TWI242584B - High thermal conductivity spin castable potting compound - Google Patents
High thermal conductivity spin castable potting compound Download PDFInfo
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- TWI242584B TWI242584B TW091114610A TW91114610A TWI242584B TW I242584 B TWI242584 B TW I242584B TW 091114610 A TW091114610 A TW 091114610A TW 91114610 A TW91114610 A TW 91114610A TW I242584 B TWI242584 B TW I242584B
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- Prior art keywords
- silicon
- vol
- boron nitride
- viscosity
- zinc oxide
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- 150000001875 compounds Chemical class 0.000 title claims description 14
- 238000004382 potting Methods 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract description 38
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 35
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003054 catalyst Substances 0.000 claims abstract description 20
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052582 BN Inorganic materials 0.000 claims abstract description 14
- 239000011787 zinc oxide Substances 0.000 claims abstract description 11
- 239000001257 hydrogen Substances 0.000 claims abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 6
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract description 6
- -1 polysiloxanes Polymers 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 125000003342 alkenyl group Chemical group 0.000 claims description 7
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 7
- 239000003112 inhibitor Substances 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical group [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 125000001424 substituent group Chemical group 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 2
- 230000029936 alkylation Effects 0.000 claims 2
- 238000005804 alkylation reaction Methods 0.000 claims 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims 1
- 239000003085 diluting agent Substances 0.000 claims 1
- 229920000620 organic polymer Polymers 0.000 claims 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract description 24
- 229910052697 platinum Inorganic materials 0.000 abstract description 11
- 238000006459 hydrosilylation reaction Methods 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 abstract description 2
