WO2011046397A2 - 감광성 수지 조성물 및 이를 포함하는 드라이 필름 - Google Patents
감광성 수지 조성물 및 이를 포함하는 드라이 필름 Download PDFInfo
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- WO2011046397A2 WO2011046397A2 PCT/KR2010/007099 KR2010007099W WO2011046397A2 WO 2011046397 A2 WO2011046397 A2 WO 2011046397A2 KR 2010007099 W KR2010007099 W KR 2010007099W WO 2011046397 A2 WO2011046397 A2 WO 2011046397A2
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- photosensitive resin
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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
- G03F7/037—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polyamides or polyimides
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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
- G03F7/0755—Non-macromolecular compounds containing Si-O, Si-C or Si-N bonds
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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
- G03F7/0757—Macromolecular compounds containing Si-O, Si-C or Si-N bonds
-
- 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
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/285—Permanent coating compositions
- H05K3/287—Photosensitive compositions
Definitions
- Photosensitive resin composition and dry film including the same
- the present invention relates to a photosensitive resin composition and a dry film comprising the same. More specifically, the present invention can be developed with an aqueous alkali solution, not only has a high temperature required for curing, etc., but also includes a photosensitive resin composition exhibiting various physical properties suitable for use in a cover film of a printed wiring board or a laminate for semiconductors, and the like. It relates to a dry film.
- Polyimide or its precursor is used as a base film of a printed wiring board, a cover film of a highly integrated semiconductor device, or a printed wiring board due to excellent durability, heat resistance, flame retardancy, mechanical and electrical properties, and the like.
- a base film used together with copper (Cu) of copper clad laminate hereinafter referred to as 'CCL'
- 'CCL' copper clad laminate
- the polyimide film is used as a coverlay film (cover film) or the like for improving the bending resistance.
- the coverlay film is pre-batch processed and laminated on the CCL surface on which the circuit is formed by thermocompression bonding.
- the photosensitive resin composition can be thermally pressed on the circuit of the CCL, exposed and developed according to the pattern, and patterned to fine holes, which can be precisely punched, thereby miniaturizing the circuit.
- the dry film or its cured product formed from the photosensitive resin composition has a solder heat resistance, abrasion resistance (brittleness, flex resistance), and chemical resistance. , It was necessary to stratify various physical properties such as electrical insulation and flame retardancy.
- a photosensitive resin composition needs to include a precursor of the polyimide, for example, a polyamic acid.
- the polyamic acid is polyimidized to form the coverlay film and the like.
- the previously known polyamic acid generally silver of 350 ° C. or higher is required. do. If proceed polyimide screen through this Ko Un thermal curing, a low copper circuit column is not preferred because of oxidation and degradation problems, this may cause.
- the present invention provides a photosensitive resin composition which can be developed with an aqueous alkali solution, not only does not require a high temperature for curing, but also exhibits various physical properties suitable for use in a cover film of a printed wiring board or a laminate for semiconductors.
- the present invention also provides a dry film comprising the photosensitive resin composition and a pattern forming method using the same.
- the present invention provides a printed wiring board, a flexible circuit board, or a red worm body for a semiconductor obtained from the dry film.
- the present invention provides a polyamic acid comprising (A) at least one dia 1 ⁇ 2 compound comprising a compound of formula (1) and a polymer of at least one acid dianhydride; (B) a photopolymerizable compound having at least one polymerizable ethylenically unsaturated bond in the molecule; And (C) a photopolymerization initiator.
- X 1 to X 4 are each independently -0- or -NR'-, R 'are each independently hydrogen or an alkyl group having 1 to 3 carbon atoms, R 1 is a tetravalent having 5 to 18 carbon atoms Cyclic aliphatic hydrocarbon group or 6 to 6 carbon atoms 18 is a tetravalent aromatic hydrocarbon group, R 2 and R 3 are each independently an alkylene group having 1 to 6 carbon atoms, R 4 and R 5 are each independently hydrogen or an alkyl group having 1 to 6 carbon atoms, Ar 1 and Ar 2 is each independently an arylene group having 6 to 18 carbon atoms.
- X 1 to X 4 are -0-
- R 1 is a tetravalent aromatic hydrocarbon group having 6 to 10 carbon atoms
- R 2 and R 3 are each independently 1 to 3 carbon atoms.
- R 4 and R 5 are each independently hydrogen or an alkyl group having 1 to 3 carbon atoms
- Ar 1 and Ar 2 may be each independently an arylene group having 6 to 10 carbon atoms.
- the compound of Formula 1 may be a compound of Formula 2, which may be abbreviated as HEMA-DB:
- This invention also provides the dry film containing the said photosensitive resin composition.
