WO2017138310A1 - 粘着シート - Google Patents
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- Publication number
- WO2017138310A1 WO2017138310A1 PCT/JP2017/001419 JP2017001419W WO2017138310A1 WO 2017138310 A1 WO2017138310 A1 WO 2017138310A1 JP 2017001419 W JP2017001419 W JP 2017001419W WO 2017138310 A1 WO2017138310 A1 WO 2017138310A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- additive
- sensitive adhesive
- adhesive sheet
- film
- Prior art date
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- 239000000853 adhesive Substances 0.000 title claims abstract description 47
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 47
- 239000000654 additive Substances 0.000 claims abstract description 127
- 230000000996 additive effect Effects 0.000 claims abstract description 127
- 239000002390 adhesive tape Substances 0.000 claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 31
- 239000003112 inhibitor Substances 0.000 claims abstract description 30
- 239000003505 polymerization initiator Substances 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 27
- 238000012719 thermal polymerization Methods 0.000 claims abstract description 26
- 239000012948 isocyanate Substances 0.000 claims abstract description 19
- 239000012790 adhesive layer Substances 0.000 claims abstract description 16
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 16
- 239000002216 antistatic agent Substances 0.000 claims abstract description 11
- 238000004132 cross linking Methods 0.000 claims abstract description 11
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 10
- 239000003999 initiator Substances 0.000 claims abstract description 10
- 239000004902 Softening Agent Substances 0.000 claims abstract description 9
- 239000002313 adhesive film Substances 0.000 claims description 98
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 89
- 239000010410 layer Substances 0.000 claims description 27
- -1 N-nitrosophenylhydroxylamine aluminum salt Chemical compound 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 14
- 229920003067 (meth)acrylic acid ester copolymer Polymers 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 10
- CNHDIAIOKMXOLK-UHFFFAOYSA-N toluquinol Chemical group CC1=CC(O)=CC=C1O CNHDIAIOKMXOLK-UHFFFAOYSA-N 0.000 claims description 10
- SPSPIUSUWPLVKD-UHFFFAOYSA-N 2,3-dibutyl-6-methylphenol Chemical compound CCCCC1=CC=C(C)C(O)=C1CCCC SPSPIUSUWPLVKD-UHFFFAOYSA-N 0.000 claims description 7
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 7
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 claims description 6
- 229920001187 thermosetting polymer Polymers 0.000 claims description 6
- NWVVVBRKAWDGAB-UHFFFAOYSA-N hydroquinone methyl ether Natural products COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 claims description 5
- FRASJONUBLZVQX-UHFFFAOYSA-N 1,4-naphthoquinone Chemical compound C1=CC=C2C(=O)C=CC(=O)C2=C1 FRASJONUBLZVQX-UHFFFAOYSA-N 0.000 claims description 4
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 4
- QEQBMZQFDDDTPN-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy benzenecarboperoxoate Chemical compound CC(C)(C)OOOC(=O)C1=CC=CC=C1 QEQBMZQFDDDTPN-UHFFFAOYSA-N 0.000 claims description 3
- RIPYNJLMMFGZSX-UHFFFAOYSA-N (5-benzoylperoxy-2,5-dimethylhexan-2-yl) benzenecarboperoxoate Chemical compound C=1C=CC=CC=1C(=O)OOC(C)(C)CCC(C)(C)OOC(=O)C1=CC=CC=C1 RIPYNJLMMFGZSX-UHFFFAOYSA-N 0.000 claims description 3
- 229940005561 1,4-benzoquinone Drugs 0.000 claims description 3
- CWJHMZONBMHMEI-UHFFFAOYSA-N 1-tert-butylperoxy-3-propan-2-ylbenzene Chemical compound CC(C)C1=CC=CC(OOC(C)(C)C)=C1 CWJHMZONBMHMEI-UHFFFAOYSA-N 0.000 claims description 3
- HQOVXPHOJANJBR-UHFFFAOYSA-N 2,2-bis(tert-butylperoxy)butane Chemical compound CC(C)(C)OOC(C)(CC)OOC(C)(C)C HQOVXPHOJANJBR-UHFFFAOYSA-N 0.000 claims description 3
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 claims description 3
- JGBAASVQPMTVHO-UHFFFAOYSA-N 2,5-dihydroperoxy-2,5-dimethylhexane Chemical compound OOC(C)(C)CCC(C)(C)OO JGBAASVQPMTVHO-UHFFFAOYSA-N 0.000 claims description 3
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 3
- BIISIZOQPWZPPS-UHFFFAOYSA-N 2-tert-butylperoxypropan-2-ylbenzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC=C1 BIISIZOQPWZPPS-UHFFFAOYSA-N 0.000 claims description 3
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 claims description 3
- BOTGCZBEERTTDQ-UHFFFAOYSA-N 4-Methoxy-1-naphthol Chemical compound C1=CC=C2C(OC)=CC=C(O)C2=C1 BOTGCZBEERTTDQ-UHFFFAOYSA-N 0.000 claims description 3
- XESZUVZBAMCAEJ-UHFFFAOYSA-N 4-tert-butylcatechol Chemical compound CC(C)(C)C1=CC=C(O)C(O)=C1 XESZUVZBAMCAEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 3
- BGNXCDMCOKJUMV-UHFFFAOYSA-N Tert-Butylhydroquinone Chemical compound CC(C)(C)C1=CC(O)=CC=C1O BGNXCDMCOKJUMV-UHFFFAOYSA-N 0.000 claims description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 3
- IXPUJMULXNNEHS-UHFFFAOYSA-L copper;n,n-dibutylcarbamodithioate Chemical compound [Cu+2].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC IXPUJMULXNNEHS-UHFFFAOYSA-L 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- JIYXDFNAPHIAFH-UHFFFAOYSA-N tert-butyl 3-tert-butylperoxycarbonylbenzoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC(C(=O)OC(C)(C)C)=C1 JIYXDFNAPHIAFH-UHFFFAOYSA-N 0.000 claims description 3
- KBAOLOSFEJJQPL-UHFFFAOYSA-N trimethyl(triphenylsilylperoxy)silane Chemical compound C=1C=CC=CC=1[Si](C=1C=CC=CC=1)(OO[Si](C)(C)C)C1=CC=CC=C1 KBAOLOSFEJJQPL-UHFFFAOYSA-N 0.000 claims description 3
- JPOUDZAPLMMUES-UHFFFAOYSA-N 2,2-bis(tert-butylperoxy)octane Chemical compound CCCCCCC(C)(OOC(C)(C)C)OOC(C)(C)C JPOUDZAPLMMUES-UHFFFAOYSA-N 0.000 claims description 2
- ODBCKCWTWALFKM-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhex-3-yne Chemical compound CC(C)(C)OOC(C)(C)C#CC(C)(C)OOC(C)(C)C ODBCKCWTWALFKM-UHFFFAOYSA-N 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 2
- RKMGAJGJIURJSJ-UHFFFAOYSA-N 2,2,6,6-Tetramethylpiperidine Substances CC1(C)CCCC(C)(C)N1 RKMGAJGJIURJSJ-UHFFFAOYSA-N 0.000 claims 1
- 240000001987 Pyrus communis Species 0.000 claims 1
- 229920001577 copolymer Polymers 0.000 abstract description 7
- 238000013508 migration Methods 0.000 abstract description 2
- 230000005012 migration Effects 0.000 abstract description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 26
- 239000000178 monomer Substances 0.000 description 24
- 239000000203 mixture Substances 0.000 description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 125000000524 functional group Chemical group 0.000 description 8
- 239000005056 polyisocyanate Substances 0.000 description 8
- 229920001228 polyisocyanate Polymers 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 5
- 150000001805 chlorine compounds Chemical group 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000002723 alicyclic group Chemical group 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 229920000554 ionomer Polymers 0.000 description 3
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- 239000005011 phenolic resin Substances 0.000 description 3
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- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- VGHSXKTVMPXHNG-UHFFFAOYSA-N 1,3-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC(N=C=O)=C1 VGHSXKTVMPXHNG-UHFFFAOYSA-N 0.000 description 2
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 description 2
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
