KR20120005550A - Adhesive composition, adhesive sheet for connecting circuit member, and method for manufacturing semiconductor device - Google Patents
Adhesive composition, adhesive sheet for connecting circuit member, and method for manufacturing semiconductor device Download PDFInfo
- Publication number
- KR20120005550A KR20120005550A KR1020117029354A KR20117029354A KR20120005550A KR 20120005550 A KR20120005550 A KR 20120005550A KR 1020117029354 A KR1020117029354 A KR 1020117029354A KR 20117029354 A KR20117029354 A KR 20117029354A KR 20120005550 A KR20120005550 A KR 20120005550A
- Authority
- KR
- South Korea
- Prior art keywords
- adhesive
- film
- adhesive composition
- circuit
- mass parts
- Prior art date
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- 239000000853 adhesive Substances 0.000 title claims abstract description 155
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 144
- 239000004065 semiconductor Substances 0.000 title claims abstract description 95
- 239000000203 mixture Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 238000000034 method Methods 0.000 title description 47
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 30
- 239000003822 epoxy resin Substances 0.000 claims abstract description 24
- 230000005855 radiation Effects 0.000 claims abstract description 21
- 238000000227 grinding Methods 0.000 claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- 239000003094 microcapsule Substances 0.000 claims abstract description 9
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 35
- -1 methylol compound Chemical class 0.000 claims description 21
- 239000012790 adhesive layer Substances 0.000 claims description 20
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 14
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 239000010408 film Substances 0.000 description 55
- 230000008569 process Effects 0.000 description 24
- 230000000694 effects Effects 0.000 description 14
- 229910000679 solder Inorganic materials 0.000 description 13
- 239000002966 varnish Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 239000002904 solvent Substances 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 230000004907 flux Effects 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229920006287 phenoxy resin Polymers 0.000 description 5
- 239000013034 phenoxy resin Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
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- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
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- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
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- 239000004793 Polystyrene Substances 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- 241000981595 Zoysia japonica Species 0.000 description 3
- 239000000378 calcium silicate Substances 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 3
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- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000004843 novolac epoxy resin Substances 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
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- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 2
- LVNLBBGBASVLLI-UHFFFAOYSA-N 3-triethoxysilylpropylurea Chemical compound CCO[Si](OCC)(OCC)CCCNC(N)=O LVNLBBGBASVLLI-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 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
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
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- 125000000524 functional group Chemical group 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
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- 229910052919 magnesium silicate Inorganic materials 0.000 description 2
- 235000019792 magnesium silicate Nutrition 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 2
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
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- 238000002834 transmittance Methods 0.000 description 2
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- MYWOJODOMFBVCB-UHFFFAOYSA-N 1,2,6-trimethylphenanthrene Chemical compound CC1=CC=C2C3=CC(C)=CC=C3C=CC2=C1C MYWOJODOMFBVCB-UHFFFAOYSA-N 0.000 description 1
- OUPZKGBUJRBPGC-UHFFFAOYSA-N 1,3,5-tris(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)N(CC2OC2)C(=O)N1CC1CO1 OUPZKGBUJRBPGC-UHFFFAOYSA-N 0.000 description 1
- VRCACYBCECBXLM-UHFFFAOYSA-N 1-(4-methylsulfanylphenyl)-2-morpholin-4-ylpropan-1-one Chemical compound C1=CC(SC)=CC=C1C(=O)C(C)N1CCOCC1 VRCACYBCECBXLM-UHFFFAOYSA-N 0.000 description 1
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 1
- KUMMBDBTERQYCG-UHFFFAOYSA-N 2,6-bis(hydroxymethyl)-4-methylphenol Chemical compound CC1=CC(CO)=C(O)C(CO)=C1 KUMMBDBTERQYCG-UHFFFAOYSA-N 0.000 description 1
- KUBDPQJOLOUJRM-UHFFFAOYSA-N 2-(chloromethyl)oxirane;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound ClCC1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 KUBDPQJOLOUJRM-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- WMYINDVYGQKYMI-UHFFFAOYSA-N 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Chemical compound CCC(CO)(CO)COCC(CC)(CO)CO WMYINDVYGQKYMI-UHFFFAOYSA-N 0.000 description 1
- FDSUVTROAWLVJA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OCC(CO)(CO)COCC(CO)(CO)CO FDSUVTROAWLVJA-UHFFFAOYSA-N 0.000 description 1
- UHFFVFAKEGKNAQ-UHFFFAOYSA-N 2-benzyl-2-(dimethylamino)-1-(4-morpholin-4-ylphenyl)butan-1-one Chemical compound C=1C=C(N2CCOCC2)C=CC=1C(=O)C(CC)(N(C)C)CC1=CC=CC=C1 UHFFVFAKEGKNAQ-UHFFFAOYSA-N 0.000 description 1
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- HXLAEGYMDGUSBD-UHFFFAOYSA-N 3-[diethoxy(methyl)silyl]propan-1-amine Chemical compound CCO[Si](C)(OCC)CCCN HXLAEGYMDGUSBD-UHFFFAOYSA-N 0.000 description 1
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
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- 108010010803 Gelatin Proteins 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
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- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
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- QDVNNDYBCWZVTI-UHFFFAOYSA-N bis[4-(ethylamino)phenyl]methanone Chemical compound C1=CC(NCC)=CC=C1C(=O)C1=CC=C(NCC)C=C1 QDVNNDYBCWZVTI-UHFFFAOYSA-N 0.000 description 1
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Abstract
본 발명은 반도체 웨이퍼에의 첩부성, 웨이퍼 이면 연삭성 및 플립 칩 본딩시의 매립성 모두를 고수준으로 만족하는 필름상 접착제의 형성을 가능하게 하는 접착제 조성물을 제공하는 것이다.
상기 과제를 해결하는 접착제 조성물은 (A) 중량 평균 분자량이 2만 이상 10만 이하인 열가소성 수지와, (B) 에폭시 수지와, (C) 방사선 중합성 화합물과, (D) 광개시제와, (E) 마이크로 캡슐형의 경화 촉진제를 포함한다.The present invention provides an adhesive composition which enables the formation of a film adhesive that satisfies all of the adhesion to a semiconductor wafer, the wafer back surface grinding property, and the embedding during flip chip bonding to a high level.
The adhesive composition which solves the said subject is (A) thermoplastic resin whose weight average molecular weights are 20,000 or more and 100,000 or less, (B) epoxy resin, (C) radiation polymerizable compound, (D) photoinitiator, (E) A microcapsule type curing accelerator.
Description
본 발명은 접착제 조성물, 이를 이용한 회로 부재 접속용 접착제 시트 및 반도체 장치의 제조 방법에 관한 것이다.The present invention relates to an adhesive composition, an adhesive sheet for connecting circuit members using the same, and a manufacturing method of a semiconductor device.
일반적으로, 반도체 칩의 실장 기술로서, 반도체 칩을 직접 회로 기판에 접속하는 페이스 다운 본딩 방식이 알려져 있다. 이 방식에는 반도체 칩의 전극 부분에 땜납 범프를 형성하여 회로 기판의 전극에 땜납 접속하는 방법이나, 반도체 칩에 설치한 돌기 전극에 도전성 접착제를 도포하여 회로 기판의 전극과의 전기적인 접속을 행하는 방법이 있다.In general, a face down bonding method for connecting a semiconductor chip directly to a circuit board is known as a mounting technology of a semiconductor chip. In this method, a solder bump is formed on an electrode portion of a semiconductor chip and soldered to an electrode on a circuit board, or a conductive adhesive is applied to a protrusion electrode provided on the semiconductor chip to electrically connect with an electrode on a circuit board. There is this.
페이스 다운 본딩 방식으로 제조된 반도체 장치는 각종 환경 하에 노출되었을 경우, 접속된 칩과 기판의 열팽창 계수 차이에 기초한 스트레스가 접속 계면에서 발생하기 때문에, 접속 신뢰성이 저하되기 쉽다는 문제를 갖고 있다. 이 때문에, 접속 계면의 스트레스를 완화할 목적으로 칩과 기판의 간극을 에폭시 수지 등의 언더필재로 충전하는 것이 행해지고 있다.When the semiconductor device manufactured by the face down bonding method is exposed to various environments, a stress based on the difference in thermal expansion coefficient between the connected chip and the substrate is generated at the connection interface, so that connection reliability tends to be lowered. For this reason, the gap between a chip | tip and a board | substrate is filled with underfill materials, such as an epoxy resin, in order to relieve the stress of a connection interface.
언더필재의 충전 방식으로서는, 칩과 기판을 접속한 후에 저점도의 액상 수지를 주입하는 방식과, 기판 상에 언더필재를 설치한 후에 칩을 탑재하는 방식이 있다. 또한, 후자의 방식에는 액상 수지를 도포하는 방식과 필름상 수지를 첩부하는 방식이 있다.Examples of the filling method for the underfill material include a method of injecting a low viscosity liquid resin after connecting the chip and the substrate, and a method of mounting the chip after installing the underfill material on the substrate. Moreover, the latter system includes the method of apply | coating liquid resin, and the method of sticking film-like resin.
액상 수지를 이용하는 방식은 디스펜서에 의한 정밀한 도포량 조정이 곤란하다. 특히, 최근의 박형화된 칩을 실장하는 경우, 도포량이 너무 많으면, 본딩시에 스며나온 수지가 칩의 측면을 기어올라와 본딩 툴을 오염시키게 된다. 이 때문에, 본 방식에서는 툴의 세정이 필요하게 되어 양산시의 공정이 번잡해진다.In the method using the liquid resin, it is difficult to precisely adjust the coating amount by the dispenser. In particular, in the case of mounting a recent thinned chip, if the coating amount is too large, the resin that has leaked out during bonding will climb up the side of the chip and contaminate the bonding tool. For this reason, in this system, the tool needs to be cleaned, and the mass production process is complicated.
한편, 필름상 수지를 이용하는 방식은 필름의 두께를 조정함으로써 최적의 수지량을 제공하는 것을 용이하게 할 수 있는 반면, 가압착 공정이라 불리는 필름상 수지를 기판에 첩부하는 공정을 필요로 한다. 통상, 가압착 공정은 대상이 되는 칩 폭보다 다소 큰 폭으로 슬릿된 릴상의 접착제 테이프를 준비하고, 칩 크기에 맞게 기재 상의 접착제 테이프를 잘라내어 접착제가 반응하지 않는 정도의 온도에서 기판 상에 열 압착한다. 그런데, 칩 탑재 위치에 필름을 정밀도 좋게 공급하기는 어렵고, 또한 미소 칩 등에 대응한 세폭의 릴 가공은 곤란하기 때문에, 일반적으로 수율의 확보에는 가압착으로 첩부하는 필름을 칩 크기보다 크게 함으로써 대응하고 있다. 이 때문에, 본 방식에서는 인접 부품과의 거리나 실장 면적을 여분으로 확보할 필요가 있어, 고밀도화 실장에 대응하기 어렵다.On the other hand, the method using the film-like resin can facilitate providing the optimum amount of resin by adjusting the thickness of the film, but requires a step of attaching the film-like resin called the pressure bonding step to the substrate. Usually, the pressure bonding process is to prepare a reel-like adhesive tape slit to a width slightly larger than the target chip width, cut out the adhesive tape on the substrate to fit the chip size and thermocompression bonding on the substrate at a temperature such that the adhesive does not react do. By the way, since it is difficult to supply a film accurately to a chip mounting position, and it is difficult to process narrow reels corresponding to microchips, etc., in general, it is possible to secure the yield by making the film affixed by press bonding larger than the chip size. have. For this reason, in this system, it is necessary to ensure extra distance and mounting area with adjacent components, and it is difficult to cope with high density mounting.
