CN106255728A - 硬化性硅组合物、其硬化物、以及光半导体装置 - Google Patents
硬化性硅组合物、其硬化物、以及光半导体装置 Download PDFInfo
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- CN106255728A CN106255728A CN201580006763.XA CN201580006763A CN106255728A CN 106255728 A CN106255728 A CN 106255728A CN 201580006763 A CN201580006763 A CN 201580006763A CN 106255728 A CN106255728 A CN 106255728A
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- organopolysiloxane
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- 239000000203 mixture Substances 0.000 title claims abstract description 94
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 61
- 239000010703 silicon Substances 0.000 title claims abstract description 42
- 239000004065 semiconductor Substances 0.000 title claims description 36
- 230000003287 optical effect Effects 0.000 title claims description 35
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 58
- 125000003342 alkenyl group Chemical group 0.000 claims abstract description 40
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 31
- 125000003118 aryl group Chemical group 0.000 claims abstract description 25
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 22
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 18
- 125000003710 aryl alkyl group Chemical group 0.000 claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- 238000006459 hydrosilylation reaction Methods 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000001737 promoting effect Effects 0.000 claims description 3
- 239000002683 reaction inhibitor Substances 0.000 claims description 2
- -1 heptenyl Chemical group 0.000 description 71
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical group [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 44
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- 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 6
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- 229910052693 Europium Inorganic materials 0.000 description 5
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 5
- 125000001246 bromo group Chemical group Br* 0.000 description 5
- 125000001309 chloro group Chemical group Cl* 0.000 description 5
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- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 5
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- QWENRTYMTSOGBR-UHFFFAOYSA-N 1H-1,2,3-Triazole Chemical compound C=1C=NNN=1 QWENRTYMTSOGBR-UHFFFAOYSA-N 0.000 description 4
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- 125000004423 acyloxy group Chemical group 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
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- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
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- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical group OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- IKPUOBYSZKPWGX-UHFFFAOYSA-N methoxy(penta-1,4-dien-3-yl)silane Chemical compound C(=C)C(C=C)[SiH2]OC IKPUOBYSZKPWGX-UHFFFAOYSA-N 0.000 description 1
- POPACFLNWGUDSR-UHFFFAOYSA-N methoxy(trimethyl)silane Chemical compound CO[Si](C)(C)C POPACFLNWGUDSR-UHFFFAOYSA-N 0.000 description 1
- ZMMBQCILDZFYKX-UHFFFAOYSA-N methyl 2h-benzotriazole-5-carboxylate Chemical compound C1=C(C(=O)OC)C=CC2=NNN=C21 ZMMBQCILDZFYKX-UHFFFAOYSA-N 0.000 description 1
- 239000005055 methyl trichlorosilane Substances 0.000 description 1
- SKYCLDLCBIETAK-UHFFFAOYSA-N methyl(3-phenylprop-2-enoxy)silane Chemical compound C[SiH2]OCC=CC1=CC=CC=C1 SKYCLDLCBIETAK-UHFFFAOYSA-N 0.000 description 1
- UIUXUFNYAYAMOE-UHFFFAOYSA-N methylsilane Chemical compound [SiH3]C UIUXUFNYAYAMOE-UHFFFAOYSA-N 0.000 description 1
- YSBWEEYHPPQJIU-UHFFFAOYSA-N methylsilyl 2,2-diphenylacetate Chemical compound C=1C=CC=CC=1C(C(=O)O[SiH2]C)C1=CC=CC=C1 YSBWEEYHPPQJIU-UHFFFAOYSA-N 0.000 description 1