- the present invention comprises the steps of exposing to the dry film; And it provides a pattern forming method comprising the step of developing the dry film with an aqueous alkali solution.
- the present invention also provides a printed wiring board, a flexible circuit board, and a semiconductor laminate including the cured product of the dry film.
- a photosensitive resin composition and a dry film according to a specific embodiment of the present invention will be described.
- a polyamic acid comprising at least one diamine compound comprising a compound of formula (1) and a polymer of at least one acid dianhydride
- a photopolymerizable compound having at least one polymerizable ethylenically unsaturated bond in the molecule
- a photopolymerization initiator is provided:
- X 1 to X 4 are each independently -0- or -NR'-, R 'is each independently hydrogen or an alkyl group having 1 to 3 carbon atoms, R 1 is a tetravalent having 5 to 18 carbon atoms A cyclic aliphatic hydrocarbon group or a tetravalent aromatic hydrocarbon group having 6 to 18 carbon atoms, R 2 and R 3 are each independently an alkylene group having 1 to 6 carbon atoms, and R 4 and R 5 are each independently hydrogen or 1 carbon atom. And an alkyl group of 6 to 6, and Ar 1 and Ar 2 are each independently an arylene group having 6 to 18 carbon atoms.
- the photosensitive resin composition includes a photopolymerizable compound and a photopolymerization initiator together with a polyamic acid that is a precursor of a polyimide, and is a polymer of a specific diamine compound of the polyamic acid, that is, the compound of formula 1 and an acid dianhydride, for example, Corresponds to the condensation polymer.
- a polyamic acid that is a precursor of a polyimide
- a polymer of a specific diamine compound of the polyamic acid that is, the compound of formula 1 and an acid dianhydride, for example, Corresponds to the condensation polymer.
- the polyamic acid for example, may be imidized (curing) at a relatively low temperature of about 150 to 230 ° C, through which, it is possible to form a polyimide film. Therefore, the said photosensitive resin composition is used for forming the cover film (coverlay film) of a printed wiring board, the circuit protection film of a flexible circuit board, or the interlayer insulation film of a semiconductor laminated body, etc., greatly reducing the possibility that a circuit will be oxidized or deteriorated. It can be used very preferably as a use.
- the film when the film is formed through a process such as curing after applying and patterning the photosensitive resin composition, such a film has excellent circuit filling properties (filling after lamination; It has been found that the "lamination after lamination"), heat resistance, flex resistance, insulation and chemical resistance and the like can be exhibited. Therefore, it can be used very preferably as a use for forming the cover film (coverlay film) of a printed wiring board, the circuit protection film of a flexible circuit board, etc.
- the excellent physical properties described above are expected to be related to the presence of photopolymerizable vinyl in the polyamic acid, the type of substituents bonded thereto, and the like. That is, "because, it becomes possible to form the other monomer (e.g., a photopolymerizable compound round) and the covalent bond to be added to the polyamic acid composition as the vinyl, between Consequently monomer and a polyamic acid (or polyimide) It is expected that a robust IPN (Interpenetrating Polymer Network) of chemical bonds can be formed. Therefore, the cured product or film obtained from the photosensitive resin composition seems to be able to exhibit more improved physical properties uniformly.
- IPN Interpenetrating Polymer Network
- Korean Patent Laid-Open Publication No. 2002-0042733 discloses a predetermined diamine compound and an acid dianhydride, and together with this, a polyamic acid and a polyimide obtained therefrom are disclosed.
- the photosensitive resin composition containing polyimide is mentioned, and the composition containing polyamic acid which is the precursor is not disclosed or implied.
- the photosensitive resin composition containing polyamic acid etc. can be used suitably as a cover film etc. of a printed wiring board. It does not imply that it is.
- the diamine compound and the polyamic acid disclosed in this publication are synamate structures in which substituted or unsubstituted phenyl and the like are bonded at positions corresponding to R 4 and R 5 in Formula 1, and photocrosslinking occurs without an initiator. Therefore, hydrogen or alkyl having 1 to 3 carbon atoms is bonded to the polyamic acid included in the composition of the embodiment which interacts with the photopolymerization initiator. And, due to such a difference, the polyamic acid of the published document not only exhibits different physical properties from the polyamic acid of one embodiment, but also for the purpose of forming a photosensitive resin composition or a cover film of a printed wiring board according to an embodiment of the present invention. It is expected to be difficult to use. On the other hand, it will be described in detail for each component of the photosensitive resin composition according to an embodiment of the invention described above.
- the polyamic acid used as the polyimide precursor in the photosensitive resin composition corresponds to at least one diamine compound and a polymer of at least one acid dianhydride, for example, a condensate, and as the diamine compound, It essentially contains a compound of.