최근, 고밀도화 실장 기술의 하나로 필름상 접착제 부착 칩을 이용하는 방법이 검토되고 있다. 예를 들면, 하기 특허문헌 1 및 2 등에는 필름상의 접착제가 첩부된 웨이퍼를 준비하고, 이 웨이퍼의 이면을 연삭한 후, 웨이퍼를 접착제와 함께 절단하여 칩화함으로써, 칩에 칩 크기와 동일 크기의 접착제가 부착된 필름상 접착제 부착 칩을 제조하고, 이것을 회로 기판에 실장하여 반도체 장치를 제조하는 방법이 제안되어 있다.In recent years, the method of using the chip | tip with a film adhesive is examined as one of the densification mounting techniques. For example, in
상기 방법에서의 필름상 접착제는 웨이퍼에의 첩부 공정, 웨이퍼 이면 연삭 공정, 다이싱 공정, 플립 칩 본딩 공정을 거치게 된다. 웨이퍼에의 첩부 공정에서는 웨이퍼에 첩부했을 때에 박리나 공극의 발생을 충분히 억제할 수 있는 첩부성이 필름상 접착제에 요구된다. 웨이퍼 이면 연삭 공정에서는 웨이퍼 이면 연삭성이 우수한 것, 즉 연삭에 의한 파손이나 균열의 발생을 충분히 방지할 수 있는 점착성이나 밀착성을 갖고 있는 것이 필름상 접착제에 요구된다. 플립 칩 본딩 공정에서는 반도체 소자 탑재용 부재 등의 회로 부재와의 접속시에 공극이 발생하기 어려운 매립성이 필름상 접착제에 요구된다.The film adhesive in the said method goes through a sticking process to a wafer, a wafer back surface grinding process, a dicing process, and a flip chip bonding process. In the sticking process to a wafer, the sticking property which can fully suppress peeling and generation | occurrence | production of a space | gap when sticking to a wafer is calculated | required by a film adhesive. In the wafer back surface grinding step, the film adhesive is required to have excellent wafer back surface grinding property, that is, adhesiveness and adhesiveness capable of sufficiently preventing breakage and cracking caused by grinding. In the flip chip bonding process, the embedding property in which a space | gap hardly arises at the time of connection with circuit members, such as a semiconductor element mounting member, is calculated | required by a film adhesive.
그러나, 상기 특허문헌 1에 기재된 웨이퍼 가공용 테이프의 접착제층은 필름 자체가 너무 부드럽기 때문에 고온 압착시에 공극이 생기기 쉬워, 매립 부족으로 인해 신뢰성에 악영향을 미칠 가능성이 있었다. 상기 특허문헌 2에 기재된 접착제 필름은 플립 칩 본딩 공정에서의 매립성이 반드시 충분하다고는 할 수 없고, 특히 땜납 접합을 동시에 행하는 경우의 200 ℃ 이상에서의 열 압착시에 공극이 발생하는 경우가 있었다.However, since the film itself is too soft, the adhesive bond layer of the tape for wafer processing of the said
본 발명은 상기 사정을 감안하여 이루어진 것으로서, 반도체 웨이퍼에의 첩부성, 웨이퍼 이면 연삭성 및 플립 칩 본딩시의 매립성 모두를 고수준으로 만족하는 필름상 접착제의 형성을 가능하게 하는 접착제 조성물, 이를 이용한 회로 부재 접속용 접착제 시트 및 반도체 장치의 제조 방법을 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an adhesive composition which enables the formation of a film adhesive that satisfies all of the adhesiveness to a semiconductor wafer, the wafer back surface grinding property, and the embedding during flip chip bonding at a high level, and using the same It aims at providing the adhesive sheet for circuit member connections, and the manufacturing method of a semiconductor device.
상기 과제를 해결하는 본 발명의 접착제 조성물은, (A) 중량 평균 분자량이 2만 이상 10만 이하인 열가소성 수지와, (B) 에폭시 수지와, (C) 방사선 중합성 화합물과, (D) 광개시제와, (E) 마이크로 캡슐형의 경화 촉진제를 포함한다.The adhesive composition of this invention which solves the said subject is (A) thermoplastic resin whose weight average molecular weights are 20,000 or more and 100,000 or less, (B) epoxy resin, (C) radiation polymerizable compound, (D) photoinitiator, (E) microcapsule type curing accelerator.
본 발명의 접착제 조성물에 따르면, 상기 구성을 가짐으로써, 반도체 웨이퍼에의 첩부성, 웨이퍼 이면 연삭성 및 플립 칩 본딩시의 매립성 모두를 고수준으로 만족하는 필름상 접착제를 형성할 수 있다.According to the adhesive composition of this invention, by having the said structure, the film adhesive which satisfies all the adhesiveness to a semiconductor wafer, the wafer back surface grinding property, and the embedding at the time of flip chip bonding can be formed at a high level.
본 발명의 접착제 조성물에 의해 상기 효과가 얻어지는 이유를 본 발명자들은 이하와 같이 생각하고 있다. 즉, 상기 (A) 내지 (E) 성분을 조합함으로써, 웨이퍼에의 첩부 공정에서 요구되는 비교적 저온에서의 매립성 및 웨이퍼 이면 연삭 공정에서 요구되는 점착성이나 밀착성을 갖는 필름을 형성하면서, 상기 에폭시 수지 및 마이크로 캡슐형의 경화 촉진제의 배합에 의해 속경화성이 얻어지고, 및 방사선 중합성 화합물 및 광개시제의 배합에 의해 플립 칩 본딩 전의 방사선 조사에 의해 가열시의 유동성을 제어할 수 있음으로써, 본딩시에서의 양호한 매립성이 달성되었다고 본 발명자들은 생각하고 있다.The present inventors consider the reason why the said effect is acquired by the adhesive composition of this invention as follows. That is, the said epoxy resin is formed, combining the said (A)-(E) component, forming the film which has the adhesiveness and adhesiveness required by the embedding property at the comparatively low temperature required by the sticking process to a wafer, and the wafer back surface grinding process. And fastening property is obtained by the combination of the microcapsule type curing accelerator, and the fluidity during heating can be controlled by irradiation of the radiation before flip chip bonding by the combination of the radiation polymerizable compound and the photoinitiator. The inventors believe that a good embedding property of?
본 발명의 접착제 조성물은 (A) 성분 100 질량부와, (B) 성분 5 내지 500 질량부와, (C) 성분 5 내지 200 질량부와, (D) 성분 0.1 내지 30 질량부와, (E) 성분 50 내지 300 질량부를 포함하는 것인 것이 바람직하다.Adhesive composition of this invention is 100 mass parts of (A) component, 5-500 mass parts of (B) component, 5-200 mass parts of (C) component, 0.1-30 mass parts of (D) component, (E It is preferable that it contains 50-300 mass parts of components.
또한, 본 발명의 접착제 조성물은 (F) 1 분자 내에 페놀성 수산기를 1개 갖는 메틸올 화합물을 더 포함할 수 있다. 이러한 화합물을 배합함으로써, 매립성을 손상시키지 않고 수지 조성물에 플럭스 활성을 부여할 수 있다. 이러한 접착제 조성물을 땜납 접합되는 회로 부재 사이에 개재시킨 경우, 땜납 표면의 산화막을 제거하기 위한 플럭스 활성이 충분히 얻어지고, 가열 가압에 의해 땜납 접합과 접착제의 경화를 동시에 함께 양호하게 행하는 것이 가능해진다.Moreover, the adhesive composition of this invention can further contain the methylol compound which has one phenolic hydroxyl group in 1 molecule of (F). By mix | blending these compounds, flux activity can be provided to a resin composition without impairing embedding. When such an adhesive composition is interposed between the circuit members to be solder-bonded, the flux activity for removing the oxide film on the solder surface is sufficiently obtained, and it is possible to perform both solder bonding and curing of the adhesive at the same time with good heat and pressure.
본 발명의 접착제 조성물은 서로 대향하는 회로 부재 사이에 개재시켜, 회로 부재끼리를 접착하기 위해 사용할 수 있다.The adhesive composition of this invention can be interposed between the circuit members which mutually oppose, and can be used in order to adhere | attach circuit members.
본 발명의 회로 부재 접속용 접착제 시트는, 지지 기재와, 상기 지지 기재 상에 설치되며 상기 본 발명의 접착제 조성물을 포함하는 접착제층을 구비하는 것을 특징으로 한다. 본 발명의 회로 부재 접속용 접착제 시트는 접착제층을 서로 대향하는 회로 부재 사이에 개재시켜, 회로 부재끼리를 접착하기 위해 사용할 수 있다.The adhesive sheet for circuit member connection of this invention is provided with a support base material and the adhesive bond layer provided on the said support base material and containing the said adhesive composition of this invention. It is characterized by the above-mentioned. The adhesive sheet for a circuit member connection of this invention can be used in order to interpose an adhesive bond layer between circuit members which mutually oppose, and to bond circuit members.
본 발명은 또한, 주면의 한쪽에 복수의 회로 전극을 갖는 반도체 웨이퍼를 준비하고, 상기 반도체 웨이퍼의 회로 전극이 설치되어 있는 측에, 상기 본 발명의 회로 부재 접속용 접착제 시트의 접착제층을 첩부하는 공정과, 반도체 웨이퍼의 회로 전극이 설치되어 있는 측과는 반대측을 연삭하여 반도체 웨이퍼를 박화하는 공정과, 접착제층에 방사선을 조사하는 공정과, 박화한 반도체 웨이퍼 및 방사선이 조사된 접착제층을 다이싱하여 필름상 접착제 부착 반도체 소자로 개편화하는 공정과, 필름상 접착제 부착 반도체 소자와 반도체 소자 탑재용 지지 부재를 필름상 접착제 부착 반도체 소자의 필름상 접착제를 통해 접착하는 공정을 구비하는 반도체 장치의 제조 방법을 제공한다.This invention further prepares the semiconductor wafer which has a some circuit electrode in one of the main surfaces, and affixes the adhesive bond layer of the adhesive sheet for circuit member connection of this invention to the side in which the circuit electrode of the said semiconductor wafer is provided. The process and the process of thinning a semiconductor wafer by grinding the opposite side to the side where the circuit electrode of a semiconductor wafer is provided, the process of irradiating a radiation layer to an adhesive bond layer, the thinned semiconductor wafer, and the adhesive bond layer which irradiated the radiation die And a step of separating the semiconductor element with a film adhesive into a semiconductor element with a film adhesive, and a step of adhering the semiconductor element with a film adhesive and a supporting member for mounting a semiconductor element through a film adhesive of a semiconductor element with a film adhesive. It provides a manufacturing method.
본 발명에 따르면, 반도체 웨이퍼에의 첩부성, 웨이퍼 이면 연삭성 및 다이 본딩시의 매립성 모두를 고수준으로 만족하는 필름상 접착제의 형성을 가능하게 하는 접착제 조성물, 및 이를 이용한 회로 부재 접속용 접착제 시트를 제공할 수 있다. 또한, 본 발명에 따르면, 상기 회로 부재 접속용 접착제 시트를 이용한 반도체 장치의 제조 방법을 제공할 수 있고, 이에 따라 접속 신뢰성이 우수한 반도체 장치를 제공할 수 있다.ADVANTAGE OF THE INVENTION According to this invention, the adhesive composition which enables formation of the film adhesive which satisfies all the adhesion to a semiconductor wafer, wafer back surface grinding property, and the embedding at the time of die bonding at high level, and the adhesive sheet for circuit member connection using the same Can be provided. Moreover, according to this invention, the manufacturing method of the semiconductor device using the said adhesive agent sheet for a circuit member connection can be provided, and the semiconductor device excellent in connection reliability can be provided by this.
도 1은 본 발명에 따른 회로 부재 접속용 접착제 시트의 바람직한 일 실시 형태를 나타내는 모식 단면도이다.
도 2는 본 발명에 따른 반도체 장치의 제조 방법의 일 실시 형태를 설명하기 위한 모식 단면도이다.
도 3은 본 발명에 따른 반도체 장치의 제조 방법의 일 실시 형태를 설명하기 위한 모식 단면도이다.
도 4는 본 발명에 따른 반도체 장치의 제조 방법의 일 실시 형태를 설명하기 위한 모식 단면도이다.
도 5는 본 발명에 따른 반도체 장치의 제조 방법의 일 실시 형태를 설명하기 위한 모식 단면도이다.
도 6은 본 발명에 따른 반도체 장치의 제조 방법의 일 실시 형태를 설명하기 위한 모식 단면도이다.1: is a schematic cross section which shows preferable one Embodiment of the adhesive agent sheet for a circuit member connection based on this invention.
It is a schematic cross section for demonstrating one Embodiment of the manufacturing method of the semiconductor device which concerns on this invention.
It is a schematic cross section for demonstrating one Embodiment of the manufacturing method of the semiconductor device which concerns on this invention.
It is a schematic cross section for demonstrating one Embodiment of the manufacturing method of the semiconductor device which concerns on this invention.
It is a schematic cross section for demonstrating one Embodiment of the manufacturing method of the semiconductor device which concerns on this invention.
It is a schematic cross section for demonstrating one Embodiment of the manufacturing method of the semiconductor device which concerns on this invention.
도 1은 본 발명에 따른 회로 부재 접속용 접착제 시트의 바람직한 일 실시 형태를 나타내는 모식 단면도이다. 도 1에 나타내는 회로 부재 접속용 접착제 시트 (10)은 지지 기재 (3)과, 상기 지지 기재 (3) 상에 설치되며 본 발명의 접착제 조성물을 포함하는 접착제층 (2)와, 접착제층 (2)를 피복하는 보호 필름 (1)을 구비하고 있다.1: is a schematic cross section which shows preferable one Embodiment of the adhesive agent sheet for a circuit member connection based on this invention. The
우선, 접착제층 (2)를 구성하는 본 발명의 접착제 조성물에 대하여 설명한다.First, the adhesive composition of this invention which comprises the
본 발명의 접착제 조성물은 (A) 중량 평균 분자량이 2만 이상 10만 이하인 열가소성 수지와, (B) 에폭시 수지와, (C) 방사선 중합성 화합물과, (D) 광개시제와, (E) 마이크로 캡슐형의 경화 촉진제를 포함한다.The adhesive composition of the present invention comprises (A) a thermoplastic resin having a weight average molecular weight of 20,000 or more and 100,000 or less, (B) an epoxy resin, (C) a radiation polymerizable compound, (D) a photoinitiator, and (E) a microcapsule. A hardening accelerator of the type.
