of repetitions and represents a real number in the range of 0 to 30.
- Epoxy compound (b-3) represented by Following formulas (5) to (7) (In formula (6), each R 9 independently represents a hydrogen atom or a glycidyl group.) (In formula (7), each R 10 independently represents a hydrogen atom or a glycidyl group.)
- At least one epoxy compound (b-4) selected from the group of epoxy compounds represented by Following formula (8) and / or formula (9) And a compound represented by The following formula (10) and / or the formula (11) Epoxy compound (b-5) which is a co-condensate with a compound represented by Following formula (12) (In formula (12), each R 12 independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
- Epoxy compound (b-6) represented by Following formula (13) (In the formula (13), q is an average number of repetitions and represents a real number in the range of 0 to 5.)
- Epoxy compound (b-9) represented by the following formula (16)
- t, u and v are average repetition numbers and each represents a real number satisfying the relationship 2 ⁇ t + u + v ⁇ 60.
- a photosensitive resin composition comprising one or more epoxy compounds selected from the group consisting of epoxy compounds (b-10) represented by [2].
- the photosensitive resin composition of the present invention is excellent in resolution, and the cured product of the composition is extremely low in wet heat elution contamination and excellent in adhesion to a substrate after a wet heat test. It is suitably used for MEMS parts and the like used in applications where high moisture and heat resistance is required during resin sealing.
- the present invention will be described below.
- the (A) photo cationic polymerization initiator contained in the photosensitive resin composition of the present invention contains a salt composed of the anion represented by the above formula (1) and a cation.
- R 1 to R 4 each independently represent an alkyl group having 1 to 18 carbon atoms or an aryl group having 6 to 14 carbon atoms, but at least one of R 1 to R 4 has a carbon number 6 to 14 represent an aryl group. That is, R 1 to R 4 in the formula (1) are any one of the following combinations.
- the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in the formula (1) is not limited to any of linear, branched or cyclic. Specific examples thereof include methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, t-butyl, n-pentyl, iso-pentyl and t-pentyl Group, sec-pentyl group, n-hexyl group, iso-hexyl group, n-heptyl group, sec-heptyl group, n-octyl group, n-nonyl group, sec-nonyl group, n-decyl group, n-undecyl group Groups, n-dodecyl group, n-tridecyl group, n-tetradecyl group, n-pentadecyl group, n-hexa
- the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in the formula (1) may have a substituent.
- the "alkyl group having a substituent” as referred to herein means an alkyl group in which a hydrogen atom which the alkyl group has in its structure is substituted by a substituent.
- the position of the substituent and the number of substituents are not particularly limited.
- the number of carbon atoms of the alkyl group represented by R 1 to R 4 does not include the number of carbon atoms that the substituent has.
- an ethyl group having a phenyl group as a substituent it is regarded as an alkyl group having 2 carbon atoms.
- the substituent which the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in formula (1) may have is not particularly limited (except for the alkyl group), but it may be, for example, an alkoxy group, an aromatic group Groups, heterocyclic groups, halogen atoms, hydroxyl groups, mercapto groups, nitro groups, alkyl substituted amino groups, aryl substituted amino groups, unsubstituted amino groups (NH 2 groups), cyano groups, isocyano groups and the like.
- the alkoxy group which the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in Formula (1) may have as a substituent is a substituent in which an oxygen atom and an alkyl group are bonded.
- alkyl group having an alkoxy group for example, the same thing can be mentioned alkyl groups described in the section of the alkyl group of R 1 to carbon atoms R 4 represents 1 to 18 of formula (1).
- the aromatic group which the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in formula (1) may optionally have as substituents has one hydrogen atom removed from the aromatic ring of the aromatic compound It is not particularly limited as long as it is a residue.
- phenyl group biphenyl group, terphenyl group, quarter phenyl group, tolyl group, indenyl group, naphthyl group, anthryl group, fluorenyl group, pyrenyl group, phenanthenyl group, mesyl group and the like can be mentioned.
- the heterocyclic group which the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in the formula (1) may have as a substituent is a heterocyclic compound in which one hydrogen atom is removed from the heterocyclic ring It is not particularly limited as long as it is a residue.
- halogen atom which the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in formula (1) may have as a substituent include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. It can be mentioned.
- the alkyl-substituted amino group which the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in formula (1) may have as a substituent is any of monoalkyl-substituted amino group and dialkyl-substituted amino group
- the alkyl group in these alkyl substituted amino groups which is not limited, for example, the same as the alkyl group described in the section of the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in formula (1) can be mentioned.
- the aryl-substituted amino group which the alkyl group having 1 to 18 carbon atoms which R 1 to R 4 in formula (1) represents may have as a substituent is any of a monoaryl-substituted amino group and a diaryl-substituted amino group. It is not restricted. Examples of the aryl group in these aryl-substituted amino groups include the same as the aromatic group which the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in formula (1) may optionally have as a substituent. .
- aryl group having 6 to 14 carbon atoms represented by R 1 to R 4 in formula (1) include alkyl groups having 1 to 18 carbon atoms represented by R 1 to R 4 in formula (1). And the same as the aromatic group as the substituent which may be mentioned.
- the aryl group having 6 to 14 carbon atoms represented by R 1 to R 4 in the formula (1) may have a substituent.
- the "aryl group which has a substituent" said here means the aryl group by which the hydrogen atom which the aryl group has in the structure was substituted by the substituent.
- the position of the substituent and the number of substituents are not particularly limited.
- the number of carbon atoms of the aryl group represented by R 1 to R 4 does not include the number of carbon atoms that the substituent has.
- the number of carbon atoms of the aryl group represented by R 1 to R 4 does not include the number of carbon atoms that the substituent has.
- a phenyl group having an ethyl group as a substituent it is regarded as an aryl group having 6 carbon atoms.
- the substituent which the aryl group having 6 to 14 carbon atoms represented by R 1 to R 4 in Formula (1) may have is not particularly limited, and examples thereof include an alkyl group, an alkoxy group, an aromatic group, and a heterocyclic group. And a halogen atom, a hydroxyl group, a mercapto group, a nitro group, an alkyl substituted amino group, an aryl substituted amino group, an unsubstituted amino group (NH 2 group), a cyano group, an isocyano group and the like.
- Examples of the alkyl group which the aryl group having 6 to 14 carbon atoms represented by R 1 to R 4 in Formula (1) may have as a substituent include, for example, the carbon numbers represented by R 1 to R 4 in Formula (1) The same as the alkyl group described in the section of the alkyl group of 1 to 18 can be mentioned.
- Alkoxy group having 6 to 14 carbon atoms represented by R 1 to R 4 in formula (1) which may have as a substituent, an aromatic group, a heterocyclic group, a halogen atom, an alkyl substituted amino group and an aryl group
- the substituted amino group include an alkoxy group, an aromatic group and a heterocyclic group which the alkyl group having 1 to 18 carbon atoms represented by R 1 to R 4 in formula (1) may have as a substituent, The same as the halogen atom, the alkyl substituted amino group and the aryl substituted amino group can be mentioned.
- R 1 to R 4 in the formula (1) are preferably an alkyl group having 1 to 18 carbon atoms having a halogen atom as a substituent or an aryl group having 6 to 14 carbon atoms having a halogen atom as a substituent, It is more preferable that it is a C1-C18 alkyl group which has a fluorine atom as a substituent, or a C6-C14 aryl group which has a fluorine atom as a substituent.
- the cation forming a salt with the anion represented by the formula (1) is not particularly limited as long as it is a monovalent cation, but oxonium ion, ammonium ion, phosphonium ion, sulfonium ion or iodonium ion is preferable, and ammonium ion More preferred are phosphonium ions, sulfonium ions or iodonium ions, and more preferred are sulfonium ions or iodonium ions.
- oxonium ion examples include oxonium such as trimethyloxonium, diethylmethyl oxonium, triethyl oxonium and tetramethylene methyl oxonium, 4-methylpyrilinium, 2,4,6-trimethylpyrilinium, 2,6-di Pyririnium such as -tert-butylpyrilinium and 2,6-diphenylpyrilinium; chromenium such as 2,4-dimethylchromium and 1,3-dimethylisochromium; and isochromenium.
