WO2005100445A1 - 光半導体封止用組成物、光半導体封止材および光半導体封止用組成物の製造方法 - Google Patents
光半導体封止用組成物、光半導体封止材および光半導体封止用組成物の製造方法 Download PDFInfo
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- WO2005100445A1 WO2005100445A1 PCT/JP2005/007493 JP2005007493W WO2005100445A1 WO 2005100445 A1 WO2005100445 A1 WO 2005100445A1 JP 2005007493 W JP2005007493 W JP 2005007493W WO 2005100445 A1 WO2005100445 A1 WO 2005100445A1
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- Prior art keywords
- group
- optical semiconductor
- polyorganosiloxane
- composition
- carbon atoms
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 100
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- 229910000077 silane Inorganic materials 0.000 claims abstract description 48
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- 238000005538 encapsulation Methods 0.000 claims description 22
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- 125000004122 cyclic group Chemical group 0.000 claims description 19
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- 125000003710 aryl alkyl group Chemical group 0.000 claims description 6
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- NZUZSTKWRHPHIS-UHFFFAOYSA-N tri(butan-2-yloxy)-(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane Chemical compound CCC(C)O[Si](OC(C)CC)(OC(C)CC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F NZUZSTKWRHPHIS-UHFFFAOYSA-N 0.000 description 1
- RTMADTFOHZKQTE-UHFFFAOYSA-N tri(butan-2-yloxy)-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl)silane Chemical compound CCC(C)O[Si](OC(C)CC)(OC(C)CC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F RTMADTFOHZKQTE-UHFFFAOYSA-N 0.000 description 1
- RJNDDRZGJNVASH-UHFFFAOYSA-N tri(butan-2-yloxy)-methylsilane Chemical compound CCC(C)O[Si](C)(OC(C)CC)OC(C)CC RJNDDRZGJNVASH-UHFFFAOYSA-N 0.000 description 1
- PCDRXIBYKFIRQR-UHFFFAOYSA-N tri(butan-2-yloxy)-phenylsilane Chemical compound CCC(C)O[Si](OC(C)CC)(OC(C)CC)C1=CC=CC=C1 PCDRXIBYKFIRQR-UHFFFAOYSA-N 0.000 description 1
- COKLPZSYWJNYBJ-UHFFFAOYSA-N tri(butan-2-yloxy)silane Chemical compound CCC(C)O[SiH](OC(C)CC)OC(C)CC COKLPZSYWJNYBJ-UHFFFAOYSA-N 0.000 description 1
- HMAGLHWOMNVLHF-UHFFFAOYSA-N tri(butan-2-yloxy)silylmethanol Chemical compound CCC(C)O[Si](CO)(OC(C)CC)OC(C)CC HMAGLHWOMNVLHF-UHFFFAOYSA-N 0.000 description 1
- MGYAETYXWNGOHQ-UHFFFAOYSA-N tributoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane Chemical compound CCCCO[Si](OCCCC)(OCCCC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F MGYAETYXWNGOHQ-UHFFFAOYSA-N 0.000 description 1
- BMYUYLDAQJWBGT-UHFFFAOYSA-N tributoxy(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl)silane Chemical compound CCCCO[Si](OCCCC)(OCCCC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F BMYUYLDAQJWBGT-UHFFFAOYSA-N 0.000 description 1
- GYZQBXUDWTVJDF-UHFFFAOYSA-N tributoxy(methyl)silane Chemical compound CCCCO[Si](C)(OCCCC)OCCCC GYZQBXUDWTVJDF-UHFFFAOYSA-N 0.000 description 1
- INUOIYMEJLOQFN-UHFFFAOYSA-N tributoxy(phenyl)silane Chemical compound CCCCO[Si](OCCCC)(OCCCC)C1=CC=CC=C1 INUOIYMEJLOQFN-UHFFFAOYSA-N 0.000 description 1
- UCSBCWBHZLSFGC-UHFFFAOYSA-N tributoxysilane Chemical compound CCCCO[SiH](OCCCC)OCCCC UCSBCWBHZLSFGC-UHFFFAOYSA-N 0.000 description 1
- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical compound Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 description 1
- PGHWHQUVLXTFLZ-UHFFFAOYSA-N trichloro(fluoro)silane Chemical compound F[Si](Cl)(Cl)Cl PGHWHQUVLXTFLZ-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
- ZLGWXNBXAXOQBG-UHFFFAOYSA-N triethoxy(3,3,3-trifluoropropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCC(F)(F)F ZLGWXNBXAXOQBG-UHFFFAOYSA-N 0.000 description 1
- MLXDKRSDUJLNAB-UHFFFAOYSA-N triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl)silane Chemical compound CCO[Si](OCC)(OCC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F MLXDKRSDUJLNAB-UHFFFAOYSA-N 0.000 description 1
- XVYIJOWQJOQFBG-UHFFFAOYSA-N triethoxy(fluoro)silane Chemical compound CCO[Si](F)(OCC)OCC XVYIJOWQJOQFBG-UHFFFAOYSA-N 0.000 description 1
- UDUKMRHNZZLJRB-UHFFFAOYSA-N triethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OCC)(OCC)OCC)CCC2OC21 UDUKMRHNZZLJRB-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- GKASDNZWUGIAMG-UHFFFAOYSA-N triethyl orthoformate Chemical compound CCOC(OCC)OCC GKASDNZWUGIAMG-UHFFFAOYSA-N 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-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
- PGZGBYCKAOEPQZ-UHFFFAOYSA-N trimethyl-[(2-methylpropan-2-yl)oxy]silane Chemical compound CC(C)(C)O[Si](C)(C)C PGZGBYCKAOEPQZ-UHFFFAOYSA-N 0.000 description 1
- 239000005051 trimethylchlorosilane Substances 0.000 description 1
- MDCWDBMBZLORER-UHFFFAOYSA-N triphenyl borate Chemical compound C=1C=CC=CC=1OB(OC=1C=CC=CC=1)OC1=CC=CC=C1 MDCWDBMBZLORER-UHFFFAOYSA-N 0.000 description 1
- ZVPKMEQEIHFILG-UHFFFAOYSA-N tripropoxy(3,3,3-trifluoropropyl)silane Chemical compound CCCO[Si](CCC(F)(F)F)(OCCC)OCCC ZVPKMEQEIHFILG-UHFFFAOYSA-N 0.000 description 1
- OZWKZRFXJPGDFM-UHFFFAOYSA-N tripropoxysilane Chemical compound CCCO[SiH](OCCC)OCCC OZWKZRFXJPGDFM-UHFFFAOYSA-N 0.000 description 1
- SOLUNJPVPZJLOM-UHFFFAOYSA-N trizinc;distiborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-][Sb]([O-])([O-])=O.[O-][Sb]([O-])([O-])=O SOLUNJPVPZJLOM-UHFFFAOYSA-N 0.000 description 1
- OOLLAFOLCSJHRE-ZHAKMVSLSA-N ulipristal acetate Chemical compound C1=CC(N(C)C)=CC=C1[C@@H]1C2=C3CCC(=O)C=C3CC[C@H]2[C@H](CC[C@]2(OC(C)=O)C(C)=O)[C@]2(C)C1 OOLLAFOLCSJHRE-ZHAKMVSLSA-N 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000005050 vinyl trichlorosilane Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- CHJMFFKHPHCQIJ-UHFFFAOYSA-L zinc;octanoate Chemical compound [Zn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O CHJMFFKHPHCQIJ-UHFFFAOYSA-L 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- 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
-
- 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
- C08L83/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
- C09K3/1018—Macromolecular compounds having one or more carbon-to-silicon linkages
-
- 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
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
- H01L23/293—Organic, e.g. plastic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
- H01L33/56—Materials, e.g. epoxy or silicone resin
Definitions
- Optical semiconductor encapsulating composition Optical semiconductor encapsulating composition, optical semiconductor encapsulating material and
- the present invention relates to a composition for sealing a blue LED or a white LED optical semiconductor, a sealing material for the optical semiconductor, a method for manufacturing an optical semiconductor sealing composition used for the sealing composition, and the like.
