WO2021166339A1 - 感光性樹脂組成物、感光性エレメント、配線基板の製造方法、及び、感光性エレメントロール - Google Patents
感光性樹脂組成物、感光性エレメント、配線基板の製造方法、及び、感光性エレメントロール Download PDFInfo
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- WO2021166339A1 WO2021166339A1 PCT/JP2020/042340 JP2020042340W WO2021166339A1 WO 2021166339 A1 WO2021166339 A1 WO 2021166339A1 JP 2020042340 W JP2020042340 W JP 2020042340W WO 2021166339 A1 WO2021166339 A1 WO 2021166339A1
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
- C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/32—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
- C08F257/02—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00 on to polymers of styrene or alkyl-substituted styrenes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
- C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
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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
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
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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
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
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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
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
- G03F7/031—Organic compounds not covered by group G03F7/029
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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
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
- G03F7/033—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
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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
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/105—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having substances, e.g. indicators, for forming visible images
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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
- G03F7/20—Exposure; Apparatus therefor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/108—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by semi-additive methods; masks therefor
Definitions
- the present disclosure relates to a photosensitive resin composition, a photosensitive element, a method for manufacturing a wiring board, and a photosensitive element roll.
- a resist pattern is formed to obtain the desired wiring.
- a photosensitive resin composition is widely used for forming a resist pattern.
- MSAP Modified Semi Additive Process
- MSAP has been attracting attention as a method capable of forming fine wiring. In this method, in order to form fine wiring, it is necessary to form a resist pattern with higher accuracy than before.
- a photosensitizer is added to the photosensitive resin composition in order to form a resist pattern with high accuracy.
- an anthracene derivatives such as 9,10-dibutoxyanthracene (DBA) are known (see, for example, Patent Document 1).
- the photosensitive resin composition containing DBA is usually used in the form of a photosensitive element sandwiched between polymer films such as polyethylene, but according to the studies of the present inventors, the photosensitive resin composition is available.
- DBA is contained, there may be a problem that the DBA permeates the polymer film and the desired pattern shape cannot be formed at the time of forming the resist pattern. Such a problem occurs particularly prominently when the polymer film is a polyethylene film.
- the photosensitive resin composition containing DBA still has room for improvement in forming a resist pattern having excellent adhesion to the substrate.
- the present disclosure describes a photosensitive resin composition and a photosensitive element capable of forming a resist pattern having excellent adhesion to a substrate and having a good pattern shape, and a method for manufacturing a wiring substrate using them. And to provide a photosensitive element roll.
- the present disclosure contains a binder polymer having a structural unit based on benzyl (meth) acrylate, a photopolymerizable compound, a photopolymerization initiator, and a coumarin-based sensitizer.
- a sex resin composition is provided.
- the photosensitive resin composition by using a binder polymer having a structural unit based on benzyl (meth) acrylate in combination with a coumarin-based sensitizer, it has excellent adhesion to a substrate and has excellent adhesion to a substrate.
- a resist pattern having a good pattern shape can be formed. This is because the coumarin-based sensitizer is less likely to penetrate the polymer film than DBA, and higher sensitivity can be obtained with a small amount of addition, so that the pattern shape of the resist pattern can be improved and the pattern shape can be improved.
- the adhesion of the resist pattern to the substrate can be significantly improved by using the coumarin-based sensitizer in combination with the binder polymer having a structural unit based on benzyl (meth) acrylate. Further, since the amount of the coumarin-based sensitizer added can be reduced, the amount of the solvent for dissolving the sensitizer can also be reduced. Further, since the coumarin-based sensitizer has a lower absorbance than DBA, the exposed light easily reaches the deep part of the photosensitive resin layer at the time of forming the resist pattern, and the photocurability of the bottom of the photosensitive resin layer is enhanced. Can be done. Therefore, the adhesion, the resolution, and the pattern shape can be further improved.
- the content of the coumarin-based sensitizer may be 0.01 to 0.5 parts by mass with respect to 100 parts by mass of the total amount of the binder polymer and the photopolymerizable compound. ..
- the content of the coumarin-based sensitizer is within the above range, it is possible to achieve both excellent adhesion of the resist pattern and good pattern shape at a higher level.
- the content ratio of the structural unit based on the benzyl (meth) acrylate of the binder polymer is 10 to 60% by mass based on the total amount of the monomers constituting the binder polymer. May be good.
- the binder polymer may have a structural unit based on styrene.
- the structural unit based on styrene in the binder polymer, it is possible to achieve both excellent adhesion of the resist pattern and good pattern shape at a higher level.
- the content ratio of the structural unit based on styrene may be 10 to 50% by mass based on the total amount of the monomers constituting the binder polymer.
- the binder polymer may have a structural unit based on the (meth) acrylic acid alkyl ester.
- the content ratio of the structural unit based on the (meth) acrylic acid alkyl ester may be 5 to 40% by mass based on the total amount of the monomers constituting the binder polymer.
- the binder polymer may have a structural unit based on (meth) acrylic acid.
- the content ratio of the structural unit based on (meth) acrylic acid may be 10 to 40% by mass based on the total amount of the monomers constituting the binder polymer.
- the photosensitive resin composition may contain a polymerization inhibitor. Further, the content of the polymerization inhibitor in the photosensitive resin composition may be 0.003 parts by mass or less with respect to 100 parts by mass of the total amount of the binder polymer and the photopolymerizable compound. When the content of the polymerization inhibitor is within the above range, the pattern shape of the resist pattern can be made better.
- the content of the polymerization inhibitor in the photosensitive resin composition may be 0.001 part by mass or more with respect to 100 parts by mass of the total amount of the binder polymer and the photopolymerizable compound.
- the content of the polymerization inhibitor is within the above range, it is possible to achieve both excellent adhesion of the resist pattern and good pattern shape at a higher level, and it is possible to suppress the occurrence of line thickening of the gist pattern. can do.
- the polymerization inhibitor may contain tert-butylcatechol. Since the polymerization inhibitor contains tert-butylcatechol, it is possible to achieve both excellent adhesion of the resist pattern and good pattern shape at a higher level, and it is possible to suppress the occurrence of line thickening of the disist pattern. Can be done.
- the photosensitive resin composition may contain 2,6-di-tert-butyl-p-cresol as an antioxidant. Further, the content of the 2,6-di-tert-butyl-p-cresol in the photosensitive resin composition is 0.002% by mass with respect to 100 parts by mass of the total amount of the binder polymer and the photopolymerizable compound. It may be super-partial. When the content of 2,6-di-tert-butyl-p-cresol is within the above range, the adhesion of the resist pattern can be further improved and the occurrence of line thickening of the disist pattern is suppressed. be able to.
- the photopolymerization initiator may contain a 2,4,5-triarylimidazole dimer.
- the photopolymerizable compound may contain a bisphenol A type di (meth) acrylate compound.
- the bisphenol A type di (meth) acrylate compound is 2,2-bis (4-((meth) acryloxipentaethoxy) phenyl) propane and / or 2,2-bis (4-((meth) acrylic). It may contain loxydiethoxy) phenyl) propane.
- the photosensitive resin composition may contain leuco crystal violet.
- the present disclosure also provides a photosensitive element comprising a support and a photosensitive resin layer formed on the support using the photosensitive resin composition of the present disclosure.
- the present disclosure further describes a step of providing a photosensitive resin layer on a substrate using the above-mentioned photosensitive resin composition of the present disclosure or the above-mentioned photosensitive element of the present disclosure, and a step of photocuring a part of the above-mentioned photosensitive resin layer.
- a wiring substrate comprising a step of removing the uncured portion of the photosensitive resin layer to form a resist pattern and a step of forming a wiring layer in a portion of the substrate where the resist pattern is not formed. Provide a manufacturing method.
- the present disclosure also provides a photosensitive element roll comprising a winding core and the photosensitive element of the present disclosure wound around the winding core.
- a photosensitive resin composition and a photosensitive element capable of forming a resist pattern having excellent adhesion to a substrate and having a good pattern shape, and a method for manufacturing a wiring substrate using them. And photosensitive element rolls can be provided.
- the term "process” is included in this term not only as an independent process but also as long as the desired action of the process is achieved even if it cannot be clearly distinguished from other processes. Is done.