- X 1 to X 4 are -0-
- R 1 is a tetravalent aromatic hydrocarbon group having 6 to 10 carbon atoms
- R 2 and R 3 are each independently an alkylene group having 1 to 3 carbon atoms
- R 4 and R 5 are each independently hydrogen or 1 to C carbon atoms. It is an alkyl group of 3, wherein Ar 1 and Ar 2 may each independently be an arylene group having 6 to 10 carbon atoms, preferably a compound of formula (2) (HEMA-DB) can be used more preferably.
- HEMA-DB compound of formula (2)
- diamine compounds may be used together.
- diamine compounds include p-PDA (p-phenylenediamine), m-PDA (m-phenylenediamine) and 4,4'-0DA. (4,4'-oxydianiline), 3,4'-0DA (3,4'-oxydianiline), BAPP (2,2-bis (4- [4-aminophenoxy] -phenyl) propane) ,
- TPER (1,3—bis (4-aminophenoxy) benzene), TPE—Q (l, 4-bis (4-aminophenoxy) benzene), and m-BAPS (2,2-bis (4- [ 3-aminophenoxy] phenyl) sulfone); at least one compound selected from the group consisting of:
- a silicone diamine compound of formula 3 may be used together:
- R 6 to R 9 each independently represent an aliphatic hydrocarbon group, a phenyl group or a hydroxy group having 1 to 12 carbon atoms, and d represents 1 to It is an integer of 5, k is an integer of 1-20.
- acid dianhydrides usable for forming the polyamic acid can be used without any particular limitation.
- acid dianhydrides include pyromellitic dianhydrides, 3,3'-4,4'-biphenyltetracarboxylic dianhydrides (BPDA), 3,3 ', 4,4' Benzophenonetetracarboxylic dianhydride, 4, 4'-oxydiphthalic anhydride (0DPA), 4,4 '-(4,4'-isopropylbiphenoxy) biphthalic anhydride , 2,2'— bis- (3,4-dicarboxylphenyl) nucleofluoropropane dianhydride and one or more compounds selected from the group consisting of TMEG (ethylene glycol bis-anhydro- trimellitate).
- TMEG ethylene glycol bis-anhydro- trimellitate
- the polyamic acid may be prepared by a method well known in the art.
- a polyamine may be prepared by dissolving a diamine compound such as the compound of Chemical Formula 1 in a solvent, adding an acid dianhydride compound to the solution, and then reacting it ('condensation polymerization', for example).
- the reaction of the diamine compound and the acid dianhydride is preferably carried out at about 24 hours before starting the reaction at 0 to 15 ° C until the reaction is completed in the temperature range of 10 to 40 ° C.
- the polyamic acid is preferably obtained by using a diamine compound and an acid dianhydride in a molar ratio of 1: 0.9 to 1: 1.1.
- the molar ratio of the diamine compound and the acid dianhydride is less than 1: 0.9, the molecular weight of the polyamic acid may be too low, making it difficult to prepare a polyimide having excellent mechanical properties.
- the molar ratio of the polyamine compound and the acid dianhydride exceeds 1: 1.1, the viscosity of the photosensitive resin composition may be so high that various processes required for coating and operation may be difficult.
- the weight average molecular weight of the polyamic acid is preferably 5,000 to 300, 000, and more preferably 8, 000 to 200, 000.
- the weight average molecular weight of the polyamic acid is less than 5,000, the viscosity of the photosensitive resin composition or the molecular weight such as polyamic acid is low, so that the physical properties of the polyimide resin prepared therefrom may be weak.
- the weight average molecular weight of the polyamic acid When it exceeds 300, 000, the viscosity of the photosensitive resin composition becomes too high and handling may become difficult.
- solvents used in the production of polyamic acid include toluene, N-methylpyrrolidinone (MP), ⁇ , ⁇ -dimethylacetamide (DMAc), tetrahydrofuran (tetrahydrofuran; THF), ⁇ , ⁇ - dimethylformamide (N.Ndimethyl formamide; DMF), dimethylsulfoxide (DMS0), cyclohexane, acetonitrile and combinations thereof
- MP N-methylpyrrolidinone
- DMAc ⁇ , ⁇ -dimethylacetamide
- THF tetrahydrofuran
- THF tetrahydrofuran
- DMF dimethylformamide
- DMS0 dimethylsulfoxide
- the photopolymerizable compound included in the photosensitive resin composition of one embodiment has at least one polymerizable ethylenically unsaturated bond in the molecule.
- the (meth) acrylate type compound containing one or more carbon double bonds can be used, or these 2 or more types can also be mixed and used.