- RFJXZOGTGKLKEU-UHFFFAOYSA-N methylsilyl 4-phenylbut-3-enoate Chemical compound C[SiH2]OC(CC=CC1=CC=CC=C1)=O RFJXZOGTGKLKEU-UHFFFAOYSA-N 0.000 description 1
- JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- OKQVTLCUHATGDD-UHFFFAOYSA-N n-(benzotriazol-1-ylmethyl)-2-ethyl-n-(2-ethylhexyl)hexan-1-amine Chemical compound C1=CC=C2N(CN(CC(CC)CCCC)CC(CC)CCCC)N=NC2=C1 OKQVTLCUHATGDD-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- NQEDSLMJTARJAI-UHFFFAOYSA-N phenol;2h-triazole Chemical compound C1=CNN=N1.OC1=CC=CC=C1 NQEDSLMJTARJAI-UHFFFAOYSA-N 0.000 description 1
- XHTWKNPMPDIELI-UHFFFAOYSA-N phenylmethoxysilane Chemical compound [SiH3]OCC1=CC=CC=C1 XHTWKNPMPDIELI-UHFFFAOYSA-N 0.000 description 1
- PARWUHTVGZSQPD-UHFFFAOYSA-N phenylsilane Chemical compound [SiH3]C1=CC=CC=C1 PARWUHTVGZSQPD-UHFFFAOYSA-N 0.000 description 1
- 239000005054 phenyltrichlorosilane Substances 0.000 description 1
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- 238000007747 plating Methods 0.000 description 1
- 150000003058 platinum compounds Chemical class 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- XFTDXEGRBTYXQE-UHFFFAOYSA-N silyl 3-ethenylpent-4-enoate Chemical compound C(=C)C(C=C)CC(=O)O[SiH3] XFTDXEGRBTYXQE-UHFFFAOYSA-N 0.000 description 1
- UYAQJZZGMJTIAV-UHFFFAOYSA-N silyl 4,4-diphenylbut-3-enoate Chemical compound C1(=CC=CC=C1)C(=CCC(=O)O[SiH3])C1=CC=CC=C1 UYAQJZZGMJTIAV-UHFFFAOYSA-N 0.000 description 1
- SJUYHBCRXPVODY-UHFFFAOYSA-N silyl 4-ethylhex-3-enoate Chemical compound C(C)C(=CCC(=O)O[SiH3])CC SJUYHBCRXPVODY-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- YZVRVDPMGYFCGL-UHFFFAOYSA-N triacetyloxysilyl acetate Chemical compound CC(=O)O[Si](OC(C)=O)(OC(C)=O)OC(C)=O YZVRVDPMGYFCGL-UHFFFAOYSA-N 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- ZOYFEXPFPVDYIS-UHFFFAOYSA-N trichloro(ethyl)silane Chemical compound CC[Si](Cl)(Cl)Cl ZOYFEXPFPVDYIS-UHFFFAOYSA-N 0.000 description 1
- ORVMIVQULIKXCP-UHFFFAOYSA-N trichloro(phenyl)silane Chemical compound Cl[Si](Cl)(Cl)C1=CC=CC=C1 ORVMIVQULIKXCP-UHFFFAOYSA-N 0.000 description 1
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 1
- SEUGQQYRPAEMFC-UHFFFAOYSA-N triethoxy(pyren-1-yl)silane Chemical compound C1=C2C([Si](OCC)(OCC)OCC)=CC=C(C=C3)C2=C2C3=CC=CC2=C1 SEUGQQYRPAEMFC-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- HUZZQXYTKNNCOU-UHFFFAOYSA-N triethyl(methoxy)silane Chemical compound CC[Si](CC)(CC)OC HUZZQXYTKNNCOU-UHFFFAOYSA-N 0.000 description 1
- DAHWFTWPSFSFMS-UHFFFAOYSA-N trihydroxysilane Chemical compound O[SiH](O)O DAHWFTWPSFSFMS-UHFFFAOYSA-N 0.000 description 1
- GIULLRLLAPLKNF-UHFFFAOYSA-N trimethoxy(pyren-1-yl)silane Chemical compound C1=C2C([Si](OC)(OC)OC)=CC=C(C=C3)C2=C2C3=CC=CC2=C1 GIULLRLLAPLKNF-UHFFFAOYSA-N 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- 239000005051 trimethylchlorosilane Substances 0.000 description 1
- AAPLIUHOKVUFCC-UHFFFAOYSA-N trimethylsilanol Chemical compound C[Si](C)(C)O AAPLIUHOKVUFCC-UHFFFAOYSA-N 0.000 description 1
- QHUNJMXHQHHWQP-UHFFFAOYSA-N trimethylsilyl acetate Chemical compound CC(=O)O[Si](C)(C)C QHUNJMXHQHHWQP-UHFFFAOYSA-N 0.000 description 1
- JYTZMGROHNUACI-UHFFFAOYSA-N tris(ethenyl)-methoxysilane Chemical compound CO[Si](C=C)(C=C)C=C JYTZMGROHNUACI-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
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- 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
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/44—Block-or graft-polymers containing polysiloxane sequences containing only polysiloxane sequences
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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
- C08L83/04—Polysiloxanes
