WO2013047696A1 - エポキシ樹脂組成物及び電子部品装置 - Google Patents
エポキシ樹脂組成物及び電子部品装置 Download PDFInfo
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- WO2013047696A1 WO2013047696A1 PCT/JP2012/074960 JP2012074960W WO2013047696A1 WO 2013047696 A1 WO2013047696 A1 WO 2013047696A1 JP 2012074960 W JP2012074960 W JP 2012074960W WO 2013047696 A1 WO2013047696 A1 WO 2013047696A1
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- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/32—Epoxy compounds containing three or more epoxy groups
- C08G59/3218—Carbocyclic compounds
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- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
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Definitions
- the present invention relates to an epoxy resin composition and an electronic component device.
- curable resins such as epoxy resins have been widely used in fields such as molding materials, laminate and adhesive materials, various electronic and electrical parts, paints and ink materials.
- epoxy resin cured products are widely used as a sealing material in the field of sealing technology for electronic component elements such as transistors and ICs. This is because the cured epoxy resin is balanced in various properties such as moldability, electrical properties, moisture resistance, heat resistance, mechanical properties, and adhesion to inserts.
- the glass transition temperature of the cured epoxy resin is increased to about 200 ° C., and high heat resistance can be imparted.
- a method of using a polyfunctional epoxy resin such as a trisphenolmethane type epoxy resin and a polyfunctional phenol resin such as a trisphenolmethane type phenolic resin in combination is also known as a method for raising the glass transition temperature to about 200 ° C. .
- Dihydroxynaphthalene aralkylphenol resin is included as an epoxy resin composition for sealing that is less halogen and non-antimony and has good flame resistance without reducing reliability such as moldability, moisture resistance, and high-temperature storage properties. Have been proposed (see, for example, JP 2009-221357 A).
- a cured product of a conventional composition containing a trisphenolmethane type epoxy resin has a high glass transition temperature, but the elastic modulus is greatly reduced at around 200 ° C.
- the reliability under a high temperature environment such as 200 ° C. is not sufficient.
- the present invention comprises an epoxy resin composition having a high glass transition temperature when cured and having a small change in elastic modulus and small mass loss even when used in a high temperature environment, and an element sealed thereby. It is an object to provide an electronic component device.
- the present inventors have found that a cured product of an epoxy resin composition containing a specific epoxy resin and a specific phenol resin has a high glass transition temperature under a high temperature environment. Also in use, the inventors have found that the change in elastic modulus and the decrease in mass are small and the reliability under a high temperature environment is excellent, and the present invention has been completed. Specifically, it relates to the following.
- R represents a hydrogen atom
- n represents an integer of 0 to 10.
- R 1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 2 carbon atoms, which may be the same or different.
- n represents an integer of 0 to 10.
- R 1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 2 carbon atoms.
- the content of the total amount of the compound represented by the general formula (III) in the total amount of the compound represented by the general formula (II) and the compound represented by the general formula (III) is 10% by mass to 55% by mass. % Of the epoxy resin composition according to ⁇ 1> or ⁇ 2>.
- An electronic component device comprising an element sealed with the epoxy resin composition according to any one of ⁇ 1> to ⁇ 4>.
- an epoxy resin composition having a high glass transition temperature when cured and having a small change in elastic modulus and small mass loss even when used in a high temperature environment, and excellent reliability in a high temperature environment.
- An electronic component device can be provided.
- 2 is a GPC chart of phenol resin 1.
- 2 is a GPC chart of phenol resin 2.
- 3 is a GPC chart of phenol resin 3.
- the amount of each component in the composition is the amount of each of the plurality of substances present in the composition unless there is a specific indication when there are a plurality of substances corresponding to each component in the composition. It means the total amount.
- the epoxy resin composition of the present invention comprises (A) an epoxy resin containing a compound represented by the following general formula (I), (B) a phenol resin containing a compound represented by the following general formula (II), and An epoxy resin composition comprising (C) a dihydroxynaphthalene compound containing a compound represented by the general formula (III).
- the epoxy resin composition of the present invention is solid at room temperature (25 ° C.).
- the epoxy resin composition used in the present invention contains a compound represented by the following general formula (I) (hereinafter referred to as a trisphenol methane type epoxy resin).
- R represents a hydrogen atom.
- n represents an integer of 0 to 10.
- the epoxy resin composition contains a trisphenol methane type epoxy resin, particularly heat resistance can be improved.
- the trisphenol methane type epoxy resin has a high aromatic ring content in the resin skeleton and is multifunctional, so that the glass transition temperature of the cured product is high, and in combination with the phenol resin described below, It is considered that a highly reliable resin composition in a high temperature environment can be obtained when a cured product is obtained.
- R is a hydrogen atom
- the moldability is excellent.
- R is a hydrogen atom
- trade name: EPPN-500 series manufactured by Nippon Kayaku Co., Ltd., and trade name: 1032H60 manufactured by Mitsubishi Chemical Corporation are commercially available.
- N in the formula (I) is an integer of 0 to 10, and preferably an integer of 0 to 8, from the viewpoint of fluidity and moldability.
- the compound represented by the formula (I) may include a compound represented by the following formula (I-1) used for synthesizing the compound.
- R represents a hydrogen atom.
- the compound represented by the formula (I-1) is 5% by mass based on the total mass of the compound represented by the formula (I) and the compound represented by the formula (I-1). It is preferably contained in an amount of from 90 to 90% by mass, more preferably from 10 to 80% by mass, and still more preferably from 20 to 70% by mass.