- a (meth) acrylate compound having two double bonds capable of photopolymerization or one or more double bonds and one or more hydroxyl or epoxy groups may be used. More specifically, monofunctional acrylate or polyfunctional acrylate may be used, and in order to exhibit compatibility and good properties after film formation, one or more various functional groups including hydroxyl groups or epoxy groups may be included in the acrylate. In addition, an epoxy modified acrylate may be used to maintain good physical properties of the final cured product and adhesion to the copper foil.
- the (meth) acrylate compound shows good compatibility with the polyamic acid.
- developability and photosensitivity to the excellent aqueous alkali solution of the photosensitive resin composition can be realized.
- the modulus is lowered during the heat processing and the fluidity at the time of the thermal lamination It is possible to improve post-lamination filling to impart uneven circuit patterns.
- a thermal lamination process is possible even at a relatively low temperature.
- the dry film prepared from the photosensitive resin composition containing the (meth) acrylate compounds containing an epoxy group can improve the adhesive strength and hydrolysis resistance with copper foil.
- an E0 or P0 modified (meth) acrylate compound is preferable, and the compounds belonging thereto are A-BPE-10 and A-BPE 20 of NK Ester.
- Bisphenol A E0 modified (meth) acrylate, bisphenol F E0 modified (meth) acrylate, P0 modified (meta) such as A-BPE-30, BPE-500, BPE-900, Shinna Kamura Chemical Co., Ltd. Acrylates, SR-480, SR-602 or CD-542 from Stomer.
- (meth) acrylate compound which has two carbon-carbon double bonds which can be photopolymerized triethyleneglycol diacrylate, neopentylglycol diacrylate, 1, 6-nucleic acid diol diacrylate, 3-methyl- 1 , 5-pentanediol diacrylate , 2-butyl-2-ethyl-1,3-propanedi diacrylate 1,9-nonanediol diacrylate , polyethylene glycol diacrylate , PEG # 200 Acrylate, PEG # 400 diacrylate, PEG # 600 diacrylate and the like can be used.
- HEMA 2-hydroxyethyl methacrylate
- 2-hydroxypropyl methacrylate 2-hydroxy acrylate, 2-hydroxy propyl acrylate, 2-hydroxy Butyl methacrylate
- Phenyl glycidyl ester and the like can be used dill acrylate (Nippon Kayaku R- 128H), '1,6- nucleic dieul epoxy acrylate (Nippon Kayaku Kayarad R-167), Ebecryl 9695 .
- glycidyl compounds such as glycidyl (meth) acrylate (Glycidyl methacrylate), NK oligomer EA 1010 by Shin-Nakamura Chemical. , EA-6310 and the like can be used.
- Epoxy (meth) acrylates containing at least two or more hydroxyl groups in the (meth) acrylate-based compound improve the hydrolysis resistance of the final cured product and the adhesive strength to copper foil, and at the same time improve the solubility in the aqueous alkali solution. It is advantageous to shorten the time.
- NK oligomer EA-1020, EA-6320, EA-6340, Ebecryl 600, Japan Gunpowder ZAA-205, ZFA-266H and the like, but is not limited thereto.
- the photopolymerizable compound is a polyamic acid contained in the photosensitive resin composition.
- It may be included in an amount of 30 to 200 parts by weight based on 100 parts by weight.
- the content of the photopolymerizable compound is less than 30 parts by weight, the development properties and lamination after filling may decrease, and when it exceeds 200 parts by weight, heat resistance may decrease or mechanical properties of the film including cut resistance may decrease.
- the photosensitive resin composition mentioned above contains a photoinitiator.
- the photopolymerization initiator may be included in an amount of 0.3 to 10 parts by weight based on 100 parts by weight of the polyamic acid included in the photosensitive resin composition.
- the photocuring participation rate of the photopolymerization initiator is lowered.
- radicals that do not participate in curing may lower the physical properties of the film prepared from the photosensitive resin composition.
- Acetophenone type compounds such as (methylthio) phenyl] -2- morpholino propane- 1-one; 2,2-bis (2-chlorophenyl) -4,4 ', 5,5'-tetraphenyl2,2'-bis (0-chlorophenyl)- 4,4 ', 5,5'-tetrakis (3,4,5-trimethoxyphenyl) -1,2'-biimidazole, 2,2'-bis (2,3-dichlorophenyl) -4 , 4 ', 5,5'-tetraphenyl biimidazole, or 2,2'-bis (echlorophenyl) -4,4', 5,5'-tetraphenyl-1,2'-biimidazole, etc.