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- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- NJWGQARXZDRHCD-UHFFFAOYSA-N 2-methylanthraquinone Chemical compound C1=CC=C2C(=O)C3=CC(C)=CC=C3C(=O)C2=C1 NJWGQARXZDRHCD-UHFFFAOYSA-N 0.000 description 2
- BUZICZZQJDLXJN-UHFFFAOYSA-N 3-azaniumyl-4-hydroxybutanoate Chemical compound OCC(N)CC(O)=O BUZICZZQJDLXJN-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
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- 239000005977 Ethylene Substances 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- 239000004305 biphenyl Substances 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 description 2
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- 238000009472 formulation Methods 0.000 description 2
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
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- 150000003505 terpenes Chemical class 0.000 description 2
- 235000007586 terpenes Nutrition 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
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- HVJKLCOHVAENRQ-UHFFFAOYSA-N 1,2,2,6-tetramethylpiperidine Chemical compound CC1CCCC(C)(C)N1C HVJKLCOHVAENRQ-UHFFFAOYSA-N 0.000 description 1
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- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
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- KMNCBSZOIQAUFX-UHFFFAOYSA-N 2-ethoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OCC)C(=O)C1=CC=CC=C1 KMNCBSZOIQAUFX-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J201/00—Adhesives based on unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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- H—ELECTRICITY
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/185—Joining of semiconductor bodies for junction formation
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
Definitions
- the present invention relates to an adhesive sheet.
- an electronic component As a method of manufacturing an electronic component, after forming a plurality of circuit patterns on a wafer or an insulating substrate to form an electronic component assembly, the electronic component assembly is processed into a chip, the chip is picked up, and the bottom surface of the chip is A method is known in which an adhesive is applied, a chip is fixed to a lead frame or the like with an adhesive, and the chip is sealed with a resin or the like to form an electronic component.
- the circuit pattern of the electronic component assembly is attached to an adhesive tape, the back surface of the circuit pattern is thinly polished (back grind), the adhesive tape is peeled off, and then the circuit
- a method is known in which an adhesive tape is bonded to the pattern surface, and further fixed to a ring frame, then cut and separated (diced) into individual chips, and the chips are stacked and fixed using an adhesive.
- a method using a multilayer pressure-sensitive adhesive sheet in which an adhesive film and a pressure-sensitive adhesive tape are laminated has been proposed (see Patent Documents 1 and 2). *
- JP 2006-049509 A Japanese Patent Laid-Open No. 02-248064
- the step of applying the adhesive after back grinding or dicing can be omitted.
- the integrated sheet of the adhesive film and the pressure-sensitive adhesive tape is excellent in controlling the thickness of the adhesive portion and suppressing the protrusion of the adhesive as compared with a method using an adhesive.
- An integrated sheet of an adhesive film and an adhesive tape is used for manufacturing electronic components such as a chip size package, a stack package, a system-in-package, and a TSV (Through Silicon Via).
- the additive in the adhesive film may move to the adhesive tape, so that sufficient characteristics cannot be obtained.
- the adhesive force between the adhesive film and the adhesive tape is low, the adhesiveness between the adhesive film and the adhesive film is poor, and it peels off during the operation.
- This invention is made
- the additive in adhesive film X is the adhesive layer Y. It aims at providing the adhesive sheet which can suppress the characteristic change of the adhesive film X by transfer.
- An adhesive sheet in which an adhesive film X, an adhesive layer Y, and a base film Z are arranged in the order of X, Y, Z,
- the adhesive film X is a functional component selected from a base resin, a photopolymerization initiator, a thermal polymerization initiator, a polymerization inhibitor, an antistatic agent, a crosslinking accelerator, an antiaging agent, and a softening agent, and has a molecular weight.
- the pressure-sensitive adhesive layer Y comprises 100 parts by weight of a (meth) acrylic acid ester copolymer (B), 0.5 to 10 parts by weight of a polyfunctional isocyanate curing agent (C), and the first addition in the adhesive film X Containing the second additive (D) which is the same functional component as the agent (A) and has a molecular weight of 500 or less,
- the ratio of the concentration of the second additive (D) in the pressure-sensitive adhesive layer Y to the concentration of the first additive (A) in the adhesive film X is 0.02 to 4.
- the second additive (D) includes at least one functional component selected from a thermal polymerization initiator and a polymerization inhibitor, a photopolymerization initiator, an antistatic agent, a crosslinking accelerator, an antiaging agent, and A pressure-sensitive adhesive sheet containing at least one functional component according to any one of (1) to (5), selected from softeners.
- the polymerization inhibitor is methylhydroquinone, t-butylhydroquinone, 4-methoxynaphthol, 1,4-benzoquinone, methoquinone, dibutylhydroxytoluene, N-nitrosophenylhydroxylamine aluminum salt, 1,4-naphthoquinone, 2
- the pressure-sensitive adhesive sheet according to (5) or (6) which is at least one selected from 1,2,6,6-tetramethylpiperidine 1-oxyl, 4-tertiary butylcatechol and copper dibutyldithiocarbamate.
- the thermal polymerization initiator is benzoyl peroxide, cumene hydroperoxide, 2,5-dimethylhexane-2,5-dihydroperoxide, 2,5-dimethyl-2,5-di (t-butyl peroxide).
- (12) (a) a step of attaching and fixing a silicon wafer to the adhesive film X side surface of the pressure-sensitive adhesive sheet according to any one of (1) to (11), and cutting along the outer periphery of the silicon wafer; , (B) bonding the dicing adhesive tape to the other surface of the silicon wafer, and further fixing the dicing adhesive tape to the ring frame; (C) From the pressure-sensitive adhesive sheet, a step of peeling the pressure-sensitive adhesive tape composed of the pressure-sensitive adhesive layer Y and the base film Z; (D) a step of dicing the silicon wafer with the adhesive film X; (E) a step of peeling off the chip to which the adhesive film X is attached after radially expanding the dicing adhesive tape to widen the chip interval; (F) a step of laminating a plurality of chips and bonding the plurality of chips to each other by heating; A method for manufacturing a semiconductor product.
- the monomer unit means a structural unit derived from a monomer. Unless otherwise indicated, parts and% in this specification are based on mass.
- the (meth) acryloyl group is a general term for an acryloyl group and a methacryloyl group.
- a compound containing (meth) such as (meth) acrylic acid is a general term for a compound having “meta” in the name and a compound not having “meta”.