- 238000004528 spin coating Methods 0.000 abstract 1
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 26
- 239000004205 dimethyl polysiloxane Substances 0.000 description 24
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 24
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 24
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 23
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 13
- 239000000499 gel Substances 0.000 description 10
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 150000002430 hydrocarbons Chemical group 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000008393 encapsulating agent Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000004971 Cross linker Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000011231 conductive filler Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 229920005645 diorganopolysiloxane polymer Polymers 0.000 description 2
- WSUTUEIGSOWBJO-UHFFFAOYSA-N dizinc oxygen(2-) Chemical compound [O-2].[O-2].[Zn+2].[Zn+2] WSUTUEIGSOWBJO-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 150000004678 hydrides Chemical group 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZLRFPQPVXRIBCQ-UHFFFAOYSA-N 2-$l^{1}-oxidanyl-2-methylpropane Chemical compound CC(C)(C)[O] ZLRFPQPVXRIBCQ-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 210000000577 adipose tissue Anatomy 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007809 chemical reaction catalyst Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 125000002897 diene group Chemical group 0.000 description 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 229920006136 organohydrogenpolysiloxane Polymers 0.000 description 1
- 150000002903 organophosphorus compounds Chemical class 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 238000006884 silylation reaction Methods 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
- C08K5/5419—Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/045—Polysiloxanes containing less than 25 silicon atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/12—Polysiloxanes containing silicon bound to hydrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/285—Permanent coating compositions
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Description