- Biimidazole type compounds 3- ⁇ 4- [2,4-bis (trichloromethyl) -S-triazine-6-yl] phenylthio ⁇ propionic acid, 1,1,1,3,3,3-nuxafluoroisopropyl -3- ⁇ 4- [2,4-bis (trichloromethyl) -s-triazin-6-yl] phenylthio ⁇ propionate, ethyl-2- ⁇ 4- [2,4-bis (trichloro Methyl) -s-triazin-6-yl] phenylthio ⁇ acetate, 2-epoxyethyl-2- ⁇ 4- [2,4-bis (trichloromethyl) -S-triazine-6-yl] phenylthio ⁇ Acetate, cyclonuxyl-2- ⁇ 4- [2,4-bis (trichloromethyl) _s-triazine-6-yl] phenylthio ⁇ acetate
- any photopolymerization initiator known to be usable in the photosensitive resin composition may be used without particular limitation.
- Commercialized examples of such photopolymerization initiators include the trade names Igacure 651, Igacure 819, Igacure 369, and the like.
- the photosensitive resin composition according to an embodiment of the present invention may further include a solvent, in addition to the above three components, and also, additives such as photocrosslinking sensitizer, curing accelerator, flame retardant, antifoaming agent, leveling agent or gel inhibitor It may further include.
- additives such as photocrosslinking sensitizer, curing accelerator, flame retardant, antifoaming agent, leveling agent or gel inhibitor.
- the additional components such as a solvent and an additive, are demonstrated concretely as follows.
- the photosensitive resin composition may generate radicals as an auxiliary component. It may include a photocrosslinking sensitizer to promote and / or a cure accelerator to promote curing. These components may be included in amounts of 0.01 to 10 parts by weight, respectively, based on 100 parts by weight of the polyamic acid described above, and preferably in amounts of 0.1 to 5 parts by weight, respectively, based on 100 parts by weight of polyamic acid. When it is out of this content range, the photocrosslinking sensitization effect may not be obtained at all, or may have an undesirable effect on developability.
- benzophenone 4, 4-bis (dimethylamino) benzophenone, 4, 4-bis (diethylamino) benzophenone, 2, 4, 6- trimethylamino benzophenone, a methyl- benzoyl
- Benzophenone compounds such as benzoate, 3,3-dimethyl-4-methoxybenzophenone or 3,3,4,4-tetra (t-butylperoxycarbonyl) benzophenone
- Fluorenone compounds such as 9-fluorenone, 2-chloro-9- fluorenone and 2-methyl-9- fluorenone
- Xanthone compounds such as xan
- Typical curing accelerators include aromatic heterocyclic amine compounds, and the aromatic heterocyclic amine compounds include pyridine, triazole, and unsubstituted or substituted with a hydrocarbon group having 3 to 12 carbon atoms.
- aromatic heterocyclic amine compounds include pyridine, triazole, and unsubstituted or substituted with a hydrocarbon group having 3 to 12 carbon atoms.
- One or more selected from the group consisting of imidazole, quinoline (quinol ine), triazine and derivatives thereof can be used.
- imidazole benzoimidazole, 1-methyl imidazole, 2-methyl imidazole, ethyl imidazole, 1,2,4-triazole, 1,2, 3-triazole, 2-mergatobenzooxa Sol, 2,5-dimercapto-1,3,4-thiadiazole, 2-mercatobenzoxazole, 2,5-dimercap-1,3,4-thiadiazole, 2-mercapto-4 , 6-dimethylaminopyridine, 3-hydroxypyridine, 4-hydroxypyridine, 2,4-dimethylpyridine, 4-pyridinemethanol, nicotine aldehyde oxime, isonicotinaldehyde oxime, ethyl picolinate, ethyl isophyco Tinate, 2,2'-bipyridyl, 4, 4'-bipyridyl, 3-methylpyrididyl, quinoline, isoquinoline, phenan sridine, 2-mergatobenzoimidazole
- the photosensitive resin composition described above may further include a flame retardant such as a phosphorus flame retardant.
- a flame retardant such as a phosphorus flame retardant.
- Phosphorus-based flame retardants may be compatible with compositions in solution, including polyamic acids, photopolymerizable compounds, and the like. That is, the phosphorus-based flame retardant can impart the required flame retardancy while having compatibility with the photosensitive resin composition.
- a flame retardant may be included in an amount of 0.1 to 20% by weight, more preferably 0.5 to 5% by weight, based on the ratio of the content of phosphorus atoms to the total weight of solids excluding polyamic acid in the photosensitive resin composition.