- ammonium ions include pyrrolidinium such as N, N-dimethylpyrrolidinium, N-ethyl-N-methylpyrrolidinium and N, N-diethylpyrrolidinium, N, N'-dimethylimidazolinium, N, Imidazolinium such as N'-diethylimidazolinium, N-ethyl-N'-methylimidazolinium, 1,3,4-trimethylimidazolinium and 1,2,3,4-tetramethylimidazolinium; Tetrahydropyrimidinium such as N, N'-dimethyltetrahydropyrimidinium, morpholinium such as N, N'-dimethylmorpholinium, piperidinium such as N, N'-diethylpiperidinium, N-methylpyridinium, N- Pyridinium such as benzyl pyridinium and N-phenacyl pyridinium, N, N'-di Imidazolium such
- phosphonium ions include tetraarylphosphoniums such as tetraphenylphosphonium, tetra-p-tolylphosphonium, tetrakis (2-methoxyphenyl) phosphonium, tetrakis (3-methoxyphenyl) phosphonium and tetrakis (4-methoxyphenyl) phosphonium; Triarylphosphoniums such as phenylbenzyl phosphonium, triphenyl phenacyl phosphonium, triphenyl methyl phosphonium and triphenyl butyl phosphonium, triethyl benzyl phosphonium, tributyl benzyl phosphonium, tetraethyl phosphonium, tetrabutyl phosphonium, tetrahexyl phosphonium, triethyl phenacyl phosphonium and tributyl Tetraalkyl such as
- sulfonium ions include triphenylsulfonium, tri-p-tolylsulfonium, tri-o-tolylsulfonium, tris (4-methoxyphenyl) sulfonium, 1-naphthyldiphenylsulfonium, 2-naphthyldiphenylsulfonium, tris (4-fluoro) Phenyl) sulfonium, tri-1-naphthylsulfonium, tri-2-naphthylsulfonium, tris (4-hydroxyphenyl) sulfonium, 4- (phenylthio) phenyldiphenylsulfonium, 4- (p-tolylthio) phenyldi-p-tolylsulfonium, 4- (4-Methoxyphenylthio) phenylbis (4-methoxyphenyl) sulfonium, 4- (phen
- iodonium ion for example, diphenyliodonium, di-p-tolyliodonium, bis (4-dodecylphenyl) iodonium, bis (4-methoxyphenyl) iodonium, (4-octyloxyphenyl) phenyliodonium, bis (4-decyloxy)
- iodonium ions such as phenyliodonium, 4- (2-hydroxytetradecyloxy) phenylphenyliodonium, 4-isopropylphenyl (p-tolyl) iodonium and 4-isobutylphenyl (p-tolyl) iodonium.
- the salt composed of the anion represented by the formula (1) and the cation can be synthesized according to a known method described in, for example, JP-A-2013-043864.
- commercially available CPI-310FG (trade name, photo cationic polymerization initiator, manufactured by San-Apro Co., Ltd.) or the like may be obtained and used.
- the content of the cationic photopolymerization initiator (A) in the photosensitive resin composition of the present invention is preferably 0.05 to 15% by mass, more preferably 0.07 to 15% by mass with respect to the content of the epoxy compound (B). It is 10% by mass, more preferably 0.1 to 8% by mass, and most preferably 0.5 to 5% by mass.
- the compounding amount may be adjusted according to the volume and thickness of the photosensitive resin composition.
- the content of the salt composed of the anion represented by the formula (1) and the cation in the cationic photopolymerization initiator (A) is not particularly limited as long as the effect of the present invention is not impaired, but is preferably Is 80% by mass or more, more preferably 90% by mass or more, still more preferably 95% by mass or more, and most preferably 100%.
- the epoxy compound (B) contained in the photosensitive resin composition of the present invention is one or two or more epoxy compounds selected from the group consisting of the above-mentioned epoxy compounds (b-1) to (b-10). contains.
- Specific examples of the epoxy compound (b-1) include KM-N LCL (trade name, bisphenol A novolac type epoxy resin, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 195 to 210 g / eq., Softening point 78 to 86 ° C.
- JER 157 (trade name, bisphenol A novolac epoxy resin, manufactured by Mitsubishi Chemical Corporation, epoxy equivalent 200 to 220 g / eq., Softening point 70 ° C.), EPON SU-8 (trade name, bisphenol A novolac epoxy resin, hexion C., epoxy equivalent 195 to 230 g / eq., Softening point 80 to 90 ° C., and the like.
- the epoxy compound (b-2) is, for example, a bisphenol A epoxy compound, a bisphenol F epoxy compound, and an epoxy compound in which a part or all of the alcoholic hydroxyl group possessed by these epoxy compounds in its structure is epoxidized It is.
- Specific examples of the bisphenol A type epoxy compound include YD series manufactured by Nippon Steel & Sumikin Chemical Co., Ltd., jER 828 series and jER 1000 series manufactured by Mitsubishi Chemical, and EPICLON series manufactured by DIC (epoxy equivalent and softening point are average repetition numbers) There are a wide variety of differences).
- bisphenol F type epoxy compounds include YDF series manufactured by Nippon Steel & Sumikin Chemical Co., Ltd., jER 800 series and jER 4000 series manufactured by Mitsubishi Chemical Corp., and EPICLON series manufactured by DIC (epoxy equivalent and softening point are average repetition numbers There are a wide variety of differences).
- epoxy compounds in which a part or all of the alcoholic hydroxyl groups possessed by bisphenol A epoxy compounds and bisphenol F epoxy compounds in their structures are epoxidized
- NER-7604 and NER-7403 both of them Brand name, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 200 to 500 g / eq., Softening point 55 to 80 ° C.
- NER-1302 and NER-7516 all trade names, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 200 to 500 g And a softening point of 55 to 80 ° C.
- the repeating number of the structural unit in an epoxy compound points out the value calculated from the number average molecular weight calculated by polystyrene conversion based on the measurement result of GPC, and a general formula.
- the number of repetitions for the epoxy compound used in the following examples is a value calculated by this method.
- the epoxy compound (b-3) include NC-3000 series such as NC-3000H (trade name, biphenyl-phenol novolac epoxy resin, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 270 to 300 g / eq., Softening point 55 to 75 ° C.).
- Specific examples of the epoxy compound (b-4) include NC-6300H (trade name, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 226 to 238 g / eq., Softening point 67 to 74 ° C.).
- the epoxy compound (b-5) can be obtained, for example, by the method described in JP-A-2007-291263.
- epoxy compound (b-6) examples include EPPN-201 (trade name, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 180 to 200 g / eq., Softening point 65 to 78 ° C.), EOCN-1020-70, etc.
- EOCN-1020 series trade name, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 190 to 210 g / eq., Softening point 55 to 85 ° C.
- epoxy compound (b-7) examples include EPPN-501H (trade name, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 162 to 172 g / eq., Softening point 51 to 57 ° C.), EPPN-501 HY (trade name) Manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 163 to 175 g / eq., Softening point 57 to 63 ° C., EPPN-502H (trade name, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 158 to 178 g / eq., Softening point 60 to 72 ° C.).
- EPPN-501H trade name, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 162 to 172 g / eq., Softening point 51 to 57 ° C.
- EPPN-501 HY trade name
- EPPN-502H trade name, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 158
- Specific examples of the epoxy compound (b-8) include XD-1000 (trade name, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 245 to 260 g / eq., Softening point 68 to 78 ° C.).
- Specific examples of the epoxy compound (b-9) include NC-7700 (trade name, manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 210 to 250 g / eq., Softening point 86 to 91 ° C.).
- Specific examples of the epoxy compound (b-10) include EHPE 3150 (trade name, manufactured by Daicel Chemical Industries, Ltd .: epoxy equivalent 170 to 190 g / eq., Softening point 70 to 90 ° C.).
- the softening point of the epoxy compound (B) contained in the photosensitive resin composition of the present invention is also not particularly limited.
- the softening point of the epoxy compound (B) is preferably 40 ° C. or higher, more preferably 55 ° C. or higher, to prevent mask sticking. preferable.
- the epoxy equivalent in this specification is the value measured by the method based on JISK7236.
- the molecular weight in the present specification is a value of weight average molecular weight calculated in terms of polystyrene based on the measurement result of gel permeation chromatography.
- the softening point in the present specification is a value measured by a method in accordance with JIS K7234.
- epoxy compounds other than the epoxy compounds (b-1) to (b-10), solvents, adhesiveness imparting agents, polyol compounds, polyhydric phenol compounds, Components such as photosensitizers or ion catchers can optionally be used in combination.
- the optional components that can be used in combination are not particularly limited as long as they do not inhibit the function and effect of the photosensitive resin composition.
- the epoxy compounds other than the epoxy compounds (b-1) to (b-10) which can be used in combination with the photosensitive resin composition of the present invention are not particularly limited, and known glycidyl ether type epoxy compounds and alicyclic epoxy compounds may be used. It can be used.
- Diethylene glycol diglycidyl ether generally called reactive diluent, hexanediol diglycidyl ether, dimethylolpropane diglycidyl ether, polypropylene glycol diglycidyl ether (manufactured by Adeka Corp., ED 506), trimethylolpropane triglycidyl ether (manufactured by Adeka Corp., ED 505) ), Trimethylolpropane triglycidyl ether (low chlorine type, ex. 321L manufactured by Nagase ChemteX Corp.), pentaerythritol tetraglycidyl ether etc.