- the numerical range indicated by using “-” indicates a range including the numerical values before and after "-” as the minimum value and the maximum value, respectively.
- (Meta) acrylic acid means at least one of "acrylic acid” and the corresponding "methacrylic acid”. The same applies to other similar expressions such as (meth) acrylate.
- EO modification means a compound having a (poly) oxyethylene group.
- the amount of each component in the composition is the total amount of the plurality of substances present in the composition unless otherwise specified, when a plurality of substances corresponding to each component are present in the composition.
- the term "solid content” refers to a non-volatile content excluding volatile substances (water, solvent, etc.) in the photosensitive resin composition. That is, the “solid content” refers to a component other than the solvent that remains without volatilizing when the photosensitive resin composition described later is dried, and includes a liquid, starch syrup-like or wax-like component at room temperature (25 ° C.).
- the photosensitive resin composition according to the present embodiment includes (A) component: binder polymer, (B) component: photopolymerizable compound, (C) component: photopolymerization initiator, and (D) component: coumarin-based. Contains a sensitizer.
- the component (A) has a structural unit based on benzyl (meth) acrylate.
- the photosensitive resin composition according to the present embodiment may further contain the component (E): a polymerization inhibitor.
- each component will be described.
- Component (A) Binder polymer
- the photosensitive resin composition contains one or more of the components (A).
- the component (A) contains a binder polymer having a structural unit based on benzyl (meth) acrylate.
- the aromatic ring of the benzyl (meth) acrylate may have a substituent.
- the content ratio of the structural unit based on the benzyl (meth) acrylate is preferably 10 to 60% by mass based on the total amount of the monomers constituting the component (A). , 15 to 55% by mass, more preferably 15 to 35% by mass, particularly preferably 20 to 30% by mass, and extremely preferably 20 to 23% by mass.
- the content ratio of the structural unit based on the benzyl (meth) acrylate may be less than 23% by mass and 22% by mass or less based on the total amount of the monomers constituting the component (A). May be good.
- the binder polymer may have a structural unit based on styrene from the viewpoint of further improving the resolution and adhesion.
- Styrene may have a substituent such as vinyltoluene or ⁇ -methylstyrene.
- the content ratio of the structural unit based on styrene is 10% by mass or more, 20% by mass or more, or 30% by mass or more from the viewpoint of further improving the resolution based on the total amount of the monomers constituting the component (A). It may be 50% by mass or less, 45% by mass or less, or 40% by mass or less from the viewpoint of excellent peeling characteristics.
- the binder polymer may have a structural unit based on a (meth) acrylic acid alkyl ester from the viewpoint of improving alkali developability and peeling properties.
- the (meth) acrylic acid alkyl esters it may have a structural unit based on methyl (meth) acrylate.
- the content ratio of the structural unit based on the (meth) acrylic acid alkyl ester is 5% by mass or more, 10% by mass or more, or 5% by mass or more, based on the total amount of the monomers constituting the component (A) from the viewpoint of excellent peeling characteristics. It may be 14% by mass or more, and may be 40% by mass or less, 30% by mass or less, or 20% by mass or less from the viewpoint of further improving the resolution and adhesion.
- the binder polymer may have a structural unit based on (meth) acrylic acid.
- the content ratio of the structural unit based on (meth) acrylic acid may be 10 to 40% by mass, 15 to 30 parts by mass, and 20 by mass, based on the total amount of the monomers constituting the component (A). It may be up to 30 parts by mass and may be 20 to 25 parts by mass. Thereby, both the resist peeling property and the developability can be improved.
- the acid value of the component (A) may be 60 mgKOH / g or more, 65 mgKOH / g or more, 70 mgKOH / g or more, or 75 mgKOH / g or more from the viewpoint of suitable development, and the cured product of the photosensitive resin composition. From the viewpoint of improving the adhesion (developer resistance), it may be 250 mgKOH / g or less, 240 mgKOH / g or less, or 230 mgKOH / g or less.
- the acid value of the component (A) can be adjusted by the content of the structural unit constituting the component (A) (for example, the structural unit derived from (meth) acrylic acid).
- the weight average molecular weight (Mw) of the component (A) may be 10,000 or more, 20,000 or more, or 25,000 or more from the viewpoint of excellent adhesion (developer resistance) of the cured product of the photosensitive resin composition, which is preferable. It may be 80,000 or less, 50,000 or less, or 40,000 or less from the viewpoint of being able to develop.
- the dispersity (Mw / Mn) of the component (A) may be, for example, 1.5 or more or 2.0 or more, and is 3.5 or less or 3.3 or less from the viewpoint of further improving adhesion and resolution. It may be there.
- the weight average molecular weight and the degree of dispersion can be measured by, for example, gel permeation chromatography (GPC) using a standard polystyrene calibration curve. More specifically, the measurement can be performed under the conditions described in the examples.
- GPC gel permeation chromatography
- the molecular weight can be measured by another method and the average thereof can be calculated.
- the content of the component (A) may be 20% by mass or more, 30% by mass or more, or 40% by mass or more from the viewpoint of excellent film moldability, based on the total solid content of the photosensitive resin composition. From the viewpoint of further excellent sensitivity and resolution, it may be 90% by mass or less, 80% by mass or less, or 65% by mass or less.
- the content of the component (A) is 30 parts by mass or more, 35 parts by mass or more, or 40 parts by mass with respect to 100 parts by mass of the total amount of the components (A) and (B) from the viewpoint of excellent moldability of the film. It may be 70 parts by mass or less, 65 parts by mass or less, or 60 parts by mass or less from the viewpoint of further improving sensitivity and resolution.
- the photosensitive resin composition may or may not contain a binder polymer other than the component (A) (that is, a binder polymer having no structural unit based on benzyl (meth) acrylate).
- a binder polymer other than the component (A) that is, a binder polymer having no structural unit based on benzyl (meth) acrylate.
- Component (B) Photopolymerizable Compound
- the photosensitive resin composition contains one or more of the components (B).
- the component (B) may be a compound that polymerizes by light, and may be, for example, a compound having an ethylenically unsaturated bond.
- the component (B) may contain a bisphenol A type di (meth) acrylate compound from the viewpoint of further improving alkali developability, resolution, and peeling characteristics after curing.
- Bisphenol A type di (meth) acrylate compounds include 2,2-bis (4-((meth) acryloxipolyethoxy) phenyl) propane (2,2-bis (4-((meth) acryloxipentaethoxy)). Phenyl) propane, etc.), 2,2-bis (4-((meth) acryloxypolypropoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxypolybutoxy) phenyl) propane, 2, Examples thereof include 2-bis (4-((meth) acryloxipolyethoxypolypropoxy) phenyl) propane.
- the component (B) is 2,2-bis (4-((meth) acryloxipentaethoxy) phenyl) propane or 2,2-bis (4-((meth)) from the viewpoint of further improving the resolution and peeling characteristics. It may contain acryloxidiethoxy) phenyl) propane, including 2,2-bis (4-((meth) acryloxipentaethoxy) phenyl) propane and 2,2-bis (4-((meth) acryloxidi). It may be used in combination with ethoxy) phenyl) propane.
- the content of the bisphenol A type di (meth) acrylate compound may be 60% by mass or more or 70% by mass or more based on the total amount of the component (B) from the viewpoint of further improving the resolution of the resist, and is 99% by mass. % Or less, 95% by mass or less, or 90% by mass or less.
- the component (B) may contain trimethylolpropane tri (meth) acrylate or trimethylolmethane tri (meth) acrylate from the viewpoint of further improving peelability, adhesion, and flexibility.
- the trimethylolpropane tri (meth) acrylate or tetramethylolmethane tri (meth) acrylate may be EO-modified, PO-modified, or EO-PO-modified.
- the content of trimethylolpropane tri (meth) acrylate or tetramethylolmethanetri (meth) acrylate is 1 mass from the viewpoint of further improving developability, adhesion, and pattern shape based on the total amount of component (B). % Or more or 10% by mass or more, and from the viewpoint of further improving the peelability, it may be 30% by mass or less or 25% by mass or less.