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- 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
- C08G77/06—Preparatory processes
- C08G77/08—Preparatory processes characterised by the catalysts used
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- C—CHEMISTRY; METALLURGY
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- 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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- 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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- 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
- C08G77/80—Siloxanes having aromatic substituents, e.g. phenyl side groups
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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
- C08K3/32—Phosphorus-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7706—Aluminates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
- H01L23/3121—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed a substrate forming part of the encapsulation
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/851—Wavelength conversion means
- H10H20/8511—Wavelength conversion means characterised by their material, e.g. binder
- H10H20/8512—Wavelength conversion materials
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- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/852—Encapsulations
- H10H20/854—Encapsulations characterised by their material, e.g. epoxy or silicone resins
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- C08G2190/00—Compositions for sealing or packing joints
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- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32245—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48225—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Silicon Polymers (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
Abstract
本发明为一种硬化性硅组合物,其含有:(A)以平均単位式:(R1 3SiO1/2)x(R2 2SiO2/2)y(R3SiO3/2)z(R1为烷基、烯基、芳基、或者芳烷基,R2为烷基或者烯基,R3为烷基、芳基、或者芳烷基,其中,一分子中R1~R3的至少0.5摩尔百分比为烯基,R3的至少一个为芳基或者芳烷基,0.01≤x≤0.5、0.01≤y≤0.4、0.1≤z≤0.9、且x+y+z=1)表示的有机聚硅氧烷;(B)一分子中具有至少2个烯基的直链状的有机聚硅氧烷;(C)一分子中具有至少2个与硅原子键合的氢原子的有机聚硅氧烷;以及(D)氢化硅烷化反应用催化剂。该硬化性硅组合物的荧光体的分散性良好、可形成具有耐裂性的硬化物。
Description
技术领域
本发明涉及一种硬化性硅组合物、该组合物的硬化物、以及使用该组合物而成的光半导体装置。
背景技术
硬化性硅组合物用于发光二极管(LED)等光半导体装置中的光半导体元件的密封剂、保护剂、涂布剂等。作为这样的硬化性硅组合物,可例示:含有一分子中具有至少2个烯基和至少1个芳基的直链状的有机聚硅氧烷、以平均单元式:(RSiO3/2)a(R2SiO2/2)b(R3SiO1/2)c(SiO4/2)d(XO1/2)e{式中,R为相同或不同的一价烃基,其中,一分子中,总R的0.1~40摩尔百分比为烯基,总R的10摩尔百分比以上为芳基,X为氢原子或烷基,a为正数,b为0或正数,c为0或正数,d为为0或正数,e为为0或正数,且b/a为0~10的数,c/a为0~0.5的数,d/(a+b+c+d)为0~0.3的数,e/(a+b+c+d)为0~0.4的数}表示的支链状的有机聚硅氧烷、一分子中具有至少2个与硅原子键合的氢原子的有机聚硅氧烷以及氢化硅烷化反应用催化剂的硬化性硅组合物(参照专利文献1和2);含有一分子中具有至少2个烯基和至少1个芳基的直链状的有机聚硅氧烷、以平均单元式:(RSiO3/2)f(R2SiO2/2)g(R3SiO1/2)h{式中,R为相同或不同的一价烃基,其中,一分子中,总R的0.5摩尔百分比以上为烯基,总R的25摩尔百分比以上为芳基,f、g和h分别为满足0.30≤f≤0.60、0.30≤g≤0.55、f+g+h=1.00、和0.10≤h/(f+g)≤0.30的数}表示的支链状的有机聚硅氧烷、一分子中具有至少平均2个的芳基和至少平均2个的与硅原子键合的氢原子的有机聚硅氧烷以及氢化硅烷化反应用催化剂的硬化性硅组合物(参照专利文献3)。
在专利文献1和2中,作为支链状的有机聚硅氧烷,没有具体记载具有以式:R’2SiO2/2(式中,R’为相同或不同的碳数为1~12的烷基或者碳数为2~12的烯基)表示的硅氧烷单元的支链状的有机聚硅氧烷。另外,在专利文献3中,记载有下述内容:相对于直链状的有机聚硅氧烷100质量份,支链状的有机聚硅氧烷的含量超过150质量份时,获得的硬化物对于基材的密合性下降,不优选。
通常,这样的硬化性硅组合物混配用于变换来自LED的发光波长的荧光体而进行使用,但荧光体的分散性较差,因此存在荧光体发生凝聚,其结果在来自LED的光中产生不均匀的问题。进一步,对利用这样的硬化性硅组合物的硬化物进行密封的LED施加高电流值使其持续发光时,还存在硬化物产生裂纹的问题。
现有技术文献
专利文献
专利文献1:日本专利特开2004-143361号公报
专利文献2:日本专利特开2005-105217号公报
专利文献3:日本专利特开2008-001828号公报
发明内容
发明要解决的问题
本发明的目的在于提供一种硬化性硅组合物,其荧光体的分散性良好、硬化后可形成具有耐裂性的硬化物。另外,本发明的另一目的在于提供一种硬化物,其荧光体的分散性良好、具有耐裂性。进一步,本发明的另一目的在于提供一种光半导体装置,其可靠性优异。
技术方案
本发明的硬化性硅组合物的特征在于,其至少由下述物质构成:
(A)以平均单元式:
(R1 3SiO1/2)x(R2 2SiO2/2)y(R3SiO3/2)z
表示的有机聚硅氧烷,式中,R1为相同或不同的碳数为1~12的烷基、碳数为2~12的烯基、碳数为6~20的芳基、或者碳数为7~20的芳烷基,R2为相同或不同的碳数为1~12的烷基、或者碳数为2~12的烯基,R3为碳数为1~12的烷基、碳数为6~20的芳基、或者碳数为7~20的芳烷基,其中,一分子中,以所述R1、R2和R3表示的基团的总和的至少0.5摩尔百分比为所述烯基,以所述R3表示的基团的至少1个为所述芳基或者所述芳烷基,x、y和z分别为满足0.01≤x≤0.5、0.01≤y≤0.4、0.1≤z≤0.9、且x+y+z=1的数。