- the content of the epoxy compound as an optional component in the photosensitive resin composition of the present invention is not particularly limited as long as the effects of the present invention are not impaired, and preferably in the solid content of the photosensitive resin composition excluding the solvent
- the amount used is 10% by mass or less.
- the solvent that can be used in combination with the photosensitive resin composition of the present invention is not particularly limited, but preferably used is an organic solvent that is usually used for ink, paint, etc. and can dissolve each component of the photosensitive resin composition.
- organic solvents ketones such as acetone, ethyl methyl ketone, methyl isobutyl ketone, cyclohexanone and cyclopentanone, aromatic hydrocarbons such as toluene, xylene, methoxybenzene and tetramethylbenzene, diglyme, dipropylene Glycol ethers such as glycol dimethyl ether and dipropylene glycol diethyl ether, ethyl lactate, butyl lactate, propyl lactate, ethyl acetate, methyl acetoacetate, ethyl acetoacetate, methyl propionate, ethyl propionate, ethyl propionate, isopropyl prop
- the content of the solvent in the photosensitive resin composition of the present invention is not particularly limited as long as the effects of the present invention are not impaired.
- the content of the solvent in the photosensitive resin composition is usually 95% by mass or less, preferably 10 to 90%. The amount to be% is used.
- the adhesion imparting agent that can be used in combination with the photosensitive resin composition of the present invention is not particularly limited, and known silane coupling agents, titanium coupling agents and the like can be used. Preferably it is a silane coupling agent. These adhesion promoters may be used alone or in combination of two or more.
- silane coupling agent examples include 3-chloropropyltrimethoxysilane, vinyltrichlorosilane, vinyltriethoxysilane, vinyltrimethoxysilane, vinyltris (2-methoxyethoxy) silane, 3-methacryloxypropyltrimethoxysilane, 2- (3,4-Epoxycyclohexyl) ethyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 3-glycidoxy Propylmethyldiethoxysilane, 3-mercaptopropyltrimethoxysilane, 8-glycidyloctyltrimethoxysilane and the like can be mentioned.
- the content of the adhesion promoter in the photosensitive resin composition of the present invention is not particularly limited as long as the effects of the present invention are not impaired, and preferably 15% of the solid content of the photosensitive resin composition excluding the solvent. An amount of not more than 10% by mass, more preferably not more than 10% by mass is used.
- the polyol compound which can be used together with the photosensitive resin composition of this invention is not specifically limited, Typically, it is a polyester polyol type-compound containing a hydroxy group which reacts with an epoxy group under the influence of a strong acid catalyst.
- the polyol compounds listed in Patent Publication 5901070 can be used in combination. By using this, it is possible to avoid stress induction in the exposure curing, development and thermal curing steps at the time of photolithography processing, to reduce shrinkage, and to prevent cracks in a photosensitive image.
- the content of the polyol compound in the photosensitive resin composition of the present invention is not particularly limited as long as the effects of the present invention are not impaired, and is usually 1 to 30% by mass with respect to the total mass of the epoxy compound (B). Preferably, it is 2 to 25% by mass.
- the polyhydric phenol compound that can be used in combination with the photosensitive resin composition of the present invention is a compound that can cure the crosslinking density of the epoxy compound to a high level by heating.
- polyhydric phenol compounds listed in Patent Publication No. 5967824 can be used in combination. By using this, it is possible to impart the functions of low moisture permeability, high adhesion, and toughness to the cured resin.
- the content of the polyhydric phenol compound in the photosensitive resin composition of the present invention is not particularly limited as long as the effects of the present invention are not impaired, and is usually 3 to 40 mass based on the total mass of the (B) epoxy compound. %, Preferably 4 to 30% by mass, more preferably 5 to 25% by mass.
- the sensitizer that can be used in combination with the photosensitive resin composition of the present invention can be used without particular limitation as long as it plays a role of providing the absorbed light energy to the photocationic polymerization initiator.
- thioxanthones and anthracene compounds (9, 10-dialkoxyanthracene derivatives) having alkoxy groups at the 9- and 10-positions are preferable.
- alkoxy group C1-C4 alkoxy groups, such as a methoxy group, an ethoxy group, a propoxy group, butoxy group, are mentioned, for example.
- the 9,10-dialkoxyanthracene derivative may further have a substituent.
- substituents examples include halogen atoms such as fluorine atom, chlorine atom, bromine atom and iodine atom, alkyl groups having 1 to 4 carbon atoms such as methyl group, ethyl group and propyl group, sulfonic acid alkyl ester groups, carboxylic acid alkyl Ester group etc. are mentioned.
- alkyl in the sulfonic acid alkyl ester group and the carboxylic acid alkyl ester examples include alkyl having 1 to 4 carbon atoms such as methyl, ethyl and propyl.
- the substitution position of these substituents is preferably 2-position.
- thioxanthones include 2,4-dimethyl thioxanthone, 2,4-diethyl thioxanthone, 2-chlorothioxanthone, 2,4-diisopropyl thioxanthone and the like.
- 2,4-diethylthioxanthone eg, Kayacure DETX-S, manufactured by Nippon Kayaku Co., Ltd.
- 2,4-diisopropylthioxanthone eg, Kayacure DETX-S, manufactured by Nippon Kayaku Co., Ltd.
- 9,10-dialkoxyanthracene derivatives include 9,10-dimethoxyanthracene, 9,10-diethoxyanthracene, 9,10-dipropoxyanthracene, 9,10-dibutoxyanthracene, 9,10-dimethoxy-2 -Ethylanthracene, 9,10-diethoxy-2-ethylanthracene, 9,10-dipropoxy-2-ethylanthracene, 9,10-dimethoxy-2-chloroanthracene, 9,10-dimethoxyanthracene-2-sulfonic acid methyl ester And 9,10-diethoxyanthracene-2-sulfonic acid methyl ester, 9,10-dimethoxyanthracene-2-carboxylic acid methyl ester and the like.
- sensitizers may be used alone or in combination of two or more.
- the content of the sensitizer in the photosensitive resin composition of the present invention is not particularly limited as long as the effects of the present invention are not impaired, and preferably 30% by mass or less with respect to the (A) photo cationic polymerization initiator. More preferably, an amount of 20% by mass or less is used.
- the ion chucker that can be used in combination with the photosensitive resin composition of the present invention can be used without particular limitation, as long as it can reduce the adverse effect of (A) ion derived from the cationic photopolymerization initiator.
- organoaluminum compounds specifically, alkoxyaluminums such as trismethoxyaluminum, trisethoxyaluminum, trisisopropoxyaluminum, isopropoxydiethoxyaluminum and trisbutoxyaluminum, phenoxys such as trisphenoxyaluminum and trisparamethylphenoxyaluminum Aluminum, Tris-Acetoxy Aluminum, Tris-Stearate Aluminum, Tris-butylato Aluminum, Tris-Propionato Aluminum, Tris-acetyl-acetonato Aluminum, Tris-Trifluoro-acetyl-acenate Aluminum, Tris-ethyl-aceto-acetato Aluminum, Di-acetyl-
- an onium weak acid salt compound that emits a weak acid upon ultraviolet irradiation may be suitably used in combination as an ion catcher.
- alkylsulfonic acids such as methanesulfonic acid, ethanesulfonic acid, propanesulfonic acid, butanesulfonic acid, camphorsulfonic acid, trifluoromethanesulfonic acid, pentafluoroethanesulfonic acid, p
- weak acid structures such as toluenesulfonic acid, benzenesulfonic acid, cyclohexanesulfonic acid, adamantanesulfonic acid, dicyclopentadiene sulfonic acid and the like.
- the cation part of the onium salt is not particularly limited as long as it is a monovalent organic cation, but oxonium ions, ammonium ions, phosphonium ions, sulfonium ions or iodonium ions are preferable. Ammonium ion, phosphonium ion, sulfonium ion or iodonium ion is more preferable, and sulfonium ion or iodonium ion is still more preferable.
- the onium weak acid salt compound may be used in combination to such an extent that the photopolymerization is not significantly inhibited.
- the content of the ion catcher in the photosensitive resin composition of the present invention is not particularly limited as long as the effects of the present invention are not impaired.
- an amount of 10% by mass or less is preferably used in the solid content of the photosensitive resin composition excluding the solvent.
- the onium weak acid salt compound it is preferably used in an amount of 0.001 to 2% by mass based on the amount of the cationic photopolymerization initiator (A) of the present invention.
- thermoplastic resin a polyether sulfone, a polystyrene, a polycarbonate etc.
- the colorant include phthalocyanine blue, phthalocyanine green, iodine green, crystal violet, titanium oxide, carbon black, naphthalene black and the like.
- the thickener include olben, benton, montmorillonite and the like.