- the content of the component (B) is 3% by mass or more, 10% by mass or more, or 25% by mass or more from the viewpoint of further improving the sensitivity and resolution based on the total solid content of the photosensitive resin composition. From the viewpoint of excellent moldability of the film, it may be 70% by mass or less, 60% by mass or less, or 50% by mass or less.
- Component (C) Photopolymerization Initiator
- the photosensitive resin composition contains one or more of the components (C).
- the component (C) include 2,4,5-triarylimidazole dimer, aromatic ketone compound, benzoin compound, phosphine oxide compound and the like.
- the component (C) may contain a 2,4,5-triarylimidazole dimer from the viewpoint of further suppressing the penetration of the photosensitizer into the polyethylene film.
- the hydrogen atom bonded to the phenyl group in the 2,4,5-triarylimidazole dimer may be substituted with a halogen atom (chlorine atom or the like).
- Examples of the 2,4,5-triarylimidazole dimer include 2- (o-chlorophenyl) -4,5-diphenylimidazole dimer and 2- (o-chlorophenyl) -4,5-bis- ( Examples thereof include m-methoxyphenyl) imidazole dimer and 2- (p-methoxyphenyl) -4,5-diphenylimidazole dimer.
- the 2,4,5-triarylimidazole dimer is a 2- (o-chlorophenyl) -4,5-diphenylimidazole dimer. It may be 2,2-bis (o-chlorophenyl) -4,5,4', 5'-tetraphenyl-1,2'-biimidazole.
- the content of the 2,4,5-triarylimidazole dimer is 90% by mass or more, 95, based on the total amount of the component (C), from the viewpoint of further suppressing the penetration of the photosensitizer into the polyethylene film. It may be mass% or more, or 99 mass% or more.
- the component (C) may consist only of 2,4,5-triarylimidazole dimer.
- the content of the component (C) is 1% by mass or more, 2% by mass or more, or 3% by mass or more based on the total solid content of the photosensitive resin composition from the viewpoint of further improving the sensitivity and adhesion. It may be 10% by mass or less, 8% by mass or less, or 6% by mass or less.
- Component (D) Coumarin-based sensitizer
- the photosensitive resin composition contains one or more of the components (D).
- the component (D) is used as a photosensitizer.
- Examples of the component (D) include compounds represented by the following general formula (1).
- Z 1 and Z 2 are independently halogen atoms, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, an aryl group having 6 to 14 carbon atoms, an amino group, and 1 to 1 carbon atoms, respectively.
- alkylamino groups dialkylamino groups with 2 to 20 carbon atoms, mercapto groups, alkyl mercapto groups with 1 to 10 carbon atoms, allyl groups, hydroxyalkyl groups with 1 to 20 carbon atoms, carboxyl groups, alkyl groups Is a carboxyalkyl group having 1 to 10, an acyl group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 20 carbon atoms, an alkoxycarbonyl group having 1 to 20 carbon atoms or a group containing a heterocycle, and n is 0.
- An integer of ⁇ 4 and m represent an integer of 0 to 2, respectively.
- at least two of n Z 1 and m Z 2 may form a ring.
- At least one Z 1 is preferably substituted at the 7-position, and at least one Z 2 is preferably substituted at the 4-position. Further, from the viewpoint of sensitivity, it is preferable that the 3-position is not substituted.
- Examples of the halogen atom in the general formula (1) include fluorine, chlorine, bromine, iodine and astatin, and examples of the alkyl group having 1 to 20 carbon atoms include a methyl group, an ethyl group and an n-propyl group.
- Examples of the cycloalkyl group having 3 to 10 carbon atoms include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group and the like.
- Examples of the aryl group having 6 to 14 carbon atoms include a phenyl group, a tolyl group, a xsilyl group, a biphenyl group, a naphthyl group, an anthryl group, a phenanthryl group and the like, and these include a halogen atom, an amino group, a nitro group and a cyano group.
- alkylamino group having 1 to 10 carbon atoms include a methylamino group, an ethylamino group, a propylamino group, an isopropylamino group and the like
- dialkylamino group having 2 to 20 carbon atoms include dimethylamino. Examples thereof include a group, a diethylamino group, a dipropylamino group, and a diisopropylamino group.
- Examples of the alkyl mercapto group having 1 to 10 carbon atoms include a methyl mercapto group, an ethyl mercapto group, and a propyl mercapto group.
- examples of the hydroxyalkyl group having 1 to 20 carbon atoms include a hydroxymethyl group, a hydroxyethyl group, a hydroxypropyl group, a hydroxyisopropyl group, a hydroxybutyl group and the like, and the alkyl group has 1 to 10 carbon atoms.
- Examples of the carboxyalkyl group include a carboxymethyl group, a carboxyethyl group, a carboxypropyl group, a carboxybutyl group and the like.
- Examples of the acyl group having 1 to 10 carbon atoms of the alkyl group include a formyl group, an acetyl group, a propionyl group, a butyryl group, an isobutyryl group, a valeryl group, an isovaleryl group, a pivaloyl group and the like, and have 1 carbon number.
- Examples of the alkoxy group to 20 include a methoxy group, an ethoxy group, a propoxy group, a butoxy group and the like.
- alkoxycarbonyl group having 1 to 20 carbon atoms examples include a methoxycarbonyl group, an ethoxycarbonyl group, a propoxycarbonyl group, a butoxycarbonyl group, and the like
- group containing a heterocycle examples include a frill group and a thienyl group. Examples thereof include a group, a pyrrolyl group, a thiazolyl group, an indrill group, a quinolyl group and the like.
- Z 1 and Z 2 are independently alkyl groups having 1 to 20 carbon atoms, amino groups, alkyl amino groups having 1 to 10 carbon atoms, or dialkyl amino groups having 2 to 20 carbon atoms, respectively. Is preferable. Also in this case, at least two of n Z 1 and m Z 2 may form a ring.
- the coumarin compound represented by the general formula (1) is more preferably a compound represented by the following general formula (2).
- Z 1 , Z 2 and m are synonymous with the above Z 1 , Z 2 and m, and Z 11 and Z 12 are independently hydrogen atoms or alkyl having 1 to 20 carbon atoms, respectively.
- the group and r represent integers from 0 to 3, respectively. At least two of r Z 1 , m Z 2 , Z 11 and Z 12 may form a ring.
- Z 11 and Z 12 are preferably alkyl groups having 1 to 10 carbon atoms independently, and are alkyl groups having 1 to 6 carbon atoms, respectively. Is more preferable.
- suitable Z 1 and Z 2 are the same as described above.
- a compound represented by the general formula (2) in which at least two of m Z 2 , Z 11 and Z 12 form a ring is represented by the following general formula (3).
- Examples thereof include compounds and compounds represented by the following general formula (4).
- Z 1 , Z 11 , Z 12 and r are synonymous with Z 1 , Z 11 , Z 12 and r, and Z 21 represents an atom or group similar to Z 1. Further, s indicates an integer of 0 to 8.
- the suitable Z 1 , Z 11 and Z 12 are the same as described above.
- Z 1 , Z 2 and m are synonymous with Z 1 , Z 2 and m, and Z 31 and Z 32 independently represent the same atom or group as Z 1. Further, t is an integer of 0 to 1, u is an integer of 0 to 6, and v is an integer of 0 to 6, respectively.
- the suitable Z 1 and Z 2 are the same as described above.
- Examples of the compound represented by the general formula (2) include 7-amino-4-methylcoumarin, 7-dimethylamino-4-methylcoumarin, and the like.
- 7-diethylamino-4-methylcoumarin compound represented by the following formula (5)
- 7-methylamino-4-methylcoumarin 7-ethylamino-4-methylcoumarin
- 4,6-dimethyl-7-ethyl Aminocoumarin compound represented by the following formula (6)
- a particularly preferable coumarin compound represented by the general formula (1) is a compound represented by the general formula (4).
- a compound represented by the general formula (4) as a component (D) in combination with a binder polymer having a structural unit based on benzyl (meth) acrylate as a component (A)
- sensitivity, adhesion and adhesion can be obtained.
- the resolution can be significantly improved, and such an effect can be sufficiently obtained even by adding a small amount of the component (D).