- Phosphorus-based flame retardants include phosphorus and contain (meth) acrylates in At least one or more of the compound having a compound having a compound having a compound having one or more epoxy groups or (meth) acryl groups in the compound and at least one epoxy group or (meth) acryl group in the molecule can be used, specifically 2-hydroxyethyl methacrylate Phosphate (tradename: KAYAMER PM-2), 2-hydroxyethyl methacrylate caprolactone phosphate (trade name; KAYAMER PM-21), 10- (2, 5-dihydroxyphenyl) -10H-9-oxa-10 -Phosphaphenanthrene-10-oxide (HCA-HQ), 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (
- Methoxypolypropylene glycol (meth) acrylate ' 2-hydroxypropyl (meth) acrylate,
- the compound selected from the group consisting of isopropyldiol di (meth) acrylate and isopropylene glycol di (meth) acrylate may be used alone or in combination of two or more thereof.
- the photosensitive resin composition mentioned above may further contain a solvent as a medium of each component mentioned above.
- a solvent a polyamic acid, a photopolymerizable compound, a photopolymerization initiator, a phosphorus flame retardant, or the like may be used.
- a solvent that may be easily dried during the coating process of the photosensitive resin composition may be used.
- the content of such a solvent is preferably 300 to 700 parts by weight based on 100 parts by weight of the polyamic acid in the photosensitive resin composition.
- the solvent is preferably an aprotic polar organic solvent in view of solubility, and specifically N-methyl- 2-pyridone, N-acetyl-2-pyridone, N-benzyl-2-pyrrolidone ⁇ , ⁇ -dimethylformamide , ⁇ , ⁇ -dimethylacetamide , Dimethyl sulfoxide, nuxamethylphosphortriamide, N-acetyl- ⁇ -caprolactam, dimethylimidazolidinone, diethylene glycol dimethyl ether triethylene glycol dimethyl ether, butyrolactone, dioxane, dioxolane, Single or two or more mixed solvents selected from the group consisting of tetrahydrofuran, chloroform and methylene chloride can be used.
- the above-mentioned photosensitive resin composition may further include an additive such as an antifoaming agent, a leveling agent or a gel preventive agent, in order to facilitate coating or curing as necessary, or to improve other physical properties, and specific examples of the additive Kinds and contents are obvious to those skilled in the art.
- an additive such as an antifoaming agent, a leveling agent or a gel preventive agent, in order to facilitate coating or curing as necessary, or to improve other physical properties, and specific examples of the additive Kinds and contents are obvious to those skilled in the art.
- the invention provides a dry film containing the above-described photosensitive resin composition.
- a dry film can be obtained by apply
- Polyethylene terephthalate polyethylene naphthalate, polypropylene, polyethylene, cellulose triacetate, cellulose diacetate, poly (meth) acrylic acid alkyl ester, poly (meth) acrylic acid ester copolymer, polyvinyl chloride, poly Various plastics such as vinyl alcohol, polycarbonate, polystyrene, cellophane, polyvinylidene chloride copolymer, polyamide, polyimide, vinyl chloride, vinyl acetate copolymer, polytetrafluoroethylene, and polytrifluoroethylene A film is mentioned. Moreover, the composite material which consists of two or more of these materials can also be used, The polyethylene terephthalate film excellent in light transmittance is especially preferable.
- the thickness of the support is preferably 5 to 150 im, more preferably 10 to 50 im.
- the coating method of the photosensitive resin composition is not specifically limited, For example, the spray method, the coating method, the rotary coating method, the slit coating method, the extrusion coating method, the curtain coating method, A die coating method, a wire bar coating method or a knife coating method can be used. Drying of the photosensitive resin composition varies depending on the type and content ratio of each component or organic solvent, but is preferably performed at 60 to 100 ° C. for 30 seconds to 15 minutes.
- coats the said photosensitive resin composition on a support body, and is dried 10-50 are more preferable. If the film thickness of the dry film is less than 5, the insulation is not good, and if it exceeds 95, the resolution may be lowered.
- such a dry film can be developed with an aqueous alkali solution after exposure to form a pattern without the use of a flammable organic solvent or the like previously used. For example, exposing the dry film; And developing the dry film with an aqueous alkali solution. For this reason, the dry film can greatly enjoy problems in terms of work stability and environmental aspects of the photosensitive resin composition used previously.
- the film obtained by curing after pattern formation of such dry film may exhibit excellent physical properties such as lamination after filling and heat resistance, and may be cured (or imidized) even at a relatively low temperature. It can be used very preferably as a use for forming, or forming an interlayer insulation film of a semiconductor laminate.
- a printed wiring board manufactured using the dry film.
- Such a printed wiring board may include a cured product of the dry film.
- a dry film is pre-laminated at a temperature of 25 to 50 ° C. by a method such as flat pressing or pressing on a circuit forming surface, and vacuum lamination at 60 to 90 ° C.
- a photosensitive film can be formed through a vacuum lamination method.