- an epoxy compound containing bisphenol A glycidyl ether as a main component has been generally used as an optical semiconductor encapsulation resin, but since such an epoxy compound has an aromatic ring, it emits blue or ultraviolet light.
- the durability against ultraviolet light (UV durability) was insufficient to seal optical semiconductors.
- silsesquioxane-based resins have been proposed as siloxane-based materials that are hard and have high adhesion, and in particular, silsesquioxane-based resins having an epoxy group are used.
- An optical semiconductor encapsulant is disclosed in Japanese Patent Application Laid-Open No. Sho 62-106632.
- Japanese Patent Application Laid-Open No. Sho 62-10663 For potting molding of the indicated silsesquioxane resin, gelation occurs when the solvent is distilled off, which makes molding difficult, and when the film thickness is large, cracks and bubbles are generated. It is not something that can be put to practical use as a material.
- a method for producing a polyorganosiloxane having an epoxy group a method of adding an epoxy derivative having a vinyl group to a polyorganosiloxane having a Si-i ⁇ bond using a platinum, rhodium or ruthenium catalyst is known.
- Japanese Unexamined Patent Application Publication Nos. H01-2997421, H02-0772900, H04-252228, H04-3 No. 5,279,933, Japanese Patent Application Laid-Open No. 08-041,168 and Japanese Patent Application Laid-Open No. 12-103859 Japanese Patent Application Laid-Open No. 08-041,168 and Japanese Patent Application Laid-Open No. 12-103859.
- polyorganosiloxanes containing Si—H are unstable with respect to moisture, are difficult to handle, and have the problem of expensive raw materials. There is also a problem that the remaining catalyst causes coloring. Disclosure of the invention
- the present invention has been made in view of the above-mentioned circumstances, and its purpose is to enable potting molding, and to produce no cracks or bubbles even when the film thickness is thick, and to be colorless and transparent.
- An object of the present invention is to provide an optical semiconductor encapsulation composition capable of forming an optical semiconductor encapsulant having excellent UV durability and heat resistance, and a method for producing the optical semiconductor encapsulation composition.
- X is a monovalent organic group having at least one epoxy group
- Y 1 is a chlorine atom, a bromine atom, an iodine atom, or a linear, branched or cyclic C1-C20 atom.
- R 1 represents a hydrogen atom, a fluorine atom, a linear, branched or cyclic alkyl group having 1 to 20 carbon atoms, a linear, branched or cyclic alkyl group having 1 to 20 carbon atoms.
- a substituted alkyl group a linear, branched or cyclic alkenyl group having 2 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms; n is an integer from 0 to 2,
- Y 2 represents a chlorine atom, a bromine atom, an iodine atom or a linear, branched or cyclic alkoxyl group having 1 to 20 carbon atoms
- R 2 represents a hydrogen atom, a fluorine atom, a carbon atom having 1 to 20 carbon atoms.
- This is achieved by a polyorganosiloxane having a weight-average molecular weight in terms of polystyrene of 500 to 1,000,000, obtained by hydrolysis and condensation.
- silane compound represented by the formula (1) and Z or a partial condensate thereof and the silane compound represented by the formula (2) and / or a partial condensate thereof are combined with an organic solvent, an organic base and water. This is achieved by the method for producing a polyorganosiloxane according to the present invention, wherein the polyorganosiloxane is heated and hydrolyzed and condensed.
- the content of the repeating unit derived from the silane compound represented by the above formula (1) is at least 5 mol% of all the repeating units;
- composition for encapsulating an optical semiconductor characterized by containing (hereinafter, sometimes referred to as an optical semiconductor encapsulating composition [I]).
- the content of the repeating unit derived from the silane compound represented by the above formula (1) is at least 5 mol% of all the repeating units;
- the polyorganosiloxane which satisfies at least one of the following,
- composition for optical semiconductor encapsulation characterized by containing (hereinafter, sometimes referred to as a semiconductor encapsulating composition [II]).
- a method for preparing a semiconductor encapsulating composition [II], which comprises mixing the polyorganosiloxane (A), the carboxylic anhydride (B1) and the curing accelerator (C).
- composition for encapsulating an optical semiconductor characterized by containing hereinafter, sometimes referred to as a composition for encapsulating a semiconductor [III]).
- a method for preparing a third composition of the present invention which comprises mixing a polyorganosiloxane (A) and a thermal acid generator (B 2).
- the present invention is attained by an optical semiconductor encapsulant comprising a cured product obtained by heat-curing the first, second or third composition of the present invention.
- the polyorganosiloxane (h) of the present invention comprises a silane compound represented by the above formula (1) (hereinafter referred to as “silane compound ( ⁇ )”) and z or a partial condensate thereof (hereinafter referred to as silane compound).
- silane compound ( ⁇ ) silane compound represented by the above formula (1)
- silane compound (2) silane compound represented by the formula (2)
- a partial condensate thereof hereinafter, the silane compound (2) and the partial condensate thereof are collectively referred to as “silane compound (2), etc.)
- a polyorganosiloxane obtained by hydrolysis and condensation is obtained by hydrolysis and condensation.