- the adhesive tape is a laminate of the adhesive layer Y and the substrate Z.
- the present invention is an adhesive sheet in which an adhesive film X, an adhesive layer Y, and a base film Z are arranged in the order of X, Y, and Z.
- the adhesive film X includes a base resin, a photopolymerization initiator, 0.05% of the first additive (A) that is a functional component selected from a thermal polymerization initiator, a polymerization inhibitor, an antistatic agent, a crosslinking accelerator, an antiaging agent, and a softening agent and has a molecular weight of 500 or less.
- the pressure-sensitive adhesive layer Y contains 100 parts by mass of (meth) acrylic acid ester copolymer (B), 0.5-10 parts by mass of polyfunctional isocyanate curing agent (C), and the adhesive.
- the second additive (D) is the same functional component as the first additive (A) in the film X and has a molecular weight of 500 or less, and the second additive (D) is the pressure-sensitive adhesive layer Y100.
- the pressure-sensitive adhesive sheet is 0.1 to 20% by mass in mass% A.
- the adhesive film X of the present invention contains a base resin and the first additive (A).
- an adhesive composition solution containing the base resin and the first additive (A) is prepared, and the adhesive composition solution is applied on the base separator so as to have a predetermined thickness. After the formation, the coating film can be dried.
- the type of the base resin is not particularly limited.
- the first additive (A) is a functional component selected from a photopolymerization initiator, a thermal polymerization initiator, a polymerization inhibitor, an antistatic agent, a crosslinking accelerator, an antiaging agent, and a softening agent, and has a molecular weight of 500. It is as follows.
- the first additive (A) is added in order to impart desired properties to the adhesive film X.
- the concentration of the first additive (A) in the adhesive film X is 0.05 to 20% by mass, preferably 0.5 to 15% by mass, more preferably 1 to 10 and even more preferably. 3 to 7% by mass.
- the molecular weight of the first additive (A) is set to 500 or less because when the molecular weight exceeds 500, the first additive (A) is not easily transferred to the pressure-sensitive adhesive layer Y. This is because the concentration change of the functional component of the first additive (A) is less likely to occur and the necessity of applying the present invention is low.
- the minimum of the molecular weight of a 1st additive (A) is not specifically limited, For example, it is 100.
- the first additive (A) may contain one functional component of a photopolymerization initiator, a thermal polymerization initiator, a polymerization inhibitor, an antistatic agent, a crosslinking accelerator, an antiaging agent, and a softening agent, A plurality of functional components may be included.
- the “functional component” of the additive is an expression focusing on the function, and components having the same function even if they are different substances are the same functional component.
- the first additive (A) includes a thermal polymerization initiator and a polymerization inhibitor
- the first additive (A) contains two functional components.
- the first additive (A) contains a polymerization inhibitor of two substances (for example, methylhydroquinone and dibutylhydroxytoluene), the first additive (A) contains one functional component.
- the concentration of each functional component is preferably in the above range.
- the adhesive film X is preferably a thermosetting film.
- the adhesive film X suitably contains at least one of a thermal polymerization initiator and a polymerization inhibitor.
- the adhesive film X contains a thermal polymerization initiator, the temperature at which the adhesive film X is thermally cured decreases, and when the adhesive film X contains a polymerization inhibitor, the temperature at which the adhesive film X is thermally cured increases. .
- the thermosetting property of the adhesive film X is optimized by adding appropriate amounts of a polymerization initiator and a polymerization inhibitor to the adhesive film X.
- the adhesive film X is a thermosetting film. In some cases, it is particularly significant to suppress the concentration change of at least one of the thermal polymerization initiator and the polymerization inhibitor.
- the photopolymerization initiator is not particularly limited.
- benzoin benzoin methyl ether, benzoin ethyl ether, benzoin propyl ether, acetophenone, 2,2-dimethoxy-2-acetophenone, 2,2-diethoxy-2-acetophenone, 1,1 -Dichloroacetophenone, 2-methylanthraquinone, 2-ethylanthraquinone, 2-tert-butylanthraquinone, 1-chloroanthraquinone, 2,4-dimethylthioxanthone, 2,4-diisopropylthioxanthone, 2-chlorothioxanthone, 2,4-diisopropyl Thioxanthone, acetophenone dimethyl ketal, benzyl dimethyl ketal, benzyl diphenyl sulfide, tetramethylthiuram monosulfide, azobisisobutyroni
- the thermal polymerization initiator is not particularly limited.
- the polymerization inhibitor is not particularly limited.
- the antistatic agent is not particularly limited.
- dimethylaminoethyl (meth) acrylate quaternary chloride diethylaminoethyl (meth) acrylate quaternary chloride, methylethylaminoethyl (meth) acrylate quaternary chloride, p-dimethylamino
- examples thereof include styrene quaternary chloride and p-diethylaminostyrene quaternary chloride.
- the crosslinking accelerator is not particularly limited.
- tramethylthiuram disulfide tramethylthiuram monosulfide, zinc dimethyldithiocarbamate, 2-mercaptobenzothiazole, dibenzothiazyl disulfide, N-cyclohexyl-2-benzothiazolylsulfenamide, And ammonium peroxodisulfate.
- the anti-aging agent is not particularly limited.
- the softening agent is not particularly limited, and examples thereof include bis (2-ethylhexyl) phthalate, diisononyl phthalate, diisodecyl phthalate, dibutyl phthalate, dioctyl adipate, diisononyl adipate, tricresyl phosphate, and tributyl acetylcitrate. It is done.
- the pressure-sensitive adhesive layer Y of the present invention is mainly composed of a (meth) acrylic acid ester copolymer. Specifically, the (meth) acrylic acid ester copolymer (B) 100 parts by mass, It contains 0.5 to 10 parts by mass of the functional isocyanate curing agent (C) and 0.1 to 20% by mass of the second additive (D).
- ((Meth) acrylic acid ester copolymer (B)) examples include monomers having a carboxyl group such as acrylic acid and methacrylic acid, polymers obtained by polymerizing these ester monomers, and unsaturated monomers copolymerizable with these monomers. There is a copolymer obtained by copolymerizing a monomer (for example, vinyl acetate, styrene, acrylonitrile).
- the adhesive which comprises an adhesive layer can adjust adhesive force more precisely by containing a hardening
- At least one of the acrylic monomers constituting the (meth) acrylic acid ester copolymer (B) includes a functional group-containing monomer.
- This functional group-containing monomer is preferably polymerized by blending 0% by mass to 10% by mass in the (meth) acrylic acid ester copolymer (B). If the blending ratio of the functional group-containing monomer is 0.01% by mass or more, the adhesive strength to the adherend is sufficiently strong and the generation around the water tends to be suppressed. If the blending ratio is 10 mass% or less, the adhesive force to the adherend will not be too high, so that it is possible to suppress the occurrence of adhesive residue.
- acrylic monomer examples include butyl (meth) acrylate, 2-butyl (meth) acrylate, t-butyl (meth) acrylate, pentyl (meth) acrylate, octyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, Nonyl (meth) acrylate, decyl (meth) acrylate, lauryl (meth) acrylate, methyl (meth) acrylate, ethyl (meth) acrylate, isopropyl (meth) acrylate, tridecyl (meth) acrylate, myristyl (meth) acrylate, cetyl ( Examples include (meth) acrylic monomers such as (meth) acrylate, stearyl (meth) acrylate, cyclohexyl (meth) acrylate, and benzyl (meth) acrylate.