- the dry film can be patterned by exposing using a photomask to form fine holes or fine width lines. The exposure amount Depending on the type of light source used for exposure and the thickness of the film, generally
- the actinic rays may be electron beams, ultraviolet rays, X-rays, and the like, but are preferably ultraviolet rays, and a high pressure mercury lamp, a low pressure mercury lamp, or a halogen lamp may be used as the light source.
- the solution is generally immersed in a developing solution using an immersion method.
- an alkaline aqueous solution such as an aqueous sodium hydroxide solution or an aqueous sodium carbonate solution is used.
- the solution is washed with water.
- the polyamic acid is imidized to polyimide according to the pattern obtained by development through heat treatment, and the heat treatment temperature is preferably 150 to 230 ° C. required for imidization.
- the heating temperature is more effective to continuously increase the temperature over 2 to 4 steps with a suitable temperature profile, may be cured at a constant temperature in some cases.
- a flexible circuit board or a laminate for a semiconductor manufactured using the dry film may include a cured product of an Sangha dry film.
- the method of applying the dry film to the flexible circuit board or the semiconductor laminate is as described in detail for the printed wiring board. Otherwise, the flexible circuit board or the semiconductor laminate may be manufactured according to a conventional manufacturing method. have.
- a circuit board or semiconductor device to which the cured product of the dry film is applied can be obtained as a protective film of a flexible circuit board, an interlayer insulating film of a semiconductor laminate, or the like.
- a polyimide precursor (polyamic acid) having photosensitivity was prepared using a diamine compound having a new structure of acryloyl group.
- a photosensitive resin composition comprising a compound was prepared, and the final cured product obtained from the composition had excellent overall physical properties, and in particular, the solder heat resistance or cut resistance (brittleness, flex resistance), chemical resistance, and electrical insulation after curing were properly protected by appropriate protection of the circuit.
- the photosensitive film and laminated body which satisfy all the physical properties, such as flame retardance, can be provided.
- the photosensitive resin composition may be developed by an aqueous alkali solution, and the polyamic acid included therein may be imidized at a relatively low temperature.
- the photosensitive resin composition can be very preferably used for forming a cover film (coverlay film) of various printed wiring boards, a circuit protection film of a flexible circuit board, or an interlayer insulating film of a semiconductor laminate.
- the monomer (HEMA—DB) was synthesized through the following synthesis step of Banung Formula 1.
- each component shown in Table 1 was mixed based on the blending ratio (parts by weight) of the solid content to obtain a photosensitive resin composition.
- PA Poly Amic Acid is a polyamic acid (solid content is 30 wt%)
- EA-1020 is an epoxy (meth) acrylate containing two or more hydroxyl groups as a photopolymerizable compound (manufactured by Shin-Nakamura Chemical Co., Ltd.)
- DPEA-12 is a photopolymerizable compound that nucleates E0-modified dipentaerythride.
- 1651 and 1819 are Igacure 651 and Igacure 819 as photopolymerization initiators, respectively, and 1,2,4-triazole are Aldrich products.
- Example 6 Example 7 Example 8 Example 9 Polyamic Acid Preparation Example 1 Preparation Example 1 Preparation Example 3 Preparation Example 4
- PAA (30 wt) 100 100 100 100
- A-9300 is tris (2-hydroxyethyl) isocyanurate (manufactured by Shinnakamura)
- EA-6320 is phenol novolac modified epoxy acrylate (manufactured by Shinnakamura)
- R-115 is bisphenol A oligomer diacrylate (manufactured by NIPPON KAYARAD)
- ZFA-266H is bisphenol F novolac modified epoxy acrylate (manufactured by NIPPON KAYARAD)
- ITX is a photosensitizer as isopropylthioxanthon.
- each obtained photosensitive resin composition was apply
- the vacuum lamination (temperature: 70 ° C., pressure: 0.7 MPa, vacuum time: 20 seconds, Pressing time: 40 seconds) was evaluated after filling the circuit of the film.
- the adhesive strength of the final cured film of the photosensitive resin composition obtained by a series of processes on the copper foil surface of 2CCL product was evaluated by the checkered tape method in accordance with J IS K5400.
- the adhesive strength of the final cured film of the photosensitive resin composition obtained by a series of processes on the copper foil surface was measured by the peel in accordance with JIS K5404.
- the radius of curvature obtained when the final cured film of the photosensitive resin composition obtained by a series of processes on the copper foil surface of 2CCL product was cut into the film of 200 micrometers X 200 micrometers, and stood at right angles.
- the final cured film of the photosensitive resin composition obtained by a series of processes on the copper foil surface was cut into the film of width 5mm, and it isolate
- TMA thermal mechanical analysis
- the film of the embodiment is excellent in filling after lamination, and excellent in heat resistance, moisture resistance, mechanical properties, chemical resistance, and the like, and thus may be used as a cover film of a printed wiring board. This was confirmed.