1242584 A7 B7 五、發明説明(1 ) 發明技術領域 本發明係有關於用於封裝電路之可加成固化之聚矽 氧烷封裝化合物。 發明技術背景 熱傳導性材料傳統上被用於在吸熱層及產生熱之組件 及/或電路板間建立熱接觸。與電路板中之熱散逸作用有 關之例示揭示包含Cipolla等人之美國專利第5,268,815 號案(1993) ; Kim等人之美國專利第5,552,635號案 (1996);及 Shuff 之美國專利第 5,812,374 號案(1998)。 本發明係有關於可加成固化之矽酮凝膠及可廣泛作為 用於在嚴苛環境中保護及防護精密電子電路之封裝劑及包 覆劑。矽酮凝膠之另外應用包含光學接合密封劑、光學導 波器、鍵盤扶手,及淨室HEPA過濾器密封劑。包含含有 烯基之聚二有機矽氧烷聚合物、有機氫聚矽氧烷及氫矽烷 基化催化劑之可加成固化之矽酮凝膠組成物係此項技藝已 知。此等組成物係例示於美國專利第4,374,967號案(Brown 等人);美國專利第4,529,789號案(Kixnipa);美國專利第 5,332,795 號案(Fujiki 等人)。 特別地,此項技藝中提供藉由乙烯基官能化PDMS與 氫化物官能化之PDMS間之鉑催化反應製得之已交聯之 矽酮。Gelest公司生產可與聚二甲基矽氧烷使用之商用固 化封裝物。此等凝膠可以數種方式形成。一種方法係於非 反應性增充劑流體(例如,三甲基矽氧基終結之PDMS)存 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 峰 (請先閲讀背面之注意事項再填寫本頁) -、\一一口 ‘ 線— 1242584 A7 B7 五、發明説明(2 ) 在中合成已交聯之聚合物。依據本發明之方法係藉由使化 學計量過量之多官能性乙嫦基取代之石夕顚1與多官能性氫化 物取代之矽酮以使軟性之流體增充系統被獲得之方式反應 而製備矽酮凝膠。 於多官能性乙烯基取代之矽酮與多官能性氫化物取代 之矽酮之反應中,富乙烯基之溶膠部份被獲得。此等凝膠 系統之任一者之適當例子係教示於Debbaut之美國專利第 4,600,281 號案(1986) ; Debbaut 之美國專利第 4,634,207 號案(1987); Debbaut之美國專利第5,357,057號案(1994); Dubrow等人之美國專利第5,079,300號案(1992) ; Dubrow 等人之美國專利第4,777,063號案(1988);及Nelson之美 國專利第3,020,260號案(1962);此等揭示内容在此被併 入以供參考之用。 美國專利第5,571,853號案(Ikeno等人)揭示一種形成 凝膠之矽酮組成物,其包含(A)有機聚矽氧烷,其每一分 子含有0.15至0.35莫耳%(以所有矽鍵結有機基為基準計) 之平均量之矽鍵結之烯基,(B)非官能性有機聚矽氧烷,(C) 每分子含有平均為2個矽鍵結氫原子之有機氫聚矽氧烷, 及(D)加成反應催化劑。此矽酮組成物能產生具低彈性模 量且同時保持可撓性之凝膠狀之固化矽酮。 美國專利第6,225,433號案揭示一種可固化矽組成 物,其包含(A)100份重量之有機聚矽氧烷,其每分子含 有矽鍵結之芳基及至少二烯基,且於25°C具有〇力1至 1,000 Pa-s之黏度,其中芳基包含有機聚矽氧烷内之總矽 本紙張尺度適用中國國家標準(CNS) Α4規格(210X297公釐) (請先閲讀背面之注意事項再填寫本頁) -裝— 、^τ— …線— 1242584 A7 ------ -_____ 五、發明説明(3 ) " --—一 鍵結有機基之1至40莫耳% ;⑻有機聚石夕氧烧,其於25 C具有0.001至1〇 pa ,愈译日立八
Pa.s之黏度且母为子含有至少二個矽 (請先閱讀背面之注意事項再填寫本頁) 鍵、、、σ之氫原子,且其含量係足以固化此組成物;⑹舶催 化劑,其含量係足以固化此組成物;及(D)〇 〇〇〇〇i至_ 份重ϊ之於25°C具有0·01至1〇,〇〇〇 pas之黏度之有機聚 石夕氧烧,但當此有機聚石夕氧烧含有芳基時,此芳基係包含 此有機聚矽氧烷内之總矽鍵結有機基之少於丨莫耳%或多 於40莫耳%。有機聚石夕氧烷固化形成具少於或等於1 X w
Pa(於-65C)之錯合物模量及1〇 Hz之剪切頻率之矽_或 具有少於或等於2·9 X 1〇8 Pa(於_65。〇之楊氏模量之已固 化矽酮。 因此,所欲者係發展一種具有用於使熱散逸及/或轉 移至吸熱層及遠離電路組件且同時保護此電路免於機械應 力或避免此等應力傳送至電路之用於封裝電路之封裝化合 物0 作為此項技藝之現今狀態之例子,熱傳導性可離心澆 鑄之封裝劑展現約0.5 w/m。κ之熱傳導性。更高熱傳導 性係所欲的。 於致力於增加熱傳導性填料裝料量時,不可接受之黏 度上升發生,其會阻止離心澆鑄方法之應用。於可離心潦 鑄組成物中使用高裝料量之熱傳導性填料之改良熱傳導性 係所欲的。 發明概要描述 於本發明之基本方面,熱傳導性矽酮凝膠係藉由使化 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐〉 1242584 A7 ----______Β7____ 五、發明説明(4 ) 予汁里過罝之多官能性乙烯基取代矽酮與多官能性氫化物 取代矽酮反應而製備。熱傳導性化合物係三傳導性固態填 料,氧化鋁、氧化鋅及氮化硼之混合物。 