- acrylic monomer those having a monomer containing a functional group at least in part are particularly preferable.
- the monomer containing this functional group one of functional groups such as hydroxyl group, carboxyl group, epoxy group, amide group, amino group, methylol group, sulfonic acid group, sulfamic acid group or (sub) phosphate group is used.
- Monomers having more than one species can be mentioned.
- vinyl compounds having these functional groups are particularly preferable, and vinyl compounds having hydroxyl groups are particularly preferable.
- the acrylate mentioned later is included in the vinyl compound here.
- Examples of the functional group-containing monomer having a hydroxyl group include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, and 2-hydroxybutyl (meth) acrylate.
- Examples of the monomer having a carboxyl group include (meth) acrylic acid, crotonic acid, maleic acid, maleic anhydride, itaconic acid, fumaric acid, acrylamide N-glycolic acid, and cinnamic acid.
- Examples of the monomer having an epoxy group include allyl glycidyl ether and (meth) acrylic acid glycidyl ether.
- Examples of the monomer having an amide group include (meth) acrylamide.
- Examples of the monomer having an amino group include N, N-dimethylaminoethyl (meth) acrylate.
- Examples of the monomer having a methylol group include N-methylol acrylamide.
- Vinyl monomers other than those described above may be used for the acrylic polymer.
- the polyfunctional isocyanate curing agent (C) is not particularly limited except that it has two or more isocyanate groups, and examples thereof include aromatic polyisocyanates, aliphatic polyisocyanates, and alicyclic polyisocyanates.
- the aromatic polyisocyanate is not particularly limited, and for example, 1,3-phenylene diisocyanate, 4,4′-diphenyl diisocyanate, 1,4-phenylene diisocyanate, 4,4′-diphenylmethane diisocyanate, 2,4-tolylene diisocyanate, 2, , 6-tolylene diisocyanate, 4,4′-toluidine diisocyanate, 2,4,6-triisocyanate toluene, 1,3,5-triisocyanate benzene, dianisidine diisocyanate, 4,4′-diphenyl ether diisocyanate, 4,4 ', 4 "-triphenylmethane triisocyanate, ⁇ , ⁇ '-diisocyanate-1,3-dimethylbenzene, ⁇ , ⁇ '-diisocyanate-1,4-dimethylbenzene, ⁇ , ⁇ '-diisocyanate-1,4- Diethy
- the aliphatic polyisocyanate is not particularly limited.
- diisocyanate and 2,4,4-trimethylhexamethylene diisocyanate examples thereof include diisocyanate and 2,4,4-trimethylhexamethylene diisocyanate.
- the alicyclic polyisocyanate is not particularly limited.
- aromatic polyisocyanates that are readily available are 1,3-phenylene diisocyanate, 4,4'-diphenyl diisocyanate, 1,4-phenylene diisocyanate, 4,4'-diphenylmethane diisocyanate, 2,4-triisocyanate Range isocyanate, 2,6-tolylene diisocyanate, and 4,4′-toluidine diisocyanate are preferably used.
- isocyanate compounds may be dimers or trimers, or may be adducts obtained by reacting isocyanate compounds with polyol compounds.
- the blending ratio of the polyfunctional isocyanate curing agent (C) is 0.5 to 10 parts by weight, preferably 2 to 8 parts by weight, based on 100 parts by weight of the (meth) acrylic ester copolymer (B). 6 parts by mass is more preferable.
- curing agents (C) adhesive force is too strong and an adhesive tape and the adhesive film X may be unable to peel. If the polyfunctional isocyanate curing agent (C) is excessive, the adhesive strength is reduced, and the adhesive film X may be peeled off during the operation.
- a tackifying resin is not particularly limited.
- the tackifying resin is not particularly limited.
- the blending amount of the tackifying resin is not particularly limited, and is preferably 200 parts by mass or less, and preferably 30 parts by mass or less with respect to 100 parts by mass of the (meth) acrylic acid ester polymer (A).
- the second additive (D) is the same functional component as the first additive (A) in the adhesive film X. Therefore, for example, when the first additive (A) is a thermal polymerization initiator, the second additive (D) is also a thermal polymerization initiator, and the first additive (A) is a polymerization inhibitor. The second additive (D) is also a polymerization inhibitor. The second additive (D) is preferably selected from a polymerization inhibitor and a thermal polymerization initiator.
- the second additive (D) includes at least one functional component selected from a thermal polymerization initiator and a polymerization inhibitor, a photopolymerization initiator, an antistatic agent, a crosslinking accelerator, an antiaging agent, and a softening agent. It is preferable to contain at least one functional component selected from agents.
- the second additive (D) may contain a functional component not included in the first additive (A). For example, when the first additive (A) is only a thermal polymerization initiator, the second additive (D) may contain a thermal polymerization initiator and a polymerization inhibitor. On the other hand, the first additive (A) may contain a functional component not included in the second additive (D).
- the second additive (D) may contain only the thermal polymerization initiator.
- the first additive (A) and the second additive (D) each contain a plurality of functional components, it is preferable that all the functional components are common.
- the concentration of the second additive (D) in the pressure-sensitive adhesive layer Y is 0.1 to 20% by mass, preferably 0.5 to 17% by mass, more preferably 1 to 10%, and further preferably. Is 3-7% by mass.
- the 1st additive (A) in the adhesive film X transfers to the adhesive layer Y
- the 1st additive (A) in the adhesive film X It is added for the purpose of suppressing the decrease in concentration.
- the second additive (D) is contained in the pressure-sensitive adhesive layer Y, the first additive (A) is transferred to the pressure-sensitive adhesive layer Y and the second additive (D) is transferred to the adhesive film X.
- the concentration change of the functional component of the first additive (A) in the adhesive film X is suppressed. If the concentration of the second additive (D) is too low, there is too little transfer of the second additive (D) to the adhesive film X, and the concentration of the functional component of the first additive (A) in the adhesive film X It is difficult to obtain the effect of suppressing changes.
- the concentration of the second additive (D) is too high, the transfer of the second additive (D) to the adhesive film X becomes excessive, and the function of the first additive (A) in the adhesive film X is increased. Concentration of the component becomes high.
- the concentration of each functional component is in the above range.
- the concentration of the first additive (A) in the adhesive film X is close to the concentration of the second additive (D) in the pressure-sensitive adhesive layer Y.
- the concentration ratio (second additive (D) / first additive (A)) is, for example, 0.02 to 4, preferably 0.1 to 3.4, and more preferably 0.8. 5 to 1.5.
- the concentration ratio of each functional component is preferably within the above range.
- the molecular weight of the second additive (D) is set to 500 or less because when the molecular weight exceeds 500, the second additive (D) does not easily migrate to the adhesive film X. It is because the effect which suppresses the density
- the minimum of the molecular weight of a 2nd additive (D) is not specifically limited, For example, it is 100.
- the second additive (D) may be the same functional component as the first additive (A), and need not be the same substance. Therefore, for example, when the first additive (A) is a polymerization inhibitor composed of a first substance (eg, methylhydroquinone), the second additive (D) is prohibited from polymerization composed of a second substance (dibutylhydroxytoluene).