(A) 중량 평균 분자량이 2만 이상 10만 이하인 열가소성 수지는, 예를 들면 접착제 조성물에 도막성을 부여하기 위해 사용된다. 구체예로서는, 예를 들면 폴리에스테르, 폴리우레탄, 폴리비닐부티랄, 폴리아릴레이트, 폴리메틸메타크릴레이트, 아크릴 고무, 폴리스티렌, 페녹시 수지, NBR, SBR, 폴리이미드나 실리콘 변성 수지(아크릴 실리콘, 에폭시 실리콘, 폴리이미드 실리콘) 등의 열가소성 수지를 들 수 있다. 이들은 1종을 단독으로 또는 2종 이상을 조합하여 사용할 수 있다. 상기 수지 중, 접착 후의 고신뢰성이 얻어지기 쉬워지는 고 Tg화의 관점에서 페녹시 수지가 바람직하다. 페녹시 수지로서는, 도토 가세이(주) 제조 FX-293, YP-70 등을 사용할 수 있다.(A) The thermoplastic resin whose weight average molecular weights are 20,000 or more and 100,000 or less is used, for example in order to provide coating property to an adhesive composition. Specific examples thereof include polyester, polyurethane, polyvinyl butyral, polyarylate, polymethyl methacrylate, acrylic rubber, polystyrene, phenoxy resin, NBR, SBR, polyimide and silicone modified resin (acrylic silicone, Thermoplastic resins such as epoxy silicone and polyimide silicone). These can be used individually by 1 type or in combination of 2 or more type. Among the above resins, phenoxy resins are preferable from the viewpoint of high Tg in which high reliability after adhesion is easily obtained. As phenoxy resin, Toto Kasei Co., Ltd. FX-293, YP-70, etc. can be used.
또한, (A) 성분은 리플로우 내성 면에서 (B) 에폭시 수지와 비상용인 것이 바람직하다. 다만, 상용성에 대해서는 (A) 성분의 특성만으로는 결정되지 않기 때문에, (A) 성분 및 (B) 성분 둘 다가 상용하지 않는 조합을 선택한다.Moreover, it is preferable that (A) component is incompatible with (B) epoxy resin from a reflow resistance viewpoint. However, since compatibility is not determined solely by the properties of the component (A), a combination in which both the component (A) and the component (B) are not compatible is selected.
(A) 성분의 중량 평균 분자량은 2만 이상 10만 이하이지만, 3만 이상 9.5만 이하인 것이 바람직하고, 4만 이상 9만 이하인 것이 보다 바람직하고, 5만 이상 8만 이하인 것이 특히 바람직하다. 중량 평균 분자량이 이 범위에 있으면, 시트상 또는 필름상으로 한 접착제층의 강도, 가요성을 양호하게 균형시키는 것이 용해짐과 동시에 접착제층의 플로우성이 양호해지기 때문에, 배선의 회로 충전성(매립성)을 충분히 확보할 수 있다. 또한, 본 명세서에 있어서, 중량 평균 분자량이란, 표 1에 나타내는 조건에 따라서 겔 침투 크로마토그래프(GPC)로부터 표준 폴리스티렌에 의한 검량선을 이용하여 측정한 값을 말한다.Although the weight average molecular weights of (A) component are 20,000 or more and 100,000 or less, it is preferable that they are 30,000 or more and 9.50,000 or less, It is more preferable that they are 40,000 or more and 90,000 or less, It is especially preferable that they are 50,000 or more and 80,000 or less. When the weight average molecular weight is in this range, it is possible to achieve good balance between the strength and flexibility of the adhesive layer in the sheet or film form and to improve the flowability of the adhesive layer. Buried property) can be sufficiently secured. In addition, in this specification, a weight average molecular weight means the value measured using the analytical curve by standard polystyrene from a gel permeation chromatograph (GPC) according to the conditions shown in Table 1.
(B) 에폭시 수지로서는, 경화되어 접착 작용을 갖는 것이면 특별히 한정되지 않으며, 예를 들면 에폭시 수지 핸드북(신보 마사키편, 일간공업신문사) 등에 기재되는 에폭시 수지를 널리 사용할 수 있다. 구체적으로는, 예를 들면 비스페놀 A형 에폭시 등의 이관능 에폭시 수지, 페놀노볼락형 에폭시 수지나 크레졸노볼락형 에폭시 수지 등의 노볼락형 에폭시 수지, 트리스페놀메탄형 에폭시 수지 등을 사용할 수 있다. 또한, 다관능 에폭시 수지, 글리시딜아민형 에폭시 수지, 복소환 함유 에폭시 수지 또는 지환식 에폭시 수지 등, 일반적으로 알려져 있는 것을 적용할 수 있다.The epoxy resin (B) is not particularly limited as long as it is cured and has an adhesive action. For example, the epoxy resin described in an epoxy resin handbook (Shinbo Masaki edition, Daily Industry News, Inc.) or the like can be widely used. Specifically, for example, bifunctional epoxy resins such as bisphenol A epoxy, novolac epoxy resins such as phenol novolac epoxy resins and cresol novolac epoxy resins, trisphenol methane epoxy resins, and the like can be used. . Moreover, what is generally known, such as a polyfunctional epoxy resin, a glycidylamine type | mold epoxy resin, a heterocyclic containing epoxy resin, or an alicyclic epoxy resin, can be applied.
비스페놀 A형 에폭시 수지로서는, 재팬 에폭시 레진(주) 제조 에피코트 807, 815, 825, 827, 828, 834, 1001, 1004, 1007, 1009, 다우 케미컬사 제조 DER-330, 301, 361, 도토 가세이(주) 제조 YD8125, YDF8170 등을 들 수 있다. 페놀노볼락형 에폭시 수지로서는, 재팬 에폭시 레진(주) 제조 에피코트 152, 154, 닛본 가야꾸(주) 제조 EPPN-201, 다우 케미컬사 제조 DEN-438 등을, 또한 o-크레졸노볼락형 에폭시 수지로서는, 닛본 가야꾸(주) 제조 EOCN-102S, 103S, 104S, 1012, 1025, 1027, 도토 가세이(주) 제조 YDCN 701, 702, 703, 704 등을 들 수 있다. 다관능 에폭시 수지로서는, 재팬 에폭시 레진(주) 제조 Epon 1031S, 1032-H60, 시바 스페셜리티 케미컬즈사 제조 아랄다이트 0163, 나가세 가세이(주) 제조 데나콜 EX-611, 614, 614B, 622, 512, 521, 421, 411, 321 등을 들 수 있다. 아민형 에폭시 수지로서는, 재팬 에폭시 레진(주) 제조 에피코트 604, 도토 가세이(주) 제조 YH-434, 미츠비시 가스 가가꾸(주) 제조 TETRAD-X, TETRAD-C, 스미또모 가가꾸(주) 제조 ELM-120 등을 들 수 있다. 복소환 함유 에폭시 수지로서는, 시바 스페셜리티 케미컬즈사 제조 아랄다이트 PT810 등의, UCC사 제조 ERL 4234, 4299, 4221, 4206 등을 들 수 있다. 이들 에폭시 수지는 단독으로 또는 2종 이상을 조합하여 사용할 수 있다.As bisphenol-A epoxy resin, Japan epoxy resin Co., Ltd. Epicoat 807, 815, 825, 827, 828, 834, 1001, 1004, 1007, 1009, Dow Chemical company DER-330, 301, 361, Toto Kasei YD8125, YDF8170, etc. can be mentioned. As a phenol novolak-type epoxy resin, Japan epoxy resin Co., Ltd. Epicoat 152, 154, Nippon Kayaku Co., Ltd. EPPN-201, Dow Chemical company DEN-438, etc. are further mentioned o-cresol novolak-type epoxy As resin, Nippon Kayaku Co., Ltd. product EOCN-102S, 103S, 104S, 1012, 1025, 1027, Toto Kasei Co., Ltd. product YDCN 701, 702, 703, 704, etc. are mentioned. As a polyfunctional epoxy resin, Japan Epoxy Resin Co., Ltd. make Epon 1031S, 1032-H60, Shiba Specialty Chemicals Corporation Araldite 0163, Nagase Kasei Co., Ltd. make Denacol EX-611, 614, 614B, 622, 512, 521, 421, 411, 321, etc. are mentioned. As an amine epoxy resin, Japan epoxy resin Co., Ltd. Epicoat 604, Toto Kasei Co., Ltd. YH-434, Mitsubishi Gas Chemical Co., Ltd. product TETRAD-X, TETRAD-C, Sumitomo Chemical Co., Ltd. Manufacture ELM-120 etc. are mentioned. Examples of the heterocyclic-containing epoxy resins include ERL 4234, 4299, 4221, 4206 manufactured by UCC, such as Araldite PT810 manufactured by Ciba Specialty Chemicals. These epoxy resins may be used alone or in combination of two or more.
본 발명에서는 고접착력을 부여하는 관점에서, 비스페놀 A형 에폭시 수지 및 페놀노볼락형 에폭시 수지를 이용하는 것이 바람직하다.In this invention, it is preferable to use a bisphenol-A epoxy resin and a phenol novolak-type epoxy resin from a viewpoint of providing a high adhesive force.
본 발명에 따른 접착제 조성물에서의 (B) 성분의 함유량은 (A) 성분 100 질량부에 대하여 5 내지 500 질량부인 것이 바람직하고, 50 내지 500 질량부인 것이 보다 바람직하고, 75 내지 400 질량부로 하는 것이 보다 더 바람직하고, 100 내지 300 질량부로 하는 것이 특히 바람직하다. (B) 성분의 함유량이 상기 범위에 있으면, 필름상으로 형성한 접착제층의 탄성률 및 성형시의 플로우성 억제를 충분히 확보할 수 있어, 고온에서의 취급성을 양호하게 할 수 있다.It is preferable that content of (B) component in the adhesive composition which concerns on this invention is 5-500 mass parts with respect to 100 mass parts of (A) component, It is more preferable that it is 50-500 mass parts, It is 75-400 mass parts It is further more preferable, and it is especially preferable to set it as 100-300 mass parts. When content of (B) component exists in the said range, the elasticity modulus of the adhesive bond layer formed in the film form, and flow control at the time of shaping | molding can be fully ensured, and the handleability at high temperature can be made favorable.
(C) 방사선 중합성 화합물로서는, 방사선의 조사에 의해 가교할 수 있는 화합물을 들 수 있다. 구체적으로는, 펜타에리트리톨트리아크릴레이트, 디펜타에리트리톨헥사아크릴레이트, 디펜타에리트리톨펜타아크릴레이트, 트리메틸올프로판트리아크릴레이트, 이소시아누르산 EO 변성 트리아크릴레이트, 디트리메틸올프로판테트라아크릴레이트, 펜타에리트리톨테트라아크릴레이트, 디시클로펜테닐옥시에틸아크릴레이트, 2,2-비스〔4-(메타크릴옥시·디에톡시)페닐〕프로판 등의 아크릴레이트 또는 메타크릴레이트를 들 수 있다. 이들 화합물은 단독으로 또는 2종 이상을 조합하여 사용할 수 있다. 또한, 신나카무라 가가꾸 가부시끼가이샤 제조: A-DPH, 히타치 가세이 고교 가부시끼가이샤 제조: FA-512AS, FA-513AS 등의 시판품을 사용할 수 있다.(C) As a radiation polymeric compound, the compound which can be bridge | crosslinked by irradiation of radiation is mentioned. Specifically, pentaerythritol triacrylate, dipentaerythritol hexaacrylate, dipentaerythritol pentaacrylate, trimethylolpropane triacrylate, isocyanuric acid EO-modified triacrylate, ditrimethylolpropane tetraacrylic And acrylates such as pentaerythritol tetraacrylate, dicyclopentenyloxyethyl acrylate, and 2,2-bis [4- (methacryloxydiethoxy) phenyl] propane. These compounds can be used individually or in combination of 2 or more types. Moreover, commercial items, such as those made by Shin-Nakamura Chemical Industries, Ltd .: A-DPH, Hitachi Chemical Industries, Ltd .: FA-512AS, FA-513AS, etc. can be used.