- the content of the component (D) is, for example, 0.01 part by mass or more from the viewpoint of further improving sensitivity, adhesion and resolution with respect to 100 parts by mass of the total amount of the component (A) and the component (B). It is preferably 0.02 parts by mass or more, more preferably 0.03 parts by mass or more, still more preferably 0.04 parts by mass or more, and from the viewpoint of improving the resist pattern shape, for example, 0.5 parts by mass or less. Yes, preferably 0.4 parts by mass or less, more preferably 0.3 parts by mass or less, further preferably 0.2 parts by mass or less, particularly preferably 0.15 parts by mass or less, extremely preferably 0.1 parts by mass or less. Is.
- the photosensitive resin composition may further contain a photosensitizer known as another photosensitizer in addition to the component (D).
- a photosensitizer known as another photosensitizer in addition to the component (D).
- the content of other sensitizers is, for example, 0.01 to 0.50 parts by mass or 0.05 to 0.20 parts by mass with respect to 100 parts by mass of the total amount of the components (A) and (B). It may be a department.
- the photosensitive resin composition further contains the component (E): polymerization inhibitor from the viewpoint of suppressing polymerization in the unexposed portion during resist pattern formation and further improving the resolution. May be good.
- the polymerization inhibitor may be, for example, tert-butylcatechol, 4-hydroxy-2,2,6,6-tetramethylpiperidin-N-oxyl or the like.
- polymerization inhibitor examples include catechol, resorcinol (resorcin), 1,4-hydroquinone, 2-methylcatechol, 3-methylcatechol, 4-methylcatechol, 2-ethylcatechol, 3-ethylcatechol, 4-ethylcatechol.
- 2-propyl catechol 3-propyl catechol
- 4-propyl catechol 2-n-butyl catechol, 3-n-butyl catechol
- 4-n-butyl catechol 2-tert-butyl catechol
- 2-tert-butyl catechol 2-tert-butyl catechol
- 3-tert-butyl catechol 4-tert-butylcatechol
- alkylcatechols such as 3,5-di-tert-butylcatechol, 2-methylresorcinol, 4-methylresorcinol, 5-methylresorcinol (orcin), 2-ethylresorcinol, 4-ethylresorcinol , 2-propyl resorcinol, 4-propyl resorcinol, 2-n-butyl resorcinol, 4-n-butyl resorcinol, 2-tert-butyl resorcinol, 4-tert-butyl resorcinol and other alkyl res
- the photosensitive resin composition contains the component (D), even if it does not contain a polymerization inhibitor, it has a resist pattern as compared with the case where it contains a conventional photosensitizer (for example, DBA). It is possible to suppress polymerization in the unexposed portion at the time of formation and to form a resist pattern with higher accuracy. Therefore, the content of the component (E) is 0.01 part by mass or less, 0.005 part by mass or less, 0.003 part by mass or less, based on 100 parts by mass of the total amount of the component (A) and the component (B). It may be 0.0025 parts by mass or less, or 0.002 parts by mass or less, and the photosensitive resin composition may not contain the component (E).
- a conventional photosensitizer for example, DBA
- the content of the component (E) may be 0.001 part by mass or more, or 0.0015 part by mass or more, based on 100 parts by mass of the total amount of the component (A) and the component (B). It may be 0.002 parts by mass or more.
- the photosensitive resin composition may further contain one or more of other components other than the above-mentioned components.
- Other components include hydrogen donors (bis [4- (dimethylamino) phenyl] methane, bis [4- (diethylamino) phenyl] methane, leucocrystal violet, N-phenylglycine, etc.), dyes (malachite green, etc.).
- Tribromophenyl sulfone Tribromophenyl sulfone, photocolorant, thermal color inhibitor, plasticizer (p-toluene sulfone amide, etc.), pigment, filler, defoaming agent, flame retardant, stabilizer, adhesion imparting agent, leveling agent, peeling Examples include accelerators, antioxidants, fragrances, imaging agents, thermal cross-linking agents and the like.
- the content of the other components may be 0.005 parts by mass or more, 0.01 parts by mass or more, and 20 parts by mass or less with respect to 100 parts by mass of the total amount of the components (A) and (B). You may.
- antioxidants examples include alkylated phenols such as 2,6-di-tert-butyl-4-methylphenol, alkylated bisphenols such as 2,2-methylenebis (4-methyl-6-tert-butylphenol), and the like. 1,3,5-trimethyl-2,4,6-tris- (3,5-di-tert-butyl-4-hydroxybenzyl) benzene, 2-4-hydroxy-3,5-di-tert-butylanilino- Examples thereof include 4,6-bis (n-octylthio) -1,3,5-triazine, dilaurylthiodipropionate benzotriazole, benzotriazole hydrochloride, benzotriazole organic acid salt, aminobenzothiazole and the like.
- antioxidants 4,4'-butylidene-bis (6-tert-butyl-m-cresol), 2,2'-methylene-bis (4-ethyl-6-tert-butylphenol), 4, 4'-thio-bis (6-tert-butyl-m-cresol), 2,6-di-tert-butyl-p-cresol, 2,5-di-tert-amylhydroquinone, 2,5-di-tert Phenols such as -butylhydroquinone, 2-methyl-4,6-bis [(octylthio) methyl] phenol, and 2,4-bis (dodecylthiomethyl) -6-methylphenol may be used. These can be used alone or in combination of two or more.
- the antioxidant preferably contains 2,6-di-tert-butyl-p-cresol (also known as dibutylhydroxytoluene, abbreviation: BHT).
- BHT 2,6-di-tert-butyl-p-cresol
- the adhesion and the shape of the resist pattern can be further improved, and the occurrence of line thickening of the resist pattern can be suppressed.
- the content of the antioxidant in the photosensitive resin composition is 0.001 part by mass or more, 0.002 part by mass or more, and 0.002% by mass with respect to 100 parts by mass of the total amount of the component (A) and the component (B). It may be more than parts, 0.003 parts by mass or more, or 0.005 parts by mass or more, and may be 0.5 parts by mass or less, 0.3 parts by mass or less, or 0.1 parts by mass or less.
- the content of the antioxidant is at least the above lower limit value, the adhesion and the shape of the resist pattern can be further improved, and the occurrence of line thickening of the resist pattern can be suppressed. Further, when the content of the antioxidant is not more than the above upper limit value, a significant decrease in sensitivity can be suppressed.
- the photosensitive resin composition may further contain one or more organic solvents from the viewpoint of adjusting the viscosity.
- the organic solvent include methanol, ethanol, acetone, methyl ethyl ketone, methyl cellosolve, ethyl cellosolve, toluene, N, N-dimethylformamide, propylene glycol monomethyl ether and the like.
- the content of the organic solvent may be 40% by mass or more and 70% by mass or less based on the total amount of the photosensitive resin composition.
- a mixed solvent of toluene and another solvent methanol, ethanol, methyl cellosolve, ethyl cellosolve, etc.
- the photosensitive resin composition contains a coumarin-based sensitizer, good solubility can be easily obtained even if the proportion of toluene in the mixed solvent is reduced, so that the amount of toluene used can be reduced.
- the photosensitive resin composition can be suitably used for forming a resist pattern, and can be particularly preferably used for a method for manufacturing a wiring board, which will be described later.
- FIG. 1 is a schematic cross-sectional view of the photosensitive element according to the embodiment.
- the photosensitive element 1 has a support 2, a photosensitive resin layer 3 provided on the support 2, and a protection provided on the opposite side of the photosensitive resin layer 3 from the support 2. It has a layer 4.
- the support 2 and the protective layer 4 may be polymer films having heat resistance and solvent resistance, respectively, and may be, for example, a polyester film such as a polyethylene terephthalate film, a polyethylene film, a polyolefin film such as a polypropylene film, or the like. ..
- the support 2 and the protective layer 4 may be films of hydrocarbon-based polymers other than polyolefin, respectively.
- the film of the hydrocarbon polymer containing polyolefin may have a low density, for example, a density of 1.014 g / cm or less.
- the support 2 and the protective layer 4 may be stretched films obtained by stretching the low-density hydrocarbon-based polymer film, respectively.
- the type of polymer film constituting the protective layer 4 may be the same as or different from the type of polymer film constituting the support 2.