- An agent may be used.
- the concentration of the first substance in the adhesive film X decreases as the first substance moves from the adhesive film X to the pressure-sensitive adhesive layer Y, but the second substance moves from the pressure-sensitive adhesive layer Y to the adhesive film X. Therefore, a change in the concentration of the polymerization inhibitor in the adhesive film X is suppressed.
- the concentration change of the functional component of the first additive (A) in the adhesive film X is more effective. Therefore, it is preferable that the first additive (A) and the second additive (D) are the same substance.
- the first additive (A) and the second additive (D) each include a plurality of substances, it is preferable that all the substances are common.
- the thickness of the pressure-sensitive adhesive layer Y is preferably 0.1 to 4 times that of the adhesive film X, and more preferably 0.5 to 3 times. If the adhesive layer Y is thinner or thicker than the adhesive film X, the concentration change of the functional component of the first additive (A) in the adhesive film X may be insufficiently suppressed. is there. ⁇ Base film Z>
- the base film Z various synthetic resin sheets can be used.
- the material of the base film Z is not particularly limited, but polyvinyl chloride, polyethylene terephthalate, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, polyethylene, polypropylene, ethylene-acrylic acid copolymer, and ionomer resin Etc.
- a mixture of these resins, a copolymer, a multilayer film, and the like can be used for the base film.
- the material of the base film Z is preferably an ionomer resin.
- ionomer resins an ionomer resin obtained by crosslinking a copolymer having an ethylene unit, a (meth) methacrylic acid unit, and a (meth) acrylic acid alkyl ester unit with a metal ion such as Na +, K +, or Zn2 + is preferably used. .
- the molding method of the base film Z is not particularly limited, and examples thereof include calendar, T-die extrusion, inflation, and casting.
- the thickness of the base film is preferably 30 to 300 ⁇ m, more preferably 60 to 200 ⁇ m.
- an antistatic agent may be applied to one side or both sides of the base film Z to carry out an antistatic treatment.
- Adhesive film X is affixed on the adhesive layer Y side surface of the adhesive tape formed by laminating adhesive layer Y and substrate film Z to obtain an adhesive sheet.
- the adhesive force between the adhesive film X and the adhesive tape is preferably 0.05 to 1.0 N / 20 mm.
- the adhesive force between the adhesive film X and the adhesive tape is 1.0 N / 20 mm or less, the occurrence of peeling failure is suppressed, and when the adhesive force is 0.05 N / 20 mm or more, the adhesive film X can be appropriately held. Because there is an advantage.
- the pressure-sensitive adhesive layer Y comprises (meth) acrylic acid ester copolymer (B) 100 parts by mass and polyfunctional isocyanate curing agent (C) 0.5 to 10 parts by mass.
- the main component is a (meth) acrylic acid ester copolymer to be contained.
- the manufacturing method of the electronic component using the adhesive sheet of this embodiment is not specifically limited, For example, the following procedure is mentioned.
- An adhesive tape having an adhesive layer Y formed on a base film Z is prepared.
- the adhesive film X is bonded to the surface of the pressure-sensitive adhesive tape on the pressure-sensitive adhesive layer Y side to prepare a pressure-sensitive adhesive sheet.
- a silicon wafer is attached and fixed to the surface of the adhesive sheet on the adhesive film X side, and cut along the outer periphery of the wafer.
- a dicing adhesive tape is bonded to the other surface of the silicon wafer, and the dicing adhesive tape is fixed to the ring frame.
- the adhesive tape is peeled from the adhesive sheet.
- the adhesive film X remains on the silicon wafer.
- the wafer with the adhesive film X is diced. At this time, the adhesive film X is also diced.
- the chip is peeled off. The diced adhesive film X is attached to each peeled chip.
- a plurality of chips are stacked and heated to bond the plurality of chips to each other.
- Example 1 The adhesive film X, the pressure-sensitive adhesive tape, and the pressure-sensitive adhesive sheet according to Example 1 were prepared according to the following formulation.
- Adhesive film X A polypropylene glycol type epoxy resin (manufactured by Toto Kasei Co., Ltd., model: PG208GS) and a bisphenol A type epoxy resin (manufactured by Japan Epoxy Resin, model: EP828) are mixed in a ratio (mass ratio) of 35:65, and the epoxy resin 100 mass
- An adhesive composition solution containing 50 parts by mass of a phenol novolac-based curing agent (Maywa Kasei Co., Ltd., model: H-1) and the first additive (A) is prepared for each part, and the adhesive composition solution Was applied on a base separator to a predetermined thickness to form a coating film, and then the coating film was dried to produce an adhesive film X.
- the thickness was 30 ⁇ m.
- the 1st additive (A) was added to the adhesive composition solution so that the density
- the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape is composed of 100 parts by weight of the (meth) acrylic acid ester copolymer (B), 5 parts by weight of the polyfunctional isocyanate curing agent (C), and the second additive (D).
- a pressure-sensitive adhesive solution containing 5% by mass in the pressure-sensitive adhesive was applied onto a PET separator film, the thickness after drying was 30 ⁇ m, and the film was laminated on a substrate film of 100 ⁇ m to obtain a pressure-sensitive adhesive tape.
- Base film Z Mainly composed of Zn salt of ethylene-methacrylic acid-methacrylic acid alkyl ester copolymer, MFR value 1.5 g / 10 min (JIS K7210, 210 ° C.), melting point 96 ° C., Mitsui DuPont Polychemical Company-made, commercial product.
- Adhesive sheet The adhesive film X was laminated on the surface of the pressure-sensitive adhesive tape on the pressure-sensitive adhesive layer Y side to obtain a pressure-sensitive adhesive sheet.
- Examples 2 to 17 and Comparative Examples 1 to 6 Except for changing the type and concentration of the first additive (A), the blending amount of the polyfunctional isocyanate curing agent (C), and the type and concentration of the second additive (D) as shown in Tables 1 and 2. In the same manner as in Example 1, pressure-sensitive adhesive sheets of Examples 2 to 17 and Comparative Examples 1 to 6 were obtained.
- Measurement method (1) Collect the adhesive tape in a 20 ml vial, replace with nitrogen gas, and enclose it. (2) Heat at 175 ° C. for 10 minutes, and measure the gas phase part by GC-MS. (3) The additive amount before and after bonding of the adhesive film X is compared, and the change in concentration is calculated.
- the pressure-sensitive adhesive sheet was bonded onto a silicon wafer and pressure-bonded by one reciprocation of a 2 kg roller, and the pressure-sensitive adhesive force at the interface between the pressure-sensitive adhesive tape and the adhesive film X was measured by a tensile tester by the following method. The peelability was evaluated according to the following criteria.
- Adhesive strength is 0.2 N / 20 mm or more and less than 0.7 N / 20 mm
- Adhesive strength is 0.05 N / 20 mm or more and less than 0.2 N / 20 mm, or 0.7 N / 20 mm or more and less than 1.0 N / 20 mm x: Adhesive strength is less than 0.05N / 20mm, or 1.0N / 20mm or more
- Tables 1 and 2 summarize the formulations and evaluation results of Examples 1 to 17 and Comparative Examples 1 to 6.