於本發明之另一方面,其提供一種高熱傳導性可離心 w鑄之封裝化合物,其係以二部份可加成交聯組成物具體 化,其中以乙烯基終結之矽氧烷與si鍵結之氫係於鉑催 化劑存在中父聯(氫矽烷基化),且其係以如下所指定於實 質上缺乏氮化鋁中含有氧化鋁、氧化鋅及氮化硼之混合 物。 較佳具體例之詳細描述 可離心澆鑄之封裝化合物包含組份(aHE): (A)瘦基終結之二右捲臀访y埤 婦基終結之二有機聚石夕氧烧係已知且可於全世界購 得。可鍵結至組份(A)内之矽原子之烯基之例子包含乙烯 基、烯丙基、丁烯基及己稀基。較佳地,此等基係乙婦基。 可鍵結至組份(A)内之矽原子之非烯基之取代基之例子包 含被取代或未被取代之單價烴基,例如,烷基,諸如,甲 基、乙基及丙基等;芳基,諸如,苯基及甲苯基等;及鹵 化烷基,諸如,3,3,3-三氟丙基等。聚合物亦可含有格外 小含量之羥基及烷氧基,諸如,甲氧基等。較佳之乙稀基 含量係0.3至0·6(較佳係〇·3至〇·45)莫耳%。 (Β)交聯劑 交聯劑係一種氫官能化(例如,氫化物終結)之有機聚 矽氧烷,其具有1與1,000,000 cp之黏度(於25。〇且每分 本紙張尺度適用中國國家標準(0^) A4規格U10X297公釐) (請先閲讀背面之注意事項再填寫本頁)
1242584 A7 B7 五、發明説明(6 ) (E)固化速率阻化劑 (請先閲讀背面之注意事項再填寫本頁) 封裝化合物之固化速率需被減緩。適當之阻化減緩劑 包含炔化合物;有機磷化合物或含乙烯基之矽氧烷化合物 等。較佳之阻化劑係乙烯基曱基矽氧烷之同聚物,可得自 Gelest,Inc·之 VMS T-11 〇 熱傳導性填料係以氧化鋁、氧化鋅及氮化硼之混合物 之50-85體積%使用。 較佳組份 於較佳具體例中,可固化之封裝劑展現 250,000/75,000 cps 之布魯克菲爾德(Brookfield) DVII(#7 紡錘)1/10 rpm(於25°C)、至少2(較佳係2.75至4)W/mk 之熱傳導性及30至80之固化後肖氏A硬度,且包含: …線丨 較佳地,(A)可於此使用之烯基終結之二有機聚矽氧 烷,其會展現50與100,000 cP間之黏度(於25°C),且每 分子含有至少二個矽鍵結之烯基。較佳地,黏度範圍係50 至 200 cps(於 25°C 及 99%固體); 較佳地,作為交聯劑之(B)會包含具1與100厘斯之 黏度(於25°C)且每分子含有平均至少2個矽鍵結之氫原子 之氫官能化有機聚矽氧烷,其含量係每分子之矽鍵結官能 化二有機聚矽氧烷係提供0.2與5莫耳間之矽鍵結氫; 較佳地,(C)負電基終結之矽氧烷寡聚物含有位於寡 聚化合物之終結部份之負電取代基,包含二曱基乙醯氧基 終結之聚二曱基矽氧烷(PDMS)、曱基二乙醯氧基終結之 PDMS、二甲基乙氧基終結之PDMS、胺基丙基二甲基終 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1242584 A7 B7 五、發明説明(7 ) 結之PDMS、甲醇終結之PDMS、單曱醇終結之PDMS、 二甲基氯終結之PDMS、二曱基胺基終結之PDMS、二曱 基乙氧基終結之PDMS、二甲基甲氧基PDMS、甲基丙烯 氧丙基終結之PDMS、單甲基丙烯氧丙基終結之PDMS、 羧基丙基二甲基終結之PDMS、氯甲基二甲基終結之 PDMS、羧基丙基二甲基終結之PDMS及矽醇終結之聚甲 基-3,3,3-三氟丙基矽氧烷,且胺基丙基二甲基終結之 PDMS、單曱醇終結之PDMS係較佳。 (D)催化劑係典型之鉑氫矽烷基化催化劑且係以特定量使 用,低於此含量時係足以進行矽酮組成物之固化;及 (D) 固化速率阻化劑 (E) 較佳地,40-60體積%之氧化鋁被使用,10-20體積% 之氧化鋅,及1.2-5體積%之氮化硼被用於最終混合物内。 封裝化合物可進一步包含下述平均化學式之有機矽氧 烧樹脂 Ra Si02 其中R係非烯基之單價烴基,且a係2.0與2.2間之數值, 且b係0.9與1.0間之數值。重量%係以有機矽氧烷加上(A) 烯基官能化二有機聚矽氧烷及(B)氫官能化有機聚矽氧烷 之量為基準計。 固化催化劑(C)係氫矽烷基化催化劑。此催化劑含有 下列元醇之至少一者冲卜1〇1、1〇1、?(1、见(例如,萊尼(1^1167) 鎳),及其等之混合物。催化劑選擇性被偶合至惰性或活 化之撐體。可被使用之較佳催化劑之例子包含鉑型催化 -—ί-θ-- 本紙張尺度適用中國國家標準(CNS) Α4規格(210X297公釐) (請先閲讀背面之注意事項再填寫本頁) 、?τ— :線| 1242584 A7 B7 五、發明説明(8 ) 劑,諸如,氯始酸、氯始酸之醇溶液、始及稀烴之錯合物、 鉑及1,3-二乙烯基-1,1,3,3-四甲基二矽氧烷之錯合物,及 其上支撐鉑之粉末等。鉑催化劑係被完全描述於文獻。特 別被述及者係描述於美國專利第3,159,601 ; 3,159,602 ; 及 3,220,972 號案及歐洲專利 EP-A-057,459; EP-188,978 及EP-A-190,530號案所述之鉑及有機產物之錯合物,美 國專利第 3,419,593 ; 3,715,334 ; 3,377,432 ; 3,814,730 ; 及3,775,452號案(Karstedt)所述之鉑及乙烯基化有機聚矽 氧烷之錯合物。特別地,鉑型催化劑係特別所欲的。例示 之可購得之鉑催化劑係可得自Gelest,Inc.之SIP 6830。 於鉑型催化劑之使用中,此催化劑之鉑金屬含量係0.01 至1,000 ppm(重量單位)之範圍,0·1至500 ppm範圍之含 量係較佳,另外,以對總組份之體積百分率而言,催化劑 含量範圍可為0.0001至0.1體積%。 