본 발명에 따른 접착제 조성물에서의 (C) 성분의 함유량은 (A) 성분 100 질량부에 대하여 5 내지 200 질량부가 바람직하다. 이러한 함유량이 5 질량부 이상이면, 자외선 등의 방사선 조사에 의한 방사선 중합성 화합물의 중합 반응을 충분히 진행시킬 수 있고, 고온 압착시의 유동성을 억제할 수 있다. 한편, 배합량이 200 질량부를 초과하면, 가교가 지나치게 발생하여, 압착에 필요한 유동성이 얻어지기 어려워지기 때문에 바람직하지 않다. 이들 점을 고려하면, 상기 배합량은 10 내지 150 질량부가 보다 바람직하고, 20 내지 100 질량부가 특히 바람직하다.As for content of (C) component in the adhesive composition which concerns on this invention, 5-200 mass parts is preferable with respect to 100 mass parts of (A) component. When such content is 5 parts by mass or more, the polymerization reaction of the radiation polymerizable compound by irradiation with radiation such as ultraviolet rays can be sufficiently advanced, and the fluidity at the time of high temperature compression can be suppressed. On the other hand, when the blending amount exceeds 200 parts by mass, crosslinking occurs excessively, and thus the fluidity required for pressing becomes difficult to obtain, which is not preferable. Taking these points into consideration, the blending amount is more preferably 10 to 150 parts by mass, and particularly preferably 20 to 100 parts by mass.
(D) 광개시제로서는, 방사선의 조사에 의해 상기 (C) 성분을 경화시킬 수 있는 화합물을 들 수 있다. (D) 성분의 구체예로서는, 예를 들면 4,4'-디에틸아미노벤조페논, 4,4'-디메틸아미노벤조페논 등의 벤조페논류, 1-히드록시-시클로헥실페닐케톤, 2-메틸-1[4-(메틸티오)페닐]-2-모르폴리노프로판-1-온, 2-벤질-2-디메틸아미노-1-(4-모르폴리노페닐)-부타논-1 등의 케톤류, 및 비스(2,4,6-트리메틸벤조일)-페닐포스핀옥사이드를 들 수 있다. 그 중에서도 용매에 대한 용해성이나 열시의 안정성 면에서, 시바 스페셜리티 케미컬즈(주)사 제조의 Irg-184, Irg-819가 바람직하다. 또한, 광개시제는 1종을 단독으로 또는 2종 이상을 조합하여 사용할 수 있다.(D) As a photoinitiator, the compound which can harden the said (C) component by irradiation of a radiation is mentioned. As a specific example of (D) component, For example, benzophenones, such as 4,4'- diethylamino benzophenone and a 4,4'- dimethylamino benzophenone, 1-hydroxy cyclohexyl phenyl ketone, 2-methyl Ketones such as -1 [4- (methylthio) phenyl] -2-morpholinopropane-1-one and 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone-1 And bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide. Especially, Irg-184 and Irg-819 by Ciba Specialty Chemicals Co., Ltd. are preferable from the viewpoint of the solubility to a solvent and the stability at the time of heat. In addition, a photoinitiator can be used individually by 1 type or in combination of 2 or more type.
본 발명에 따른 접착제 조성물에서의 (D) 성분의 함유량은 (A) 성분 100 질량부에 대하여 0.1 내지 30 질량부인 것이 바람직하다. 이러한 함유량이 0.1 질량부보다 적으면, 미반응 (D) 성분이 잔존하기 쉬워진다. 이 경우, 고온 압착시에 공극이 많아져, 매립성에 악영향을 주는 경향이 있다. 한편, 상기 함유량이 30 질량부를 초과하면, 중합 반응에 의해 분자량을 충분히 증가시키는 것이 곤란해져, 저분자량 성분이 많이 존재하는 경향이 있다. 이 경우, 저분자량 성분이 열시의 유동성에 영향을 미칠 가능성이 있다. 이들 점을 고려하면, 상기 함유량은 0.5 내지 25 질량부가 보다 바람직하고, 1 내지 20 질량부가 특히 바람직하다.It is preferable that content of (D) component in the adhesive composition which concerns on this invention is 0.1-30 mass parts with respect to 100 mass parts of (A) component. When such content is less than 0.1 mass part, unreacted (D) component will remain easily. In this case, there is a tendency that the voids increase at the time of high temperature compression and adversely affect the embedding properties. On the other hand, when the said content exceeds 30 mass parts, it will become difficult to fully increase molecular weight by a polymerization reaction, and there exists a tendency for many low molecular weight components to exist. In this case, the low molecular weight component may affect the fluidity at the time of heat. Taking these points into consideration, the content is more preferably from 0.5 to 25 parts by mass, and particularly preferably from 1 to 20 parts by mass.
(E) 마이크로 캡슐형의 경화 촉진제로서는, 폴리우레탄, 폴리스티렌, 젤라틴 및 폴리이소시아네이트 등의 고분자 물질, 규산칼슘, 제올라이트 등의 무기물, 또는 니켈이나 구리 등의 금속 박막 등의 피막에 의해 경화 촉진제를 포함하는 핵이 실질적으로 덮여 있는 것을 들 수 있다. 캡슐에 내포되는 경화 촉진제로서는, 예를 들면 이미다졸, 테트라페닐포스포늄테트라페닐보레이트 등을 들 수 있다. 이들 중, 보존 안정성, 속경화성 면에서 이미다졸이 바람직하다.(E) The microcapsule-type curing accelerator contains a curing accelerator by a polymer such as polyurethane, polystyrene, gelatin, polyisocyanate, inorganic materials such as calcium silicate, zeolite, or a thin film of metal such as nickel or copper. It is mentioned that the nucleus is substantially covered. As a hardening accelerator contained in a capsule, imidazole, tetraphenyl phosphonium tetraphenyl borate, etc. are mentioned, for example. Among them, imidazole is preferable in view of storage stability and fast curing property.
마이크로 캡슐의 평균 입경은 필름 형성성의 관점에서 10 μm 이하가 바람직하고, 5 μm 이하가 보다 바람직하다. 또한, 입경의 하한치는 보존 안정성을 보다 확실하게 얻는 관점에서 2 μm 이상인 것이 바람직하다.10 micrometers or less are preferable and, as for the average particle diameter of a microcapsule, 5 micrometers or less are more preferable. Moreover, it is preferable that the lower limit of a particle size is 2 micrometers or more from a viewpoint which acquires storage stability more reliably.
(E) 성분은 시판품을 사용할 수 있고, 예를 들면 아사히 가세이 케미컬즈 가부시끼가이샤 제조 HP-3941, HP-4032 등을 들 수 있다.A commercial item can be used for (E) component, For example, Asahi Kasei Chemicals Co., Ltd. HP-3941, HP-4032, etc. are mentioned.
본 발명에 따른 접착제 조성물에서의 (E) 성분의 함유량은 (A) 성분 100 질량부에 대하여 50 내지 300 질량부인 것이 바람직하다. 이러한 함유량이 50 질량부 미만이면, 경화 반응이 진행되기 어려워지는 경향이 있고, 300 질량부를 초과하면, 마이크로 캡슐형의 경화 촉진제에 포함되어 있는 액상 성분의 영향으로 공극이 발생하기 쉬워지는 경향이 있다. 이들 점을 고려하면, 상기 함유량은 75 내지 250 질량부가 보다 바람직하고, 100 내지 200 질량부가 보다 더 바람직하다.It is preferable that content of (E) component in the adhesive composition which concerns on this invention is 50-300 mass parts with respect to 100 mass parts of (A) component. If such content is less than 50 parts by mass, the curing reaction tends to be less likely to proceed, and if it exceeds 300 parts by mass, voids tend to be generated under the influence of the liquid component contained in the microcapsule type curing accelerator. . Taking these points into consideration, the content is more preferably 75 to 250 parts by mass, and even more preferably 100 to 200 parts by mass.
본 발명에 따른 접착제 조성물은 (F) 1 분자 내에 페놀 수산기를 1개 갖는 메틸올 화합물을 더 함유할 수 있다. 이러한 화합물을 배합함으로써, 매립성을 손상시키지 않고 접착제층 (2)에 플럭스 활성을 부여할 수 있다.The adhesive composition which concerns on this invention can further contain the methylol compound which has one phenol hydroxyl group in 1 molecule of (F). By mix | blending such a compound, flux activity can be provided to the
(F) 1 분자 내에 페놀 수산기를 1개 갖는 메틸올 화합물로서는, 이하의 플럭스 활성 시험에 있어서 땜납 볼을 거의 1개에 응집시킬 수 있는 것이 바람직하다. 시험은 구리판상에 3 mmφ의 땜납 볼을 10개 두고, 거기에 메틸올 화합물을 약 200 mg 얹고, 260 ℃로 데워진 핫 플레이트 상에서 가열하고, 30초 경과 후의 땜납 볼의 상태를 관찰한다.(F) As a methylol compound which has one phenol hydroxyl group in 1 molecule, it is preferable that a solder ball can be aggregated in almost one in the following flux activity tests. In the test, ten solder balls of 3 mm? Were placed on a copper plate, and about 200 mg of a methylol compound was placed thereon, heated on a hot plate warmed at 260 ° C., and the state of the solder balls after 30 seconds was observed.
또한, (F) 성분은 필름 형성시에는 반응이 억제되어 활성이 유지되고, 고온 압착시에는 활성을 보인 후에 반응하여 계 내에 도입된다는 설계의 관점에서, 페놀성 수산기의 양 이웃에 메틸올기가 존재하는 메틸올 화합물인 것이 바람직하다.The component (F) has a methylol group in both neighbors of the phenolic hydroxyl group in view of the design that the reaction is suppressed during film formation and the activity is maintained, and the activity is introduced after reacting at high temperature compression and introduced into the system. It is preferable that it is a methylol compound.
또한, (F) 성분은 하기 화학식 (1)로 표시되는 메틸올 화합물이 바람직하다.Moreover, the methylol compound in which (F) component is represented by following General formula (1) is preferable.
화학식 (1) 중, X는 탄소수 1 내지 10의 알킬기를 나타내고, 탄소수가 2 이상이고 메틸렌기를 갖는 경우, 메틸렌기의 적어도 하나가 -O-, -NH-, -S-, -CO-, -OCO- 또는 -COO-로 치환되어 있을 수도 있고, 탄소수가 3 이상이고 메틴기(-CH<)를 갖는 경우, 메틴기의 적어도 하나가 질소 원자로 치환되어 있을 수도 있다.In the formula (1), X represents an alkyl group having 1 to 10 carbon atoms, and when the carbon number is 2 or more and has a methylene group, at least one of the methylene groups is -O-, -NH-, -S-, -CO-,- It may be substituted by OCO- or -COO-, and when carbon number is three or more and has a methine group (-CH <), at least 1 of a methine group may be substituted by the nitrogen atom.
또한, 플럭스 활성이나 도공 용매에 대한 용해성의 관점에서, 상기 화학식 (1)에서의 X가 탄소수 1 내지 10의 직쇄상 또는 분지상의 알킬기인 메틸올 화합물을 이용하는 것이 바람직하다. 또한, 도공 용매에 대한 용해성의 관점에서, X가 메틸기 등인 메틸올 화합물을 이용하는 것이 바람직하다. 구체적으로는, 혼슈 가가꾸(주) 제조의 상품명: DML-POP, DML-PC 등을 들 수 있다.Moreover, it is preferable to use the methylol compound whose X in General formula (1) is a C1-C10 linear or branched alkyl group from a flux activity or the solubility to a coating solvent. Moreover, it is preferable to use the methylol compound whose X is a methyl group etc. from a solubility viewpoint with respect to a coating solvent. Specifically, Honshu Chemical Co., Ltd. brand name: DML-POP, DML-PC, etc. are mentioned.
본 발명에 따른 접착제 조성물에서의 (F) 성분의 함유량은 매립성을 충분히 유지하면서 양호한 플럭스 활성을 얻는 관점에서, 접착제 조성물 전량을 기준으로 하여 2 내지 30 질량%인 것이 바람직하다. 이러한 함유량이 2 질량% 미만이면, 충분한 플럭스 활성이 발현되지 않을 가능성이 있고, 한편 30 질량%를 초과하면, 공극이 발생하기 쉬워지는 경향이 있다.It is preferable that content of (F) component in the adhesive composition which concerns on this invention is 2-30 mass% on the basis of the adhesive composition whole quantity from a viewpoint of obtaining favorable flux activity, maintaining sufficient embedding property. When such content is less than 2 mass%, there exists a possibility that sufficient flux activity may not be expressed, and when it exceeds 30 mass%, there exists a tendency for a space to generate easily.