- antifoamer such as a silicone type, a fluorine type, and a polymeric type
- the content of these various additives in the photosensitive resin composition of the present invention is not particularly limited as long as the effects of the present invention are not impaired, and preferably 30% of the solid content of the photosensitive resin composition excluding the solvent. An amount of less than or equal to mass% is used.
- the photosensitive resin composition of the present invention if necessary, for example, barium sulfate, barium titanate, silicon oxide, amorphous silica, talc, clay, magnesium carbonate, calcium carbonate, aluminum oxide, aluminum hydroxide, mica Inorganic fillers such as powders can be used.
- the content of these inorganic fillers in the photosensitive resin composition of the present invention is not particularly limited as long as the effects of the present invention are not impaired, and preferably 60% of the solid content of the photosensitive resin composition excluding the solvent. An amount of less than or equal to mass% is used.
- photosensitive resin composition of the present invention after blending (A) photo cationic polymerization initiator and (B) epoxy compound which are essential components, optional components are added if necessary, and they are mixed and stirred in a usual manner It can be obtained by Alternatively, it may be dispersed and mixed using a disperser such as a dissolver, a homogenizer, or a three-roll mill, if necessary. In addition, after mixing, it may be further filtered using a mesh, membrane filter or the like.
- a disperser such as a dissolver, a homogenizer, or a three-roll mill
- the photosensitive resin composition of the present invention is preferably used in liquid form.
- a substrate for example, a silicon substrate, a metal film or metal oxide such as aluminum, copper, platinum, gold, titanium, chromium, tantalum, etc.
- the photosensitive resin composition layer can be formed by heat treatment at 130 ° C. for about 5 to 60 minutes to remove the solvent.
- a mask having a predetermined pattern is placed and irradiated with ultraviolet light, and heat treatment is performed at 50 to 130 ° C. for about 1 to 50 minutes, and then the unexposed area is exposed to room temperature using a developer (for example, 15 By developing for about 1 to 180 minutes at from 50 ° C. to 50 ° C. to form a pattern, and then heat treating at 130 to 200 ° C., a cured product satisfying various properties can be obtained.
- a developing solution for example, an organic solvent such as ⁇ -butyrolactone, triethylene glycol dimethyl ether, propylene glycol monomethyl ether acetate or the like, or a mixed solution of the organic solvent and water can be used.
- a developing device of a paddle type, a spray type, a shower type or the like may be used for the development, and ultrasonic irradiation may be performed as necessary.
- aluminum is mentioned as a preferable metal substrate.
- the conditions for forming a cured product using the photosensitive resin composition of the present invention are not limited to the above, and can be appropriately adjusted as necessary.
- the photosensitive resin composition of the present invention is applied to the base film using a roll coater, a die coater, a knife coater, a bar coater, a gravure coater or the like, and then the composition is applied in a drying furnace set at 45 to 100 ° C.
- a dry film resist can be obtained by drying and removing a predetermined amount of solvent and laminating a cover film or the like as needed. At this time, the thickness of the resist on the base film is adjusted to 2 to 200 ⁇ m.
- films, such as polyester, a polypropylene, polyethylene, TAC, a polyimide are used, for example.
- a film which has been subjected to release treatment with a silicone-based release treatment agent or a non-silicone-based release treatment agent may be used, as necessary.
- the cover film is peeled off and transferred to a substrate at a temperature of 40 to 100 ° C. and a pressure of 0.05 to 2 MPa by a hand roll, a laminator or the like to form the cured product.
- exposure, post-exposure baking, development, and heat treatment may be performed.
- the conditions for forming and using a dry film resist using the photosensitive resin composition of the present invention are not limited to the above, and can be appropriately adjusted as necessary.
- the photosensitive resin composition is supplied as a dry film resist, it is possible to omit the coating on the support and the drying step, and the photosensitive resin composition of the present invention can be more easily obtained.
- the pattern formation used becomes possible.
- a MEMS package and a semiconductor package When using as a MEMS package and a semiconductor package, it can be used by producing with a coating or hollow structure with the photosensitive resin composition of this invention.
- a substrate of MEMS and semiconductor package a thin film of metal such as aluminum, copper, platinum, gold, titanium, chromium, tantalum or the like is formed to a thickness of 10 to 5000 ⁇ on a silicon wafer of various shapes by sputtering, evaporation or CVD.
- a substrate or the like obtained by forming a film and finely processing the metal by an etching method or the like is used.
- silicon oxide or silicon nitride may be formed to a thickness of 10 to 10000 ⁇ as an inorganic protective film.
- the “package” is a sealing method used to block the infiltration of gas and liquid of the outside air in order to maintain the stability of the substrate, the wiring, the element and the like.
- the package described in the present invention is to prevent deterioration of a package having a drive unit such as MEMS, a hollow package for packaging a vibrator such as a SAW device, a semiconductor substrate, a printed wiring board, wiring, and the like. Indicates surface protection, resin sealing, etc.
- the photosensitive resin composition of the present invention includes MEMS (micro electronic mechanical system) parts, micro machine parts, microfluidic parts, ⁇ -TAS (micro total analysis system) parts, ink jet print head parts, micro reactor parts, capacitors, inductors, etc. Insulating layer of electronic parts, LIGA parts, molds and stamps for micro injection molding and heat embossing, screens or stencils for micro printing applications, packages such as MEMS sensors mounted on mobile terminals and IoT parts, semiconductor devices, frequency filter devices, etc. It is used for the production of parts, bio-MEMS and bio-photonic devices, printed wiring boards, etc.
- the photosensitive resin composition is useful in MEMS package parts and semiconductor package parts, microfluidic parts, and inkjet printhead parts.
- Examples 1 to 16 and Comparative Examples 1 to 12 (Preparation of Photosensitive Resin Composition Liquid) A solvent is added in an amount such that the viscosity is 1 to 10 Pa ⁇ s to the resin composition described in Tables 1 to 3 (unit is by mass, and only the mass of the solid excluding the solvent). The mixture was stirred, mixed and dissolved under the conditions of time, allowed to cool, and then filtered through a membrane filter with a pore size of 5 ⁇ m to obtain photosensitive resin composition liquids for the present invention and for comparison.
- the “film thickness” in Table 1 means the film thickness of the cured resin pattern.
- (A-1) to (SC-1) in Tables 1 to 3 respectively indicate the following.
- (A-1) trade name CPI-310FG (a salt composed of an anion represented by the formula (1) and a cation, triarylsulfonium-tetrakispentafluorophenyl gallate, manufactured by San Apro)
- (A-2) Trade name CPI-310B (Comparative photo cationic polymerization initiator, triarylsulfonium-tetrakispentafluorophenyl borate, manufactured by San Apro)
- (A-3) trade name Irgacure 290 (photo cationic polymerization initiator for comparison, tris [4- (4-acetylphenyl) sulfonylphenyl] sulfonium tetrakis (2,3,4,5,6-pentafluorophenyl) Borate, manufactured by BASF
- (A-4) Brand name TAG-382 (Comparative photo cati
- the characteristics of the composition obtained from each example enable ultraviolet photolithography with high sensitivity.
- the low-elution and low-staining cured product can be obtained because the liquid property of the PCT extract water of the cured product is on the neutral side and the conductivity is low.
- the adhesive strength to the substrate after the moist heat test is strong.
- the photosensitive resin composition of the present invention is excellent in resolution, and the cured product of the composition has extremely low wet heat elution contamination and excellent adhesion to the substrate after the wet heat test. And used in applications where high moisture and heat resistance is required during resin sealing.
- the photosensitive resin composition of the present invention is a MEMS package part and a semiconductor package part, a micromachine part, a micro fluid part, a ⁇ -TAS (micro total analysis system) part, an inkjet print head part, a microreactor part , Insulating layers of electronic parts such as capacitors and inductors, LIGA parts, molds and stamps for micro injection molding and heat embossing, screens or stencils for micro printing applications, MEMS sensors mounted on mobile terminals and IoT parts, semiconductor devices, frequency It is particularly suitably used in the fabrication of packaging parts such as filter devices, bio-MEMS and bio-photonic devices, and printed wiring boards.
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Abstract
Description
ジアゾナフトキノン-ノボラックの組合せに基づく従来のポジ型レジストは、厚膜が要求される用途には適切ではない。この厚みの制約は、レジストを露光させるのに典型的に使用される光学スペクトルの近赤外領域(350乃至450nm)における波長においてジアゾナフトキノン型光活性化合物の吸光度が比較的高いことに起因する。
一方、ポジ型レジストの課題を解決したネガ型レジストとしては、多官能エポキシ樹脂と光重合開始剤を含む厚膜パターンを形成可能な感光性エポキシ樹脂組成物が提案されている(特許文献1参照)。
[1].