- polyethylene terephthalate films such as PS series (for example, PS-25) manufactured by Teijin Co., Ltd., polyethylene films such as NF-15 manufactured by Tamapoli Co., Ltd., or Oji Paper Co., Ltd. ( For example, it can be purchased as a polypropylene film manufactured by Alfan MA-410, E-200C), Shinetsu Film Co., Ltd., etc.
- the thickness of the support 2 may be 1 ⁇ m or more or 5 ⁇ m or more from the viewpoint of suppressing damage to the support 2 when the support 2 is peeled from the photosensitive resin layer 3, and is exposed through the support 2. From the viewpoint of suitable exposure, it may be 100 ⁇ m or less, 50 ⁇ m or less, or 30 ⁇ m or less.
- the thickness of the protective layer 4 is 1 ⁇ m or more, 5 ⁇ m or more, or 15 ⁇ m from the viewpoint of suppressing damage to the protective layer 4 when laminating the photosensitive resin layer 3 and the support 2 on the substrate while peeling off the protective layer 4. It may be 100 ⁇ m or less, 50 ⁇ m or less, or 30 ⁇ m or less from the viewpoint of improving productivity.
- the photosensitive resin layer 3 is made of the above-mentioned photosensitive resin composition.
- the thickness of the photosensitive resin layer 3 after drying is from the viewpoint of facilitating coating and improving productivity. It may be 1 ⁇ m or more or 5 ⁇ m or more, and may be 100 ⁇ m or less, 50 ⁇ m or less, or 40 ⁇ m or less from the viewpoint of further improving adhesion and resolution.
- the photosensitive element 1 can be obtained, for example, as follows. First, the photosensitive resin layer 3 is formed on the support 2. The photosensitive resin layer 3 can be formed, for example, by applying a photosensitive resin composition containing an organic solvent to form a coating layer, and drying the coating layer. Next, the protective layer 4 is formed on the surface of the photosensitive resin layer 3 opposite to the support 2.
- the coating layer is formed by a known method such as roll coating, comma coating, gravure coating, air knife coating, die coating, bar coating and the like.
- the coating layer is dried so that the amount of the organic solvent remaining in the photosensitive resin layer 3 is, for example, 2% by mass or less. Specifically, for example, at 70 to 150 ° C. for 5 to 30 minutes. Degree is done.
- the photosensitive element may not be provided with a protective layer, and may be further provided with other layers such as a cushion layer, an adhesive layer, a light absorption layer, and a gas barrier layer.
- the photosensitive element 1 may be, for example, in the form of a sheet, or may be in the form of a photosensitive element roll wound around a winding core in a roll shape. In the photosensitive element roll, the photosensitive element 1 is preferably wound so that the support 2 is on the outside.
- the winding core is made of, for example, polyethylene, polypropylene, polystyrene, polyvinyl chloride, acrylonitrile-butadiene-styrene copolymer or the like.
- the end face of the photosensitive element roll may be provided with an end face separator from the viewpoint of end face protection, and a moisture-proof end face separator may be provided from the viewpoint of edge fusion resistance.
- the photosensitive element 1 may be packaged in, for example, a black sheet having low moisture permeability.
- the photosensitive element 1 can be suitably used for forming a resist pattern, and can be particularly preferably used for a method for manufacturing a wiring board, which will be described later. Since the photosensitive element 1 can suppress the penetration of the photosensitizer into the polyethylene film as compared with the conventional photosensitive element, at least one of the support 2 and the protective layer 4 may be a polyethylene film, as described above. It may be a low-density hydrocarbon-based polymer film or a stretched film thereof.
- FIG. 2 is a schematic view showing a method of manufacturing a wiring board (also referred to as a printed wiring board) according to an embodiment.
- a substrate having an insulating layer 11 and a conductor layer 12 formed on the insulating layer 11 is prepared.
- the conductor layer 12 may be, for example, a metallic copper layer.
- the photosensitive resin layer 13 is provided on the substrate (conductor layer 12).
- the photosensitive resin layer 13 made of the above-mentioned photosensitive resin composition is formed on the substrate (conductor layer 12) by using the above-mentioned photosensitive resin composition or the photosensitive element 1.
- the photosensitive resin layer 13 is formed by applying a photosensitive resin composition onto a substrate and drying it.
- the photosensitive resin layer 13 is pressed against the substrate while heating the photosensitive resin layer 3 of the photosensitive element 1 after removing the protective layer 4 from the photosensitive element 1.
- At the time of crimping at least one of the photosensitive resin layer 3 and the substrate may be heated at, for example, 70 to 130 ° C.
- the pressure at the time of crimping may be, for example, 0.1 to 1.0 MPa.
- the mask 14 is placed on the photosensitive resin layer 13, and the active light 15 is irradiated to expose a region other than the region where the mask 14 is placed to expose the photosensitive resin.
- the layer 13 is photocured.
- the light source of the active light 15 is, for example, an ultraviolet light source such as a carbon arc lamp, a mercury steam arc lamp, a high-pressure mercury lamp, a xenon lamp, a gas laser (argon laser, etc.), a solid-state laser (YAG laser, etc.), a semiconductor laser, or a visible light source. It may be there.
- a part of the photosensitive resin layer 13 is exposed by irradiating the active light 15 with a desired pattern by a direct drawing exposure method such as an LDI exposure method or a DLP exposure method without using the mask 14. You may.
- the region (uncured portion) other than the photocured portion formed by exposure is removed from the substrate by development, and the photocured portion (cured product of the photosensitive resin layer).
- a resist pattern 16 composed of the above is formed.
- the developing method may be, for example, wet development or dry development, preferably wet development.
- the developing solution is appropriately selected according to the composition of the photosensitive resin composition, and may be an alkaline developing solution or an organic solvent developing solution.
- the alkaline developing solution is an alkali hydroxide such as a hydroxide of lithium, sodium or potassium; an alkali carbonate such as a carbonate or bicarbonate of lithium, sodium, potassium or ammonium; an alkali metal such as potassium phosphate or sodium phosphate.
- an alkali hydroxide such as a hydroxide of lithium, sodium or potassium
- an alkali carbonate such as a carbonate or bicarbonate of lithium, sodium, potassium or ammonium
- an alkali metal such as potassium phosphate or sodium phosphate.
- Phosphate Alkali metal pyrophosphate such as sodium pyrophosphate, potassium pyrophosphate, etc .
- Boso Sodium metasilicate; Tetramethylammonium hydroxide
- Ethanolamine Ethylenediamine
- Diethylenetriamine 2-Amino-2-hydroxymethyl-1
- It may be an aqueous solution containing a base such as 3-propanediol; 1,3-diamino-2-propanol; morpholin.
- the alkaline developer is, for example, 0.1 to 5% by mass sodium carbonate aqueous solution, 0.1 to 5% by mass potassium carbonate aqueous solution, 0.1 to 5% by mass sodium hydroxide aqueous solution, 0.1 to 5% by mass. It may be an aqueous solution of sodium acid or the like.
- the pH of the alkaline developer may be, for example, 9-11.
- the alkaline developer may further contain a surface active agent, an antifoaming agent, an organic solvent and the like.
- organic solvent include acetone, ethyl acetate, alkoxyethanol having an alkoxy group having 1 to 4 carbon atoms, ethyl alcohol, isopropyl alcohol, butyl alcohol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether and the like.
- the content of the organic solvent may be 2 to 90% by mass based on the total amount of the alkaline developer.
- the organic solvent developer may contain an organic solvent such as 1,1,1-trichloroethane, N-methylpyrrolidone, N, N-dimethylformamide, cyclohexanone, methyl isobutyl ketone and ⁇ -butyrolactone.
- the organic solvent developer may further contain 1 to 20% by mass of water.
- the resist pattern 16 is further cured by further heating at 60 to 250 ° C. or further exposure at 0.2 to 10 J / cm 2 as necessary. You may.
- the wiring layer 17 is formed by, for example, plating a portion of the conductor layer 12 where the resist pattern 16 is not formed.
- the wiring layer 17 may be made of the same material as the conductor layer 12, or may be made of a different material.
- the wiring layer 17 may be, for example, a metallic copper layer.
- the plating treatment may be one or both of an electrolytic plating treatment and an electroless plating treatment.