본 발명에 따른 접착제 조성물에는, 형성되는 접착제층의 취급성 향상, 열전도성 향상, 용융 점도의 조정 및 틱소트로픽성 부여 등을 목적으로 하여 무기 충전재를 첨가할 수 있다. 무기 충전재로서는 특별히 제한은 없고, 예를 들면 수산화알루미늄, 수산화마그네슘, 탄산칼슘, 탄산마그네슘, 규산칼슘, 규산마그네슘, 산화칼슘, 산화마그네슘, 산화알루미늄, 질화알루미늄, 질화붕소, 결정성 실리카, 비정질성 실리카 등을 들 수 있다. 이들 충전재는 단독으로 또는 2종 이상을 조합하여 사용할 수 있다. 또한, 충전재의 형상은 특별히 제한되지 않는다.Inorganic fillers can be added to the adhesive composition according to the present invention for the purpose of improving the handleability of the adhesive layer to be formed, improving the thermal conductivity, adjusting the melt viscosity and imparting thixotropic properties. There is no restriction | limiting in particular as an inorganic filler, For example, aluminum hydroxide, magnesium hydroxide, calcium carbonate, magnesium carbonate, calcium silicate, magnesium silicate, calcium oxide, magnesium oxide, aluminum oxide, aluminum nitride, boron nitride, crystalline silica, amorphous Silica, and the like. These fillers can be used individually or in combination of 2 or more types. In addition, the shape of the filler is not particularly limited.
상기 충전재 중에서도, 열전도성 향상을 위해서는, 산화알루미늄, 질화알루미늄, 질화붕소, 결정성 실리카, 비정질성 실리카 등이 바람직하다. 또한, 용융 점도의 조정이나 틱소트로픽성의 부여 목적으로는 수산화알루미늄, 수산화마그네슘, 탄산칼슘, 탄산마그네슘, 규산칼슘, 규산마그네슘, 산화칼슘, 산화마그네슘, 산화알루미늄, 결정성 실리카, 비정질성 실리카 등이 바람직하다. 또한, 필름의 열시 유동성 향상을 위해서는 나노 충전재를 이용하는 것이 보다 바람직하다.Among the above fillers, for the purpose of improving thermal conductivity, aluminum oxide, aluminum nitride, boron nitride, crystalline silica, amorphous silica and the like are preferable. In addition, for the purpose of adjusting melt viscosity and providing thixotropic properties, aluminum hydroxide, magnesium hydroxide, calcium carbonate, magnesium carbonate, calcium silicate, magnesium silicate, calcium oxide, magnesium oxide, aluminum oxide, crystalline silica, amorphous silica, and the like are used. desirable. In addition, it is more preferable to use a nano filler in order to improve the fluidity during the heat of the film.
무기 충전재의 배합량은 접착제 조성물 전량 100 질량부에 대하여 1 내지 100 질량부가 바람직하다. 이러한 배합량이 1 질량부 미만이면, 첨가 효과가 충분히 얻어지지 않는 경향이 있고, 100 질량부를 초과하면, 접착제층의 저장 탄성률의 상승, 접착성의 저하, 공극 잔존에 의한 전기 특성의 저하 등의 문제가 발생하기 쉬워지는 경향이 있다.As for the compounding quantity of an inorganic filler, 1-100 mass parts is preferable with respect to 100 mass parts of adhesive compositions whole quantity. If such a blending amount is less than 1 part by mass, the addition effect tends not to be sufficiently obtained. If the blending amount exceeds 100 parts by mass, problems such as an increase in storage elastic modulus of the adhesive layer, a decrease in adhesiveness, and a decrease in electrical properties due to void remaining are present. It tends to be easy to occur.
또한, 본 발명에 따른 접착제 조성물에는 이종 재료 간의 계면 결합을 좋게 하기 위해 각종 커플링제를 첨가할 수 있다. 커플링제로서는, 예를 들면 실란계, 티탄계, 알루미늄계 등을 들 수 있다.In addition, various coupling agents may be added to the adhesive composition according to the present invention in order to improve interfacial bonding between dissimilar materials. As a coupling agent, a silane type, titanium type, aluminum type etc. are mentioned, for example.
상기 실란계 커플링제로서는, 예를 들면 γ-메타크릴옥시프로필트리메톡시실란, γ-메타크릴옥시프로필메틸디메톡시실란, γ-머캅토프로필트리메톡시실란, γ-머캅토프로필트리에톡시실란, 3-아미노프로필메틸디에톡시실란, 3-우레이도프로필트리에톡시실란, 3-우레이도프로필트리메톡시실란 등을 들 수 있다. 이들은 단독으로 또는 2종 이상을 조합하여 사용할 수 있다. 또한, 닛본 유니카 가부시끼가이샤 제조 A-189, A-1160 등의 시판품을 이용할 수도 있다.As said silane coupling agent, for example, (gamma) -methacryloxypropyl trimethoxysilane, (gamma) -methacryloxypropyl methyldimethoxysilane, (gamma)-mercaptopropyl trimethoxysilane, (gamma)-mercaptopropyl triethoxy Silane, 3-aminopropylmethyl diethoxysilane, 3-ureidopropyltriethoxysilane, 3-ureidopropyltrimethoxysilane, etc. are mentioned. These can be used individually or in combination of 2 or more types. Moreover, you may use commercial items, such as A-189 and A-1160 by Nippon Unika Corporation.
상기 커플링제의 배합량은 첨가 효과나 내열성 및 비용 면에서, (A) 성분 100 질량부에 대하여 0.01 내지 10 질량부로 하는 것이 바람직하다.It is preferable that the compounding quantity of the said coupling agent shall be 0.01-10 mass parts with respect to 100 mass parts of (A) component from an additive effect, heat resistance, and a cost point.
또한, 본 발명에 따른 접착제 조성물에는 이온성 불순물을 흡착하여 흡습시의 절연 신뢰성을 향상시킬 목적으로 이온 포착제를 더 첨가할 수 있다. 이러한 이온 포착제로서는, 예를 들면 트리아진티올 화합물, 비스페놀계 환원제 등의, 구리가 이온화하여 용출되는 것을 방지하기 위해 동해 방지제로서 알려진 화합물, 지르코늄계, 안티몬 비스무스계 마그네슘 알루미늄 화합물 등의 무기 이온 흡착제 등을 들 수 있다.In addition, an ion scavenger may be further added to the adhesive composition according to the present invention for the purpose of adsorbing ionic impurities to improve insulation reliability during moisture absorption. As such an ion trapping agent, for example, a triazine thiol compound, an inorganic ion adsorbent such as a zirconium-based, antimony bismuth-based magnesium aluminum compound, etc., as a compound known as an anti-inflammatory agent for preventing copper from ionizing and eluting Etc. can be mentioned.
상기 이온 포착제의 배합량은 첨가 효과나 내열성 및 비용 등의 면에서, (A) 성분 100 질량부에 대하여 0.1 내지 10 질량부로 하는 것이 바람직하다.It is preferable that the compounding quantity of the said ion trapping agent shall be 0.1-10 mass parts with respect to 100 mass parts of (A) component from a viewpoint of addition effect, heat resistance, cost, etc.
또한, 본 발명의 효과를 저해하지 않는 범위 내에서 상기 접착제 조성물에 도전 입자를 함유시켜 이방 도전성 접착 필름(ACF)으로 할 수 있다.Moreover, it can be set as an anisotropically conductive adhesive film (ACF) by containing electroconductive particle in the said adhesive composition in the range which does not impair the effect of this invention.
접착제층 (2)는 상술한 본 발명에 따른 접착제 조성물을 용매에 용해 또는 분산하여 바니시로 하고, 이 바니시를 지지 기재 (3) 상에 도포하고, 가열에 의해 용매를 제거함으로써 형성할 수 있다. 또는, 상기 바니시를 보호 필름 (1) 상에 도포하고, 가열에 의해 용매를 제거함으로써 형성할 수 있다.The
사용하는 용매는 특별히 한정되지 않지만, 접착제층 형성시의 휘발성이나 바니시 제조시의 용해성 등을 고려하여 결정하는 것이 바람직하다. 구체적으로는, 예를 들면 메탄올, 에탄올, 2-메톡시에탄올, 2-에톡시에탄올, 2-부톡시에탄올, 메틸에틸케톤, 아세톤, 메틸이소부틸케톤, 톨루엔, 크실렌 등의 비교적 저비점의 용매는 접착제층 형성시에 접착제층의 경화가 진행되기 어려운 점에서 바람직하다. 또한, 도공성을 향상시키는 등의 목적에서는, 예를 들면 디메틸아세트아미드, 디메틸포름아미드, N-메틸피롤리돈, 시클로헥사논 등의 비교적 고비점의 용매를 사용하는 것이 바람직하다. 이들 용매는 1종을 단독으로 또는 2종 이상을 조합하여 사용할 수 있다.Although the solvent to be used is not specifically limited, It is preferable to determine in consideration of the volatility at the time of adhesive bond layer formation, the solubility at the time of varnish manufacture, etc. Specifically, for example, relatively low boiling solvents such as methanol, ethanol, 2-methoxyethanol, 2-ethoxyethanol, 2-butoxyethanol, methyl ethyl ketone, acetone, methyl isobutyl ketone, toluene and xylene It is preferable at the point which hardening of an adhesive bond layer does not advance at the time of adhesive bond layer formation. Moreover, for the purpose of improving coatability, it is preferable to use relatively high boiling point solvents, such as dimethylacetamide, dimethylformamide, N-methylpyrrolidone, and cyclohexanone, for example. These solvent can be used individually by 1 type or in combination of 2 or more type.
지지 기재 (3)으로서는, 예를 들면 폴리테트라플루오로에틸렌 필름, 폴리에틸렌 필름, 폴리프로필렌 필름, 폴리메틸펜텐 필름, 폴리에틸렌테레프탈레이트 등의 플라스틱 필름 등을 들 수 있다. 시판되는 것으로서, 예를 들면 데이진 듀퐁 필름 가부시끼가이샤 제조의 「A-31」 등의 폴리에틸렌테레프탈레이트 필름 등을 들 수 있다. 또한, 지지 기재 (3)은 상기 재료로부터 선택되는 2종 이상이 혼합된 것, 또는 상기 필름이 복층화된 것일 수도 있다.As the
지지 기재 (3)의 두께는 특별히 제한은 없지만, 5 내지 250 μm가 바람직하다. 두께가 5 μm보다 얇으면, 반도체 웨이퍼의 연삭(백 그라인드)시에 지지 기재가 끊길 가능성이 있고, 250 μm보다 두꺼우면 경제적이지 않게 되기 때문에 바람직하지 않다.Although the thickness of the
지지 기재 (3)은 광 투과성이 높은 것이 바람직하고, 구체적으로는 500 내지 800 nm의 파장 영역에서의 최소 광투과율이 10% 이상인 것이 바람직하다.It is preferable that the
지지 기재 (3)으로서는 점착제층을 지지 기재 상에 1층 설치한 것을 사용할 수 있다. 설치하는 점착제로서는, 주 단량체로서 2-에틸헥실아크릴레이트와 메틸메타크릴레이트를 이용하고, 관능기 단량체로서 히드록시에틸아크릴레이트와 아크릴산을 이용하여, 용액 중합법에 의해 아크릴 공중합체를 합성한 것 등을 사용할 수 있다.As the
상기 바니시를 지지 기재 상에 도포하는 방법으로서는, 나이프 코팅법, 롤 코팅법, 스프레이 코팅법, 그라비아 코팅법, 바 코팅법, 커튼 코팅법 등, 일반적으로 주지된 방법을 들 수 있다.As a method of apply | coating the said varnish on a support base material, generally well-known methods, such as the knife coating method, the roll coating method, the spray coating method, the gravure coating method, the bar coating method, the curtain coating method, are mentioned.