- the pressure-sensitive adhesive sheet has a small change in the concentration of the additive in the pressure-sensitive adhesive tape, so that the change in the concentration of the additive in the adhesive film X is small and has excellent peelability. Therefore, the pressure-sensitive adhesive sheet is suitably used for a method for manufacturing an electronic component in which a plurality of chips are stacked and fixed.
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Abstract
Description
(1) 接着フィルムXと、粘着剤層Yと、基材フィルムZをX、Y、Zの順に配置した粘着シートであって、
前記接着フィルムXが、基体樹脂と、光重合開始剤、熱重合開始剤、重合禁止剤、帯電防止剤、架橋促進剤、老化防止剤、及び軟化剤から選択される機能成分であり且つ分子量が500以下である第1添加剤(A)を0.05~20質量%含有し、
前記粘着剤層Yが、(メタ)アクリル酸エステル共重合体(B)100質量部と、多官能イソシアネート硬化剤(C)0.5~10質量部と、前記接着フィルムX中の第1添加剤(A)と同一の機能成分であり且つ分子量が500以下である第2添加剤(D)を含有し、
第2添加剤(D)は、前記粘着剤層Y100質量%中に0.1~20質量%であることを特徴とする粘着シート。
(2)前記接着フィルムX中での第1添加剤(A)の濃度に対する、前記粘着剤層Y中での第2添加剤(D)の濃度の比は、0.02~4である、(1)に記載の粘着シート。
(3)前記濃度の比は、0.1~3.4である、(1)に記載の粘着シート。
(4)前記濃度の比は、0.5~1.5である、(1)に記載の粘着シート。
(5) 第2添加剤(D)は、重合禁止剤と熱重合開始剤から選択される、(1)~(4)のいずれか1項に記載の粘着シート。
(6) 第2添加剤(D)は、熱重合開始剤と重合禁止剤から選択される少なくとも1種の機能成分と、光重合開始剤、帯電防止剤、架橋促進剤、老化防止剤、及び軟化剤から選択される、(1)~(5)のいずれか1項に少なくとも1種の機能成分を含有する粘着シート。
(7) 前記重合禁止剤がメチルヒドロキノン、t-ブチルヒドロキノン、4-メトキシナフトール、1,4-ベンゾキノン、メトキノン、ジブチルヒドロキシトルエン、N-ニトロソフェニルヒドロシキルアミンアルミニウム塩、1,4-ナフトキノン、2,2,6,6-テトラメチルピペリジン1-オキシル、4-ターシャリー・ブチルカテコール、ジブチルジチオカルバミン酸銅から選択される1種以上である、(5)又は(6)に記載の粘着シート。
(8)前記熱重合開始剤がベンゾイルパーオキサイド、クメンハイドロパーオキサイド、2,5-ジメチルヘキサン-2,5-ジハイドロパーオキサイド、2,5-ジメチル-2,5-ジ(t-ブチルパーオキシ)ヘキシン-3、ジ-t-ブチルパーオキサイド、t-ブチルクミルパーオキサイド、α,α'-ビス(t-ブチルパーオキシ-m-イソプロピル)ベンゼン、2,5-ジメチル-2,5-ジ(t-ブチルパーオキシ)ヘキサン、ジクミルパーオキサイド、ジ-t-ブチルパーオキシイソフタレート、t-ブチルパーオキシベンゾエート、2,2-ビス(t-ブチルパーオキシ)ブタン、2,2-ビス(t-ブチルパーオキシ)オクタン、2,5-ジメチル-2,5-ジ(ベンゾイルパーオキシ)ヘキサン、ジ(トリメチルシリル)パーオキサイド、トリメチルシリルトリフェニルシリルパーオキサイドから選択される1種以上である、(5)~(7)のいずれか1項に記載の粘着シート。
(9) 第2添加剤(D)は、第1添加剤(A)と同一物質である、(1)~(8)のいずれか1項に記載の粘着シート。
(10) 前記接着フィルムXは、熱硬化性フィルムである、(1)~(9)のいずれか1項に記載の粘着シート。
(11)前記粘着剤層Yの厚さは、前記接着フィルムXに対して0.1~4倍の厚さである、(1)~(10)のいずれか1項に記載の粘着シート。
(12)(a)(1)~(11)のいずれか1項に記載の粘着シートの接着フィルムX側の面にシリコンウエハを貼付けて固定し、シリコンウエハ外周部に沿って切断する工程と、
(b)前記シリコンウエハの他方の面にダイシング用粘着テープを貼り合わせ、さらにダイシング用粘着テープをリングフレームに固定する工程と、
(c)前記粘着シートから、粘着剤層Yと基材フィルムZで構成される粘着テープを剥離する工程と、
(d)接着フィルムX付きシリコンウエハをダイシングする工程と、
(e)前記ダイシング用粘着テープを放射状に拡大してチップ間隔を広げた後、接着フィルムXが付着しているチップを剥離する工程と、
(f)複数のチップを積層し、加熱することで複数のチップを互いに接着させる工程と、
からなる半導体製品の製造方法。
本発明の接着フィルムXは、基体樹脂と、第1添加剤(A)を含有する。接着フィルムXは、基体樹脂と第1添加剤(A)を含有する接着剤組成物溶液を作製し、接着剤組成物溶液を基材セパレータ上に所定厚みとなる様に塗布して塗布膜を形成した後、該塗布膜を乾燥させることで製造できる。
基体樹脂の種類は、特に限定されず、例えば、アクリル酸エステル共重合体、ポリアミド、ポリエチレン、ポリスルホン、エポキシ樹脂、ポリイミド、ポリアミド酸、シリコーン樹脂、フェノール樹脂、ゴム、フッ素ゴム及びフッ素樹脂の単体又はこれらの混合物である。
第1添加剤(A)は、光重合開始剤、熱重合開始剤、重合禁止剤、帯電防止剤、架橋促進剤、老化防止剤、及び軟化剤から選択される機能成分であり且つ分子量が500以下である。第1添加剤(A)は、接着フィルムXに所望の特性を付与するために添加されるものである。接着フィルムX中の第1添加剤(A)の濃度は、0.05~20質量%であり、好ましくは0.5~15質量%であり、さらに好ましくは1~10であり、さらに好ましくは3~7質量%である。接着フィルムX中の第1添加剤(A)の量が少なすぎると所望の特性が得られない場合があり、多すぎると接着性が低下する等の問題が生じる場合がある。また、第1添加剤(A)の分子量を500以下としているのは、この分子量が500を超える場合には、第1添加剤(A)が粘着剤層Yに移行しにくいので、接着フィルムX内での第1添加剤(A)機能成分の濃度変化が起こりにくく、本発明を適用する必要性が低いからである。第1添加剤(A)の分子量の下限は特に限定されないが、例えば、100である。第1添加剤(A)は、光重合開始剤、熱重合開始剤、重合禁止剤、帯電防止剤、架橋促進剤、老化防止剤、及び軟化剤のうちの1つ機能成分を含んでもよく、複数の機能成分を含んでもよい。本願明細書において、添加剤の「機能成分」とは、機能に着目した表現であり、互いに異なる物質であっても同一の機能を有する成分は、同一の機能成分である。例えば、第1添加剤(A)が熱重合開始剤と重合禁止剤を含む場合は、第1添加剤(A)は2つ機能成分を含有する。一方、第1添加剤(A)が2つの物質(例えば、メチルヒドロキノンとジブチルヒドロキシトルエン)の重合禁止剤を含む場合、第1添加剤(A)は、1つの機能成分を含有する。第1添加剤(A)が複数の機能成分を含む場合、各機能成分の濃度が上記範囲であることが好ましい。