- the monovalent organic group having at least one epoxy group represented by X is not particularly limited, and examples thereof include an glycidoxypropyl group and 3, 4 (Oxycyclopentyl) methyl group, (3,4-epoxycyclohexyl) methyl group, 2- (3,4-epoxycyclopentyl) ethyl group, 2- (3,4-epoxycyclohexyl) ethyl group, 2- ( 3,4-epoxycyclopentyl) propyl group, 2- (3,4-epoxycyclohexyl) propyl group, 3- (3,4-epoxycyclopentyl) propyl group, 3- (3,4-epoxycyclohexyl) Examples thereof include groups having 5 to 20 carbon atoms such as a propyl group.
- the above-mentioned monovalent organic groups having one or more of these epoxy groups including an argysidoxypropyl group, a 2- (3,4-epoxycyclohexyl) ethyl group, and an epoxycyclohexyl group are exemplified.
- Preferred and particularly preferred are 2_ (3,4-epoxycyclohexyl) ethyl groups.
- Y 1 is a chlorine atom, a bromine atom, an iodine atom or a carbon number; Represents up to 20 linear, branched or cyclic alkoxyl groups. These groups generate a silanol group in the course of hydrolysis and condensation reaction in the presence of an organic base and water, and the condensation reaction occurs between the silanol groups, or the silanol group and the chlorine atom, bromine A group that forms a siloxane bond by causing a condensation reaction between an atom, an iodine atom or a silicon atom having the alkoxyl group.
- examples of the linear, branched or cyclic alkoxyl group having 1 to 20 carbon atoms of Y 1 include a methoxy group, an ethoxy group, an n-propoxy group, an i-propoxy group, and an n- Butoxy, i-butoxy, sec-butoxy, t-butoxy, n-pentyloxy, n-hexyloxy, cyclopentyloxy, cyclohexyloxy and the like.
- Y 1 in the formula (1) a chlorine atom, a methoxy group, an ethoxy group and the like are preferable.
- examples of the linear, branched or cyclic alkyl group having 1 to 20 carbon atoms for R 1 include a methyl group, an ethyl group, an n-propyl group, an i-propyl group, and an n-propyl group.
- a linear, branched or cyclic substituted alkyl group having 1 to 20 carbon atoms of R 1 for example,
- Examples of the linear, branched or cyclic alkenyl group having 2 to 20 carbon atoms for R 1 include a vinyl group, a 1-methylvinyl group, a 1-propenyl group, and an aryl group (2 —Propenyl group), 2-methyl-2-propenyl group, 1-butenyl group, 2-butenyl group, 3-butenyl group, 3-cyclopentenyl group, 3-cyclohexenyl group, and the like. .
- Examples of the aryl group having 6 to 20 carbon atoms of R 1 include phenyl, o-tolyl, m-tolyl, p-tolyl, 2,3-xylyl, 2,4 —Xylyl group, 2,5-xylyl group, 2,6-xylyl group, 3,4-xylyl group, 3,5-xylyl group, 1-naphthyl group and the like.
- Examples of the aralkyl group having 7 to 20 carbon atoms for R 1 include a benzyl group and a phenethyl group.
- R 1 in the formula (1) a methyl group, an ethyl group and the like are preferable.
- silane compound (1) examples include:
- n 0, glycidoxypropyltrimethoxysilane, polyglycidoxypropyltriethoxysilane, 2_ (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 2— ( 3,4-epoxycyclohexyl) ethyltriethoxysilane, etc .;
- Examples of the partial condensate of the silane compound (1) include trade names such as ES1001N, ES1002T, and ES1023 (all manufactured by Shin-Etsu Silicone Co., Ltd.); methyl silicate MSEP2 (Mitsubishi Chemical Corporation) Manufactured).
- the silane compound (1) and a partial condensate thereof can be used alone or in combination of two or more.
- Y 2 represents a chlorine atom, a bromine atom, an iodine atom or a linear, branched or cyclic alkoxyl group having 1 to 20 carbon atoms.
- These groups generate a silanol group in the course of hydrolysis and condensation reaction in the presence of an organic base and water, and the condensation reaction occurs between the silanol groups, or the silanol group and the chlorine atom, bromine A group that forms a siloxane bond by inducing a condensation reaction between an atom, an iodine atom, or a gayne atom having the alkoxyl group.
- examples of the linear, branched or cyclic alkoxyl group having 1 to 20 carbon atoms of Y 2 include those exemplified for the corresponding group of Y 1 in the above formula (1). Similar groups and the like can be mentioned.
- Y 2 represents a chlorine atom, a methoxy group, an ethoxy group, an n-propoxy group, an i-propoxy group, an n-butoxy group, a sec-butoxy group, a t-butyl group.
- a toxic group or the like is preferred.
- R 2 is a linear, branched or cyclic alkyl group having 1 to 20 carbon atoms, a linear, branched or cyclic substituted alkyl group having 1 to 20 carbon atoms, A linear, branched or cyclic alkenyl group having a prime number of 2 to 20, an aryl group having a carbon number of 6 to 20 and a carbon number?
- Examples of the aralkyl group of ⁇ 20 include the same groups as those exemplified for the group corresponding to R 1 in the formula (1).
- R 2 represents a fluorine atom, a methyl group, an ethyl group, a 2- (trifluoromethyl) ethyl group, a 2- (perfluoro-n-hexyl) ethyl group, or a 2- (perfluoro-n-octyl) ethyl group Group, hydroxymethyl group, 2-hydroxylethyl group, 3- (meth) acryloxypropyl group, 3_mercaptopropyl group, vinyl group, aryl group, phenyl group and the like are preferable.
- silane compound (2) examples include:
- Compounds having m 0, such as tetrachlorosilane, tetramethoxysilane, tetraethoxysilane, tetra-n-propoxysilane, tetra-i-propoxysilane, tetra-n-butoxysilane, tetra-sec-butoxysilane, and the like;
- Fluorotrichlorosilane Fluorotrimethoxysilane, Fluorotriethoxysilane, Fluorotri n-propoxysilane, Fluorotri i-propoxysilane, Fluorotri-n-butoxysilane, Fluorotri-sec-butoxysilane,
- Methyltrichlorosilane methyltrimethoxysilane, methyltriethoxysilane, methyltri-n_propoxysilane, methyltri-i_propoxysilane, methyltri-n-butoxysilane, methyltri-sec-butoxysilane, 2- (trifluoromethyl) 2- (Trifluoromethyl) ethyltrimethoxysilane, 2- (Trifluoromethyl) ethyltriethoxysilane Orchid, 2- (trifluoromethyl) ethyltri-n-propoxysilane, 2- (trifluoromethyl) ethyli-propoxysilane, 2 _ (trifluoromethyl) ethyl, n-butoxysilane, 2- (trifluoromethyl) ethyl Ethoxysilane,
- silane compounds (2) tetramethoxysilane, tetraethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, 3- (meth) acryloxypropyltrimethoxysilane, 3- (meth) acryloxypropyl Triethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane,
- the partial condensate of the silane compound (2) is a trade name such as KC—
- the silane compound (2) and its partial condensate can be used alone or in combination of two or more.