- the film can be obtained through the development using an aqueous alkali solution to the photosensitive resin composition of the embodiment, as can be seen in the test example, by imidizing at a relatively low temperature (about 180 ° C) to the film It was confirmed that even if obtained can exhibit excellent physical properties of Tables 3 and 4.
- the film of Comparative Example 1 had poor physical properties such as adhesion to a support, high temperature moisture resistance, and mechanical properties, and thus was not suitable for use in applications such as cover films of printed wiring boards.
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Polymerisation Methods In General (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Materials For Photolithography (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010800076299A CN102439521B (zh) | 2009-10-15 | 2010-10-15 | 光敏树脂组合物和包含所述光敏树脂组合物的干膜 |
| JP2011544387A JP5393806B2 (ja) | 2009-10-15 | 2010-10-15 | 感光性樹脂組成物およびこれを含むドライフィルム |
| US13/191,027 US8354219B2 (en) | 2009-10-15 | 2011-07-26 | Photosensitive resin composition and dry film comprising the same |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20090098282 | 2009-10-15 | ||
| KR10-2009-0098282 | 2009-10-15 | ||
| KR1020100044302A KR101443293B1 (ko) | 2009-10-15 | 2010-05-12 | 알칼리 수용액으로 현상 가능한 감광성 수지 조성물 및 이에 의해 제조된 드라이 필름 |
| KR10-2010-0044302 | 2010-05-12 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/191,027 Continuation US8354219B2 (en) | 2009-10-15 | 2011-07-26 | Photosensitive resin composition and dry film comprising the same |
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| Publication Number | Publication Date |
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| WO2011046397A2 true WO2011046397A2 (ko) | 2011-04-21 |
| WO2011046397A3 WO2011046397A3 (ko) | 2011-09-09 |
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| PCT/KR2010/007099 Ceased WO2011046397A2 (ko) | 2009-10-15 | 2010-10-15 | 감광성 수지 조성물 및 이를 포함하는 드라이 필름 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114410193A (zh) * | 2022-01-17 | 2022-04-29 | 深圳市姿彩科技有限公司 | 一种功能化TiO2改性光固化环氧丙烯酸树脂及制备方法 |
| CN114507149A (zh) * | 2020-11-16 | 2022-05-17 | 奇美实业股份有限公司 | 二胺化合物、聚合物、配向剂、配向膜以及液晶显示元件 |
| CN116560188A (zh) * | 2023-04-28 | 2023-08-08 | 波米科技有限公司 | 一种感光性树脂组合物、感光性树脂片及其应用 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004285129A (ja) * | 2003-03-19 | 2004-10-14 | Nippon Zeon Co Ltd | 感光性ポリイミド前駆体、感光性ポリイミド樹脂組成物、及び該樹脂組成物を用いた半導体素子の製造方法 |
| KR100552989B1 (ko) * | 2004-02-12 | 2006-02-17 | 한국화학연구원 | 전유기 박막트랜지스터 절연체용 감광성 폴리아믹산 및이로부터 제조된 폴리이미드 수지 |
| WO2006109514A1 (ja) * | 2005-03-30 | 2006-10-19 | Nippon Steel Chemical Co., Ltd. | 感光性樹脂組成物及びこれを用いた回路基板 |
| KR101056967B1 (ko) * | 2007-11-27 | 2011-08-17 | 주식회사 엘지화학 | 폴리아믹산 에스테르와 이의 제조방법과 상기 폴리아믹산에스테르를 포함하는 감광성 조성물 및 이에 의해 제공된폴리이미드 필름을 적용한 보호막. |
-
2010
- 2010-10-15 WO PCT/KR2010/007099 patent/WO2011046397A2/ko not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507149A (zh) * | 2020-11-16 | 2022-05-17 | 奇美实业股份有限公司 | 二胺化合物、聚合物、配向剂、配向膜以及液晶显示元件 |
| CN114410193A (zh) * | 2022-01-17 | 2022-04-29 | 深圳市姿彩科技有限公司 | 一种功能化TiO2改性光固化环氧丙烯酸树脂及制备方法 |
| CN116560188A (zh) * | 2023-04-28 | 2023-08-08 | 波米科技有限公司 | 一种感光性树脂组合物、感光性树脂片及其应用 |
| CN116560188B (zh) * | 2023-04-28 | 2024-02-13 | 波米科技有限公司 | 一种感光性树脂组合物、感光性树脂片及其应用 |
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| WO2011046397A3 (ko) | 2011-09-09 |
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