本発明の粘着剤層Yは、(メタ)アクリル酸エステル共重合体を主成分とするものであり、具体的には、(メタ)アクリル酸エステル共重合体(B)100質量部と、多官能イソシアネート硬化剤(C)0.5~10質量部と、第2添加剤(D)を0.1~20質量%含有する。
(メタ)アクリル酸エステル共重合体(B)としては、アクリル酸、メタクリル酸等のカルボキシル基を有する単量体及びそれらのエステルモノマーを重合させたポリマー、これらモノマーと共重合可能な不飽和単量体(例えば、酢酸ビニル、スチレン、アクリロニトリル)とを共重合させたコポリマーがある。本実施形態の粘着テープでは、粘着剤層を構成する粘着剤は、硬化剤を含有することによって、粘着力をより精密に調整することができる。そして、(メタ)アクリル酸エステル共重合体(B)を構成するアクリルモノマーの少なくとも一つは、官能基含有単量体を含むものが好ましい。この官能基含有単量体は、(メタ)アクリル酸エステル共重合体(B)中に0質量%以上10質量%以下配合され重合されていることが好ましい。この官能基含有単量体の配合比が0.01質量%以上であれば、被着体への粘着力が十分強く水周りの発生が抑制される傾向にあり、この官能基含有単量体の配合比が10質量%以下であれば、被着体への粘着力が高くなりすぎないため、糊残りが発生することを抑制できる傾向にある。
多官能イソシアネート硬化剤(C)はイソシアネート基を2個以上有する点以外に特に限定されず、例えば芳香族ポリイソシアネート、脂肪族ポリイソシアネート、脂環族ポリイソシアネート等が挙げられる。
第2添加剤(D)は、接着フィルムX中の第1添加剤(A)と同一の機能成分である。このため、例えば、第1添加剤(A)が熱重合開始剤である場合、第2添加剤(D)も熱重合開始剤であり、第1添加剤(A)が重合禁止剤である場合、第2添加剤(D)も重合禁止剤である。第2添加剤(D)は、重合禁止剤と熱重合開始剤から選択されることが好ましい。また、第2添加剤(D)は、熱重合開始剤と重合禁止剤から選択される少なくとも1種の機能成分と、光重合開始剤、帯電防止剤、架橋促進剤、老化防止剤、及び軟化剤から選択される少なくとも1種の機能成分を含有することが好ましい。第2添加剤(D)は、第1添加剤(A)に含まれていない機能成分を含有してもよい。例えば、第1添加剤(A)が熱重合開始剤のみである場合に、第2添加剤(D)が熱重合開始剤及び重合禁止剤を含有してもよい。一方、第2添加剤(D)に含まれていない機能成分を第1添加剤(A)が含有してもよい。例えば、第1添加剤(A)が熱重合開始剤及び重合禁止剤を含有する場合に、第2添加剤(D)が熱重合開始剤のみを含んでもよい。第1添加剤(A)及び第2添加剤(D)がそれぞれ複数の機能成分を含有する場合、全ての機能成分が共通していることが好ましい。
<基材フィルムZ>
粘着剤層Yと基材フィルムZを積層してなる粘着テープの、粘着剤層Y側の面に接着フィルムXを貼り付け、粘着シートとする。電子部品の製造に使用する場合には、接着フィルムXと粘着テープの間の粘着力が0.05~1.0N/20mmであることが好ましい。接着フィルムXと粘着剤テープの間の粘着力が1.0N/20mm以下であると剥離不良の発生が抑制され、粘着力が0.05N/20mm以上であると接着フィルムXを適切に保持できる利点があるからである。このような粘着力を付与すべく、粘着剤層Yは、(メタ)アクリル酸エステル共重合体(B)100質量部と、多官能イソシアネート硬化剤(C)0.5~10質量部とを含有する(メタ)アクリル酸エステル共重合体を主成分とするものであることが好ましい。
本実施形態の粘着シートを使用した電子部品の製造方法は特に限定されないが、例えば下記の手順が挙げられる。
(1)基材フィルムZ上に粘着剤層Yが形成された粘着テープを作成する。
(2)粘着テープの粘着剤層Y側の面に接着フィルムXを貼り合せ、粘着シートを作成する。
(3)粘着シートの接着フィルムX側の面にシリコンウエハを貼付けて固定し、ウエハ外周部に沿って切断する。
(4)シリコンウエハの他方の面にダイシング用粘着テープを貼り合わせ、さらにダイシング用粘着テープをリングフレームに固定する。
(5)粘着シートから粘着テープを剥離する。これによって接着フィルムXがシリコンウエハ上に残った状態になる。
(6)接着フィルムX付きウエハをダイシングする。この際に接着フィルムXもダイシングされる。
(7)ダイシング用粘着テープを放射状に拡大してチップ間隔を広げた後、チップを剥離する。剥離された各チップにはダイシングされた接着フィルムXが付着している。
(8)複数のチップを積層し、加熱することで複数のチップを互いに接着させる。
実施例1に係る接着フィルムX、粘着テープ及び粘着シートは下記の処方で作成した。
ポリプロピレングリコール型エポキシ樹脂(東都化成社製、型式:PG208GS)とビスフェノールA型エポキシ樹脂(ジャパンエポキシレジン製、型式:EP828)を35:65の割合(質量比)で混合し、前記エポキシ樹脂100質量部に対しフェノールノボラック系硬化剤(明和化成社製、型式:H-1)を50質量部、及び第1添加剤(A)を含有する接着剤組成物溶液を作製し、接着剤組成物溶液を基材セパレータ上に所定厚さとなる様に塗布して塗布膜を形成した後、該塗布膜を乾燥させることで接着フィルムXを製造した。厚さは30μmであった。第1添加剤(A)は、接着フィルムX中での濃度が5質量%となるように接着剤組成物溶液に添加した。
第1添加剤(A):分子量220のジブチルヒドロキシトルエン(重合禁止剤)、市販品。
粘着テープの粘着剤層を構成する粘着剤は、(メタ)アクリル酸エステル共重合体(B)100質量部、多官能イソシアネート硬化剤(C)5質量部、第2添加剤(D)を前記粘着剤中に5質量%含有した粘着剤溶液をPETセパレーターフィルム上に塗布し、乾燥後の厚さが30μmとなるようにし、基材フィルム100μmに積層することで、粘着テープを得た。
多官能イソシアネート硬化剤(C):2,4-トリレンジイソシアネートのトリメチロールプロパンアダクト体、市販品。
第2添加剤(D):分子量220のジブチルヒドロキシトルエン(重合禁止剤)、市販品。
基材フィルムZ:エチレン-メタアクリル酸-メタアクリル酸アルキルエステル共重合体のZn塩を主体、MFR値1.5g/10分(JIS K7210、210℃)、融点96℃、三井・デュポンポリケミカル社製、市販品。
接着フィルムXを粘着テープの粘着剤層Y側の面にラミネートして粘着シートを得た。