- Polyorganosiloxane (H) is produced by heating and hydrolyzing and condensing silane compound (1) etc. and silane compound (2) etc. in the presence of organic solvent, organic base and water. Is preferred.
- organic solvent for example, hydrocarbons, ketones, X sters, ethers, alcohols and the like can be used.
- Examples of the hydrocarbon include toluene and xylene; and examples of the ketone include methyl ethyl ketone, methyl isobutyl ketone, methyl n-amyl ketone, getyl ketone, and cyclohexanone; and examples of the ester include: Ethyl acetate, n-butyl acetate, i-amyl acetate, propylene glycol monomethyl ether acetate, 3-methoxybutyl acetate, ethyl lactate and the like; Examples of the ether include ethylene glycol dimethyl ether and ethylene glycol dimethyl ether Ether, tetrahydrofuran, dioxane, etc .; examples of the alcohol include 1-hexanol, 4-methyl-2-pentanol, ethylene Glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol mono-n-propyl ether, ethylene glycol mono
- organic solvents can be used alone or in combination of two or more.
- the amount of the organic solvent to be used is preferably 50 to: L 0,000 parts by weight, more preferably 100 to 5,000 parts by weight, based on 100 parts by weight of the total silane compound. .
- organic base examples include primary and secondary organic amines such as ethylamine and getylamine; and tertiary organic amines such as triethylamine, tri-n-propylamine, tri-n-butylamine, pyridine and 4-dimethylaminopyridine.
- Quaternary organic amines such as tetramethylammonium hydroxide;
- tertiary organic amines such as triethylamine, tri-n-propylamine, tri-n-butylamine, pyridine, and 4-dimethylaminopyridine; quaternary organic amines such as tetramethylammonium hydroxide Organic amines are preferred.
- the desired polyorganosiloxane () can be produced at a high hydrolysis / condensation rate without causing side reactions such as ring opening of epoxy groups.
- a composition having good production stability and good curability can be obtained.
- the amount of the organic amine used depends on the type of the organic amine, reaction conditions such as temperature, etc., and is not particularly limited, but is preferably 0.01 to 3 times, more preferably 0.1 to 3 times the mole of all silane compounds. 0 to 5 times mole. In addition, when an organic base other than the organic amine is used, an amount substantially equivalent to that of the organic amine is sufficient.
- the amount of water used in producing the polyorganosiloxane (H) is preferably 0.5 to 100 times, more preferably 1 to 30 times the mole of all silane compounds.
- the hydrolysis / condensation reaction when producing the polyorganosiloxane () involves dissolving the silane compound (1) and the like and the silane compound (1) and the like in an organic solvent, mixing this solution with an organic base and water, For example, it can be carried out by heating in an oil bath or the like.
- the heating temperature is set to 130 ° C or lower, preferably 40 to 120 ° C, and it is desired to heat the mixture for about 0.5 to 12 hours, preferably for about 1 to 8 hours. Good.
- the mixture may be stirred or left under reflux.
- the organic solvent layer is separated from the reaction solution, and usually washed with water.
- the washing operation is facilitated by washing with water containing a small amount of salt, for example, an aqueous solution of about 0.2% by weight of ammonium nitrate. Washing is carried out until the water after washing becomes neutral.
- the organic solvent layer is dried with a desiccant such as anhydrous calcium sulfate or molecular sieves if necessary, and then concentrated to obtain the desired polyorganosiloxane. () Can be obtained.
- the polyorganosiloxane (H) thus obtained has few residual hydrolyzable groups such as alkoxyl groups and silanol groups, it can be stored at room temperature for more than one month without dilution with a solvent. Does not gel. Further, if desired, after the reaction is completed, the remaining silanol groups can be further reduced by trimethylsilyl iodide with hexamethyldisilazane, trimethylchlorosilane, or ethyl formate, or the like.
- the hydrolysis / condensation reaction in the presence of an organic base and water does not cause side reactions such as a ring-opening reaction or a polymerization reaction of an epoxy group in the silane compound (1), etc.
- the amount of metal impurities such as sodium, potassium, platinum, ruthenium and the like in the polyorganosiloxane (h) is reduced as compared with the case where a metal catalyst is used.
- the polyorganosiloxane (H) preferably has a platinum, rhodium, ruthenium, conort, palladium, and nickel content of 10 ppm or less, respectively. If these metals exceed 10 ppm, they may be colored by heat.
- Weight average molecular weight of polyorganosiloxane (H) in terms of polystyrene (hereinafter referred to as "M w ". ) Is 500 to 1, 000, 0000, and preferably 1, 000 to 100, 0000.
- the polyorganosiloxane () satisfies at least one of the following conditions regarding the epoxy equivalent and the following conditions regarding the content of the structural unit derived from the silane compound (1).
- the epoxy equivalent is preferably 1,600 gZ mol or less, more preferably, 160 to 900 g / mol, and further preferably, 180 to 500 mol. If the epoxy equivalent exceeds 1,600 moles, the resulting polyorganosiloxane may have problems such as reduced heat resistance and coloring.
- the polyorganosiloxane (s) in one preferred embodiment, have an epoxy equivalent of less than 1,600 gZ mole and contain at most 10 ppm of platinum, ruthenium, cobalt, palladium and nickel.
- the content of the structural unit derived from the silane compound (1) is preferably at least 5 mol%, more preferably 10 to 90 mol%, and still more preferably 20 to 80 mol% of all the structural units. Desirably, it is mol%. If the content of the structural unit is less than 5 mol% of the total structural unit, the resulting polyorganosiloxane may have problems such as a decrease in heat resistance and coloring.
- the epoxy equivalent satisfies the above-mentioned conditions, and the ratio of the gay atom bonded to three or more oxygen atoms to all the silicon atoms is 10% or more, preferably 2% or more. Desirably, it is 0% or more. In this case, if the ratio of silicon atoms bonded to three or more oxygen atoms to all silicon atoms is less than 10%, the hardness of the cured product obtained from each of the optical semiconductor encapsulating compositions described below. There is a possibility that the adhesion to the substrate or the substrate may be defective.