選擇性地,較佳被包含於封裝化合物内之最高達10 體積%係分散劑(G),其係正丙基三甲氧基矽烷(PTMO)之 寡聚物。商業上之PTMO可得自Degussa-Huls之商品名 為 DYNASYLAN®,特別是 Dynasylan PTMO。 熱傳導性材料、氧化鋁、氧化鋅及氮化硼可於產業中 廣泛獲得。氧化鋁(可以α氧化鋁獲得)具有0.2%之於200 篩網上保留百分率,及95%通過325篩網。 一般應用方法 凝膠組成物係軟性,即,其具有25至85(較佳係50 至60)之肖氏Α硬度,且以預成型墊材具體例,具有少於 --_ 11 .- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) (請先閲讀背面之注意事項再填寫本頁) 裝丨 …線丨 1242584 五、發明説明 2 MPa(較佳係少於1 MPa)之壓縮模量。壓縮模量係經由 ASTM D 575 (1991)測量(其係使用25.4 mm(l英时)碟, 3mm厚,及OJmm/分鐘之壓縮速率)時於1〇%壓縮率時之 模量。 凝膠先質組成物可藉由塗覆及封裝電子電路之技藝已 知之傳統離心洗每方法塗敷。另外,封裝化合物塾材可藉 由傳統印刷方法(諸如,照相版或橡皮版印刷)或另外藉由 能使較厚層被塗敷之方法(諸如,篩網印刷或模版印刷, 例如’厚度大於0.25mm)塗敷。較厚層亦可藉由分配先質 組成物之不連續珠材、透鏡、帶材或點狀物而達成,其於 固化期間編結在一起形成凝膠組成物之連續體。分配及模 版印刷之結合可被用以控制最後材料之尺寸(面積)及厚 度。 較佳具體例係含有如下部份之二部份化合物: A-側 第A表 (請先閲讀背面之注意事項再填寫本頁) -裝- 、τ_ 化學描述 材料 製造者(配送者) 範圍(體精%) (1)乙烯基終結之PDMS (1) VS-100 Hanse-Chemie( Anderson and Assoc, dist) 20.0-65.0 (2)鉑催化劑 (2)SIP 6830 Pt 催化 劑 Gelest, Inc. 0.0001-0.1 (3)單甲醇終結之PDMS (3) MCR C-22 Gelest, Inc. 0.0-10.0 (4)C締基甲基矽氧烷同 (4)VMST-11 阻化劑 Gelest, Inc. 0.0001-1.0 三甲氧基矽烷 (5)Dynasylan PTMO Degussa-Huls 0.0-10.0 (6)氧化鐵* (6)氧化鐵 Kroma Red Harcros Pigments Inc. (C.L. Zimmerman, dist) 0.0-10.0 (7)T-64 Alcoa(Whittaker, Clark and Danniels,dist) 40.0-60.0 氮化硼 (9)氮化硼 PT-110S Advanced Ceramics Corp. 1.2-5.0 化鋅 (8)USP-2氧化鋅 Zinc Corp. of America 10.0-20.0 •線, B-側 第B表 材料 製造者 終結之 I>DMS (1) VS-100 Hanse-Chemie 20.0-65.0 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1242584 A7 B7 五、發明説明(1()) (2)單甲醇終結之PDMS (2) MCR C-22 Gelest, Inc. 0.0-10.0 (3)聚二甲基-甲基氫矽 氧烷 (3)VX-L交聯劑 OSI Specialties 0.5-15.0 (4)丙基三甲氧基矽烷 (4)Dynasylan PTMO Degussa-Huls 0.0-10.0 (5)氧化鋁 (5)T-64 Alcoa 40.0-60.0 (6)氧化鋅 (6)USP-2氧化鋅 Zinc Corp. of America 10.0-20.0 ⑺氮化硼 (7)氮化硼 PT-110S Advanced Ceramics Corp. 1.2-5.0 *選擇性上色色料較佳被用於使A或B側之一著色。 (請先閱讀背面之注意事項再填寫本頁) 較佳地,氧化鐵(諸如,可得自 Harcros Pigments Inc.之 Kroma Red)被包含於A-側内。 製備此化合物之方法 使用雙行星式(Planetary)混合器,A-側係藉由混合第 A表之組份而製得: 1) 添加1、2、3、4及5至Ross⑧行星式混合器,且混合 5-10分鐘。 2) 添加6及1/3之7與8至混合物,且混合10-15分鐘(於 30 RPM)。 3) 添加1/3之7與8至Ross,混合10-15分鐘(於30 RPM)。 4) 添加1/3之7與8至Ross,混合30-35分鐘(於30 RPM)。 5) 添加9,混合3-5分鐘以濕化,停止混合器,擦淨刀刃。 6) 於<2托耳混合60-65分鐘(30 RPM)。 7) 移除及封裝。 使用雙行星式混合器,B-側係藉由混合第B表之組 份而製備: 1) 添加1、2、3及4至Ross,混合5-10分鐘。 2) 添加1/3之5與6至Ross,混合10-15分鐘(於30 RPM)。 3) 添加1/3之5與6至Ross,混合10-15分鐘(於30 RPM)。 4) 添加1/3之5與6至Ross’混合30-35分鐘(於30 RPM)。 ------------------ η"-- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1242584 A7 ____—— _ B7 五、發明説明(11 ) 熱傳導性 熱傳導性係使用Mathis⑧熱碟(H〇t Disk)熱傳導性測試器 測S °對於含有第A表之一具體例的個別範例係重複三測 試。此三次操作之平均值係2·98 w/mk,其對於提供可離 心洗鑄黏度及55之肖氏A硬度之材料係不可預期。 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 14 (請先閲讀背面之注意事項再填寫本頁)