접착제층 (2)의 두께는 특별히 제한은 없지만, 3 내지 200 μm가 바람직하다. 두께가 3 μm보다 작으면, 응력 완화 효과가 부족해지는 경향이 있고, 200 μm보다 두꺼우면 경제적이지 않게 될 뿐더러, 반도체 장치의 소형화의 요구에 부응하는 것이 곤란해진다.Although the thickness of the
보호 필름 (1)로서는, 예를 들면 폴리에틸렌테레프탈레이트 등의 내열성 및 내용매성을 갖는 중합체 필름을 사용할 수 있다. 시판되는 것으로서, 예를 들면 데이진 듀퐁 필름 가부시끼가이샤 제조의 「A-31」 등의 폴리에틸렌테레프탈레이트 필름 등을 들 수 있다. 보호 필름은 두께가 10 내지 100 μm인 것이 바람직하고, 30 내지 75 μm인 것이 보다 바람직하고, 35 내지 50 μm인 것이 특히 바람직하다. 이 두께가 10 μm 미만이면 도공시 보호 필름이 찢어지는 경향이 있고, 100 μm를 초과하면 염가성이 떨어지는 경향이 있다.As the
상술한 회로 부재 접속용 접착제 시트 (10)은 서로 대향하여 땜납 접합되는 회로 전극을 갖는 회로 부재와 반도체 소자 사이 또는 반도체 소자끼리의 사이에 개재시켜, 회로 부재와 반도체 소자 또는 반도체 소자끼리를 접착하기 위해 사용할 수 있다. 이 경우, 회로 부재와 반도체 소자 또는 반도체 소자끼리를 열 압착함으로써, 공극 발생을 억제하면서 충분한 접착력으로 접착할 수 있다. 이에 따라, 접속 신뢰성이 우수한 접속체를 얻을 수 있다.The above-mentioned adhesive sheet for
다음으로, 회로 부재 접속용 접착제 시트 (10)을 이용하여 반도체 장치를 제조하는 방법에 대하여 설명한다.Next, the method to manufacture a semiconductor device using the
도 2 내지 도 6은 본 발명에 따른 반도체 장치의 제조 방법의 바람직한 일 실시 형태를 설명하기 위한 모식 단면도이다. 본 실시 형태의 반도체 장치의 제조 방법은2 to 6 are schematic cross-sectional views for describing one preferred embodiment of the method for manufacturing a semiconductor device according to the present invention. The manufacturing method of the semiconductor device of this embodiment is
(a) 주면의 한쪽에 복수의 회로 전극을 갖는 반도체 웨이퍼를 준비하고, 상기 반도체 웨이퍼의 회로 전극이 설치되어 있는 측에, 상술한 본 발명에 따른 회로 부재 접속용 접착제 시트의 접착제층을 첩부하는 공정과,(a) A semiconductor wafer having a plurality of circuit electrodes is prepared on one of the main surfaces, and the adhesive layer of the adhesive sheet for a circuit member connection according to the present invention described above is affixed to the side where the circuit electrodes of the semiconductor wafer are provided. Fair,
(b) 반도체 웨이퍼의 회로 전극이 설치되어 있는 측과는 반대측을 연삭하여 반도체 웨이퍼를 박화하는 공정과,(b) grinding the side opposite to the side where the circuit electrode of the semiconductor wafer is provided to thin the semiconductor wafer;
(c) 접착제층에 방사선을 조사하는 공정과,(c) irradiating the adhesive layer with radiation;
(d) 박화한 반도체 웨이퍼 및 방사선을 조사한 접착제층을 다이싱하여 필름상 접착제 부착 반도체 소자로 개편화하는 공정과,(d) dicing the thinned semiconductor wafer and the irradiated adhesive layer into a semiconductor element with a film adhesive, and
(e) 필름상 접착제 부착 반도체 소자와 반도체 소자 탑재용 지지 부재를 필름상 접착제 부착 반도체 소자의 필름상 접착제를 통해 접착하는 공정(e) Process of adhering the semiconductor element with a film adhesive and the support member for semiconductor element mounting through the film adhesive of the semiconductor element with a film adhesive
을 구비한다. 이하, 도면을 참조하면서 각 공정에 대하여 설명한다.Respectively. Hereinafter, each process is demonstrated, referring drawings.
(a) 공정(a) process
우선, 접착제 시트 (10)을 소정의 장치에 배치하고, 보호 필름 (1)을 박리한다. 계속해서, 주면의 한쪽에 복수의 회로 전극 (20)을 갖는 반도체 웨이퍼 (A)를 준비하고, 반도체 웨이퍼 (A)의 회로 전극이 설치되어 있는 측에 접착제층 (2)를 첩부하여, 지지 기재 (3)/접착제층 (2)/반도체 웨이퍼 (A)가 적층된 적층체를 얻는다(도 2를 참조). 회로 전극 (20)에는 땜납 접합용의 땜납 범프를 설치할 수도 있다. 또한, 회로 전극 (20)에 땜납 범프를 설치하지 않고, 반도체 소자 탑재용 지지 부재의 회로 전극에 땜납 범프를 설치할 수도 있다.First, the
(b) 공정(b) process
다음으로, 도 3의 (a)에 도시되는 바와 같이, 반도체 웨이퍼 (A)의 회로 전극 (20)이 설치되어 있는 측과는 반대측을 그라인더 (4)에 의해 연삭하고, 반도체 웨이퍼를 박화한다. 반도체 웨이퍼의 두께는, 예를 들면 10 μm 내지 300 μm로 할 수 있다. 반도체 장치의 소형화, 박형화의 관점에서, 반도체 웨이퍼의 두께를 20 μm 내지 100 μm로 하는 것이 바람직하다.Next, as shown to Fig.3 (a), the
(c) 공정(c) process
도 3의 (b)에 도시되는 바와 같이, 접착제층 (2)에 지지 기재 (3)측으로부터 방사선을 조사함으로써 접착제층 (2)를 경화시켜, 접착제층 (2)와 지지 기재 (3) 사이의 접착력을 저하시킨다. 여기서, 사용되는 방사선으로서는, 예를 들면 자외선, 전자선, 적외선 등을 들 수 있다. 본 실시 형태에서는 파장 300 내지 800 nm의 방사선을 이용하는 것이 바람직하고, 그 조사 조건으로서는, 조도: 15 내지 100 mW/cm2로, 상기 아크릴 단량체 등의 (C) 성분이 중합하는 정도의 조사량으로 조사하는 것이 바람직하다.As shown in FIG.3 (b), the
(d) 공정(d) process
다음으로, 도 4의 (a)에 도시되는 바와 같이, 적층체의 반도체 (A)에 다이싱 테이프 (5)를 첩부하고, 이것을 소정의 장치에 배치하여 지지 기재 (3)을 박리한다. 이 때, 접착제층 (2)에 방사선이 조사되어 있음으로써, 지지 기재 (3)을 용이하게 박리할 수 있다. 지지 기재 (3)의 박리 후, 도 4의 (b)에 도시되는 바와 같이, 반도체 웨이퍼 (A) 및 접착제층 (2)를 다이싱 소우 (6)에 의해 다이싱한다. 이렇게 해서 반도체 웨이퍼 (A)는 복수의 반도체 소자 (A')로 분할되고, 접착제층 (2)는 복수의 필름상 접착제 (2a)로 분할된다.Next, as shown to Fig.4 (a), the dicing
계속해서, 다이싱 테이프 (5)를 익스팬드(확장)함으로써, 상기 다이싱에 의해 얻어진 각 반도체 소자 (A')를 서로 이격시키면서, 다이싱 테이프 (5)측으로부터 니들로 밀어 올려진 반도체 소자 (A') 및 필름상 접착제 (2a)를 포함하는 필름상 접착제 부착 반도체 소자 (12)를 흡인 콜릿 (7)로 흡인하여 픽업한다.Subsequently, by expanding (extending) the
(e) 공정(e) process
다음으로, 도 6에 도시되는 바와 같이, 필름상 접착제 (2a)가 부착된 반도체 소자 (A')의 회로 전극 (20)과, 반도체 소자 탑재용 지지 부재 (8)의 회로 전극 (22)를 위치 정합하고, 필름상 접착제 부착 반도체 소자 (12)와 반도체 소자 탑재용 지지 부재 (8)을 열 압착한다. 이 열 압착에 의해, 회로 전극 (20)과 회로 전극 (22)가 전기적으로 접속됨과 동시에, 반도체 소자 (A')와 반도체 소자 탑재용 지지 부재 (8) 사이에 필름상 접착제 (2a)의 경화물이 형성된다.Next, as shown in FIG. 6, the
또한, 회로 전극 (20) 또는 회로 전극 (22)에 땜납 범프가 설치되어 있는 경우, 열 압착에 의해, 회로 전극 (20)과 회로 전극 (22)가 땜납 접합에 의해 전기적이고 기계적으로 접속된다.In addition, when solder bump is provided in the
열 압착시의 온도는 땜납 접합의 관점에서 200 ℃ 이상인 것이 바람직하고, 220 ℃ 내지 260 ℃인 것이 보다 바람직하다. 열 압착 시간은 1 내지 20초로 할 수 있다. 열 압착의 압력은 0.1 내지 5 MPa로 할 수 있다.It is preferable that it is 200 degreeC or more, and, as for the temperature at the time of thermocompression bonding, it is 220 degreeC-260 degreeC. The thermal compression time can be 1 to 20 seconds. The pressure of thermocompression bonding can be 0.1-5 Mpa.
이상의 공정을 거쳐 반도체 장치 (30)이 얻어진다. 본 실시 형태의 반도체 장치의 제조 방법에서는 본 발명에 따른 회로 부재 접속용 접착제 시트를 이용함으로써, 상기 (a) 공정에서는 박리나 공극의 발생을 충분히 억제할 수 있고, 상기 (b) 공정에서는 웨이퍼를 파손이나 균열의 발생을 충분히 방지하면서 연삭할 수 있고, 상기 (e) 공정에서는 공극의 발생을 충분히 억제하면서 반도체 소자와 반도체 소자 탑재용 지지 부재를 양호하게 접착할 수 있다. 이에 따라, 반도체 장치 (30)은 접속 신뢰성이 우수한 것이 될 수 있다. 또한, 본 실시 형태의 반도체 장치의 제조 방법에 따르면, 그와 같은 반도체 장치를 수율 좋게 제조할 수 있다.Through the above steps, the
<실시예><Examples>
이하, 실시예 및 비교예를 들어 본 발명을 보다 구체적으로 설명한다. 단, 본 발명은 이들 실시예로 한정되는 것은 아니다.Hereinafter, an Example and a comparative example are given and this invention is demonstrated more concretely. However, this invention is not limited to these Examples.
(실시예 1)(Example 1)
열가소성 수지로서 페녹시 수지 「FX293」(도토 가세이 가부시끼가이샤 제조, 제품명) 100 질량부, 에폭시 수지로서 「1032H60」(재팬 에폭시 레진 가부시끼가이샤 제조, 제품명) 80 질량부 및 「YL-980」(재팬 에폭시 레진 가부시끼가이샤 제조, 제품명) 60 질량부, 방사선 중합성 화합물로서 「FA-513AS」(히타치 가세이 고교 가부시끼가이샤 제조, 제품명) 80 질량부, 광개시제로서 「Irg-184」(시바 스페셜리티 케미컬즈(주) 제조, 제품명) 4.0 질량부, 마이크로 캡슐형 경화 촉진제로서 「HX-3941HP」(아사히 가세이 케미컬즈 가부시끼가이샤 제조, 제품명) 160 질량부, 및 실란 커플링제로서 「SH-6040」(도레이 다우코닝 실리콘 제조, 제품명) 4 질량부를 혼합한 혼합물을, 톨루엔과 아세트산에틸의 혼합 용매 중에 용해시켜 접착제 조성물의 바니시를 얻었다. 얻어진 바니시를 계량한 후, 여기에 충전재로서 실리카 입자 「SE-2050」(가부시끼가이샤 애드마테크스사 제조, 제품명, 평균 입경 0.5 μm)을, 바니시 중의 「FX293」 100 질량부에 대하여 400 질량부의 비율로 가하고, 교반하여 분산시켰다. 얻어진 분산물을, 지지 기재로서의 세퍼레이터 필름(PET 필름, 두께 38 μm) 상에 롤 코터를 이용하여 도포한 후, 70 ℃의 오븐에서 10분간 건조시켰다. 이렇게 해서 지지 기재 상에 두께 30 μm의 접착제층이 형성되어 이루어지는 회로 부재 접속용 접착제 시트를 얻었다.100 parts by mass of phenoxy resin `` FX293 '' (manufactured by Toto Kasei Co., Ltd., product name) as a thermoplastic resin, 80 parts by mass of `` 1032H60 '' (Japan epoxy resin Co., Ltd. product, product name) as an epoxy resin and `` YL-980 '' ( It is "Irg-184" (Shiba specialty chemical) as 80 mass parts, "FA-513AS" (Hitachi Kasei Kogyo Co., Ltd., product name) as 60 mass parts, the radiation polymerizable compound (Manufactured product, product name) "H-6040" as 4.0 mass parts, microcapsule type hardening accelerator "HX-3941HP" (Asahi Kasei Chemicals Co., Ltd. product name) 160 mass parts, and a silane coupling agent Toray Dow Corning Silicone Co., Ltd. product name) 4 mass parts of the mixture was melt | dissolved in the mixed solvent of toluene and ethyl acetate, and the varnish of an adhesive composition was obtained. After weighing the obtained varnish, 400 parts by mass of silica particles "SE-2050" (manufactured by Adomatecs Co., Ltd., product name, average particle diameter: 0.5 µm) was added to 100 parts by mass of "FX293" in the varnish. It was added at a ratio and stirred to disperse. After apply | coating the obtained dispersion on the separator film (PET film, 38 micrometers in thickness) as a support base material using a roll coater, it dried for 10 minutes in 70 degreeC oven. In this way, the adhesive sheet for circuit member connections in which the adhesive bond layer of thickness 30micrometer is formed on the support base material was obtained.