- the resist pattern 16 is removed, and the conductor layer 12 provided at a position corresponding to the resist pattern 16 is removed. As a result, the wiring board 18 in which the wiring layer 17 is formed on the board is obtained.
- the resist pattern 16 can be removed by, for example, developing with a strong alkaline aqueous solution by a dipping method, a spray method, or the like.
- the strongly alkaline aqueous solution may be, for example, a 1 to 10 mass% sodium hydroxide aqueous solution, a 1 to 10 mass% potassium hydroxide aqueous solution, or the like.
- the conductor layer 12 can be removed by an etching process.
- the etching solution is appropriately selected according to the type of the conductor layer 12, and may be, for example, a cupric chloride solution, a ferric chloride solution, an alkali etching solution, a hydrogen peroxide etching solution, or the like.
- the mixture is stirred while blowing nitrogen gas into the flask and heated to 80 ° C. I let you.
- the solution (a) was added dropwise to the mixed solution in the flask over 4 hours at a constant dropping rate, and then the mixture was stirred at 80 ° C. for 2 hours.
- the solution (b) was added dropwise to the solution in the flask over 10 minutes at a constant dropping rate, and then the solution in the flask was stirred at 80 ° C. for 3 hours. Further, the solution in the flask was heated to 95 ° C.
- the weight average molecular weight was measured by gel permeation chromatography (GPC) and derived by conversion using a standard polystyrene calibration curve.
- GPC condition Pump: Hitachi L-6000 type (manufactured by Hitachi, Ltd., product name)
- Eluent tetrahydrofuran Measurement temperature: 40 ° C
- Flow rate 2.05 mL / min
- Detector Hitachi L-3300 type RI (manufactured by Hitachi, Ltd., product name)
- the glass transition temperature was measured using a DSC (PerkinElmer, DSC-7 type) under the conditions of a sample amount of 10 mg, a heating rate of 10 ° C./min, and a measurement atmosphere: air.
- the acid value was measured by a neutralization titration method based on JIS K0070. First, a solution of the binder polymer was heated at 130 ° C. for 1 hour to remove volatiles to obtain a solid content. Then, after 1 g of the solid binder polymer was precisely weighed, 30 g of acetone was added to the binder polymer, and this was uniformly dissolved to obtain a resin solution. Next, an appropriate amount of phenolphthalein, which is an indicator, was added to the resin solution, and neutralization titration was performed using a 0.1 mol / L potassium hydroxide aqueous solution. Then, the acid value was calculated by the following formula.
- Acid value 0.1 x V x f1 x 56.1 / (Wp x I / 100)
- V is the titration amount (mL) of the 0.1 mol / L potassium hydroxide aqueous solution used for titration
- f1 is the factor (concentration conversion coefficient) of the 0.1 mol / L potassium hydroxide aqueous solution
- Wp is the measured resin solution.
- the mass (g) and I of the above indicate the ratio (mass%) of the non-volatile content in the measured resin solution.
- Examples 1 to 9 and Comparative Examples 1 to 3 ⁇ Preparation of photosensitive resin composition>
- Each of the components shown in Table 2 was mixed in the blending amount (part by mass) shown in the same table to prepare a photosensitive resin composition.
- the blending amount (parts by mass) of the component (A) shown in Table 2 is the mass of the non-volatile component (solid content). Details of each component shown in Table 2 are as follows.
- BHT 2,6-di-tert-butyl-p-cresol (antioxidant, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.)
- LCV Leuco Crystal Violet (manufactured by Yamada Chemical Co., Ltd.)
- SF-808H Mixture of carboxybenzotriazole, 5-amino-1H-tetrazole, methoxypropanol (manufactured by Sanwa Kasei Co., Ltd.)
- LA-7RD 4-TEMPO (manufactured by Asahi Denka Kogyo Co., Ltd.) MKG: Malachite Green (manufactured by Osaka Organic Chemical Industry Co., Ltd.)
- a polyethylene terephthalate film having a thickness of 16 ⁇ m (manufactured by Teijin Co., Ltd., trade name “HTF-01”) is prepared as a support, and the photosensitive resin composition is applied onto the support so as to have a uniform thickness.
- 70 ° C. and 110 ° C. were sequentially dried in a hot air convection dryer to form a photosensitive resin layer having a thickness of 25 ⁇ m after drying.
- a polyethylene film (manufactured by Tamapoli Co., Ltd., trade name "NF-15") is bonded onto this photosensitive resin layer as a protective layer, and a photosensitive element in which a support, a photosensitive resin layer, and a protective layer are laminated in order is formed. Obtained.
- a copper-clad laminate (base, manufactured by Hitachi Kasei Co., Ltd., trade name "MCL-E-679"), which is a glass epoxy material in which copper foil (thickness: 35 ⁇ m) is laminated on both sides, is applied to the surface roughening treatment liquid “MEC”.
- Surface treatment was performed using "Epoxy Bond CZ-8100" (manufactured by MEC COMPANY, trade name). Then, after washing with water, pickling and washing with water, it was dried with an air stream.
- the surface-treated copper-clad laminate was heated to 80 ° C., and the photosensitive elements were laminated so that the photosensitive resin layer was in contact with the copper surface while peeling off the protective layer.
- a copper-clad laminate, a photosensitive resin layer, and a laminate in which the support was laminated in this order were obtained.
- the obtained laminate was used as a test piece in the test shown below.
- Lamination was performed using a heat roll at 110 ° C. at a crimping pressure of 0.4 MPa and a roll speed of 1.5 m / min.
- the laminate was cut into 5 cm squares to obtain a test piece for measuring the minimum development time. After peeling the support from the test piece, the unexposed photosensitive resin layer was spray-developed at a pressure of 0.15 MPa using a 1% by mass sodium carbonate aqueous solution at 30 ° C., and the unexposed portion of 1 mm or more was removed.
- the shortest development time was defined as the shortest time that could be visually confirmed.
- the nozzle used was a full cone type. The distance between the test piece and the tip of the nozzle was 6 cm, and the test pieces were arranged so that the center of the test piece and the center of the nozzle coincided with each other. The shorter the minimum development time (unit: seconds), the better the developability. The results are shown in Table 2.
- the support was peeled off from the laminate to expose the photosensitive resin layer, and the unexposed portion was removed by spraying a 1% by mass sodium carbonate aqueous solution at 30 ° C. for 60 seconds.
- the space portion (unexposed portion) is removed without residue, and the line portion (exposed portion) is formed by the minimum value of the line width / space width in the resist pattern formed without meandering and chipping.
- Adhesion was evaluated. The smaller this value is, the better the adhesion is. The results are shown in Table 2.
- the line thickness was evaluated by measuring the difference between the design dimension of the line width in the drawing pattern and the line width (top width) of the formed resist pattern, and evaluating it according to the following evaluation criteria. The results are shown in Table 2.
- Photosensitive element 1 ... Photosensitive element, 2 ... Support, 3, 13 ... Photosensitive resin layer, 4 ... Protective layer, 11 ... Insulating layer, 12 ... Conductor layer, 14 ... Mask, 15 ... Active light, 16 ... Resist pattern, 17 ... wiring layer, 18 ... wiring board.