(B)相对于100质量份(A)成分,0.1~60质量份的一分子中具有至少2个烯基的直链状的有机聚硅氧烷;
(C)一分子中具有至少2个与硅原子键合的氢原子的有机聚硅氧烷{相对于(A)成分和(B)成分中所含的烯基总量1摩尔,本成分所含的与硅原子键合的氢原子为0.1~10摩尔的量};以及
(D)氢化硅烷化反应用催化剂,其量是可促进本组合物硬化的量。
本发明的硬化物的特征在于,其将上述组合物硬化而成。
本发明的光半导体装置的特征在于,其将光半导体元件利用上述组合物的硬化物密封、或覆盖而成。
有益效果
本发明的硬化性硅组合物具有荧光体的分散性良好、硬化后可形成具有耐裂性的硬化物的特征。另外,本发明的硬化物具有荧光体的分散性良好、具有耐裂性的特征。进一步,本发明的光半导体装置具有可靠性优异的特征。
附图说明
图1为本发明的光半导体装置的一例的表面安装型LED的截面图。
具体实施方式
首先,详细说明本发明的硬化性硅组合物。
(A)成分为以平均单元式:
(R1 3SiO1/2)x(R2 2SiO2/2)y(R3SiO3/2)z
表示的有机聚硅氧烷。
式中,R1为相同或不同的碳数为1~12的烷基、碳数为2~12的烯基、碳数为6~20的芳基、或者碳数为7~20的芳烷基。具体而言可例示甲基、乙基、丙基、丁基、戊基、己基、庚基、辛基、壬基、癸基、十一烷基、十二烷基等烷基;乙烯基、烯丙基、丁烯基、戊烯基、己烯基、庚烯基、辛烯基、壬烯基、癸烯基、十一碳烯基、十二碳烯基等烯基;苯基、甲苯基、二甲苯基、萘基、蒽基、菲基、芘基等芳基;苄基、苯乙基、萘乙基、萘丙基、蒽乙基、菲乙基、芘乙基等芳烷基;以及用氯原子、溴原子等卤素原子部分或全部取代了与这些基团键合的氢原子的基团。
另外,式中,R2为相同或不同的碳数为1~12的烷基、或者碳数为2~12的烯基。具体地可例示甲基、乙基、丙基、丁基、戊基、己基、庚基、辛基、壬基、癸基、十一烷基、十二烷基等烷基;乙烯基、烯丙基、丁烯基、戊烯基、己烯基、庚烯基、辛烯基、壬烯基、癸烯基、十一碳烯基、十二碳烯基等烯基;以及用氯原子、溴原子等卤素原子部分或全部取代了与这些基团键合的氢原子的基团。所述R2优选全部为所述烷基。
另外,式中,R3为碳数为1~12的烷基、碳数为6~20的芳基、或者碳数为7~20的芳烷基。具体而言可例示甲基、乙基、丙基、丁基、戊基、己基、庚基、辛基、壬基、癸基、十一烷基、十二烷基等烷基;苯基、甲苯基、二甲苯基、萘基、蒽基、菲基、芘基等芳基;苄基、苯乙基、萘乙基、萘丙基、蒽乙基、菲乙基、芘乙基等芳烷基;以及用氯原子、溴原子等卤素原子部分或全部取代了与这些基团键合的氢原子的基团。
一分子中,以所述R1、R2和R3表示的基团的总和、即与硅原子键合的总有机基团的至少0.5摩尔百分比为所述烯基,优选为乙烯基。进一步,一分子中,以所述R3表示的基团的至少1个为所述芳基或所述芳烷基,优选为苯基。
另外,式中,x、y和z分别为满足0.01≤x≤0.5、0.01≤y≤0.4、0.1≤z≤0.9、且x+y+z=1的数,优选为满足0.05≤x≤0.45、0.05≤y≤0.4、0.2≤z≤0.8、且x+y+z=1的数,或者为满足0.05≤x≤0.4、0.1≤y≤0.4、0.3≤z≤0.8、且x+y+z=1的数。这是因为,当x为上述范围的下限以上时,硬化物难以产生粘腻感,另一方面是因为,当x为上述范围的上限以下时,硬化物的强度良好。另外,这是因为,当y为上述范围的下限以上时,硬化物的伸长率提高,另一方面是因为,当y为上述范围的上限以下时,硬化物的机械特性提高。另外,这是因为,当z为上述范围的下限以上时,硬化物的折射率良好、气体阻隔性良好,另一方面是因为,当z为上述范围的上限以下时,硬化物的机械特性提高。
(A)成分可以为一种有机聚硅氧烷,或者也可以为2种以上的有机聚硅氧烷混合物。(A)成分为至少2种有机聚硅氧烷的情况下,其混合物只要为以上述平均单元式表示的物质即可。作为这样的有机聚硅氧烷的混合物,可列举由以式:R1 3SiO1/2表示的硅氧烷单元、以式:R2 2SiO2/2表示的硅氧烷单元和以式:R3SiO3/2表示的硅氧烷单元构成的有机聚硅氧烷,以及由以式:R1 3SiO1/2表示的硅氧烷单元、以式:R2 2SiO2/2表示的硅氧烷单元和以式:R3SiO3/2表示的硅氧烷单元构成的有机聚硅氧烷的混合物;由以式:R1 3SiO1/2表示的硅氧烷单元、以式:R2 2SiO2/2表示的硅氧烷单元和以式:R3SiO3/2表示的硅氧烷单元构成的有机聚硅氧烷,以及由以式:R1 3SiO1/2表示的硅氧烷单元和以式:R3SiO3/2表示的硅氧烷单元构成的有机聚硅氧烷的混合物;由以式:R1 3SiO1/2表示的硅氧烷单元、以式:R2 2SiO2/2表示的硅氧烷单元和以式:R3SiO3/2表示的硅氧烷单元构成的有机聚硅氧烷,以及由以R2 2SiO2/2表示的硅氧烷单元和以式:R3SiO3/2表示的硅氧烷单元构成的有机聚硅氧烷的混合物。进一步,在不损害本发明的目的的范围内,(A)成分中可以具有以式:SiO4/2表示的硅氧烷单元。进一步,在不损害本发明目的的范围内,(A)成分中的硅原子中可以键合甲氧基、乙氧基、丙氧基等烷氧基或羟基。
对于制备(A)成分的有机聚硅氧烷的方法没有限定,可列举例如下述方法:将以通式:
R3SiX3
表示的硅烷(I)、以通式:
R2 2SiY2
表示的硅烷(II-1)、和以通式:
R1 3SiOSiR1 3
表示的二硅氧烷(III-1)在酸或碱的存在下,进行水解、缩合反应。
硅烷(I)是用于向所获得的有机聚硅氧烷中导入以式:R3SiO3/2表示的硅氧烷单元的原料。式中,R3为碳数为1~12的烷基、碳数为6~20的芳基、或者碳数为7~20的芳烷基,可例示与上述同样的基团。另外,式中,Y为烷氧基、酰氧基、卤原子或羟基。具体地可例示甲氧基、乙氧基、丙氧基等烷氧基;乙酰氧基等酰氧基;氯原子、溴原子等卤原子。
作为该硅烷(I),可例示苯基三甲氧基硅烷、萘基三甲氧基硅烷、蒽基三甲氧基硅烷、菲基三甲氧基硅烷、芘基三甲氧基硅烷、苯基三乙氧基硅烷、萘基三乙氧基硅烷、蒽基三乙氧基硅烷、菲基三乙氧基硅烷、芘基三乙氧基硅烷、甲基三甲氧基硅烷、乙基三甲氧基硅烷、甲基三乙氧基硅烷等烷氧基硅烷;苯基三乙酰氧基硅烷、萘基三乙酰氧基硅烷、蒽基三乙酰氧基硅烷、菲基三乙酰氧基硅烷、芘基三乙酰氧基硅烷、甲基三乙酰氧基硅烷、乙基三乙酰氧基硅烷等酰氧基硅烷;苯基三氯硅烷、萘基三氯硅烷、蒽基三氯硅烷、菲基三氯硅烷、芘基三氯硅烷、甲基三氯硅烷、乙基三氯硅烷等卤代硅烷;苯基三羟基硅烷、萘基三羟基硅烷、蒽基三羟基硅烷、菲基三羟基硅烷、芘基三羟基硅烷、甲基三羟基硅烷、乙基三羟基硅烷等羟基硅烷。
此外,硅烷(II-1)是用于向所获得的有机聚硅氧烷中导入以式:R2 2SiO2/2表示的硅氧烷单元的原料。式中,R2为相同或不同的碳数为1~12的烷基、或者碳数为2~12的烯基,可例示与上述同样的基团。另外,式中,Y为烷氧基、酰氧基、卤原子或羟基,可例示与上述同样的基团。
作为该硅烷(II-1),可例示二甲基二甲氧基硅烷、二乙基二甲氧基硅烷、二丙基二甲氧基硅烷、甲基乙基二甲氧基硅烷、甲基乙烯基二甲氧基硅烷、二甲基二乙氧基硅烷、二乙基二乙氧基硅烷、二丙基二乙氧基硅烷、甲基乙基二乙氧基硅烷、甲基乙烯基二乙氧基硅烷等二烷氧基硅烷;二甲基二乙酰氧基硅烷、甲基乙基二乙酰氧基硅烷、甲基乙烯基二乙酰氧基硅烷等二乙酰氧基硅烷;二甲基二氯硅烷、二乙基二氯硅烷、二丙基二氯硅烷、甲基乙基二氯硅烷、甲基乙烯基二氯硅烷等二卤代硅烷;二甲基二羟基硅烷、二乙基二羟基硅烷、二丙基二羟基硅烷、甲基乙基二羟基硅烷、甲基乙烯基二羟基硅烷等二羟基硅烷。
另外,二硅氧烷(III-1)是用于向所获得的有机聚硅氧烷中导入以式:R1 3SiO1/2表示的硅氧烷单元的原料。式中,R1为相同或不同的碳数为1~12的烷基、碳数为2~12的烯基、碳数为6~20的芳基、或者碳数为7~20的芳烷基,可例示与上述同样的基团。
作为该二硅氧烷(III-1),可例示1,1,1,3,3,3-六甲基二硅氧烷、1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷、1,3-二乙烯基-1,1,3,3-四乙基二硅氧烷、1,1,3,3-四乙烯基-1,3-二甲基二硅氧烷、1,1,1,3,3,3-六乙烯基二硅氧烷、1,3-二苯基-1,3-二乙烯基-1,3-二甲基二硅氧烷、1,1,3,3-四苯基-1,3-二乙烯基二硅氧烷。
在上述方法中,可以代替硅烷(II-1)或者在硅烷(II-1)的基础上使用以通式:
(R2 2SiO)p