(실시예 2)(Example 2)
「YL-980」 대신에 「EX-1020」(오사카 가스 케미칼 가부시끼가이샤 제조, 제품명)을 60 질량부 배합한 것 이외에는 실시예 1과 동일하게 하여 회로 부재 접속용 접착제 시트를 얻었다.The adhesive agent sheet for a circuit member connection was obtained like Example 1 except having mix | blended 60 mass parts of "EX-1020" (Osaka Gas Chemical Co., Ltd. product name) instead of "YL-980."
(실시예 3)(Example 3)
「FA-513AS」 대신에 「A-DPH」(신나카무라 고교 가가꾸 가부시끼가이샤 제조, 제품명)를 80 질량부 배합한 것 이외에는 실시예 1과 동일하게 하여 회로 부재 접속용 접착제 시트를 얻었다.The adhesive sheet for connection to a circuit member was obtained like Example 1 except having mix | blended 80 mass parts of "A-DPH" (made by Shin-Nakamura Kogaku Co., Ltd., product name) instead of "FA-513AS."
(실시예 4)(Example 4)
「FX293」 대신에 「YP-70」(도토 가세이 가부시끼가이샤 제조, 제품명)을 100 질량부 배합한 것 이외에는 실시예 1과 동일하게 하여 회로 부재 접속용 접착제 시트를 얻었다.The adhesive sheet for a circuit member connection was obtained like Example 1 except having mix | blended 100 mass parts of "YP-70" (Toto Kasei Co., Ltd. product name) instead of "FX293".
(실시예 5)(Example 5)
메틸올 화합물인 「DML-POP」(혼슈 가가꾸 고교 가부시끼가이샤, 제품명) 20 질량부를 더 배합한 것 이외에는 실시예 3과 동일하게 하여 회로 부재 접속용 접착제 시트를 얻었다.The adhesive agent sheet for a circuit member connection was obtained like Example 3 except having further mix | blended 20 mass parts of "DML-POP" which is a methylol compound (Honshu Chemical Industries, Ltd., product name).
(실시예 6)(Example 6)
우선, 백 그라인드(BG) 테이프 A를 이하의 절차로 제조하였다. 주 단량체로서 2-에틸헥실아크릴레이트와 메틸메타크릴레이트를, 관능기 단량체로서 히드록시에틸아크릴레이트와 아크릴산을 이용하여, 용액 중합법에 의해 아크릴 공중합체를 합성하였다. 얻어진 아크릴 공중합체의 중량 평균 분자량은 40만, 유리 전이점은 -38 ℃였다. 이어서, 아크릴 공중합체 100 질량부에 대하여 다관능 이소시아네이트 가교제(닛본 폴리우레탄 고교 가부시끼가이샤 제조, 상품명: 코로네이트 HL) 10 질량부를 배합하여 점착제 바니시를 제조하고, 폴리올레핀 필름(오카모토 가부시끼가이샤 제조, 상품명: WNH-2110, 두께 100 μm) 상에 건조시의 점착제층의 두께가 10 μm가 되도록 도공 건조하였다. 또한, 실리콘계 이형제를 도포한 2축 연신 폴리에스테르 필름(데이진 듀퐁 필름 가부시끼가이샤 제조, 상품명: A3171, 두께 25 μm)을 점착제면에 라미네이트하였다. 이 점착제층 부착 필름을 실온에서 1주일간 방치하여 충분히 에이징을 행하였다. 에이징 후의 점착제층 부착 필름으로부터 2축 연신 폴리에스테르 필름을 박리한 것을 BG 테이프 A로 하였다.First, back grind (BG) tape A was produced by the following procedure. The acrylic copolymer was synthesize | combined by the solution polymerization method using 2-ethylhexyl acrylate and methyl methacrylate as a main monomer, and hydroxyethyl acrylate and acrylic acid as a functional group monomer. The weight average molecular weight of the obtained acrylic copolymer was 400,000, and the glass transition point was -38 degreeC. Subsequently, 10 mass parts of polyfunctional isocyanate crosslinking agents (The Nippon Polyurethane Co., Ltd. make, brand name: coronate HL) are mix | blended with respect to 100 mass parts of acrylic copolymers, an adhesive varnish is produced, and a polyolefin film (Okamoto Chemical Co., Ltd. make, Product name: WNH-2110, 100 micrometers in thickness) It coat-dried so that the thickness of the adhesive layer at the time of drying might be set to 10 micrometers. In addition, the biaxially stretched polyester film (Tejin DuPont Film Co., Ltd. make, brand name: A3171, thickness 25 micrometers) which apply | coated the silicone mold release agent was laminated on the adhesive surface. The film with the pressure-sensitive adhesive layer was left to stand at room temperature for 1 week to sufficiently age. What peeled the biaxially stretched polyester film from the film with an adhesive layer after aging was set to BG tape A.
열가소성 수지로서 페녹시 수지 「FX293」(도토 가세이 가부시끼가이샤 제조, 제품명) 100 질량부, 에폭시 수지로서 「1032H60」(재팬 에폭시 레진 가부시끼가이샤 제조, 제품명) 80 질량부 및 「YL-980」(재팬 에폭시 레진 가부시끼가이샤 제조, 제품명) 60 질량부, 방사선 중합성 화합물로서 「FA-513AS」(히타치 가세이 고교 가부시끼가이샤 제조, 제품명) 80 질량부, 광개시제로서 「Irg-184」(시바 스페셜리티 케미컬즈(주) 제조, 제품명) 4.0 질량부, 마이크로 캡슐형 경화 촉진제로서 「HX-3941HP」(아사히 가세이 케미컬즈 가부시끼가이샤 제조, 제품명) 160 질량부, 및 실란 커플링제로서 「SH-6040」(도레이 다우코닝 실리콘 제조, 제품명) 4 질량부를 혼합한 혼합물을, 톨루엔과 아세트산에틸의 혼합 용매 중에 용해시켜 접착제 조성물의 바니시를 얻었다. 얻어진 바니시를 계량한 후, 여기에 충전재로서 실리카 입자 「SE-2050」(가부시끼가이샤 애드마테크스사 제조, 제품명, 평균 입경 0.5 μm)을, 바니시 중의 「FX293」 100 질량부에 대하여 400 질량부의 비율로 가하고, 교반하여 분산시켰다. 얻어진 분산물을, 보호 필름인 표면 이형 처리 폴리에틸렌테레프탈레이트(데이진 듀퐁 필름 가부시끼가이샤 제조, 테이진 테토론 필름: A-31, 두께 50 μm) 상에 건조 후의 두께가 30 μm가 되도록 도포하고, 70 ℃에서 10분간 가열 건조하여 접착제층을 형성하였다. 이어서, 상기 접착제층 상에, BG 테이프 A의 점착제층이 접촉하도록 상기 BG 테이프 A를 라미네이트함으로써, 보호 필름(표면 이형 처리 폴리에틸렌테레프탈레이트), 접착제층, BG 테이프 A를 포함하는 회로 부재 접속용 접착제 시트를 얻었다.100 parts by mass of phenoxy resin `` FX293 '' (manufactured by Toto Kasei Co., Ltd., product name) as a thermoplastic resin, 80 parts by mass of `` 1032H60 '' (Japan epoxy resin Co., Ltd. product, product name) as an epoxy resin and `` YL-980 '' ( It is "Irg-184" (Shiba specialty chemical) as 80 mass parts, "FA-513AS" (Hitachi Kasei Kogyo Co., Ltd., product name) as 60 mass parts, the radiation polymerizable compound (Manufactured product, product name) "H-6040" as 4.0 mass parts, microcapsule type hardening accelerator "HX-3941HP" (Asahi Kasei Chemicals Co., Ltd. product name) 160 mass parts, and a silane coupling agent Toray Dow Corning Silicone Co., Ltd. product name) 4 mass parts of the mixture was melt | dissolved in the mixed solvent of toluene and ethyl acetate, and the varnish of an adhesive composition was obtained. After weighing the obtained varnish, 400 parts by mass of silica particles "SE-2050" (manufactured by Adomatecs Co., Ltd., product name, average particle diameter: 0.5 µm) was added to 100 parts by mass of "FX293" in the varnish. It was added at a ratio and stirred to disperse. The obtained dispersion was applied onto the surface release treatment polyethylene terephthalate (Taijin DuPont Film Co., Ltd., Teijin Tetoron Film: A-31, 50 μm in thickness) which is a protective film so as to have a thickness of 30 μm after drying. , And dried at 70 ° C. for 10 minutes to form an adhesive layer. Subsequently, the said BG tape A is laminated so that the adhesive layer of BG tape A may contact on the said adhesive bond layer, and the adhesive for circuit member connection containing a protective film (surface release process polyethylene terephthalate), an adhesive bond layer, and BG tape A is carried out. A sheet was obtained.
(비교예 1)(Comparative Example 1)
「FA-513AS」 및 「Irg-184」를 배합하지 않은 것 이외에는 실시예 1과 동일하게 하여 회로 부재 접속용 접착제 시트를 얻었다.The adhesive agent sheet for a circuit member connection was obtained like Example 1 except not having mix | blended "FA-513AS" and "Irg-184".
(비교예 2)(Comparative Example 2)
「FA-513AS」 및 「Irg-184」를 배합하지 않은 것 이외에는 실시예 4와 동일하게 하여 회로 부재 접속용 접착제 시트를 얻었다.The adhesive agent sheet for a circuit member connection was obtained like Example 4 except not having mix | blended "FA-513AS" and "Irg-184".
(비교예 3)(Comparative Example 3)
「HX-3941HP」를 배합하지 않은 것 이외에는 실시예 1과 동일하게 하여 회로 부재 접속용 접착제 시트를 얻었다.The adhesive agent sheet for a circuit member connection was obtained like Example 1 except not having mix | blended "HX-3941HP."
(비교예 4)(Comparative Example 4)
「HX-3941HP」 대신에 「2MAOK」(시코쿠 가세이 고교 가부시끼가이샤 제조, 제품명)를 14 질량부 배합한 것 이외에는 실시예 1과 동일하게 하여 회로 부재 접속용 접착제 시트를 얻었다.An adhesive sheet for connecting a circuit member was obtained in the same manner as in Example 1 except that 14 parts by mass of "2MAOK" (manufactured by Shikoku Kasei Kogyo Co., Ltd., product name) was added instead of "HX-3941HP."
(비교예 5)(Comparative Example 5)
「HX-3941HP」를 배합하지 않은 것 이외에는 실시예 6과 동일하게 하여 회로 부재 접속용 접착제 시트를 얻었다.The adhesive agent sheet for a circuit member connection was obtained like Example 6 except not having mix | blended "HX-3941HP."
[회로 부재 접속용 접착제 시트의 평가][Evaluation of Adhesive Sheet for Circuit Member Connection]
상기에서 얻어진 회로 부재 접속용 접착제 시트에 대하여, 하기의 시험 절차에 따라서 웨이퍼 첩부성, 웨이퍼 이면 연삭성 및 매립성을 평가하였다. 결과를 표 2에 나타낸다.About the adhesive sheet for circuit member connection obtained above, wafer sticking property, wafer back surface grinding property, and embedding property were evaluated in accordance with the following test procedure. The results are shown in Table 2.
<웨이퍼 첩부성><Wafer adhesion>
지지 대상에 얹은 실리콘 웨이퍼(6 인치 직경, 두께 625 μm)의 회로 전극이 설치되어 있는 면에, 회로 부재 접속용 접착제 시트를, 접착제층을 실리콘 웨이퍼측으로 하여 라미네이트 조건(온도 80 ℃, 선압 0.5 내지 2 kgf/cm, 이송 속도 0.5 내지 5 m/분)으로 가압함으로써 적층하였다. 이 때의 접착제층의 첩부 상태를 육안 및 현미경 관찰로 시찰하고, 하기의 기준에 기초하여 웨이퍼 첩부성을 평가하였다.On the surface where the circuit electrode of the silicon wafer (6 inch diameter, thickness 625 micrometers) mounted on the support object was provided, the adhesive sheet for a circuit member connection is made into the silicon wafer side, and lamination conditions (temperature 80 degreeC, linear pressure 0.5 thru | or 2 kgf / cm, a feed rate of 0.5 to 5 m / min) to laminate. The sticking state of the adhesive bond layer at this time was examined by visual observation and microscope observation, and the wafer sticking property was evaluated based on the following reference | standard.
A: 박리, 공극이 관찰되지 않음.A: No peeling or voids was observed.
C: 박리, 공극이 관찰됨.C: Peeling and a void are observed.