- Polyorganosiloxane can be used very suitably as a main component in each of the optical semiconductor encapsulating compositions described below, and can be used alone or in combination with a general polyorganosiloxane. It is also useful as a laminating material, paint, etc.
- the polyorganosiloxane may be used alone or in combination of two or more.
- Carboxylic anhydride is (ii) a component (curing agent) that causes a hardening reaction with polyorganosiloxane.
- Such (B1) carboxylic anhydride is not particularly limited, but is preferably an alicyclic carboxylic anhydride.
- Examples of the alicyclic carboxylic acid anhydride include compounds represented by the following formulas (3) to (12).
- the Diels' Alder reaction product or a hydrogenated product thereof any structural isomer and any geometric isomer can be used.
- the alicyclic carboxylic anhydride can be used after being appropriately chemically modified as long as it does not substantially hinder the tanning reaction.
- the formula (3), (5), (7), (8) or (9) Preferred are compounds that are used. Particularly preferred are the compounds represented by the formulas (3), (5) and (7).
- the alicyclic carboxylic anhydride can be used alone or in combination of two or more.
- One or more anhydrides can be used. These are preferably used in combination with an alicyclic carboxylic anhydride.
- the aliphatic carboxylic acid anhydride and the aromatic carboxylic acid anhydride can also be used after being appropriately chemically modified as long as the curing reaction is not substantially hindered.
- the total use ratio of the aliphatic carboxylic anhydride and the aromatic carboxylic anhydride is preferably 50% by weight or less, more preferably 30% by weight or less, based on the total amount with the alicyclic carboxylic acid anhydride. .
- the amount of (B1) the carboxylic anhydride used is based on 1 mol of the epoxy group in (A) polyorganosiloxane.
- the equivalent ratio of the carboxylic anhydride groups is preferably 0.3 to 1.5, more preferably 0.5 to 1.3. In this case, if the corresponding amount ratio is less than 0.3 or more than 1.5, there may be disadvantages such as a decrease in the glass transition point (Tg) of the obtained cured product and coloring.
- composition for optical semiconductor encapsulation [I] and the composition for optical semiconductor encapsulation [II], other than (B1) carboxylic anhydride a range that does not impair the intended effect of the present invention is also considered.
- a component known as a curing agent for an epoxy compound or epoxy shelf hereinafter, referred to as “other curing agent”
- other curing agent for example, phenols, dicyandiamides, and organic hydrazides such as adipic hydrazide and phthalic hydrazide.
- other curing agent for example, phenols, dicyandiamides, and organic hydrazides such as adipic hydrazide and phthalic hydrazide.
- the proportion of the other curing agent to be used is preferably 50% by weight or less, more preferably 30% by weight or less, based on (B 1) carboxylic anhydride.
- the (C) curing accelerator in the optical semiconductor encapsulating composition [II] is a component that promotes the curing reaction between (A) the polyorganosiloxane and (B 1) carboxylic anhydride.
- Such a (C) curing accelerator is not particularly limited, but for example,
- Tertiary amines such as benzyldimethylamine, 2,4,6-tris (dimethylaminomethyl) phenol, cyclohexyldimethylamine, and triethanolamine; 2-methylimidazole, 2-n-heptylimidazole , 2-n-Pendecyl imidazole, 2-phenylimidazole, 2-phenyl-4-methylimidazole, 1-benzyl-2-methylimidazole, 1-benzyl-2-phenylimidazole, 1,2 —Dimethylimidazole, 2-ethyl-4-methylimidazole, 1,1- (2-cyanoethyl) 1-2-methylimidazole, 1-1 (2-cyanoethyl) —2-n-Pindecylimidazole, 1— (2 —Cyanoethyl) 1 2—Phenylimidazole, 1—1 (2—Cyanoethyl) 1—2—ethyl
- Organic phosphorus compounds such as diphenylphosphine, triphenylphosphine, triphenyl phosphite;
- Benzyltriphenylphosphonium chloride tetra-n-butylphosphonium bromide, methyltriphenylphosphonium bromide, ethyl triphenylphosphonium bromide, n-butyltriphenylphosphonium bromide, Tetraphenylphosphonium bromide, ethyltriphenylphosphonium monodide, ethyltriphenylphosphonium acetate, tetra-n-butylphosphonium o, o-Jethylphosphorodithionate, tetra- n-Butylphosphonium benzotriazolate, Tetra n-Butylphosphonium tetrafluoroporate, Tetra-n-butylphosphonium tetraphenylporate, Tetraphenylphosphonium tetraphenyl Quaternary Fosufoniumu salt, such as Ruporeto;
- 1,8-diazabicyclo [5.4.0] dizabicycloalkenes such as pendecene-7 and its organic acid salts;
- Organometallic compounds such as zinc octoate, tin octoate, aluminum acetylacetone complex;
- Quaternary ammonium salts such as tetraethylammonium bromide and tetra-n-butylammonium bromide;
- Boron compounds such as boron trifluoride and triphenyl borate; metal halides such as zinc chloride and stannic chloride;
- High melting point dispersion type latent curing accelerators such as amine addition type accelerators such as adducts of dicyandiamide diamine and epoxy resin; and the surface of the curing accelerators such as imidazoles, organic phosphorus compounds and quaternary phosphonium salts as polymers Coated with microcapsule -Type latent curing accelerator; amine salt-type latent curing accelerator; latent curing accelerator such as high-temperature dissociation-type thermal cationic polymerization-type latent curing accelerator such as Lewis acid salt and Bronsted acid salt
- imidazoles quaternary phosphonium salts, diazabicycloalkenes, organometallic compounds, and quaternary ammonium salts are colorless, transparent cured products that do not easily discolor even when heated for a long time. Is preferred in that is obtained.
- the curing accelerator (C) can be used alone or in combination of two or more.
- the amount of the curing accelerator (C) used is preferably 0.01 to 6 parts by weight, more preferably 0.1 to 100 parts by weight of the polyorganosiloxane (A). ⁇ 4 parts by weight. In this case, if the amount of the (C) curing accelerator used is less than 0.01 part by weight, the effect of promoting the curing reaction tends to decrease, and if it exceeds 6 parts by weight, the obtained cured product is colored.
- B2 Thermal acid generator
- the (B2) thermal acid generator in the optical semiconductor encapsulating composition [III] is a component that generates an acid upon heating, thereby causing (A) a curing reaction of the polyorganosiloxane.
- Such a (B2) thermal acid generator is not particularly limited, and examples thereof include compounds represented by the following formulas (13) to (18) (hereinafter each referred to as “compound (13)”). ⁇ "Compound (18)”)
- R i in the above formula. Is an alkyl group.