Claims (1)
1242584 > ·—在 \ ' Γ
六、申請專利範圍 第91114610號專利申請案申請專利範圍修正本 94 〇5
1· -種封裝電路之方法,包含使% _凝膠組成物離心洗禱 之步驟’該凝膠組成物包含·· 人氧化銘、氧化鋅及氮化硼一起之一混合物,其提供相 對於一氫官能性有機聚矽氧烷之矽氫基團一化學計量過 量的官能性石夕嗣上之稀基基團。
2.如申凊專利範圍第丨項之方法,其中該凝膠組成物具有 大於2 W/mK之體積熱傳導性。 3·如申請專利範圍第2項之方法,其巾該凝膠組成物係藉 由固化具下述特徵之該凝膠組成物而製得·· (A) —烯基官能化之二有機聚矽氧烷,其於25艺具有5〇 與100,000 cP間之黏度,且每分子具有至少二個矽 鍵結之烯基;
(B) —氫官能化之有機聚矽氧烷,其於25χ:具有1與 1,000,000 cP間之黏度且每分子含有平均至少2個矽 鍵結之氫原子; (C) 一負電基終結之矽氧烷寡聚物含有位於該寡聚化合 物之終結部份之負電取代基; (D) 氫矽氧烷基化催化劑, (E) 固化速率阻化劑; (F) 40-60體積%之氧化鋁,10-20體積%之氧化鋅,及 1.2-5體積%之氮化硼。 4· 一種可加成固化之預塑封裝組成物,其包含有: (A)' —烤基官能化之《—有機聚石夕氧烧,其於2 5 °C具有50 15 1242584 t、申請專利範圍 與100,000 cP間之黏度,且每分子具有至少二個矽 鍵結之稀基,且相對於(B)而言呈一化學計量過量; (B) —氫官能化之有機聚矽氧烷,其於25°C具有1與 1,000,000 cP間之黏度且每分子含有平均至少2個矽 鍵結之氫原子,且其含量係該稀基官能化之二有機聚 矽氧烷(A)内之每莫耳之矽鍵結烯基係提供0.2與5.0 莫耳間之矽鍵結之氫; (C) 一負電基終結之矽氧烷寡聚物,其於該寡聚化合物之 終結部份含有負電取代基; (D) 氫矽氧烷基化催化劑, (E) 固化速率阻化劑; (F) 40-60體積%之氧化鋁,10-20體積%之氧化鋅,及1.2-5 體積%之氮化硼。
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| TWI482808B (zh) * | 2007-09-20 | 2015-05-01 | 默曼堤效能材料股份有限公司 | 含氮化硼之聚矽氧烷凝膠組成物 |
| TWI641428B (zh) * | 2017-05-08 | 2018-11-21 | 致伸科技股份有限公司 | 離心注膠系統及其方法 |
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| US20040092655A1 (en) * | 2001-04-02 | 2004-05-13 | Takayoshi Otomo | Mouldable silicone gel compositions |
| DE10330020A1 (de) * | 2003-07-03 | 2005-01-20 | Degussa Ag | Hochgefüllte Silan-Zubereitung |
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-
2002
- 2002-07-02 TW TW091114610A patent/TWI242584B/zh not_active IP Right Cessation
- 2002-07-03 US US10/190,110 patent/US6770326B2/en not_active Expired - Lifetime
- 2002-07-03 WO PCT/US2002/021250 patent/WO2003004567A1/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI482808B (zh) * | 2007-09-20 | 2015-05-01 | 默曼堤效能材料股份有限公司 | 含氮化硼之聚矽氧烷凝膠組成物 |
| TWI641428B (zh) * | 2017-05-08 | 2018-11-21 | 致伸科技股份有限公司 | 離心注膠系統及其方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20030050419A1 (en) | 2003-03-13 |
| US6770326B2 (en) | 2004-08-03 |
| WO2003004567A1 (en) | 2003-01-16 |
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