<웨이퍼 이면 연삭성><Wafer backside grinding property>
상기와 동일하게 하여 회로 부재 접속용 접착제 시트와 실리콘 웨이퍼(두께 625 μm)의 적층체를 제조하고, 이것을 백그라인더에 배치하고, 두께가 280 μm가 될 때까지 실리콘 웨이퍼의 이면을 연삭(백 그라인드)하였다. 연삭한 웨이퍼를 육안 및 현미경 관찰로 시찰하고, 하기의 기준에 기초하여 웨이퍼 이면 연삭성을 평가하였다.In the same manner as described above, a laminate of an adhesive sheet for connecting circuit members and a silicon wafer (thickness 625 μm) was produced, placed on a back grinder, and ground (back grind) of the back surface of the silicon wafer until the thickness became 280 μm. ). The ground wafer was inspected by visual observation and microscopic observation, and wafer back surface grindingability was evaluated based on the following criteria.
A: 웨이퍼의 파손 및 미세균열의 발생이 없음.A: There is no breakage of the wafer and occurrence of microcracks.
C: 웨이퍼의 파손 또는 미세균열의 발생이 있음.C: There is a breakage of the wafer or occurrence of microcracks.
<매립성>Landfill
금 와이어 범프(레벨링 완료, 범프 높이 30 μm, 184 범프) 부착 칩(10 mm각(角), 두께 280 μm)을, 범프면을 위로 향하게 하여 가압착 장치의 스테이지 상에 두었다. 다음으로, 회로 부재 접속용 접착제 시트를 지지 기재째로 11 mm각으로 절단하고, 이것을 접착층측이 범프면을 향하도록 하여 칩에 씌우고, 추가로 실리콘제 열 전도성 커버 필름을 얹어서 80 ℃, 1 MPa로 가열, 가압을 행하였다.Chips with gold wire bumps (leveling completed,
가열 가압 후, 접착제층으로부터 지지 기재를 박리하고, 접착제층에 대하여 자외선을 이용하여 조도 15 mW/cm2로 500 mJ의 노광을 행하여 접착제 부착 칩을 얻었다. 다음으로, 얻어진 접착제 부착 칩을 Ni/Au 도금 Cu 회로 인쇄 기판과 위치 정합하고, 이어서 250 ℃, 5 MPa, 10초의 가열, 가압을 행하였다. 이렇게 해서 얻어진 반도체 장치에 대하여, 공극 상황을 초음파 현미경으로 시찰하고, 하기의 기준에 기초하여 매립성을 평가하였다.After heating and pressing, the support base material was peeled off from the adhesive bond layer, and 500 mJ exposure was performed with the illumination intensity of 15 mW / cm <2> using ultraviolet-ray with respect to an adhesive bond layer, and the chip | tip with an adhesive agent was obtained. Next, the obtained adhesive bond chip was matched with the Ni / Au plating Cu circuit printed board, and 250 degreeC, 5 MPa, and 10 second were heated and pressurized next. Thus, about the semiconductor device obtained, the space | gap situation was examined by the ultrasonic microscope and embedding property was evaluated based on the following reference | standard.
A: 공극이 거의 없고, 공극이 매립 면적의 10% 미만임.A: There are almost no voids, and the voids are less than 10% of the buried area.
C: 공극이 많이 존재하고, 공극이 매립 면적의 10% 이상임.C: Many voids exist and the void is 10% or more of the buried area.
<지지 기재 박리성><Support base material peelability>
상기 웨이퍼 이면 연삭성의 평가 샘플을, 조도: 20 mW/cm2, 노광량: 500 mJ의 조건으로 자외선 조사하고, 그 후 회로 부재 접속용 접착제 시트의 지지 기재(또는 BG 테이프)를 5 mm/초의 속도로 박리하였다. 박리한 후의 지지 기재(또는 BG 테이프)와 회로 부재 접속용 접착제 부착 웨이퍼의 표면을 육안 및 현미경 관찰로 시찰하고, 하기 기준에 기초하여 지지 기재 박리성을 평가하였다.The evaluation sample of the wafer back surface grindingability was irradiated with ultraviolet light under the condition of illuminance: 20 mW / cm 2 and exposure amount: 500 mJ, and then the supporting substrate (or BG tape) of the adhesive sheet for connecting circuit members was 5 mm / sec. Peeled off. The surface of the support base material (or BG tape) after peeling, and the wafer with an adhesive agent for circuit member connection was examined by visual observation and microscope observation, and the support base material peelability was evaluated based on the following reference | standard.
A: 지지 기재(또는 BG 테이프)를 접착제층으로부터 박리할 수 있고, 접착제층과 웨이퍼의 박리가 없음.A: A support base material (or BG tape) can be peeled from an adhesive bond layer, and there is no peeling of an adhesive bond layer and a wafer.
B: 지지 기재(또는 BG 테이프)를 접착제층으로부터 일부 박리할 수 없고, 일부 접착제층째로 웨이퍼로부터 박리됨(접착제층의 웨이퍼로부터의 박리 면적이 30% 미만).B: The support base material (or BG tape) cannot be peeled partly from an adhesive bond layer, but is peeled off from a wafer in part of an adhesive bond layer (the peeling area from the wafer of an adhesive bond layer is less than 30%).
C: 지지 기재(또는 BG 테이프)를 접착제층으로부터 박리할 수 없고, 접착제층째로 웨이퍼로부터 박리됨(접착제층의 웨이퍼로부터의 박리 면적이 30% 이상)C: A support base material (or BG tape) cannot be peeled from an adhesive bond layer, It peels from a wafer by an adhesive bond layer (The peeling area from the wafer of an adhesive bond layer is 30% or more).
1: 보호 필름
2: 접착제층
3: 지지 기재
4: 그라인더
5: 다이싱 테이프
6: 다이싱 소우
7: 흡인 콜릿
8: 반도체 소자 탑재용 지지 부재
10: 회로 부재 접속용 접착제 시트
12: 필름상 접착제 부착 반도체 소자
20, 22: 회로 전극
30: 반도체 장치
A: 반도체 웨이퍼
B: 방사선1: protective film
2: adhesive layer
3: supporting base material
4: grinder
5: dicing tape
6: dicing saw
7: suction collet
8: supporting member for semiconductor element mounting
10: adhesive sheet for circuit member connection
12: semiconductor device with a film adhesive
20, 22: circuit electrode
30: semiconductor device
A: semiconductor wafer
B: radiation
Claims (6)
(B) 에폭시 수지와,
(C) 방사선 중합성 화합물과,
(D) 광개시제와,
(E) 마이크로 캡슐형의 경화 촉진제
를 포함하는 접착제 조성물.(A) the thermoplastic resin whose weight average molecular weight is 20,000 or more and 100,000 or less,
(B) an epoxy resin,
(C) a radiation polymerizable compound,
(D) a photoinitiator,
(E) Microcapsule type curing accelerator
Adhesive composition comprising a.
를 포함하는 접착제 조성물.The said (A) component 100 mass parts, the said (B) component 5-500 mass parts, the said (C) component 5-200 mass parts, and said (D) component 0.1-30 mass parts And 50 to 300 parts by mass of the component (E).
Adhesive composition comprising a.
상기 반도체 웨이퍼의 상기 회로 전극이 설치되어 있는 측과는 반대측을 연삭하여 상기 반도체 웨이퍼를 박화하는 공정과,
상기 접착제층에 방사선을 조사하는 공정과,
상기 박화한 반도체 웨이퍼 및 상기 방사선이 조사된 접착제층을 다이싱하여 필름상 접착제 부착 반도체 소자로 개편화(個片化)하는 공정과,
상기 필름상 접착제 부착 반도체 소자와 반도체 소자 탑재용 지지 부재를 상기 필름상 접착제 부착 반도체 소자의 필름상 접착제를 통해 접착하는 공정
을 구비하는 반도체 장치의 제조 방법.Preparing a semiconductor wafer having a plurality of circuit electrodes on one of the main surfaces, and attaching the adhesive layer of the adhesive sheet for connecting circuit members according to claim 5 to the side where the circuit electrodes of the semiconductor wafer are provided;
Thinning the semiconductor wafer by grinding a side opposite to the side where the circuit electrode of the semiconductor wafer is provided;
Irradiating the adhesive layer with radiation;
Dicing the thinned semiconductor wafer and the radiation-irradiated adhesive layer into a semiconductor element with a film adhesive, and
A step of adhering the semiconductor element with a film adhesive and the support member for mounting a semiconductor element through a film adhesive of the semiconductor element with a film adhesive
The manufacturing method of the semiconductor device provided with.
Applications Claiming Priority (3)
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JPJP-P-2009-116699 | 2009-05-13 | ||
JP2009116699 | 2009-05-13 | ||
PCT/JP2010/057472 WO2010131575A1 (en) | 2009-05-13 | 2010-04-27 | Adhesive composition, adhesive sheet for connecting circuit member, and method for manufacturing semiconductor device |
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KR20120005550A true KR20120005550A (en) | 2012-01-16 |
KR101136599B1 KR101136599B1 (en) | 2012-04-18 |
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JP (3) | JP4766180B2 (en) |
KR (1) | KR101136599B1 (en) |
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Cited By (2)
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KR101649760B1 (en) * | 2015-04-29 | 2016-08-19 | 한국신발피혁연구원 | Manufacturing method of one-component water based adhesive composition having excellent water resistant and heat resistant and one-component water based adhesive composition using the same |
KR101870777B1 (en) * | 2017-03-28 | 2018-06-26 | 한국신발피혁연구원 | Manufacturing method of microcapsule type latent curing agent and microcapsule type latent curing agent using the same |
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MY170959A (en) * | 2012-04-10 | 2019-09-20 | Sumitomo Bakelite Co | Semiconductor device, die attach material, and method for manufacturing semiconductor device |
KR20150011072A (en) | 2013-07-22 | 2015-01-30 | 삼성전자주식회사 | Temporary bonding adhesive composition and method of manufacturing a semiconductor device using the same |
JP6244183B2 (en) * | 2013-11-20 | 2017-12-06 | 東京応化工業株式会社 | Processing method |
JP7031141B2 (en) * | 2017-06-01 | 2022-03-08 | 昭和電工マテリアルズ株式会社 | Semiconductor processing tape |
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CN112552853B (en) * | 2020-12-29 | 2022-08-02 | 烟台信友新材料有限公司 | Ultraviolet light initiated normal temperature fast curing single-component epoxy adhesive and preparation method thereof |
JP2024047022A (en) * | 2022-09-26 | 2024-04-05 | 株式会社レゾナック | Method for manufacturing semiconductor device and adhesive film for semiconductor wafer processing |
JP2024047019A (en) * | 2022-09-26 | 2024-04-05 | 株式会社レゾナック | Method for manufacturing semiconductor device, and adhesive film for semiconductor wafer processing |
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JPH1135699A (en) * | 1997-07-17 | 1999-02-09 | Toray Ind Inc | Production of product consisting of moisture curing resin |
JPH11130841A (en) * | 1997-10-29 | 1999-05-18 | Hitachi Chem Co Ltd | Epoxy resin composition, adhesive, composition for circuit connection and film using the same |
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CN101689518A (en) * | 2007-07-11 | 2010-03-31 | 日立化成工业株式会社 | Adhesive for circuit member connection |
JP5510911B2 (en) * | 2007-08-17 | 2014-06-04 | 株式会社伸興サンライズ | Composite interior coating material for buildings |
JP4900198B2 (en) * | 2007-11-02 | 2012-03-21 | 住友ベークライト株式会社 | Photosensitive resin composition having flux function |
JP5499516B2 (en) * | 2009-05-13 | 2014-05-21 | 日立化成株式会社 | Adhesive composition, circuit member connecting adhesive sheet, and method for manufacturing semiconductor device |
-
2010
- 2010-04-27 JP JP2010102495A patent/JP4766180B2/en not_active Expired - Fee Related
- 2010-04-27 KR KR1020117029354A patent/KR101136599B1/en not_active IP Right Cessation
- 2010-04-27 WO PCT/JP2010/057472 patent/WO2010131575A1/en active Application Filing
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2011
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- 2011-03-03 JP JP2011046809A patent/JP2011157552A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101649760B1 (en) * | 2015-04-29 | 2016-08-19 | 한국신발피혁연구원 | Manufacturing method of one-component water based adhesive composition having excellent water resistant and heat resistant and one-component water based adhesive composition using the same |
KR101870777B1 (en) * | 2017-03-28 | 2018-06-26 | 한국신발피혁연구원 | Manufacturing method of microcapsule type latent curing agent and microcapsule type latent curing agent using the same |
Also Published As
Publication number | Publication date |
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WO2010131575A1 (en) | 2010-11-18 |
JP2010285602A (en) | 2010-12-24 |
JP4766200B2 (en) | 2011-09-07 |
JP4766180B2 (en) | 2011-09-07 |
KR101136599B1 (en) | 2012-04-18 |
JP2011157552A (en) | 2011-08-18 |
JP2011146731A (en) | 2011-07-28 |
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