第1添加剤(A)の種類及び濃度、多官能イソシアネート硬化剤(C)の配合量、及び第2添加剤(D)の種類及び濃度を表1~表2に示すように変更した以外は実施例1と同様の方法によって、実施例2~17及び比較例1~6の粘着シートを得た。
(濃度変化抑制度)
接着フィルムXに粘着テープを2kgローラの1往復で圧着して貼り合せて粘着シートを形成した後、45±2℃オーブンで24時間放置した。常温に戻し接着フィルムXと粘着テープを剥離した後、粘着テープ中の第2添加剤(D)の機能成分の濃度変化をGC-MSにて下記の方法で測定した。移行抑制度は、以下の基準で評価した。
A:濃度変化が10%未満
B:濃度変化が10%以上25%未満
C:濃度変化が25%以上50%未満
D:濃度変化が50%以上75%未満
E:濃度変化が75%以上
(1)粘着テープを20mlバイアル瓶に採取し、窒素ガスにて置換、封入する。
(2)175℃×10分加熱し、気相部をGC-MSにて測定する。
(3)接着フィルムX貼り合せ前後の添加剤量を比較し、濃度変化を算出する。
装置名:CombI-PAL-Agilent6890GC-5973N MSシステム
カラム:Hp-5MS 30m×0.25mm×0.25μm
カラム温度:40℃(5分保持) → 10℃/分 → 150℃ → 20℃/分 → 280℃(12.5分保持)
インジェクション温度:250℃
検出器温度:280℃
流量:1ml/分
スプリット:1/50
定流量:7.5psi.(40℃)
粘着シートをシリコンウエハ上に貼り合せ、2kgロ-ラの1往復で圧着し、圧着24時間後に粘着テープと接着フィルムXの界面の粘着力を引張試験機にて下記の方法で測定した。剥離性は、以下の基準で評価した。
◎:粘着力が0.2N/20mm以上0.7N/20mm未満
○:粘着力が0.05N/20mm以上0.2N/20mm未満、又は0.7N/20mm以上1.0N/20mm未満
×:粘着力が0.05N/20mm未満、又は1.0N/20mm以上
剥離方法:180°ピ-ル
引張り速度:300mm/分
Claims (12)
- 接着フィルムXと、粘着剤層Yと、基材フィルムZをX、Y、Zの順に配置した粘着シートであって、
前記接着フィルムXが、基体樹脂と、光重合開始剤、熱重合開始剤、重合禁止剤、帯電防止剤、架橋促進剤、老化防止剤、及び軟化剤から選択される機能成分であり且つ分子量が500以下である第1添加剤(A)を0.05~20質量%含有し、
前記粘着剤層Yが、(メタ)アクリル酸エステル共重合体(B)100質量部と、多官能イソシアネート硬化剤(C)0.5~10質量部と、前記接着フィルムX中の第1添加剤(A)と同一の機能成分であり且つ分子量が500以下である第2添加剤(D)を含有し、
第2添加剤(D)は、前記粘着剤層Y100質量%中に0.1~20質量%であることを特徴とする粘着シート。 - 前記接着フィルムX中での第1添加剤(A)の濃度に対する、前記粘着剤層Y中での第2添加剤(D)の濃度の比は、0.02~4である、請求項1に記載の粘着シート。
- 前記濃度の比は、0.1~3.4である、請求項1に記載の粘着シート。
- 前記濃度の比は、0.5~1.5である、請求項1に記載の粘着シート。
- 第2添加剤(D)は、重合禁止剤と熱重合開始剤から選択される、請求項1~請求項4のいずれか1項に記載の粘着シート。
- 第2添加剤(D)は、熱重合開始剤と重合禁止剤から選択される少なくとも1種の機能成分と、光重合開始剤、帯電防止剤、架橋促進剤、老化防止剤、及び軟化剤から選択される少なくとも1種の機能成分を含有する、請求項1~請求項5の何れか1項に記載の粘着シート。
- 前記重合禁止剤がメチルヒドロキノン、t-ブチルヒドロキノン、4-メトキシナフトール、1,4-ベンゾキノン、メトキノン、ジブチルヒドロキシトルエン、N-ニトロソフェニルヒドロシキルアミンアルミニウム塩、1,4-ナフトキノン、2,2,6,6-テトラメチルピペリジン1-オキシル、4-ターシャリー・ブチルカテコール、ジブチルジチオカルバミン酸銅から選択される1種以上である、請求項5又は請求項6に記載の粘着シート。
- 前記熱重合開始剤がベンゾイルパーオキサイド、クメンハイドロパーオキサイド、2,5-ジメチルヘキサン-2,5-ジハイドロパーオキサイド、2,5-ジメチル-2,5-ジ(t-ブチルパーオキシ)ヘキシン-3、ジ-t-ブチルパーオキサイド、t-ブチルクミルパーオキサイド、α,α'-ビス(t-ブチルパーオキシ-m-イソプロピル)ベンゼン、2,5-ジメチル-2,5-ジ(t-ブチルパーオキシ)ヘキサン、ジクミルパーオキサイド、ジ-t-ブチルパーオキシイソフタレート、t-ブチルパーオキシベンゾエート、2,2-ビス(t-ブチルパーオキシ)ブタン、2,2-ビス(t-ブチルパーオキシ)オクタン、2,5-ジメチル-2,5-ジ(ベンゾイルパーオキシ)ヘキサン、ジ(トリメチルシリル)パーオキサイド、トリメチルシリルトリフェニルシリルパーオキサイドから選択される1種以上である、請求項5~請求項7のいずれか1項に記載の粘着シート。
- 第2添加剤(D)は、第1添加剤(A)と同一物質である、請求項1~請求項8のいずれか1項に記載の粘着シート。
- 前記接着フィルムXは、熱硬化性フィルムである、請求項1~請求項9のいずれか1項に記載の粘着シート。
- 前記粘着剤層Yの厚さは、前記接着フィルムXに対して0.1~4倍の厚さである、請求項1~請求項10のいずれか1項に記載の粘着シート。
- (a)請求項1~請求項11のいずれか1項に記載の粘着シートの接着フィルムX側の面にシリコンウエハを貼付けて固定し、シリコンウエハ外周部に沿って切断する工程と、
(b)前記シリコンウエハの他方の面にダイシング用粘着テープを貼り合わせ、さらにダイシング用粘着テープをリングフレームに固定する工程と、
(c)前記粘着シートから、粘着剤層Yと基材フィルムZで構成される粘着テープを剥離する工程と、
(d)接着フィルムX付きシリコンウエハをダイシングする工程と、
(e)前記ダイシング用粘着テープを放射状に拡大してチップ間隔を広げた後、接着フィルムXが付着しているチップを剥離する工程と、
(f)複数のチップを積層し、加熱することで複数のチップを互いに接着させる工程と、
からなる半導体製品の製造方法。
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WO2023179492A1 (zh) * | 2022-03-25 | 2023-09-28 | 上海海优威新材料股份有限公司 | 用于光伏组件的粘接膜及其制备方法、胶膜、复合体 |
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WO2023179492A1 (zh) * | 2022-03-25 | 2023-09-28 | 上海海优威新材料股份有限公司 | 用于光伏组件的粘接膜及其制备方法、胶膜、复合体 |
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