表示的环状硅氧烷(II-2)。式中,R2为相同或不同的碳数为1~12的烷基、或者碳数为2~12的烯基,可例示与上述同样的基团。另外,式中,p为3以上的整数。
作为该环状硅氧烷(II-2),可例示1,1,3,3,5,5,7,7-八甲基环四硅氧烷、1,3,5,7-四乙烯基-1,3,5,7-四甲基环四硅氧烷、1,1,3,3,5,5,7,7-八乙基环四硅氧烷。
另外,在上述方法中,可以代替硅烷(II-1)和环状硅氧烷(II-2)或者在硅烷(II-1)和/或环状硅氧烷(II-2)的基础上,使用以通式:
HO(R2 2SiO)qH
表示的直链状硅氧烷(II-3)。式中,R2为相同或不同的碳数为1~12的烷基、或者碳数为2~12的烯基,可例示与上述同样的基团。另外,式中,q为2以上的整数。
作为该直链状硅氧烷(II-3),可例示分子链两末端均由硅烷醇基封端的二甲基硅氧烷低聚物、分子链两末端均由硅烷醇基封端的甲基乙烯基硅氧烷低聚物、分子链两末端均由硅烷醇基封端的二乙基硅氧烷低聚物、分子链两末端均由硅烷醇基封端的二丙基硅氧烷低聚物。
另外,在上述方法中,可以代替二硅氧烷(III-1)或者在二硅氧烷(III-1)的基础上使用以通式:
R1 3SiY
表示的硅烷(III-2)。式中,R1为相同或不同的碳数为1~12的烷基、碳数为2~12的烯基、碳数为6~20的芳基、或者碳数为7~20的芳烷基,可例示与上述同样的基团。另外,式中,Y为烷氧基、酰氧基、卤原子或羟基,可例示与上述同样的基团。
作为这样的硅烷(III-2),可例示三甲基甲氧基硅烷、三乙基甲氧基硅烷、二甲基乙烯基甲氧基硅烷、二乙基乙烯基甲氧基硅烷、二甲基乙烯基乙氧基硅烷、二乙基乙烯基乙氧基硅烷、二乙烯基甲基甲氧基硅烷、三乙烯基甲氧基硅烷、甲基苯基乙烯基甲氧基硅烷、甲基二苯基甲氧基硅烷、二苯基乙烯基甲氧基硅烷等烷氧基硅烷;三甲基乙酰氧基硅烷、二甲基乙烯基乙酰氧基硅烷、二乙基乙烯基乙酰氧基硅烷、二乙烯基甲基乙酰氧基硅烷、三乙烯基乙酰氧基硅烷、甲基苯基乙烯基乙酰氧基硅烷、甲基二苯基乙酰氧基硅烷、二苯基乙烯基乙酰氧基硅烷等酰氧基硅烷;三甲基氯硅烷、二甲基乙烯基氯硅烷、二乙基乙烯基氯硅烷、二乙烯基甲基氯硅烷、三乙烯基氯硅烷、甲基苯基乙烯基氯硅烷、甲基二苯基氯硅烷等卤代硅烷;三甲基羟基硅烷、二甲基乙烯基羟基硅烷、二乙基乙烯基羟基硅烷、二乙烯基甲基羟基硅烷、三乙烯基羟基硅烷、甲基苯基乙烯基羟基硅烷、甲基二苯基羟基硅烷等羟基硅烷。
另外,在上述方法中,可以根据需要使用于导入以式:SiO4/2表示的硅氧烷单元的硅烷或硅氧烷低聚物与所获得的有机聚硅氧烷反应。作为这样的硅烷,可例示四甲氧基硅烷、四乙氧基硅烷等烷氧基硅烷;四乙酰氧基硅烷等酰氧基硅烷;四氯硅烷等卤代硅烷。另外,作为硅氧烷低聚物,可例示四甲氧基硅烷的部分水解物、四乙氧基硅烷的部分水解物。
在上述方法中,其特征在于,将硅烷(I)、硅烷(II-1)和二硅氧烷(III-1)、或者代替硅烷(II-1)或在硅烷(II-1)的基础上的环状二硅氧烷(II-2)和/或直链状硅氧烷(II-3)、进一步代替二硅氧烷(III-1)或在二硅氧烷(III-1)的基础上的硅烷(III-2)、以及进一步根据需要的其他硅烷或硅氧烷低聚物在酸或碱的存在下进行水解、缩合反应。需要说明的是,在上述制备方法中所用的硅烷(I)的至少1种具有碳数为6~20的芳基或碳数为7~20的芳烷基,硅烷(II-1)、环状二硅氧烷(II-2)、直链状硅氧烷(II-3)、二硅氧烷(III-1)以及硅烷(III-2)的至少1种具有碳数为2~12的烯基。
另外,作为上述方法中所用的酸,可例示盐酸、乙酸、甲酸、硝酸、草酸、硫酸、磷酸、多磷酸、多元羧酸、三氟甲烷磺酸、离子交换树脂。另外,作为上述方法中使用的碱,可例示氢氧化钾、氢氧化钠等无机碱;三乙基胺、二乙基胺、单乙醇胺、二乙醇胺、三乙醇胺、氨水、四甲基氢氧化铵、具有氨基的烷氧基硅烷、氨基丙烷三甲氧基硅烷等有机碱化合物。
另外,在上述方法中,可以使用有机溶剂。作为该有机溶剂,可例示醚类、酮类、乙酸酯类、芳香族或脂肪族烃、γ-丁内酯和它们2种以上的混合物。作为优选的有机溶剂,可例示丙二醇单甲醚、丙二醇单甲醚乙酸酯、丙二醇单乙醚、丙二醇单丙醚、丙二醇单丁醚、丙二醇单叔丁醚、γ-丁内酯、甲苯、二甲苯。
在上述方法中,为了促进水解、缩合反应,优选添加水或水与醇的混合液。作为该醇,优选甲醇、乙醇。另外,该反应利用加热而促进其进程,在使用有机溶剂的情况下,优选以其回流温度进行反应。
(B)成分为一分子中具有至少2个烯基的直链状的有机聚硅氧烷。作为(B)成分中的烯基,可例示乙烯基、烯丙基、丁烯基、戊烯基、己烯基、庚烯基、辛烯基、壬烯基、癸烯基、十一碳烯基、十二碳烯基,优选为乙烯基。另外,作为(B)成分中的烯基以外的与硅原子键合的基团,可例示甲基、乙基、丙基、丁基、戊基、己基、庚基、辛基、壬基、癸基、十一烷基、十二烷基等烷基;苯基、甲苯基、二甲苯基、萘基、蒽基、菲基、芘基等芳基;苄基、苯乙基、萘乙基、萘丙基、蒽乙基、菲乙基、芘乙基等芳烷基;以及用氯原子、溴原子等卤素原子部分或全部取代了与这些基团键合的氢原子的基团,优选为甲基、苯基。对于(B)成分在25℃下的粘度没有限定,优选为10~10,000,000mPa·s的范围内,10~1,000,000mPa·s的范围内,或者10~100,000mPa·s的范围内。这是因为,当(B)成分的粘度为上述范围的下限以上时,获得的硬化物的机械特性提高,另一方面是因为,当(B)成分的粘度为上述范围的上限以下时,获得的组合物的处理操作性提高。
作为(B)成分,可列举如下的有机聚硅氧烷。需要说明的是,式中,Me、Vi、Ph分别表示甲基、乙烯基、苯基,m和m’分别为1以上的整数。
ViMe2SiO(Me2SiO)mSiMe2Vi
ViPhMeSiO(Me2SiO)mSiMePhVi
ViPh2SiO(Me2SiO)mSiPh2Vi
ViMe2SiO(Me2SiO)m(Ph2SiO)m’SiMe2Vi
ViPhMeSiO(Me2SiO)m(Ph2SiO)m’SiPhMeVi
ViPh2SiO(Me2SiO)m(Ph2SiO)m’SiPh2Vi
ViMe2SiO(MePhSiO)mSiMe2Vi
MePhViSiO(MePhSiO)mSiMePhVi
Ph2ViSiO(MePhSiO)mSiPh2Vi
ViMe2SiO(Ph2SiO)m(PhMeSiO)m’SiMe2Vi
ViPhMeSiO(Ph2SiO)m(PhMeSiO)m’SiPhMeVi
ViPh2SiO(Ph2SiO)m(PhMeSiO)m’SiPh2Vi
在本组合物中,相对于(A)成分100质量份,(B)成分的含量为0.1~60质量份的范围内,优选为0.1~50质量份的范围内或0.1~40质量份的范围内。这是因为,当(B)成分的含量为上述范围的下限以上时,能够赋予硬化物柔软性,另一方面是因为,当(B)成分的含量为上述范围的上限以下时,获得的硬化物的机械特性良好。
(C)成分是一分子中具有至少2个与硅原子键合的氢原子的有机聚硅氧烷。作为(C)成分的分子结构,可例示例如:直链状、一部分具有支链的直链状、支链状、环状和树枝状。优选为直链状、一部分具有支链的直链状、树枝状。对于(C)成分中的与硅原子键合的氢原子的键合位置没有限定,可列举例如分子链末端和/或分子链侧链。另外,作为(C)成分中的水素原子以外的与硅原子键合的基团,可例示甲基、乙基、丙基、丁基、戊基、己基、庚基、辛基、壬基、癸基、十一烷基、十二烷基等烷基;苄基、苯乙基、萘乙基、萘丙基、蒽乙基、菲乙基、芘乙基等芳烷基;氯甲基、3-氯丙基、3,3,3-三氟丙基等卤化烷基;3-环氧丙氧基丙基、4-环氧丙氧基丁基等环氧丙氧基烷基;2-(3,4-环氧环己基)乙基、3-(3,4-环氧环己基)丙基等环氧环己基烷基。另外,对于(C)成分在25℃下的粘度没有限定,优选为1~10,000mPa·s的范围内,或者为1~1,000mPa·s的范围内。
作为(C)成分,可例示1,1,3,3-四甲基二硅氧烷、1,3,5,7-四甲基环四硅氧烷、三(二甲基氢甲硅烷氧基)甲基硅烷、三(二甲基氢甲硅烷氧基)苯基硅烷、1-(3-环氧丙氧基丙基)-1,3,5,7-四甲基环四硅氧烷、1,5-二(3-环氧丙氧基丙基)-1,3,5,7-四甲基环四硅氧烷、1-(3-环氧丙氧基丙基)-5-三甲氧基甲硅烷基乙基-1,3,5,7-四甲基环四硅氧烷、分子链两末端均用三甲基甲硅烷氧基封端的甲基氢聚硅氧烷、分子链两末端均用三甲基甲硅烷氧基封端的二甲基硅氧烷/甲基氢硅氧烷共聚物、分子链两末端均用二甲基氢甲硅烷氧基封端的二甲基聚硅氧烷、分子链两末端均用二甲基氢甲硅烷氧基封端的二苯基硅氧烷、分子链两末端均用二甲基氢甲硅烷氧基封端的二甲基硅氧烷/甲基氢硅氧烷共聚物、分子链两末端均用三甲基甲硅烷氧基封端的甲基氢硅氧烷/二苯基硅氧烷共聚物、分子链两末端均用三甲基甲硅烷氧基封端的甲基氢硅氧烷/二苯基硅氧烷/二甲基硅氧烷共聚物、三甲氧基硅烷的水解缩合物、由(CH3)2HSiO1/2单元与SiO4/2单元构成的共聚物、由(CH3)2HSiO1/2单元、SiO4/2单元与(C6H5)SiO3/2单元构成的共聚物和它们的2种以上的混合物。