(A)光カチオン重合開始剤および(B)エポキシ化合物を含む感光性樹脂組成物であって、
該(A)光カチオン重合開始剤(A)が、下記式(1)
(式(1)中、R1乃至R4はそれぞれ独立に炭素数1乃至18のアルキル基又は炭素数6乃至14のアリール基を表す。但し、R1乃至R4の少なくとも一つは炭素数6乃至14のアリール基を表す。)で表されるアニオンとカチオンからなる塩を含有し、かつ
該(B)エポキシ化合物が、
下記式(2)
(式(2)中、R5はそれぞれ独立にグリシジル基又は水素原子を示し、複数存在するR5のうちの少なくとも2つはグリシジル基である。kは平均繰り返し数であって0乃至30の範囲にある実数を表す。)で表されるエポキシ化合物(b-1)、
下記式(3)
(式(3)中、R6はそれぞれ独立に水素原子、炭素数1乃至4のアルキル基又はトリフルオロメチル基を表す。R7は水素原子又はグリシジル基を表し、R7が複数存在する場合、それぞれのR7は同一でも異なっていてもよい。mは平均繰り返し数であって0乃至30の範囲にある実数を表す。)
で表されるエポキシ化合物(b-2)、
下記式(4)
(式(4)中、R8はそれぞれ独立に水素原子又は炭素数1乃至4のアルキル基を表す。nは平均繰り返し数であって0乃至30の範囲にある実数を表す。)
で表されるエポキシ化合物(b-3)、
下記式(5)乃至(7)
(式(6)中、R9はそれぞれ独立に水素原子又はグリシジル基を表す。)
(式(7)中、R10はそれぞれ独立に水素原子又はグリシジル基を表す。)
で表されるエポキシ化合物の群より選択される一種以上のエポキシ化合物(b-4)、
下記式(8)及び/又は式(9)
で示される化合物と、
下記式(10)及び/又は式(11)
で示される化合物との共縮合物であるエポキシ化合物(b-5)、
下記式(12)
(式(12)中、R12はそれぞれ独立に水素原子又は炭素数1乃至4のアルキル基を表す。pは平均繰り返し数であって0乃至10の範囲にある実数を表す。)
で表されるエポキシ化合物(b-6)、
下記式(13)
(式(13)中、qは平均繰り返し数であって0乃至5の範囲にある実数を表す。)
で表されるエポキシ化合物(b-7)、
下記式(14)
(式(14)中、rは平均繰り返し数であって0乃至6の範囲にある実数を表す。)
で表されるエポキシ化合物(b-8)、
下記式(15)
(式(15)中、R13はそれぞれ独立に水素原子又は炭素数1乃至4のアルキル基を表す。sは平均繰り返し数であって0乃至30の範囲にある実数を表す。)
で表されるエポキシ化合物(b-9)、及び
下記式(16)
(式(16)中、t、u及びvは平均繰り返し数であって2≦t+u+v≦60の関係を満たす実数をそれぞれ表す。)
で表されるエポキシ化合物(b-10)からなる群より選択される1種類又は2種類以上のエポキシ化合物を含有する、感光性樹脂組成物。
[2].
R1乃至R4がそれぞれ独立にパーフルオロアルキル基を置換基として有するフェニル基又はフッ素原子を置換基として有するフェニル基である、上記[1]項に記載の感光性樹脂組成物。
[3].
R1乃至R4がそれぞれ独立にペンタフルオロフェニル基又はビス(トリフルオロメチル)フェニル基である、上記[2]項に記載の感光性樹脂組成物。
[4].
(A)光カチオン重合開始剤が、式(1)で表されるアニオンとヨウ素原子又は硫黄原子を有するカチオンからなる塩を含有する、上記[1]乃至[3]項のいずれか一項に記載の感光性樹脂組成物。
[5].
上記[1]乃至[4]項のいずれか一項に記載の感光性樹脂組成物を基材で挟み込んで得られるドライフィルムレジスト。
[6].
上記[1]乃至[4]項のいずれか一項に記載の感光性樹脂組成物又は上記[5]項に記載のドライフィルムレジストの硬化物。
本発明の感光性樹脂組成物に含まれる(A)光カチオン重合開始剤は、前記式(1)で表されるアニオンとカチオンからなる塩を含有する。
式(1)中、R1乃至R4は、それぞれ独立に炭素数1乃至18のアルキル基又は炭素数6乃至14のアリール基を表すが、R1乃至R4の少なくとも一つは、炭素数6乃至14のアリール基を表す。即ち、式(1)におけるR1乃至R4は以下いずれかの組合せである。
(i)R1乃至R4のうちの一つがアリール基で残りの三つがアルキル基の組合せ。
(ii)R1乃至R4のうちの二つがアリール基で残りの二つがアルキル基の組合せ。
(iii)R1乃至R4のうちの三つがアリール基で残りの一つがアルキル基の組合せ。
(iv)R1乃至R4の全てがアリール基の組合せ。
上記の組合せのうち、(iii)又は(iv)のアニオンが好ましく、(iv)のアニオンがより好ましい。
式(1)のR1乃至R4が表す炭素数1乃至18のアルキル基は、置換基を有していてもよい。ここで言う「置換基を有するアルキル基」とは、アルキル基がその構造中に有する水素原子が置換基で置換されたアルキル基を意味する。置換基の位置及び置換基の数は特に限定されない。尚、置換基が炭素原子を有する場合、R1乃至R4が表すアルキル基の炭素数には置換基が有する炭素原子の数は含まれない。具体的には、例えばフェニル基を置換基として有するエチル基の場合、炭素数2のアルキル基とみなす。
式(1)のR1乃至R4が表す炭素数1乃至18のアルキル基が置換基として有していてもよいアルコキシ基とは、酸素原子とアルキル基が結合した置換基である。アルコキシ基が有するアルキル基としては、例えば式(1)のR1乃至R4が表す炭素数1乃至18のアルキル基の項に記載したアルキル基と同じものが挙げられる。
式(1)のR1乃至R4が表す炭素数1乃至18のアルキル基が置換基として有していてもよい芳香族基とは、芳香族化合物の芳香環から水素原子を一つ除いた残基であれば特に限定されない。例えばフェニル基、ビフェニル基、ターフェニル基、クオーターフェニル基、トリル基、インデニル基、ナフチル基、アントリル基、フルオレニル基、ピレニル基、フェナンスニル基及びメスチル基等が挙げられる。
式(1)のR1乃至R4が表す炭素数1乃至18のアルキル基が置換基として有していてもよいアルキル置換アミノ基は、モノアルキル置換アミノ基及びジアルキル置換アミノ基の何れにも制限されない、これらアルキル置換アミノ基におけるアルキル基としては、例えば式(1)のR1乃至R4が表す炭素数1乃至18のアルキル基の項に記載したアルキル基と同じものが挙げられる。
式(1)のR1乃至R4が表す炭素数1乃至18のアルキル基が置換基として有していてもよいアリール置換アミノ基は、モノアリール置換アミノ基及びジアリール置換アミノ基の何れにも制限されない。これらアリール置換アミノ基におけるアリール基としては、式(1)のR1乃至R4が表す炭素数1乃至18のアルキル基が置換基として有していてもよい芳香族基と同じものが挙げられる。
式(1)のR1乃至R4が表す炭素数6乃至14のアリール基は置換基を有していてもよい。ここで言う「置換基を有するアリール基」とは、アリール基がその構造中に有する水素原子が置換基で置換されたアリール基を意味する。置換基の位置及び置換基の数は特に限定されない。尚、置換基が炭素原子を有する場合、R1乃至R4が表すアリール基の炭素数には置換基が有する炭素原子の数は含まれない。具体的には、例えばエチル基を置換基として有するフェニル基の場合、炭素数6のアリール基とみなす。
式(1)のR1乃至R4が表す炭素数6乃至14のアリール基が置換基として有していてもよいアルキル基としては、例えば式(1)のR1乃至R4が表す炭素数1乃至18のアルキル基の項に記載したアルキル基と同じものが挙げられる。
式(1)のR1乃至R4が表す炭素数6乃至14のアリール基が置換基として有していてもよいアルコキシ基、芳香族基、複素環基、ハロゲン原子、アルキル置換アミノ基及びアリール置換アミノ基の具体例としては、式(1)のR1乃至R4が表す炭素数1乃至18のアルキル基が置換基として有していてもよいアルコキシ基、芳香族基、複素環基、ハロゲン原子、アルキル置換アミノ基及びアリール置換アミノ基と同じものが挙げられる。