- compound (16) and compound (17) are preferable.
- the thermal acid generator is preferably used in an amount of 0.001 to 20 parts by weight, more preferably 0.01 to 10 parts by weight, and even more preferably 0.05 to 5 parts by weight, per 100 parts by weight of the polyorganosiloxane (A). It is.
- Each of the optical semiconductor encapsulating compositions (I), (II) and (III) of the present invention may contain inorganic oxide particles as necessary for the purpose of improving UV durability, adjusting viscosity, and the like. It can also be blended.
- the inorganic oxide particles are not particularly limited, for example, selected from the group consisting of Si, A, Zr, Ti, Zn, Ge, In, Sn, Sb, and Ce. And particles made of an oxide containing at least one element. More specifically, silica, alumina, zirconia, titanium oxide, zinc oxide, and gel oxide Examples include particles of manium, indium oxide, tin oxide, indium monoxide ( ⁇ ⁇ ), antimony acid antimony, antimony oxide ( ⁇ ), cerium oxide, and the like.
- fine particles such as silica, alumina, zirconia, and antimony oxide are preferable.
- the inorganic oxide particles may be used after being subjected to an appropriate surface treatment such as alkylation, polyxylation, (meth) acryloxyalkylation, glycoxyalkylation, aminoalkylation and the like.
- the inorganic oxide particles can be used alone or in combination of two or more.
- one or more dispersants such as anionic surfactants, cationic surfactants, nonionic surfactants, and polymer dispersants can be used together with the inorganic oxide particles.
- the primary average particle size of the inorganic oxide particles is preferably 10 O nm or less, more preferably:! ⁇ 80 nm. In this case, if the primary average particle size of the inorganic oxide particles exceeds 100 nm, the transparency of the obtained cured product may be impaired.
- the amount of the inorganic oxide particles used is preferably 90 parts by weight or less, more preferably 80 parts by weight or less, based on 100 parts by weight of the polyorganosiloxane (A). If the amount of the inorganic oxide particles exceeds 90 parts by weight, the composition may be thickened and processing may be difficult.
- the inorganic oxide particles can be used as a dispersion dispersed in an appropriate solvent.
- the solvent is not particularly limited as long as it is inert to each component constituting the optical semiconductor encapsulating composition of the present invention and a curing reaction and has an appropriate volatility.
- Esters or lactones such as ethyl acetate, n-butyl acetate, ethyl lactate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, and propylolactone;
- Aromatic hydrocarbons such as benzene, toluene and xylene
- Amides or lactams such as dimethylformamide, dimethylacetamide, N-methylpyrrolidone
- the solid content concentration of the dispersion of inorganic oxide particles is preferably 1 to 60% by weight, more preferably 5 to 50% by weight.
- Inorganic oxide particles and dispersions thereof are commercially available, and these commercially available products can also be used.
- inorganic oxide particles and dispersions thereof include, for example, dispersions of silica particles, methanol silica sol, IPA-ST, MEK-ST, NBA-ST, XBA-ST, DMAC — ST, ST—UP, ST— ⁇ UP, ST-C, ST—N, ST_0, ST— ⁇ L, ST—20, ST_40, ST—50 (all manufactured by Nissan Chemical Industries, Ltd.); PL-2PGME (propylene glycol-monomethyl ether dispersion, manufactured by Fuso Chemical Industry Co., Ltd.), etc.
- silica particles AEROSIL 130, AEROSIL 300, AEROSIL 380, AEROSIL TT 600, AEROSIL ⁇ X 50 (or more, Japan AEROSIL Co., Ltd.); Sildex H31, Sildex H32, Sildex H51, Sildex H52, Sildex HI21, Sildex HI22 (all manufactured by Asahi Glass Co., Ltd.); E220A, E220 (The above are manufactured by Nippon Silica Industry Co., Ltd.
- Each of the optical semiconductor encapsulating compositions [I], [II] and [III] of the present invention may contain an antioxidant, a light stabilizer or an ultraviolet ray, if necessary, in order to suppress coloring.
- An absorbent can also be included.
- antioxidants examples include trade names such as Sumi 1ize rBHT, Sumi 1izer GM, Sumiize rGS, Sumi 1izer MD P-S, Sumiize rBBM-S, Sumiize rWX-R Sumi1izer GA-80, Sumi1izer TPL-R.
- Examples of the light stabilizer include trade names such as Vioso rb 04 (manufactured by Kyodo Yakuhin Co., Ltd.); Tinuvinn622, Tinuvinn765 (all of which are manufactured by Chipa Specialty Chemicals, Inc.) Cy asor bUV-3346 (Cytec); Adka st abLA—57 (Asahi Denka Kogyo) and Chimassorb 1 19 and Ch ima ssorb 944.
- Vioso rb 04 manufactured by Kyodo Yakuhin Co., Ltd.
- Tinuvinn622, Tinuvinn765 all of which are manufactured by Chipa Specialty Chemicals, Inc.
- Cy asor bUV-3346 Cytec
- Adka st abLA—57 Adka st abLA—57 (Asahi Denka Kogyo) and Chimassorb 1 19 and Ch ima ssorb 944.
- Examples of the ultraviolet absorber include trade names such as Viosor b80, Viosorbll 0, Viosorbl 30, Viosorb 520, Viosorb 583, and Viosorb 590 (all manufactured by Kyodo Yakuhin Co., Ltd.); P, Tinuvinn213, Tinuvin234, Tinuvin320, Tinuvin326, Tinuvin328 (all manufactured by Ciba Specialty Chemicals); Adeka st abLA—31 ( Asahi Denka Kogyo Co., Ltd.).
- the optical semiconductor encapsulating composition of the present invention may contain, if necessary, an alicyclic epoxy compound, an aromatic epoxy compound, an ethylene blender or propylene as long as the intended effect of the present invention is not impaired.
- Aliphatic polyols such as dalicol, aliphatic or aromatic carboxylic acids, carbon dioxide gas generation inhibitors such as phenolic compounds; polyalkylenes dalicols, polydimethylsiloxane derivatives, etc., flexibility-imparting agents; various rubbers Impact modifiers such as plastic and organic polymer beads, plasticizers, lubricants, other silane coupling agents, flame retardants, antistatic agents, leveling agents, ion trapping agents, slidability improvers, and much more modified Other additives such as imparting agents, surface tension reducing agents, antifoaming agents, anti-settling agents, antioxidants, release agents, fluorescent agents, coloring agents, and conductive fillers may be added.