进一步,作为(C)成分,还可例示如下的有机硅氧烷。需要说明的是,式中,Me、Ph、Naph分别表示甲基、苯基、萘基,n和n’分别为1以上的整数,i、j、k和l分别为满足0<i<1、0<j<1、0<k<1、0<1<1、且i+j+k+l=1的数。
HMe2SiO(Ph2SiO)nSiMe2H
HMePhSiO(Ph2SiO)nSiMePhH
HMePhNaphSiO(Ph2SiO)nSiMeNaphH
HMePhSiO(Ph2SiO)n(MePhSiO)n’SiMePhH
HMePhSiO(Ph2SiO)n(Me2SiO)n’SiMePhH
(HMe2SiO1/2)i(PhSiO3/2)j
(HMePhSiO1/2)i(PhSiO3/2)j
(HMePhSiO1/2)i(NaphSiO3/2)j
(HMe2SiO1/2)i(NaphSiO3/2)j
(HMePhSiO1/2)i(HMe2SiO1/2)j(PhSiO3/2)k
(HMe2SiO1/2)i(SiO4/2)j
(HMe2SiO1/2)i(SiO4/2)j(PhSiO3/2)k
(HMePhSiO1/2)i(SiO4/2)j(PhSiO3/2)k
(HMe2SiO1/2)i(SiO4/2)j(NaphSiO3/2)k
(HMePhSiO1/2)i(SiO4/2)j(NaphSiO3/2)k
(HMePhSiO1/2)i(HMe2SiO1/2)j(NaphSiO3/2)k
(HMePhSiO1/2)i(HMe2SiO1/2)j(SiO4/2)k(NaphSiO3/2)1
(HMePhSiO1/2)i(HMe2SiO1/2)j(SiO4/2)k(PhSiO3/2)1
在本组合物中,对于(C)成分的含量而言,相对于(A)成分和(B)成分中所含的烯基的合计1摩尔,本成分中所含的与硅原子键合的氢原子的含量为0.1~10摩尔的范围内,优选为0.5~5摩尔的范围内。这是因为,当(C)成分的含量为上述范围的下限以上时,获得的组合物充分硬化,另一方面是因为,当(C)成分的含量为上述范围的上限以下时,获得的硬化物的耐热性有所提高,进而使用本组合物制作的光半导体装置的可靠性有所提高。
(D)成分为用于促进本组合物硬化的氢化硅烷化反应用催化剂。作为(D)成分,可例示铂类催化剂、铑类催化剂、钯类催化剂,优选为铂类催化剂。作为该铂类催化剂,可例示铂微细粉末、铂黑、铂负载硅微细粉末、铂负载活性炭、氯铂酸、氯铂酸的醇溶液、铂的烯烃络合物、铂的烯基硅氧烷络合物等铂类化合物。
在本组合物中,(D)成分的含量为促进本组合物硬化的量,具体而言,相对于本组合物,该催化剂中的金属原子以质量单位计为0.01~1,000ppm的范围内的量。这时因为,当(D)成分的含量为上述范围的下限以上时,获得的组合物的硬化充分进行,另一方面是因为,当(D)成分的含量为上述范围的上限以下时,获得的硬化物难以着色。
对于本组合物而言,为了延长在常温下的使用寿命、提高保存稳定性,还可以含有(E)氢化硅烷化反应抑制剂。作为(E)成分,可例示1-环己乙炔-1-醇、2-甲基-3-丁炔-2-醇、3,5-二甲基-1-己炔-3-醇、2-苯基-3-丁炔-2-醇等炔醇;3-甲基-3-戊烯-1-炔、3,5-二甲基-3-己烯-1-炔等烯炔化合物;1,3,5,7-四甲基-1,3,5,7-四乙烯基环四硅氧烷、1,3,5,7-四甲基-1,3,5,7-四己烯基环四硅氧烷等甲基烯基硅氧烷低聚物;二甲基双(3-甲基-1-丁炔-3-氧)硅烷、甲基乙烯基双(3-甲基-1-丁炔-3-氧)硅烷等烷氧基硅烷、三烯丙基异氰脲酸酯类化合物。
对于(E)成分的含量没有限定,相对于上述(A)成分~(C)成分的合计100质量份,优选为0.01~3质量份的范围内,或者为0.01~1质量份的范围内。这是因为,当(E)成分的含量为上述范围的下限以上时,本组合物具有适当的使用寿命,另一方面是因为,当(E)成分的含量为上述范围的上限以下时,本组合物具有适当的操作性。
进一步,对于本组合物而言,为了进一步提高对于硬化中接触的基材的粘接性,可以含有(F)粘接促进剂。作为(F)成分,优选一分子中具有至少1个与硅原子键合的烷氧基的有机硅化合物。作为该烷氧基,可例示甲氧基、乙氧基、丙氧基、丁氧基和甲氧基乙氧基,优选为甲氧基、乙氧基。另外,作为该有机硅化合物中与硅原子键合的烷氧基以外的基团,可例示甲基、乙基、丙基、丁基、戊基、己基、庚基、辛基、壬基、癸基、十一烷基、十二烷基等烷基;乙烯基、烯丙基、丁烯基、戊烯基、己烯基、庚烯基、辛烯基、壬烯基、癸烯基、十一碳烯基、十二碳烯基等烯基;苯基、甲苯基、二甲苯基、萘基、蒽基、菲基、芘基等芳基;苄基、苯乙基、萘乙基、萘丙基、蒽乙基、菲乙基、芘乙基等芳烷基;以及用氯原子、溴原子等卤素原子部分或全部取代了与这些基团键合的氢原子的基团;3-环氧丙氧基丙基、4-环氧丙氧基丁基等环氧丙氧基烷基;2-(3,4-环氧环己基)乙基、3-(3,4―环氧环己基)丙基等环氧环己基烷基;4-环氧乙基丁基、以及8-环氧乙基辛基等环氧乙基烷基;3-甲基丙烯酰氧基丙基等丙烯酰氧基烷基;以及异氰酸基、异氰脲酸基、氢原子。
该有机硅化合物优选具有可与本组合物中的烯基或与硅原子键合的氢原子发生反应的基团,具体而言,优选具有与硅原子键合的氢原子或烯基。作为该硅化合物的分子结构,可例示直链状、一部分具有支链的直链状、支链状、环状、网状,尤其是优选直链状、支链状、网状。作为这样的有机硅化合物,可例示3-环氧丙氧基丙基三甲氧基硅烷、2-(3,4-环氧环己基)乙基三甲氧基硅烷、3-甲基丙烯酰氧丙基三甲氧基硅烷等硅烷化合物;一分子中分别具有至少1个与硅原子键合的烯基或与硅原子键合的氢原子、以及与硅原子键合的烷氧基的硅氧烷化合物、具有至少1个与硅原子键合的烷氧基的硅烷化合物或硅氧烷化合物和一分子中分别具有至少1个与硅原子键合的羟基和与硅原子键合的烯基的硅氧烷化合物的混合物、以平均单元式:
[化学式1]
(式中,r、s和t分别为正数)
表示的硅氧烷化合物、以平均单元式:
[化学式2]
(式中,r、s、t和u分别为正数)
表示的硅氧烷化合物。
对于(F)成分的含量没有限定,相对于上述(A)成分~(C)成分的合计100质量份,优选为0.1~5质量份的范围内,或者为1~5质量份的范围内。这是因为,当(F)成分的含量为上述范围的下限以上时,粘合性良好,另一方面是因为,当(F)成分的含量为上述范围的上限以下时,保存稳定性良好。
进一步,对于本组合物而言,为了变换来自光半导体元件的发光波长,可以含有(G)荧光体。作为(G)成分,例如,可列举广泛利用于发光二极管(LED)中的由氧化物类荧光体、氮氧化物类荧光体、氮化物类荧光体、硫化物类荧光体、硫氧化物类荧光体等构成的黄色、红色、绿色、以及蓝色发光荧光体。作为氧化物类荧光体,可例示:包含铈离子的钇、铝、石榴石类的YAG类绿色~黄色发光荧光体、包含铈离子的铽、铝、石榴石类的TAG类黄色发光荧光体、以及包含铈和铕离子的硅酸盐类绿色~黄色发光荧光体。作为氮氧化物类荧光体,可例示:包含铕离子的硅、铝、氧、氮类的硅铝氧氮类红色~绿色发光荧光体。作为氮化物类荧光体,可例示:包含铕离子的钙、锶、铝、硅、氮类的CASN(CaAlSiN3)类红色发光荧光体。作为硫化物类荧光体,可例示:包含铜离子或铝离子的ZnS类绿色发光荧光体。作为硫氧化物类荧光体,可例示:包含铕离子的Y2O2S类红色发光荧光体。可以组合2种以上这些荧光体进行使用。
对于(G)成分的平均粒径没有限定,优选为1~50μm的范围内,或者为5~20μm的范围内。这是因为,当(G)成分的平均粒径为上述范围的下限以上时,可抑制混合时的粘度上升,另一方面是因为,当(G)成分的平均粒径为上述范围的上限以下时,光透过性良好。
相对于上述(A)成分~(C)成分的总量,(G)成分的含量为0.1~70质量百分比的范围内,优选为1~70质量百分比的范围内,或者5~70质量百分比的范围内。这是因为,当(G)成分的含量为上述范围的下限以上时,能够有效地进行波长变换,另一方面是因为,当(G)成分的含量为上述范围的上限以下时,获得的组合物的操作性有所提高。
进一步,为了充分抑制由于空气中的含硫气体导致的光半导体装置中的电极、基板的镀银的变色,本组合物可以含有选自由以选自由Al、Ag、Cu、Fe、Sb、Si、Sn、Ti、Zr和稀土元素组成的组中的至少一种元素的氧化物进行表面覆盖的氧化锌微细粉末、以不具有烯基的有机硅化合物进行表面处理的氧化锌微细粉末、以及碳酸锌水合物微细粉末组成的组中的、且平均粒径为0.1nm~5μm的至少一种微细粉末。