また、(A)光カチオン重合開始剤中の式(1)で表されるアニオンとカチオンからなる塩の含有量は、本発明の効果が損なわれない限り特に限定されるものではないが、好ましくは80質量%以上、より好ましくは90質量%以上、更に好ましくは95質量%以上、最も好ましくは100%である。
前記エポキ化合物(b-1)の具体例としては、KM-N LCL(商品名、ビスフェノールAノボラック型エポキシ樹脂、日本化薬社製、エポキシ当量195乃至210g/eq.、軟化点78乃至86℃)、jER157(商品名、ビスフェノールAノボラック型エポキシ樹脂、三菱ケミカル社製、エポキシ当量200乃至220g/eq.、軟化点70℃)、EPON SU-8(商品名、ビスフェノールAノボラック型エポキシ樹脂、ヘキシオン社製、エポキシ当量195乃至230g/eq.、軟化点80乃至90℃)等が挙げられる。
なお、本明細書において、エポキシ化合物中の構造単位の繰り返し数は、GPCの測定結果に基づいてポリスチレン換算で算出した数平均分子量と一般式から算出される値を指す。後述の実施例で用いたエポキシ化合物についての繰り返し数はこの手法により算出された値である。
前記エポキシ化合物(b-4)の具体例としては、NC-6300H(商品名、日本化薬社製、エポキシ当量226乃至238g/eq.、軟化点67乃至74℃)が挙げられる。
前記エポキシ化合物(b-5)は、例えば、特開2007-291263号公報に記載の方法により得ることができる。
前記エポキシ化合物(b-6)の具体例としては、EPPN-201(商品名、日本化薬社製、エポキシ当量180乃至200g/eq.、軟化点65乃至78℃)、EOCN-1020-70等のEOCN-1020シリーズ(商品名、日本化薬社製、エポキシ当量190乃至210g/eq.、軟化点55乃至85℃)等が挙げられる。
前記エポキシ化合物(b-8)の具体例としては、XD-1000(商品名、日本化薬株式会社製、エポキシ当量245乃至260g/eq.、軟化点68乃至78℃)が挙げられる。
前記エポキシ化合物(b-9)の具体例としては、NC-7700(商品名、日本化薬社製、エポキシ当量210乃至250g/eq.、軟化点86乃至91℃)が挙げられる。
前記エポキシ化合物(b-10)の具体例としては、EHPE3150(商品名、ダイセル化学社製:エポキシ当量170乃至190g/eq.、軟化点70乃至90℃)が挙げられる。
尚、本明細書におけるエポキシ当量とは、JIS K7236に準拠した方法で測定した値である。本明細書における分子量とは、ゲルパーミエーションクロマトグラフィーの測定結果に基づいてポリスチレン換算で算出した重量平均分子量の値である。本明細書における軟化点とは、JIS K7234に準拠した方法で測定した値である。
本発明の感光性樹脂組成物における任意成分としてのエポキシ化合物の含有量は、本発明の効果を損なわない範囲であれば特に限定されず、溶剤を除く感光性樹脂組成物の固形分中に好ましくは10質量%以下となる量が用いられる。
本発明の感光性樹脂組成物における溶剤の含有量は、本発明の効果を損なわない範囲であれば特に限定されず、感光性樹脂組成物中に通常95質量%以下、好ましくは10乃至90質量%となる量が用いられる。
シランカップリング剤の具体例としては、3-クロロプロピルトリメトキシシラン、ビニルトリクロロシラン、ビニルトリエトキシシラン、ビニルトリメトキシシラン、ビニルトリス(2-メトキシエトキシ)シラン、3-メタクリロキシプロピルトリメトキシシラン、2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン、3-グリシドキシプロピルトリメトキシシラン、3-グリシドキシプロピルトリエトキシシラン、3-グリシドキシプロピルメチルジメトキシシラン、3-グリシドキシプロピルメチルジエトキシシラン、3-メルカプトプロピルトリメトキシシラン、8-グリシジルオクチルトリメトキシシラン等が挙げられる。これらのカップリング剤は単独で用いても複数種を混合して用いてもよい。
本発明の感光性樹脂組成物における接着性付与剤の含有量は、本発明の効果を損なわない範囲であれば特に限定されず、溶剤を除く感光性樹脂組成物の固形分中に好ましくは15質量%以下、より好ましくは10質量%以下となる量が用いられる。
9,10-ジアルコキシアントラセン誘導体としては、例えば9,10-ジメトキシアントラセン、9,10-ジエトキシアントラセン、9,10-ジプロポキシアントラセン、9,10-ジブトキシアントラセン、9,10-ジメトキシ-2-エチルアントラセン、9,10-ジエトキシ-2-エチルアントラセン、9,10-ジプロポキシ-2-エチルアントラセン、9,10-ジメトキシ-2-クロロアントラセン、9,10-ジメトキシアントラセン-2-スルホン酸メチルエステル、9,10-ジエトキシアントラセン-2-スルホン酸メチルエステル、9,10-ジメトキシアントラセン-2-カルボン酸メチルエステル等が挙げられる。これらの増感剤は単独で用いても複数種を混合して用いてもよい。
本発明の感光性樹脂組成物における増感剤の含有量は、本発明の効果を損なわない範囲であれば特に限定されず、(A)光カチオン重合開始剤に対して好ましくは30質量%以下、より好ましくは20質量%以下となる量が用いられる。
本発明の感光性樹脂組成物におけるイオンキャッチャーの含有量は、本発明の効果を損なわない範囲であれば特に限定されない。有機アルミニウム化合物類の場合は、溶剤を除く感光性樹脂組成物の固形分中に好ましくは10質量%以下となる量が用いられる。
オニウム弱酸塩化合物の場合は、本発明の(A)光カチオン重合開始剤の配合量に対し好ましくは0.001乃至2質量%となる量が用いられる。
本発明の感光性樹脂組成物におけるこれら各種添加剤の含有量は、本発明の効果を損なわない範囲であれば特に限定されず、溶剤を除く感光性樹脂組成物の固形分中に好ましくは30質量%以下となる量が用いられる。
本発明の感光性樹脂組成物におけるこれら無機充填材の含有量は、本発明の効果を損なわない範囲であれば特に限定されず、溶剤を除く感光性樹脂組成物の固形分中に好ましくは60質量%以下となる量が用いられる。
基板上に硬化物を形成するために本発明の感光性樹脂組成物を使用するには、例えば、シリコン基板、アルミニウム、銅、白金、金、チタン、クロム、タンタル等の金属膜または金属酸化物膜付き基板、リチウムタンタレート、ガラス、シリコンオキサイド、シリコンナイトライド等のセラミック基板、ポリイミド、ポリエチレンテレフタラート等の基板上に0.1乃至1000μmの厚みでスピンコーター等を用いて塗布し、60乃至130℃で5乃至60分間程度、熱処理し溶剤を除去し感光性樹脂組成物層を形成することができる。次いで、所定のパターンを有するマスクを載置して紫外線を照射し、50乃至130℃で1乃至50分間程度、加熱処理を行った後、未露光部分を、現像液を用いて室温(例えば15℃以上)乃至50℃で1乃至180分間程度現像してパターンを形成し、次いで130乃至200℃で加熱処理をすることにより、諸特性を満足する硬化物を得ることができる。
現像液としては、例えばγ-ブチロラクトン、トリエチレングリコールジメチルエーテル、プロピレングリコールモノメチルエーテルアセテート等の有機溶剤、あるいは、前記有機溶剤と水の混合液等を用いることができる。現像にはパドル型、スプレー型、シャワー型等の現像装置を用いてもよく、必要に応じて超音波照射を行ってもよい。尚、本発明の感光性樹脂組成物を使用するにあたり好ましい金属基板としては、アルミニウムが挙げられる。
本発明の感光性樹脂組成物を用いて硬化物を形成するための諸条件は、上記に限定されるわけではなく、必要に応じて適宜調整可能である。