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Abstract
Description
本実施形態に係る感光性樹脂組成物は、(A)成分:バインダーポリマーと、(B)成分:光重合性化合物と、(C)成分:光重合開始剤と、(D)成分:クマリン系増感剤と、を含有する。ここで、(A)成分は、ベンジル(メタ)アクリレートに基づく構造単位を有する。また、本実施形態に係る感光性樹脂組成物は、(E)成分:重合禁止剤を更に含有していてもよい。以下、各成分について説明する。
感光性樹脂組成物は、(A)成分の1種又は2種以上を含んでいる。(A)成分としては、ベンジル(メタ)アクリレートに基づく構造単位を有するバインダーポリマーを含有する。なお、上記ベンジル(メタ)アクリレートの芳香環には置換基を有していてもよい。
感光性樹脂組成物は、(B)成分の1種又は2種以上を含んでいる。(B)成分は、光により重合する化合物であればよく、例えば、エチレン性不飽和結合を有する化合物であってよい。
感光性樹脂組成物は、(C)成分の1種又は2種以上を含んでいる。(C)成分としては、2,4,5-トリアリールイミダゾール二量体、芳香族ケトン化合物、ベンゾイン化合物、ホスフィンオキサイド化合物等が挙げられる。
感光性樹脂組成物は、(D)成分の1種又は2種以上を含んでいる。(D)成分は、光増感剤として用いられる。(D)成分としては、下記一般式(1)で表される化合物が挙げられる。
感光性樹脂組成物は、レジストパターン形成時の未露光部における重合を抑制し、解像度を更に向上させる観点から、(E)成分:重合禁止剤を更に含有してもよい。重合禁止剤は、例えば、tert-ブチルカテコール、4-ヒドロキシ-2,2,6,6-テトラメチルピペリジン-N-オキシル等であってよい。
図1は、一実施形態に係る感光性エレメントの模式断面図である。図1に示すように、感光性エレメント1は、支持体2と、支持体2上に設けられた感光性樹脂層3と、感光性樹脂層3の支持体2と反対側に設けられた保護層4とを備えている。
図2は、一実施形態に係る配線基板(プリント配線板とも呼ばれる)の製造方法を示す模式図である。この製造方法では、まず、図2(a)に示すように、絶縁層11と、絶縁層11上に形成された導体層12とを備える基板(例えば回路形成用基板)を用意する。導体層12は、例えば金属銅層であってよい。
表1に示す単量体を、同表に示す配合量(単位:質量部)でアゾビスイソブチロニトリル0.9質量部と共に混合し、溶液(a)を調製した。メチルセロソルブ30質量部及びトルエン20質量部の混合液(x)50質量部に、アゾビスイソブチロニトリル0.6質量部を溶解して溶液(b)を調製した。撹拌機、還流冷却器、温度計、滴下ロート及び窒素ガス導入管を備えたフラスコに、混合液(x)を500g投入した後、フラスコ内に窒素ガスを吹き込みながら撹拌し、80℃まで昇温させた。フラスコ内の上記混合液に、滴下速度を一定にして上記溶液(a)を4時間かけて滴下した後、80℃にて2時間撹拌した。次いで、フラスコ内の溶液に、滴下速度を一定にして上記溶液(b)を10分間かけて滴下した後、フラスコ内の溶液を80℃にて3時間撹拌した。さらに、フラスコ内の溶液を30分間かけて95℃まで昇温させ、95℃にて2時間保温した後、撹拌を止め、室温(25℃)まで冷却して、バインダーポリマーA-1~A-3の溶液を得た。バインダーポリマーA-1~A-3の溶液の不揮発分(固形分)は49.0質量%であった。バインダーポリマーA-1~A-3の重量平均分子量(Mw)、ガラス転移温度(Tg)、及び、酸価を表1に示す。
(GPC条件)
ポンプ:日立 L-6000型(株式会社日立製作所製、商品名)
カラム:以下の計3本
Gelpack GL-R420
Gelpack GL-R430
Gelpack GL-R440(以上、日立化成株式会社製、商品名)
溶離液:テトラヒドロフラン
測定温度:40℃
流量:2.05mL/分
検出器:日立 L-3300型RI(株式会社日立製作所製、商品名)
酸価=0.1×V×f1×56.1/(Wp×I/100)
式中、Vは滴定に用いた0.1mol/L水酸化カリウム水溶液の滴定量(mL)、f1は0.1mol/L水酸化カリウム水溶液のファクター(濃度換算係数)、Wpは測定した樹脂溶液の質量(g)、Iは測定した上記樹脂溶液中の不揮発分の割合(質量%)を示す。
<感光性樹脂組成物の調製>
表2に示す各成分を、同表に示す配合量(質量部)で混合することにより、感光性樹脂組成物をそれぞれ調製した。なお、表2に示す(A)成分の配合量(質量部)は、不揮発分の質量(固形分量)である。表2に示す各成分の詳細については、以下の通りである。
FA-321M(70):2,2-ビス(4-(メタクリロキシエトキシ)フェニル)プロパン(エチレンオキサイド平均10mol付加物)のプロピレングリコールモノメチルエーテル70%溶液(日立化成株式会社製)
FA-137M:EO変性トリメチロールプロパントリメタクリレート(日立化成株式会社製)
(C)成分
BCIM:2,2’-ビス(o-クロロフェニル)-4,4’,5,5’-テトラフェニル-1,2’-ビイミダゾール(Hampford社製)
Coumarin 102:2,3,6,7-テトラヒドロ-9-メチル-1H,5H,11H-[1]ベンゾピラノ[6,7,8-ij]キノリジン-11-オン(東京化成工業社製)
(D)’成分
DBA:9,10-ジブトキシアントラセン(川崎化成工業株式会社製)
(E)成分
DIC-TBC-20:4-tert-ブチルカテコール(DIC株式会社製)
BHT:2,6-ジ-tert-ブチル-p-クレゾール(酸化防止剤、富士フイルム和光純薬株式会社製)
LCV:ロイコクリスタルバイオレット(山田化学工業株式会社製)
SF-808H:カルボキシベンゾトリアゾール、5-アミノ-1H-テトラゾール、メトキシプロパノールの混合物(サンワ化成株式会社製)
LA-7RD:4-TEMPO(旭電化工業株式会社製)
MKG:マラカイトグリーン(大阪有機化学工業株式会社製)
TLS:トルエン
MAL:メタノール
ACS:アセトン
支持体として厚さ16μmのポリエチレンテレフタレートフィルム(帝人株式会社製、商品名「HTF-01」)を用意し、支持体上に、感光性樹脂組成物を厚さが均一になるように塗布した後、70℃及び110℃の熱風対流式乾燥器で順次乾燥して、乾燥後の厚さが25μmである感光性樹脂層を形成した。この感光性樹脂層上に保護層としてポリエチレンフィルム(タマポリ株式会社製、商品名「NF-15」)を貼り合わせ、支持体と感光性樹脂層と保護層とが順に積層された感光性エレメントを得た。
銅箔(厚さ:35μm)を両面に積層したガラスエポキシ材である銅張積層板(基板、日立化成株式会社製、商品名「MCL-E-679」)を、表面粗化処理液「メックエッチボンドCZ-8100」(メック株式会社製、商品名)を用いて表面処理した。次いで、水洗、酸洗及び水洗後、空気流で乾燥した。表面処理された銅張積層板を80℃に加温し、保護層を剥離しながら、感光性樹脂層が銅表面に接するように、上記感光性エレメントをそれぞれラミネートした。これにより、銅張積層板、感光性樹脂層、及び、支持体の順に積層された積層体をそれぞれ得た。得られた積層体は、以下に示す試験における試験片として用いた。なお、ラミネートは、110℃のヒートロールを用いて、0.4MPaの圧着圧力、1.5m/分のロール速度で行った。
(吸光度の測定)
感光性樹脂層の吸光度を、UV分光光度計((株)日立ハイテクノロジーズ製、分光光度計U-3310)を用いて測定した。測定は、測定側に保護層を剥離した感光性エレメントを置き、リファレンス側に支持フィルムを置き、吸光度モードにより波長300~700nmまでを連続測定し、波長375nm及び波長405nmにおける値を読みとることにより行った。結果を表2に示す。
上記積層体を5cm四方に切断し、最小現像時間測定用の試験片を得た。試験片から支持体を剥離した後、30℃の1質量%炭酸ナトリウム水溶液を用いて、露光していない感光性樹脂層を0.15MPaの圧力でスプレー現像し、1mm以上の未露光部が除去されたことを目視で確認できる最短の時間を、最短現像時間とした。ノズルは、フルコーンタイプを使用した。上記試験片とノズル先端との距離は6cmであり、試験片の中心とノズルの中心が一致するように配置した。最小現像時間(単位:秒)が短いほど、現像性が良好であることを意味する。結果を表2に示す。
ライン幅(L)/スペース幅(S)(以下、「L/S」と記す。)が3/400~30/400(単位:μm)である描画パターンを用いて、41段ステップタブレットの残存段数が14段となるエネルギー量で上記積層体の感光性樹脂層に対して露光(描画)を行った。
上記密着性の評価で作製したライン幅10μmのレジストパターンを走査型電子顕微鏡で観察し、レジストパターンの形状、及び、線太りの有無を評価した。レジストパターン形状は、レジストパターンの頂部の幅と底部の幅との比(底部幅/頂部幅)に基づき、下記評価基準により評価した。結果を表2に示す。
A:断面形状が矩形(底部幅/頂部幅が0.9以上)
B:断面形状が小テーパー形状(底部幅/頂部幅が0.8以上0.9未満)
C:断面形状がテーパー形状(底部幅/頂部幅が0.8未満)
A:差が0.5μm以下
B:差が0.5μm超1.0μm以下
C:差が1.0μm超2.0μm以下
D:差が2.0μm超
Claims (20)