- the alicyclic epoxy compound for example,
- (22) is available as YED216D (above, Japan Epoxy Resin)
- (23) is available as CE2021 (Daicel)
- (24) is available as LS7970 (Shin-Etsu Chemical Co., Ltd.).
- each of the optical semiconductor encapsulating compositions [I], [II] and [III] is not particularly limited, and can be prepared by mixing the respective components by a conventionally known method.
- a preferred method for preparing the optical semiconductor encapsulating composition CI] is (A) obtained by subjecting the silane compound (1) and the like to hydrolysis and condensation of the silane compound (2) and the like in the manner described above.
- a method of mixing the polyorganosiloxane with (B1) sulfonic acid anhydride can be exemplified.
- a preferred method for preparing the optical semiconductor encapsulating composition [II] is obtained by hydrolyzing and condensing the silane compound (1) and the like with the silane compound (2) in the manner described above (A method of mixing (A) a polyorganosiloxane with (B 1) a carboxylic anhydride and (C) a curing accelerator can be exemplified.
- the method for preparing the optical semiconductor encapsulating composition [III] is not particularly limited, and can be prepared by mixing the components by a conventionally known method.
- a preferred method for preparing the composition for encapsulating an optical semiconductor [III] is to heat the silane compound (1) and the like and the silane compound (2) and the like in the presence of an organic solvent, an organic base and water to hydrolyze the compound.
- the composition [I] for encapsulating an optical semiconductor was prepared by separately preparing a polyorganosiloxane solution containing the component (A) as a main component and a hardener solution containing the component (B 1) as a main component.
- the optical semiconductor encapsulating composition [II] may be prepared by mixing the two at the time of use.
- the polyorganosiloxane solution containing the component (A) as a main component and the component (B 1) and the component (C) And a hardening agent liquid containing as a main component may be separately prepared, and the two may be mixed at the time of use.
- the optical semiconductor encapsulant of the present invention comprises a cured product obtained by heating and curing the optical semiconductor encapsulating composition [I], [II] or [III].
- each optical semiconductor encapsulating composition is applied to a predetermined portion of a substrate having an optical semiconductor layer, for example, by applying, potting, impregnating, etc. Heat to cure.
- each optical semiconductor encapsulating composition is not particularly limited, and examples thereof include known methods such as application or potting by a dispenser, application by screen printing under vacuum or normal pressure, and reaction injection molding. Can be adopted.
- the method for curing each optical semiconductor encapsulating composition after the application is not particularly limited.
- a conventionally known curing device such as a closed curing furnace or a tunnel furnace capable of continuous curing is used. Can be used.
- the heating method for curing is not particularly limited, and for example, a conventionally known method such as hot air circulation heating, infrared heating, and high frequency heating can be employed.
- the curing conditions are preferably, for example, about 30 seconds to 15 hours at 80 to 250 ° C.
- the purpose is to reduce the internal stress of the cured product during curing, for example, 8 After pre-curing at 0 to 120 ° ⁇ for about 0.5 to 5 hours, it is preferable to post-cure at 120 to 180 ° C for about 0.1 to 15 hours, and for a short time. If the purpose is to cure, for example, it is preferable to cure at 150 to 250 ° C. for about 30 seconds to 30 minutes.
- the optical semiconductor of the present invention comprises an optical semiconductor sealed with the optical semiconductor sealing material of the present invention.
- an optical semiconductor encapsulant using the optical semiconductor encapsulation composition [I] and an optical semiconductor encapsulation material using the optical semiconductor encapsulation composition [II] may be used in any combination.
- the thickness of the optical semiconductor encapsulant in the optical semiconductor of the present invention is preferably 0.05 mm or more, more preferably 0.1 mm or more.
- the upper value of the thickness of the optical semiconductor encapsulant is appropriately selected according to the use of the optical semiconductor to be sealed.
- the polyorganosiloxane (H) of the present invention can be particularly preferably used as a main component of each of the optical semiconductor encapsulating compositions [I], [II] and [III] of the present invention. .
- Each of the optical semiconductor encapsulating compositions (I), (II) and (III) of the present invention which contains a polyorganosiloxane as a main component, can be potted and has a thick film. Also, it is possible to form an optical semiconductor encapsulant that does not generate cracks or bubbles in the stiffened object, and that is colorless and transparent and has excellent UV durability. It is extremely suitable for sealing blue LEDs and white LEDs.
- the method of measuring the amount is as follows.
- Epoxy equivalent 1000 XW / V
- the above samples were measured by an inductively coupled plasma mass spectrometer (ICP-MS).
- the equipment was a Perkin Elmer ELAN DRC 1113 at 1.5 kw.
- the cobalt and nickel levels were measured while flowing ammonia gas at 0.6 mL / min.
- Synthesis Example 1 In a reaction vessel equipped with a stirrer, thermometer, dropping funnel, and reflux condenser, 27.24 g of methyltrimethoxysilane (MTMS), 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane ( (ECETS) 49.28 g, dimethyldimethoxysilane (DMDS) 12.02 g, methyl isobutyl ketone (MIBK) 749.2 g, and triethylamine 12.65 g were added and mixed at room temperature. Next, 90 g of deionized water was added dropwise from the dropping funnel over 30 minutes, and the mixture was reacted at 80 ° C for 4 hours while mixing under reflux.
- MTMS methyltrimethoxysilane
- EETS 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane
- MIBK methyl isobutyl ketone
- the organic layer was taken out, washed with a 0.2% by weight aqueous solution of ammonium nitrate until the washed water became neutral, and then the solvent and water were distilled off under reduced pressure.
- the organosiloxane was obtained as a viscous transparent liquid.
- a peak based on an epoxy group was obtained at a chemical shift ( ⁇ 5) of around 3.2 ppm according to the theoretical intensity. It was confirmed that no side reaction had occurred.
- Table 1 shows the viscosity, Mw, and epoxy equivalent of this (A) polyorganosiloxane.
- Each (A) polyorganosiloxane was obtained as a viscous transparent liquid in the same manner as in Synthesis Example 1 except that the charged raw materials were as shown in Table 1.
- Table 1 shows the viscosity, Mw, and epoxy equivalent of each (A) polyorganosiloxane.
- Dioxane (1,200 g) and trichlorosilane (lmo1) were charged and stirred in a 2-liter 4-neck flask equipped with a thermometer, a stirring rotor, and a cooling tube.
- a dropping funnel containing 18 g of water and 18 g of dioxane was attached to the four-necked flask, and added dropwise while maintaining the temperature at 25 to 30 ° C.