以氧化物进行表面覆盖的氧化锌微细粉末中,作为稀土元素,可例示:钇、铈、铕。作为氧化锌微细粉末的表面的氧化物,可例示Al2O3、AgO、Ag2O、Ag2O3、CuO、Cu2O、FeO、Fe2O3、Fe3O4、Sb2O3、SiO2、SnO2、Ti2O3、TiO2、Ti3O5、ZrO2、Y2O3、CeO2、Eu2O3、以及这些氧化物的2种以上的混合物。
对于该粉末的含量没有限定,相对于本组合物,以质量单位计优选为1ppm~10%的范围内的量或1ppm~5%的范围内的量。这是因为,当该粉末的含量为上述范围的下限以上时,能够充分抑制由于含硫气体导致的光半导体装置中的电极或基板的镀银的变色,另一方面是因为,当该粉末的含量为上述范围的上限以下时,不会损害获得的组合物的流动性。
另外,对于本组合物而言,从能够进一步抑制由于空气中的含硫气体导致的光半导体装置中的电极或基板的镀银的变色的方面考虑,可以含有三唑类化合物。作为三唑类化合物,可示例1H-1,2,3-三唑、2H-1,2,3-三唑、1H-1,2,4-三唑、4H-1,2,4-三唑、2-(2′-羟基-5′-甲基苯基)苯并三唑、1H-1,2,3-三唑、2H-1,2,3-三唑、1H-1,2,4-三唑、4H-1,2,4-三唑、苯并三唑、甲苯并三唑、羧基苯并三唑、1H-苯并三唑-5-羧酸甲酯、3-氨基-1,2,4-三唑、4-氨基-1,2,4-三唑、5-氨基-1,2,4-三唑、3-巯基-1,2,4-三唑、氯苯并三唑、硝基苯并三唑、氨基苯并三唑、环己酮[1,2-d]三唑、4,5,6,7-四羟基甲苯并三唑、1-羟基苯并三唑、乙基苯并三唑、萘基三唑、1-N,N-二(2-乙基己基)-[(1,2,4-三唑-1-基)甲基]胺、1-[N,N-双(2-乙基己基)氨基甲基]苯并三唑、1-[N,N-双(2-乙基己基)氨基甲基]甲苯并三唑、1-[N,N-双(2-乙基己基)氨基甲基]羧基苯并三唑、1-[N,N-双(2-羟乙基)-氨基甲基]苯并三唑、1-[N,N-双(2-羟基乙基)-氨基甲基]甲苯并三唑、1-[N,N-双(2-羟乙基)-氨基甲基]羧基苯并三唑、1-[N,N-双(2-羟丙基)氨基甲基]羧基苯并三唑、1-[N,N-双(1-丁基)氨基甲基]羧基苯并三唑、1-[N,N-双(1-辛基)氨基甲基]羧基苯并三唑、1-(2′,3′-二-羟基丙基)苯并三唑、1-(2′,3′-二-羧基乙基)苯并三唑、2-(2′-羟基-3′,5′-二叔丁基苯基)苯并三唑、2-(2′-羟基-3′,5′-氨基苯基)苯并三唑、2-(2′-羟基-4′-辛氧基苯基)苯并三唑、2-(2′-羟基-5′-叔丁基苯基)苯并三唑、1-羟基苯并三唑-6-羧酸、1-油酰苯并三唑、1,2,4-三唑-3-醇、5-氨基-3-巯基-1,2,4-三唑、5-氨基-1,2,4-三唑-3-甲酸、1,2,4-三唑-3-甲酰胺、4-氨基脲唑、1,2,4-三唑-5-酮。对于该三唑类化合物的含量没有特别限定,在本组合物中,以质量单位计为0.01ppm~3%的范围内的量,优选为0.1ppm~1%的范围内的量。
进一步,对于本组合物而言,只要不损害本发明的目的,则作为其他任意成分,可以含有二氧化硅、玻璃、氧化铝、氧化锌等无机质填充剂;聚甲基丙烯酸酯树脂等有机树脂微细粉末;耐热剂、染料、颜料、阻燃性赋予剂、溶剂等。
对于本组合物在25℃的粘度没有限定,优选为100~500,000mPa·s的范围内,或者为100~100,000mPa·s的范围内。这样的本组合物在室温中或进行加热后会硬化,为了快速硬化,优选进行加热。作为该加热温度,优选为50~200℃的范围内。
接着,对于本发明的硬化物进行详细说明。
本发明的硬化物的特征在于,其将上述硬化性硅组合物硬化而成。对于硬化物的形状没有特别限定,可列举例如薄片状、薄膜状。另外,该硬化物可以为密封或覆盖光半导体元件等的状态。
接着,对于本发明的光半导体装置进行详细说明。
本发明的光半导体装置的特征在于,其将光半导体元件利用上述硬化性硅组合物的硬化物密封、或覆盖而成。作为这样的本发明的光半导体装置,可例示发光二极管(LED)、光电耦合器、CCD。此外,作为光半导体元件,可列举发光二极管(LED)芯片、固体摄像元件。
本发明的光半导体装置的一例的单体表面安装型LED的截面图如图1所示。图1中显示的LED将光半导体元件1芯片焊接在引线框2上,并且利用焊线4将该光半导体元件1与引线框3进行引线焊接。在该光半导体元件1的周围设置有框部件5,该框部件5的内侧的光半导体元件1由本发明的硬化性硅组合物的硬化物6进行密封。
作为制造图1所示的表面安装型LED的方法,可例示下述方法:在引线框2上芯片焊接光半导体元件1,将该半导体元件1与引线框3利用金制的焊线4引线焊接,接着,在设置于光半导体元件1周围的框部件5的内侧填充本发明硬化性硅组合物,然后通过在50~200℃进行加热而使其硬化。
实施例
以下,通过实施例详细说明本发明的硬化性硅组合物、其硬化物以及光半导体装置。需要说明的是,实施例中的粘度为25℃时的值,式中,Me、Vi、Ph、以及Ep分别表示甲基、乙烯基、苯基、3-环氧丙氧基丙基。另外,如下测定硬化性硅组合物及其硬化物的特性,将该结果示于表1。
[硬化性硅组合物的折射率]
利用阿贝折射计对硬化性硅组合物在25℃时的折射率进行测定。需要说明的是,测定中使用589nm的光源。
[荧光体的分散性]
相对于硬化性硅组合物100质量份,利用牙科搅拌机混合YAG类荧光体(INTEMATIX公司制造的MX311(B))3质量份作为(G)成分。之后,将含有荧光体的硬化性硅组合物涂布在玻璃板上,在150℃的烘箱中加热1小时,由此使其硬化。目视观察所获得的硬化物中的荧光体的分散状态,将对其结果进行如下评价。
○:荧光体均匀分散。
Δ:荧光体的一部分凝聚。
×:荧光体的大部分凝聚。
[耐裂性]
相对于硬化性硅组合物100质量份,利用牙科搅拌机混合YAG类荧光体(INTEMATIX公司制造的MX311(B))50质量份作为(G)成分,制备含荧光体的硬化性硅组合物。
接着,使用该含荧光体的硬化性硅组合物,制成图1所示的光半导体装置。需要说明的是,硬化性硅组合物在150℃下加热3小时,使其硬化。对所获得的光半导体装置施加520mA的电荷,在85℃、湿度85%的条件下使其亮灯,进行耐久试验。400小时后使用电子显微镜对密封材料的外观进行确认,如下评价其结果。
○:密封材料上未观察到裂纹。
Δ:一部分的密封材料上观察到裂纹。
×:所有的密封材料上皆观察到裂纹。
[合成例1]
在带搅拌机、回流冷凝器、温度计的四口烧瓶中,投入1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷70.6g(0.38mol)、八甲基环四硅氧烷56.2g(0.19mol)、苯基三甲氧基硅烷450.5g(2.27mol)、以及三氟甲烷磺酸0.35g,在搅拌下,用时30分钟滴加水122.8g(6.81mol)。滴加结束后,加热至85℃,蒸馏除去生产的甲醇。接着,投入甲苯105g以及30质量百分比的氢氧化钾水溶液2.8g,使水共沸脱水。之后,在125℃保持6小时后,冷却至室温,用醋酸0.9g进行中和。对生成的盐进行过滤后,从所获得的透明溶液中加热减压去除低沸点物,制备无色透明且数均分子量为1,400的、以平均单元式:
(ViMe2SiO1/2)0.20(Me2SiO2/2)0.20(PhSiO3/2)0.60
表示的有机聚硅氧烷400g(收率:95%)。
[合成例2]
在带搅拌机、回流冷凝器、温度计的四口烧瓶中,投入1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷54.7g(0.29mol)、八甲基环四硅氧烷87.1g(0.29mol)、苯基三甲氧基硅烷427.0g(2.15mol)、以及三氟甲烷磺酸0.34g,在搅拌下,用时30分钟滴加水110.8g(6.15mol)。滴加结束后,加热至85℃,蒸馏除去生产的甲醇。投入甲苯105g以及30质量百分比的氢氧化钾水溶液2.8g,使水共沸脱水。之后,在125℃保持6小时后,冷却至室温,用醋酸0.9g进行中和。对生成的盐进行过滤后,从所获得的透明溶液中加热减压去除低沸点物,制备无色透明且数均分子量为1,800的、以平均单元式:
(ViMe2SiO1/2)0.15(Me2SiO2/2)0.30(PhSiO3/2)0.55
表示的有机聚硅氧烷400g(收率:95%)。
[合成例3]
在带搅拌机、回流冷凝器、温度计的四口烧瓶中,投入1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷63.4g(0.34mol)、1,3,5,7-四苯基-1,3,5,7-四甲基环四硅氧烷92.7g(0.17mol)、苯基三甲氧基硅烷404.9g(2.04mol)、以及三氟甲烷磺酸0.35g,在搅拌下,用时30分钟滴加水110.4g(6.13mol)。滴加结束后,加热至85℃,蒸馏除去生产的甲醇。投入甲苯105g以及30质量百分比的氢氧化钾水溶液2.8g,使水共沸脱水。之后,在125℃保持6小时后,冷却至室温,用醋酸0.9g进行中和。对生成的盐进行过滤后,从所获得的透明溶液中加热减压去除低沸点物,制备无色透明且数均分子量为1,300的、以平均单元式:
(ViMe2SiO1/2)0.20(PhMeSiO2/2)0.20(PhSiO3/2)0.60
表示的有机聚硅氧烷400g(收率:95%)。
[合成例4]
在带搅拌机、回流冷凝器、温度计的四口烧瓶中,投入1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷46.6g(0.25mol)、1,3,5,7-四苯基-1,3,5,7-四甲基环四硅氧烷136.3g(0.25mol)、苯基三甲氧基硅烷363.8g(1.83mol)、以及三氟甲烷磺酸0.35g,在搅拌下,用时30分钟滴加水99.2g(5.50mol)。滴加结束后,加热至85℃,蒸馏除去生产的甲醇。投入甲苯105g以及30质量百分比的氢氧化钾水溶液2.8g,使水共沸脱水。之后,在125℃保持6小时后,冷却至室温,用醋酸0.9g进行中和。对生成的盐进行过滤后,从所获得的透明溶液中加热减压去除低沸点物,制备无色透明且数均分子量为1,400的、以平均单元式:
(ViMe2SiO1/2)0.15(PhMeSiO2/2)0.30(PhSiO3/2)0.55
表示的有机聚硅氧烷400g(收率:95%)。
[合成例5]
在反应容器中投入以式:
HO(Me2SiO)12H
表示的二甲基聚硅氧烷40.0g(0.045mol)、甲苯62.0g、以及三甲基胺10.9g(0.107mol),在搅拌下投入乙烯基二苯基氯硅烷22.0g(0.090mol)。在室温下搅拌1小时后,加热至50℃搅拌3小时。之后,投入水,进行水洗后,从有机层加热减压馏去低沸物,制备粘度为36mPa·s,无色透明且折射率为1.466的、以式:
ViPh2SiO(Me2SiO)12SiPh2Vi
表示的有机聚硅氧烷。
[合成例6]
在带搅拌机、回流冷凝器、温度计的四口烧瓶中,投入1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷82.2g(0.44mol)、水143g、三氟甲烷磺酸0.38g、以及甲苯500g,在搅拌下用时1小时滴加苯基三甲氧基硅烷524.7g(2.65mol)。滴下结束后,加热还流1小时。其后进行冷却,并分离下层,对甲苯溶液层水洗3次。在水洗后的甲苯溶液层内投入3-环氧丙氧基丙基甲基二甲氧基硅烷314g(1.42mol)、水130g以及氢氧化钾0.50g,加热回流1小时。接着,馏去甲醇,通过共沸脱水除去过剩的水。加热回流4小时后,冷却甲苯溶液,用醋酸0.55g进行中和,然后水洗3次。除去水后,在减压下蒸馏去除甲苯,调制成粘度为8,500mPa·s且以平均单元式:
(ViMe2SiO1/2)0.18(PhSiO3/2)0.53(EpMeSiO2/2)0.29
表示的粘接赋予剂。
[实施例1~5、比较例1~3]
将下述成分以表1中所示的组成(质量份)进行混合,制备硬化性硅组合物。需要说明的是,表1中的[SiH/Vi]表示相对于(A)成分和(B)成分对应的成分中所含的乙烯基1摩尔,(C)成分对应的成分中所含的与硅原子键合的氢原子的摩尔数。另外,(D)成分的含量以质量单位中的铂金属相对于硬化性硅组合物的含量(ppm)表示。
使用下述成分作为(A)成分。
(A-1)成分:合成例1中制备的、以平均单元式:
(ViMe2SiO1/2)0.20(Me2SiO2/2)0.20(PhSiO3/2)0.60
表示的有机聚硅氧烷(乙烯基相对于与硅原子键合的总有机基团的含有率=12.5摩尔%)
(A-2)成分:合成例2中制备的、以平均单元式:
(ViMe2SiO1/2)0.15(Me2SiO2/2)0.30(PhSiO3/2)0.55
表示的有机聚硅氧烷(乙烯基相对于与硅原子键合的总有机基团的含有率=9.4摩尔%)
(A-3)成分:合成例3中制备的、以平均单元式:
(ViMe2SiO1/2)0.20(PhMeSiO2/2)0.20(PhSiO3/2)0.60
表示的有机聚硅氧烷(乙烯基相对于与硅原子键合的总有机基团的含有率=12.5摩尔%)
(A-4)成分:合成例4中制备的、以平均单元式:
(ViMe2SiO1/2)0.15(PhMeSiO2/2)0.30(PhSiO3/2)0.55
表示的有机聚硅氧烷(乙烯基相对于与硅原子键合的总有机基团的含有率=9.4摩尔%)
(A-5)成分:以平均单元式:
(ViMe2SiO1/2)0.25(PhSiO3/2)0.75
表示的有机聚硅氧烷(乙烯基相对于与硅原子键合的总有机基团的含有率=16.7摩尔%)
使用下述成分作为(B)成分。
(B-1)成分:粘度2,000mPa·s的分子链两末端均由二甲基乙烯基硅氧基封端的苯基甲基聚硅氧烷
(B-2):合成例5中制备的、以式:
ViPh2SiO(Me2SiO)12SiPh2Vi
表示的有机聚硅氧烷
使用下述成分作为(C)成分。
(C-1)成分:粘度4mPa·s且以式:
HMe2SiOPh2SiOSiMe2H
表示的有机聚硅氧烷
(C-2)成分:粘度30mPa·s且以平均单元式:
(HMe2SiO1/2)0.6(PhSiO3/2)0.4
表示的有机聚硅氧烷
使用下述成分作为(D)成分。
(D-1)成分:铂-1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷络合物的1,3,5,7-四甲基-1,3,5,7-四乙烯基环四硅氧烷的溶液(含有0.121质量百分比的铂的溶液)
使用下述成分作为(E)成分。
(E-1)成分:1-乙炔基环己醇
使用下述成分作为(F)成分。
(F-1)成分:合成例6中制备的粘接赋予剂
由表1的结果可以确认,与比较例1~3中制备的硬化性硅组合物相比,实施例1~5中制备的硬化性硅组合物中,荧光体的分散性优异、所获得的硬化物的耐裂性优异。
工业上的可利用性
本发明的硬化性硅组合物的荧光体的分散性良好,硬化后可形成具有耐裂性的硬化物,因此可用作发光二极管(LED)等光半导体装置中的光半导体元件的密封剂、保护涂布剂等。
符号说明
1 光半导体元件
2 引线框
3 引线框
4 焊线
5 框部件
6 硬化性硅组合物的硬化物
Claims (8)
1.一种硬化性硅组合物,其至少由下述成分构成:
(A)以平均单元式
(R1 3SiO1/2)x(R2 2SiO2/2)y(R3SiO3/2)z
表示的有机聚硅氧烷,式中,R1为相同或不同的碳数为1~12的烷基、碳数为2~12的烯基、碳数为6~20的芳基、或者碳数为7~20的芳烷基,R2为相同或不同的碳数为1~12的烷基、或者碳数为2~12的烯基,R3为碳数为1~12的烷基、碳数为6~20的芳基、或者碳数为7~20的芳烷基,其中,一分子中,以所述R1、R2和R3表示的基团的总和的至少0.5摩尔百分比为所述烯基,以所述R3表示的基团的至少1个为所述芳基或者所述芳烷基,x、y和z分别为满足0.01≤x≤0.5、0.01≤y≤0.4、0.1≤z≤0.9、且x+y+z=1的数。
(B)相对于100质量份(A)成分,0.1~60质量份的一分子中具有至少2个烯基的直链状的有机聚硅氧烷;
(C)一分子中具有至少2个与硅原子键合的氢原子的有机聚硅氧烷,其中相对于(A)成分和(B)成分中所含的烯基总量1摩尔,本成分所含的与硅原子键合的氢原子为0.1~10摩尔的量;以及
(D)氢化硅烷化反应用催化剂,其量是可促进本组合物硬化的量。
2.如权利要求1所述的硬化性硅组合物,其中,(A)成分为有机聚硅氧烷,所述有机聚硅氧烷的平均单元式中的R2为相同或不同的碳数为1~12的烷基。
3.如权利要求1或2所述的硬化性硅组合物,其中,(B)成分为分子链两末端的硅原子键合烯基的直链状的有机聚硅氧烷。
4.如权利要求1至3中任一项所述的硬化性硅组合物,其中,进一步含有(E)氢化硅烷化反应抑制剂,所述(E)成分相对于(A)成分~(C)成分的总计100质量份为0.01~3质量份。
5.如权利要求1至4中任一项所述的硬化性硅组合物,其中,进一步含有(F)粘接赋予剂,所述(F)成分相对于(A)成分~(C)成分的合计100质量份为0.1~5质量份。
6.如权利要求1至5中任一项所述的硬化性硅组合物,其中,进一步含有(G)荧光体,所述(G)成分相对于(A)成分~(C)成分的总量为0.1~70质量百分比。
7.一种硬化物,其特征在于,其使权利要求1至6中任一项所述的硬化性硅组合物硬化而成。
8.一种光半导体装置,其特征在于,光半导体元件利用权利要求1至6中任一项所述的硬化性硅组合物的硬化物密封或覆盖。
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