- ベンジル(メタ)アクリレートに基づく構造単位を有するバインダーポリマーと、光重合性化合物と、光重合開始剤と、クマリン系増感剤と、を含有する感光性樹脂組成物。
- 前記クマリン系増感剤の含有量が、前記バインダーポリマー及び前記光重合性化合物の総量100質量部に対して、0.01~0.5質量部である、請求項1に記載の感光性樹脂組成物。
- 前記バインダーポリマーにおいて、ベンジル(メタ)アクリレートに基づく構造単位の含有割合が、前記バインダーポリマーを構成する単量体の全量を基準として、10~60質量%である、請求項1又は2に記載の感光性樹脂組成物。
- 前記バインダーポリマーが、スチレンに基づく構造単位を有する、請求項1~3のいずれか一項に記載の感光性樹脂組成物。
- 前記バインダーポリマーにおいて、スチレンに基づく構造単位の含有割合が、前記バインダーポリマーを構成する単量体の全量を基準として、10~50質量%である、請求項4に記載の感光性樹脂組成物。
- 前記バインダーポリマーが、(メタ)アクリル酸アルキルエステルに基づく構造単位を有する、請求項1~5のいずれか一項に記載の感光性樹脂組成物。
- 前記バインダーポリマーにおいて、(メタ)アクリル酸アルキルエステルに基づく構造単位の含有割合は、前記バインダーポリマーを構成する単量体の全量を基準として、5~40質量%である、請求項6に記載の感光性樹脂組成物。
- 前記バインダーポリマーが、(メタ)アクリル酸に基づく構造単位を有する、請求項1~7のいずれか一項に記載の感光性樹脂組成物。
- 前記バインダーポリマーにおいて、(メタ)アクリル酸に基づく構造単位の含有割合は、前記バインダーポリマーを構成する単量体の全量を基準として、10~40質量%である、請求項8に記載の感光性樹脂組成物。
- 重合禁止剤を含有する、請求項1~9のいずれか一項に記載の感光性樹脂組成物。
- 前記重合禁止剤の含有量が、前記バインダーポリマー及び前記光重合性化合物の総量100質量部に対して、0.003質量部以下である、請求項10に記載の感光性樹脂組成物。
- 酸化防止剤として2,6-ジ-tert-ブチル-p-クレゾールを含有する、請求項1~11のいずれか一項に記載の感光性樹脂組成物。
- 前記2,6-ジ-tert-ブチル-p-クレゾールの含有量が、前記バインダーポリマー及び前記光重合性化合物の総量100質量部に対して、0.002質量部超である、請求項12に記載の感光性樹脂組成物。
- 前記光重合開始剤は、2,4,5-トリアリールイミダゾール二量体を含有する、請求項1~13のいずれか一項に記載の感光性樹脂組成物。
- 前記光重合性化合物は、ビスフェノールA型ジ(メタ)アクリレート化合物を含有する、請求項1~14のいずれか一項に記載の感光性樹脂組成物。
- 前記ビスフェノールA型ジ(メタ)アクリレート化合物が、2,2-ビス(4-((メタ)アクリロキシペンタエトキシ)フェニル)プロパン及び/又は2,2-ビス(4-((メタ)アクリロキシジエトキシ)フェニル)プロパンを含む、請求項15に記載の感光性樹脂組成物。
- ロイコクリスタルバイオレットを含有する、請求項1~16のいずれか一項に記載の感光性樹脂組成物。
- 支持体と、該支持体上に請求項1~17のいずれか一項に記載の感光性樹脂組成物を用いて形成された感光性樹脂層と、を備える感光性エレメント。
- 請求項1~17のいずれか一項に記載の感光性樹脂組成物又は請求項18に記載の感光性エレメントを用いて感光性樹脂層を基板上に設ける工程と、
前記感光性樹脂層の一部を光硬化させる工程と、
前記感光性樹脂層の未硬化部分を除去してレジストパターンを形成する工程と、
前記基板の前記レジストパターンが形成されていない部分に配線層を形成する工程と、
を備える、配線基板の製造方法。 - 巻芯と、当該巻芯に巻回された請求項18に記載の感光性エレメントと、を備える、感光性エレメントロール。
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| CN1950750B (zh) * | 2004-05-12 | 2012-10-24 | 旭化成电子材料株式会社 | 图案形成材料、图案形成设备和图案形成方法 |
| US8105759B2 (en) | 2005-07-05 | 2012-01-31 | Hitachi Chemical Company, Ltd. | Photosensitive resin composition, and, photosensitive element, method for forming resist pattern, method for manufacturing printed wiring board and method for manufacturing partition wall for plasma display panel using the composition |
| JP2007122024A (ja) | 2005-09-28 | 2007-05-17 | Toray Ind Inc | 感光性組成物 |
| JPWO2012067107A1 (ja) * | 2010-11-17 | 2014-05-12 | 日立化成株式会社 | 感光性樹脂組成物、感光性エレメント、レジストパターンの形成方法及びプリント配線板の製造方法 |
| JP2015087429A (ja) * | 2013-10-28 | 2015-05-07 | 日立化成株式会社 | 感光性樹脂組成物、感光性エレメント及びレジストパターンの形成方法 |
| JP6361191B2 (ja) * | 2014-03-14 | 2018-07-25 | 日立化成株式会社 | 感光性樹脂組成物、感光性エレメント、レジストパターンの形成方法及びタッチパネルの製造方法 |
| JPWO2016104585A1 (ja) * | 2014-12-25 | 2017-10-05 | 日立化成株式会社 | 感光性樹脂組成物、並びにこれを用いた感光性エレメント、レジストパターンの形成方法、及びプリント配線板の製造方法 |
| JP2017165897A (ja) * | 2016-03-17 | 2017-09-21 | 日本化薬株式会社 | クマリン化合物又はそれらの塩、並びにこれを含んだ顔料組成物 |
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2020
- 2020-02-18 WO PCT/JP2020/006346 patent/WO2021166083A1/ja not_active Ceased
- 2020-11-12 CN CN202411712325.2A patent/CN119395945A/zh active Pending
- 2020-11-12 CN CN202080018491.6A patent/CN113557474B/zh active Active
- 2020-11-12 WO PCT/JP2020/042340 patent/WO2021166339A1/ja not_active Ceased
- 2020-11-12 KR KR1020217027616A patent/KR20210113404A/ko not_active Ceased
- 2020-11-12 KR KR1020247033373A patent/KR20240150535A/ko active Pending
- 2020-11-12 KR KR1020237015831A patent/KR102716598B1/ko active Active
- 2020-11-12 JP JP2022501629A patent/JP7760999B2/ja active Active
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| JP2006163339A (ja) * | 2004-05-12 | 2006-06-22 | Fuji Photo Film Co Ltd | パターン形成材料、並びにパターン形成装置及びパターン形成方法 |
| JP2008304527A (ja) * | 2007-06-05 | 2008-12-18 | Hitachi Chem Co Ltd | 感光性樹脂組成物、これを用いた感光性エレメント、レジストパターンの形成方法及びプリント配線板の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113557474A (zh) | 2021-10-26 |
| KR20210113404A (ko) | 2021-09-15 |
| KR102716598B1 (ko) | 2024-10-14 |
| JPWO2021166339A1 (ja) | 2021-08-26 |
| CN113557474B (zh) | 2024-12-13 |
| KR102716598B9 (ko) | 2025-10-15 |
| KR20230070074A (ko) | 2023-05-19 |
| KR20240150535A (ko) | 2024-10-15 |
| WO2021166083A1 (ja) | 2021-08-26 |
| JP7760999B2 (ja) | 2025-10-28 |
| CN119395945A (zh) | 2025-02-07 |
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