- the mixture was further stirred for 30 minutes, and a dropping funnel containing 3 mO1 of ethanol was attached, and the mixture was added dropwise while maintaining the temperature at 25 to 30 ° C. Thereafter, the mixture was further stirred for 120 minutes.
- the reaction solution was taken out, and the solvent was distilled off under reduced pressure of about 60 ° C. or less, to obtain 75.5 g of a low-viscosity liquid.
- the weight average molecular weight was 1,600.
- Polysiloxane containing epoxy groups can be synthesized by this method, but there are problems such as the use of trichlorosilane, which is difficult to handle, and the need for two steps of synthesis. table 1
- the molding jig and curing conditions of the composition for optical semiconductor encapsulation, and the procedure for evaluating the appearance, UV durability and hardness of the cured product are as follows.
- composition for encapsulating an optical semiconductor was injected into the molding jig, and was heated and cured in an oven at 140 ° C. for 2 hours.
- the optical semiconductor encapsulating composition was injected into the molding jig, heated in an oven at 100 ° C. for 2 hours, heated in an oven at 120 ° C. for 2 hours, and further heated at 140 ° C. The mixture was heated for 2 hours with an oven to harden.
- the cured product was continuously irradiated with ultraviolet light (UV) at 63 ° C for 2 weeks using an ultraviolet long life fade meter (manufactured by Suga Test Instruments Co., Ltd.).
- UV ultraviolet light
- the transmittance at 360 nm was measured with a spectrophotometer.
- Heat resistance The transmittance at 470 nm was measured at the beginning of the cured product and after leaving it in an oven at 150 ° C. for 72 hours.
- Retention (Transmittance after heat resistance test) / (Initial transmittance) X 100 (%) ⁇ : Retention rate is 80% or more, X: Retention rate is less than 80% 'Example 1
- component (A) 10.0 g of the polyorganosiloxane (A) obtained in Synthesis Example 1, and as the component (B 1), methylhexahydrophthalic anhydride (see the above formula (3). Trade name: MH 7) 5.5, manufactured by Shin Nippon Rideri Co., Ltd.) 5.5 g, 2-ethylethyl (C) component
- a cured product was obtained in the same manner as in Example 1 except that the components shown in Table 3 were used.
- Table 4 shows the evaluation results of the compounds.
- a cured product was obtained in the same manner as in Example 1 except that the components shown in Table 3 were used.
- Table 4 shows the evaluation results for each cured product.
- HNA-100 (trade name, manufactured by Shin-Nihon Ridani Co., Ltd.): a compound represented by the formula (5).
- 4XPET tetra-n-butylphosphonium o, o-jeti ⁇ / phospho-mouth dithionate (trade name: Hishikolin 4X-PET, manufactured by Nippon Chemical Industry Co., Ltd.).
- HBE100 (trade name, manufactured by Shin Nippon Rika Co., Ltd.): a compound represented by the following formula.
- CE 2021 (trade name, manufactured by Daicel Chemical Industries, Ltd.): a compound represented by the following formula,
- a cured product was obtained in the same manner as in Example 1 except that the components shown in Table 5 were used. However, curing was performed under curing condition 2. Table 6 shows the evaluation results of each cured product. Table 5
- DEGAN (trade name, manufactured by Kyowa Yuka Kagaku Co., Ltd.): a compound represented by the above formula (8).
- UCAT 5003 Phosphorus-based catalyst manufactured by Sanapro Example 22
- component (A) 10.0 g of the polyorganosiloxane (A) obtained in Synthesis Example 4, and as the component (B1), methylhexahydrophthalic anhydride (see the above formula (3).
- Trade name: MH700, Shin Nihon 8.5 g, U-CAT 5003 (manufactured by San-Apro Co.) as a component (C) 0.085 g and 2.0 g of RX300 were added, mixed uniformly, and degassed. By injecting the mixture into a molding jig and subjecting it to a hardening process, a cured product having no coloring and no cracks and bubbles was obtained. Table 6 shows the evaluation results of the cured product.
- a cured product was obtained in the same manner as in Example 1 except that the components shown in Table 5 were used. Crack: No bubbles, but heat resistance was X.
- component (A) 10.0 g of the polyorganosiloxane (A) obtained in Synthesis Example 1, and as the component (B), a compound (17) (trade name CP77, manufactured by Asahi Denka Co., Ltd.) 1 g was added, mixed uniformly, defoamed, poured into a molding jig, and cured to obtain a cured product that was colorless, transparent, and free from cracks and bubbles. The appearance of this cured product,
- Table 7 shows the evaluation results of the UV durability.
- a cured product was obtained in the same manner as in Example 23 except that the components shown in Table 7 were used. Table 7 shows the appearance and UV durability evaluation results of each cured product.
- Component (A) Component (B) Other components Crack Bubble Initial UV irradiation (g) (g) (g)
- Example 23 Synthesis Example 1 (10) CP77 (0.1) One None None Transparent Transparent Example 24 Synthesis Example 2 (10) CP77 (0.1) ⁇ None None Transparent Transparent Example 25 Synthesis Example 3 (10) CP77 (0.1) ⁇ None None Transparent Transparent Example 26 Synthesis Example 4 (10) CP77 (0.1) One None None Transparent Transparent Comparative Example 5 CP77 (0.1) HBEIOOO) None None Transparent Yellow color
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Abstract
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JP2006512406A JPWO2005100445A1 (ja) | 2004-04-16 | 2005-04-13 | 光半導体封止用組成物、光半導体封止材および光半導体封止用組成物の製造方法 |
US11/578,407 US20070225465A1 (en) | 2004-04-16 | 2005-04-13 | Composition for Sealing Optical Semiconductor, Optical Semiconductor Sealing Material, and Method for Producing Composition for Sealing Optical Semiconductor |
EP05734362A EP1736500A4 (en) | 2004-04-16 | 2005-04-13 | COMPOSITION FOR SEALING AN OPTICAL SEMICONDUCTOR, OPTICAL SEMICONDUCTOR SEALING MATERIAL, AND PROCESS FOR PRODUCING A COMPOSITION FOR SEALING AN OPTICAL SEMICONDUCTOR |
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JP (1) | JPWO2005100445A1 (ja) |
KR (1) | KR20070000490A (ja) |
TW (1) | TW200540202A (ja) |
WO (1) | WO2005100445A1 (ja) |
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Also Published As
Publication number | Publication date |
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JPWO2005100445A1 (ja) | 2008-03-06 |
US20070225465A1 (en) | 2007-09-27 |
EP1736500A1 (en) | 2006-12-27 |
TW200540202A (en) | 2005-12-16 |
EP1736500A4 (en) | 2010-03-24 |
KR20070000490A (ko) | 2007-01-02 |
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