本発明の感光性樹脂組成物を用いてドライフィルムレジストを形成・使用するための諸条件は、上記に限定されるわけではなく、必要に応じて適宜調整可能である。
(感光性樹脂組成物液の調製)
表1~3に記載の樹脂組成(単位は質量部、溶媒を除く固形分の質量のみ記載した)に粘度が1乃至10Pa・sとなる量の溶剤を加え、攪拌機付きフラスコで80℃、3時間の条件で攪拌混合して溶解し、放冷後、孔径5μmのメンブレンフィルターによって濾過を施し、本発明及び比較用の感光性樹脂組成物液を得た。
実施例1乃至16及び比較例1乃至12で得られた各感光性樹脂組成物液を、シリコンウエハ上にスピンコーターで塗工後、95℃のホットプレートにより15分間のプレベークを行い、平滑に形成された感光性樹脂組成物層を得た。その後、エッジビードを除去乾燥後、i線露光装置(マスクアライナー:ウシオ電機社製)を用いて解像性評価用グレースケール付きフォトマスクを介して、紫外線を照射した。続いて、95℃のホットプレートにより5分間の露光後ベークを行った。次にSU-8Developer(商品名、マイクロケム社製、プロピレングリコールモノメチルエーテルアセテート主成分)によって23℃で3分間浸漬現像し、2-プロパノールでリンス洗浄、乾燥を経て、シリコンウエハ上に硬化した樹脂パターンを得た。マスク転写精度が最良となる露光量を最適露光量として感度及び解像度の評価を行った。結果を下記表1に示した。尚、表1中の「膜厚」は、硬化した樹脂パターンの膜厚を意味する。
実施例1乃至16及び比較例1乃至12で得られた本発明及び比較用の感光性樹脂組成物液を用いてフィルム状硬化物を以下の工程で作製した。
1)ベーカー式アプリケータによってPETフィルム上に感光性樹脂組成物液を塗工する。
2)50℃3分間、次いで95℃30分間の条件で、ホットプレート上で乾燥させ、膜厚約100μmの塗膜とする。
3)i線露光装置(マスクアライナー:ウシオ電機社製)で、表1乃至3記載の露光量を紫外線照射する。
4)95℃10分間の条件で、ホットプレート上で重合促進加熱を行う。
5)PETフィルムから樹脂組成物膜を剥がし、200℃のオーブンで60分間、焼成ベークを行う。
上記のようにして得られたフィルム状硬化物を切り出して約3グラム精秤した後、テフロン(登録商標)製のPCT容器に入れ、精秤したイオン交換蒸留水50gをPCT容器に加えた。SUS製の圧力容器にPCT容器を密閉し、121℃、2気圧の条件下に24時間放置した後、室温まで放冷してから抽出水を取り出して導電率と水素イオン指数を測定し、以下の基準で評価した。結果を表1乃至3に示した。
・抽出水の導電率の評価基準
120μS/cm未満;「○」
120μS/cm以上1200μS/cm未満;「×」
1200μS/cm以上;「××」
・水素イオン指数比
純水ブランク試験水に対する水素イオン指数比が0.7以上;「○」、0.7未満;「×」
(A-1):商品名 CPI-310FG(式(1)で表されるアニオンとカチオンからなる塩、トリアリールスルホニウム-テトラキスペンタフルオロフェニルガレイト、サンアプロ社製)
(A-2):商品名 CPI-310B(比較用の光カチオン重合開始剤、トリアリールスルホニウム-テトラキスペンタフルオロフェニルボレイト、サンアプロ社製)
(A-3):商品名 Irgacure 290(比較用の光カチオン重合開始剤、トリス[4-(4-アセチルフェニル)スルホニルフェニル]スルホニウムテトラキス(2,3,4,5,6-ペンタフルオロフェニル)ボレイト、BASF社製)
(A-4):商品名 TAG-382(比較用の光カチオン重合開始剤、アリールスルホニウム-テトラキスペンタフルオロボレイト、東洋インキ社製)
(A-5):商品名 GSID-26-1(比較用の光カチオン重合開始剤、トリス[4-(4-アセチルフェニル)スルホニルフェニル]スルホニウムトリス[(トリフルオロメチル)スルホニウム]メタン、BASF社製)
(A-6):商品名 CPI-210S(比較用の光カチオン重合開始剤、4-(フェニルチオ)フェニルジフェニルスルホニウムトリス(ペンタフルオロエチル)トリフルオロホスフェート、サンアプロ社製)
(A-7):商品名 CPI-101A(比較用の光カチオン重合開始剤、ジフェニル[p-(フェニルチオ)フェニル]スルホニウムヘキサフルオロアンチモネート、サンアプロ社製)
(A-8):商品名 SP-172(比較用の光カチオン重合開始剤、アリールスルホニウム-ヘキサフルオロアンチモネート、ADEKA社製)
(A-9):商品名 CPI-310CS(比較用の光カチオン重合開始剤、アリールスルホニウム-カンファースルホネート、サンアプロ社製)
(B-1):商品名 KM-N LCL(式(2)で表されるエポキシ化合物(b-1)、平均繰り返し数k=4、R5はグリシジル、エポキシ当量210g/eq.、日本化薬社製)
(B-2):商品名 NER-7604(式(3)で表されるエポキシ化合物(b-2)、平均繰り返し数m=4、R6は水素、R7はグリシジル、エポキシ当量347g/eq.、日本化薬社製)
(B-3):商品名 NC-3000H(式(4)で表されるエポキシ化合物(b-3)、平均繰り返し数n=2、R8は水素、エポキシ当量285g/eq.、日本化薬社製)
(B-4):商品名 NC-6300H(式(5)乃至(7)で表される化合物の混合物であるエポキシ化合物(b-4)、R9およびR10は水素またはグリシジル、エポキシ当量225g/eq.、日本化薬社製)
(B-5):商品名 KHE-2033(式(8)で表される化合物と式(10)及び(11)で表される化合物の混合物との共縮合反応の生成物であるエポキシ化合物(b-5)、エポキシ当量495g/eq.、日本化薬社製)
(B-6):商品名 EOCN-1020-70(式(12)で表されるエポキシ化合物(b-6)、エポキシ当量200g/eq.、日本化薬社製)
(B-7):商品名 EPPN-201(式(12)で表されるエポキシ化合物(b-6)、pは4、R12はメチル、エポキシ当量190g/eq.、日本化薬社製)
(B-8):商品名 EPPN-502H(式(13)で表されるエポキシ化合物(b-7)、qは1、エポキシ当量170g/eq.、日本化薬社製)
(B-9):商品名 XD-1000(式(14)で表されるエポキシ化合物(b-8)、rは1、エポキシ当量253g/eq.、日本化薬社製)
(B-10):商品名 NC-7700(式(15)で表されるエポキシ化合物(b-9)、sは1、R13は水素、エポキシ当量230g/eq.、日本化薬社製)
(B-11):商品名 jER-1007(式(3)で表されるエポキシ化合物(b-2)、平均繰り返し数m=13、R6はメチル、R7は水素、エポキシ当量2,000g/eq.、三菱ケミカル社製)
(B-12):商品名 EHPE-3150(式(16)で表されるエポキシ化合物(b-10)、平均繰り返し数t+u+v=36、エポキシ当量180g/eq.、ダイセル社製)
(B-13):商品名 YD-8125(式(3)で表されるエポキシ化合物(b-2)、平均繰り返し数m=1、R6はメチル、R7は水素、エポキシ当量172g/eq.、新日鉄住金化学社製)
(B-14):商品名 ED-505(エポキシ化合物、トリメチロールプロパントリグリシジルエーテル、エポキシ当量130g/eq.、ADEKA社製)
(B-15):商品名 ED-506(エポキシ化合物、ポリプロピレングリコールポリグリシジルエーテル、エポキシ当量310g/eq.、ADEKA社製)
(B-16):商品名 セロキサイド2021P(エポキシ化合物、3’,4’-エポキシシクロヘキシルメチル3,4-エポキシシクロヘキサンカルボキシレート、エポキシ当量126g/eq.、ダイセル社製)
(PF-1):商品名 PN-80(フェノールノボラック樹脂、明和化成社製、水酸基当量104g/eq.)
(PF-2):商品名 PN-152(フェノールノボラック樹脂、明和化成社製、水酸基当量105g/eq.)
(PO-1):プラクセル308(商品名、ダイセル社製、三官能ポリオール樹脂、分子量850、OH当量195mgKOH/g)
(SC-1):3-グリシドキシプロピルトリメトキシシラン
感光性樹脂組成物を用い、膜厚38±5μm、一辺が100μmの正方形である直方体型硬化物パターンをシリコンウエハ上にフォトグラフィによって作製した。80℃に加熱した湿熱試験用の純水に24時間浸漬後の直方体型硬化物パターンの接着強度を測定し、結果を表4に記載した。測定機器としてRHESCA製「PTR-1000」を用い、一辺が100μmの正方形である直方体型硬化物パターンのシェア強度を測定し、これを接着強度とした。
また、表4の結果のとおり、湿熱試験後の基板への接着強度が強力であることも明確である。
Claims (6)
- (A)光カチオン重合開始剤および(B)エポキシ化合物を含む感光性樹脂組成物であって、
該(A)光カチオン重合開始剤(A)が、下記式(1)
(式(1)中、R1乃至R4はそれぞれ独立に炭素数1乃至18のアルキル基又は炭素数6乃至14のアリール基を表す。但し、R1乃至R4の少なくとも一つは炭素数6乃至14のアリール基を表す。)で表されるアニオンとカチオンからなる塩を含有し、かつ
該(B)エポキシ化合物が、
下記式(2)
(式(2)中、R5はそれぞれ独立にグリシジル基又は水素原子を示し、複数存在するR5のうちの少なくとも2つはグリシジル基である。kは平均繰り返し数であって0乃至30の範囲にある実数を表す。)で表されるエポキシ化合物(b-1)、
下記式(3)
(式(3)中、R6はそれぞれ独立に水素原子、炭素数1乃至4のアルキル基又はトリフルオロメチル基を表す。R7は水素原子又はグリシジル基を表し、R7が複数存在する場合、それぞれのR7は同一でも異なっていてもよい。mは平均繰り返し数であって0乃至30の範囲にある実数を表す。)
で表されるエポキシ化合物(b-2)、
下記式(4)
(式(4)中、R8はそれぞれ独立に水素原子又は炭素数1乃至4のアルキル基を表す。nは平均繰り返し数であって0乃至30の範囲にある実数を表す。)
で表されるエポキシ化合物(b-3)、
下記式(5)乃至(7)
(式(6)中、R9はそれぞれ独立に水素原子又はグリシジル基を表す。)
(式(7)中、R10はそれぞれ独立に水素原子又はグリシジル基を表す。)
で表されるエポキシ化合物の群より選択される一種以上のエポキシ化合物(b-4)、
下記式(8)及び/又は式(9)
で示される化合物と、
下記式(10)及び/又は式(11)
で示される化合物との共縮合物であるエポキシ化合物(b-5)、
下記式(12)
(式(12)中、R12はそれぞれ独立に水素原子又は炭素数1乃至4のアルキル基を表す。pは平均繰り返し数であって0乃至10の範囲にある実数を表す。)
で表されるエポキシ化合物(b-6)、
下記式(13)
(式(13)中、qは平均繰り返し数であって0乃至5の範囲にある実数を表す。)
で表されるエポキシ化合物(b-7)、
下記式(14)
(式(14)中、rは平均繰り返し数であって0乃至6の範囲にある実数を表す。)
で表されるエポキシ化合物(b-8)、
下記式(15)
(式(15)中、R13はそれぞれ独立に水素原子又は炭素数1乃至4のアルキル基を表す。sは平均繰り返し数であって0乃至30の範囲にある実数を表す。)
で表されるエポキシ化合物(b-9)、及び
下記式(16)
(式(16)中、t、u及びvは平均繰り返し数であって2≦t+u+v≦60の関係を満たす実数をそれぞれ表す。)
で表されるエポキシ化合物(b-10)からなる群より選択される1種類又は2種類以上のエポキシ化合物を含有する、感光性樹脂組成物。 - R1乃至R4がそれぞれ独立にパーフルオロアルキル基を置換基として有するフェニル基又はフッ素原子を置換基として有するフェニル基である、請求項1に記載の感光性樹脂組成物。
- R1乃至R4がそれぞれ独立にペンタフルオロフェニル基又はビス(トリフルオロメチル)フェニル基である、請求項2に記載の感光性樹脂組成物。
- (A)光カチオン重合開始剤が、式(1)で表されるアニオンとヨウ素原子又は硫黄原子を有するカチオンからなる塩を含有する、請求項1乃至3のいずれか一項に記載の感光性樹脂組成物。
- 請求項1乃至4のいずれか一項に記載の感光性樹脂組成物を基材で挟み込んで得られるドライフィルムレジスト。
- 請求項1乃至4のいずれか一項に記載の感光性樹脂組成物又は請求項5に記載のドライフィルムレジストの硬化物。
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020076895A (ja) * | 2018-11-08 | 2020-05-21 | 住友ベークライト株式会社 | 感光性樹脂組成物 |
| JP2021067815A (ja) * | 2019-10-23 | 2021-04-30 | 住友ベークライト株式会社 | バンプ保護膜用感光性樹脂組成物、半導体装置、半導体装置の製造方法および電子機器 |
| JP2021113915A (ja) * | 2020-01-20 | 2021-08-05 | 信越化学工業株式会社 | 感光性樹脂組成物、感光性ドライフィルム及びパターン形成方法 |
| WO2021251063A1 (ja) * | 2020-06-10 | 2021-12-16 | 信越化学工業株式会社 | ネガ型レジストフィルム積層体及びパターン形成方法 |
| JP2022038418A (ja) * | 2020-08-26 | 2022-03-10 | 東京応化工業株式会社 | ネガ型感光性組成物、積層フィルム及びパターン形成方法 |
| WO2022085599A1 (ja) * | 2020-10-20 | 2022-04-28 | デンカ株式会社 | 封止剤、硬化体、有機エレクトロルミネッセンス表示装置、及び、有機エレクトロルミネッセンス表示装置の製造方法 |
| JP2023052059A (ja) * | 2018-09-13 | 2023-04-11 | 株式会社レゾナック | 感光性樹脂組成物、感光性フィルム、デバイス及びレジストパターンの形成方法 |
| US20230236505A1 (en) * | 2020-07-08 | 2023-07-27 | San-Apro Ltd. | Negative photosensitive resin composition, pattern formation method, and laminated film |
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| JP2023063118A (ja) * | 2021-10-22 | 2023-05-09 | 株式会社Moresco | 封止材組成物および封止材 |
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| JP2023052059A (ja) * | 2018-09-13 | 2023-04-11 | 株式会社レゾナック | 感光性樹脂組成物、感光性フィルム、デバイス及びレジストパターンの形成方法 |
| JP7590807B2 (ja) | 2018-11-08 | 2024-11-27 | 住友ベークライト株式会社 | 感光性樹脂組成物 |
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| JP2021067815A (ja) * | 2019-10-23 | 2021-04-30 | 住友ベークライト株式会社 | バンプ保護膜用感光性樹脂組成物、半導体装置、半導体装置の製造方法および電子機器 |
| JP2021113915A (ja) * | 2020-01-20 | 2021-08-05 | 信越化学工業株式会社 | 感光性樹脂組成物、感光性ドライフィルム及びパターン形成方法 |
| JP7318542B2 (ja) | 2020-01-20 | 2023-08-01 | 信越化学工業株式会社 | 感光性樹脂組成物、感光性ドライフィルム及びパターン形成方法 |
| JPWO2021251063A1 (ja) * | 2020-06-10 | 2021-12-16 | ||
| JP7459941B2 (ja) | 2020-06-10 | 2024-04-02 | 信越化学工業株式会社 | ネガ型レジストフィルム積層体及びパターン形成方法 |
| EP4167028A4 (en) * | 2020-06-10 | 2024-07-17 | Shin-Etsu Chemical Co., Ltd. | Negative resist film laminate and pattern formation method |
| WO2021251063A1 (ja) * | 2020-06-10 | 2021-12-16 | 信越化学工業株式会社 | ネガ型レジストフィルム積層体及びパターン形成方法 |
| KR102889947B1 (ko) | 2020-06-10 | 2025-11-24 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 네거티브형 레지스트 필름 적층체 및 패턴 형성 방법 |
| US20230236505A1 (en) * | 2020-07-08 | 2023-07-27 | San-Apro Ltd. | Negative photosensitive resin composition, pattern formation method, and laminated film |
| US12422747B2 (en) * | 2020-07-08 | 2025-09-23 | San-Apro Ltd. | Negative photosensitive resin composition, pattern formation method, and laminated film |
| JP2022038418A (ja) * | 2020-08-26 | 2022-03-10 | 東京応化工業株式会社 | ネガ型感光性組成物、積層フィルム及びパターン形成方法 |
| JP7507635B2 (ja) | 2020-08-26 | 2024-06-28 | 東京応化工業株式会社 | ネガ型感光性組成物、積層フィルム及びパターン形成方法 |
| JPWO2022085599A1 (ja) * | 2020-10-20 | 2022-04-28 | ||
| WO2022085599A1 (ja) * | 2020-10-20 | 2022-04-28 | デンカ株式会社 | 封止剤、硬化体、有機エレクトロルミネッセンス表示装置、及び、有機エレクトロルミネッセンス表示装置の製造方法 |
| CN116194508A (zh) * | 2020-10-20 | 2023-05-30 | 电化株式会社 | 密封剂、固化体、有机电致发光显示装置及有机电致发光显示装置的制造方法 |
| JP7523568B2 (ja) | 2020-10-20 | 2024-07-26 | デンカ株式会社 | 封止剤、硬化体、有機エレクトロルミネッセンス表示装置、及び、有機エレクトロルミネッセンス表示装置の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2023030025A (ja) | 2023-03-07 |
| US20200292938A1 (en) | 2020-09-17 |
| TW201928520A (zh) | 2019-07-16 |
| CN111406233A (zh) | 2020-07-10 |
| KR102660240B1 (ko) | 2024-04-23 |
| TWI848923B (zh) | 2024-07-21 |
| CN111406233B (zh) | 2023-12-26 |
| JP2024099518A (ja) | 2024-07-25 |
| SG11202005313QA (en) | 2020-07-29 |
| JPWO2019111796A1 (ja) | 2020-12-10 |
| JP7462724B2 (ja) | 2024-04-05 |
| JP7241695B2 (ja) | 2023-03-17 |
| KR20200085805A (ko) | 2020-07-15 |
| US11809078B2 (en) | 2023-11-07 |
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