- the epoxy equivalent of the trisphenolmethane type epoxy resin represented by the general formula (I) is preferably 100 to 220, and preferably 120 to 200. Is more preferred, More preferably, it is 140 to 185.
- a general method can be adopted, and for example, it can be measured by a method according to JIS K7236.
- epoxy resins can be used in combination as long as the effect of using the trisphenolmethane type epoxy resin is not impaired.
- the epoxy resin that can be used in combination is not particularly limited as long as it is a compound having two or more epoxy groups in one molecule.
- epoxy resins examples include bisphenol A type, bisphenol F type, bisphenol S type, naphthalene type, phenol novolac type, cresol novolac type, dihydroxybenzene novolak type, phenol aralkyl type, biphenyl type, dicyclopentadiene type, Examples include glycidyl ester type, glycidyl amine type, hydantoin type, and isocyanurate type. These epoxy resins may be used alone or in combination of two or more with respect to the trisphenolmethane type epoxy resin.
- the content of the trisphenolmethane type epoxy resin is preferably 50% by mass or more, more preferably 80% by mass or more in the total amount of epoxy resin.
- the epoxy resin composition used in the present invention contains a compound represented by the following general formula (II) (hereinafter referred to as naphthalenediol aralkyl resin).
- R 1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an alkoxy group having 1 to 2 carbon atoms, which may be the same or different.
- n represents an integer of 0 to 10.
- naphthalene diol aralkyl resin in combination with the trisphenolmethane type epoxy resin. This is presumably because the naphthalene diol aralkyl resin has a rigid skeleton called a naphthalene ring in the resin skeleton and is multifunctional, so that the glass transition temperature of the cured product is increased.
- the two hydroxyl groups bonded to the naphthalene ring can increase the molecular chain restraint of the epoxy resin after the curing reaction, and when combined with the epoxy resin described above, when the cured product is obtained It is considered that a highly reliable resin composition in a high temperature environment can be obtained.
- the trisphenolmethane type epoxy resin since the trisphenolmethane type epoxy resin has a high aromatic ring content and is multifunctional, it can increase the crosslinking density by reacting with the hydroxyl group of naphthalenediol aralkyl resin. Furthermore, the trisphenol methane type epoxy resin can be stacked in the cured product by two hydroxyl groups bonded to the naphthalene ring of the naphthalenediol aralkyl resin, and stacking can be formed by its own naphthalene ring. You can also. It is considered that the molecular chain restraint can be effectively increased by these actions, and the elastic modulus retention at high temperatures can be increased.
- R 1 in the formula (II) represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an alkoxy group having 1 to 2 carbon atoms, and is more preferably a hydrogen atom from the viewpoint of elastic modulus retention.
- N in the formula (II) is preferably an integer of 0 to 10, and preferably an integer of 0 to 8, from the viewpoints of fluidity, moldability and flame retardancy.
- the compound represented by the general formula (II) is preferably a compound represented by the following formula (IV).
- R 1 represents a hydrogen atom.
- n represents an integer of 0 to 10, and the preferred range is the same as in the case of the general formula (II).
- 1,6-naphthalenediol aralkyl resin represented by the formula (IV) As the 1,6-naphthalenediol aralkyl resin represented by the formula (IV), SN-375, SN-395 (both trade names manufactured by Nippon Steel Chemical Co., Ltd.) and the like are available.
- phenol resins can be used in combination as long as the effect of using the naphthalenediol aralkyl resin is not impaired.
- Usable phenol resins include those generally used in epoxy resin compositions for sealing, and there is no particular limitation.
- phenols such as phenol, cresol, resorcinol, catechol, bisphenol A, bisphenol F, phenylphenol, aminophenol and / or naphthols such as ⁇ -naphthol, ⁇ -naphthol, dihydroxynaphthalene, and formaldehyde, benzaldehyde, salicylaldehyde
- Novolak-type phenolic resin obtained by condensation or cocondensation with a compound having an aldehyde group such as an acid catalyst; synthesized from phenols and / or naphthols and dimethoxyparaxylene or bis (methoxymethyl) biphenyl
- Aralkyl type phenol resins such as phenol aralkyl resin, biphenylene type phenol aralkyl resin, naphthol aralkyl resin, etc .; phenols and / or naphthols; Dicyclopentadiene-type phenolic resins such as
- phenolic resins may be used alone or in combination of two or more with respect to the naphthalenediol aralkyl resin.
- the naphthalenediol aralkyl resin is preferably 50% by mass or more in the total phenolic resin in order to sufficiently obtain the effect of the naphthalenediol aralkyl resin. 80% by mass or more is more preferable.
- the total amount of (B) phenolic resin containing naphthalenediol aralkyl resin is based on the total amount of (A) epoxy resin containing the above trisphenolmethane type epoxy resin (B) hydroxyl group of phenolic resin and (A) epoxy resin epoxy It is preferable to add them so that the groups are close to equivalent.
- the ratio of the number of hydroxyl groups in (B) phenol resin (curing agent) to the number of epoxy groups in (A) epoxy resin (number of hydroxyl groups in curing agent / number of epoxy groups in epoxy resin) is not particularly limited. However, it is preferably set in the range of 0.5 to 2 and more preferably in the range of 0.6 to 1.3 in order to keep each unreacted component small. In order to obtain an epoxy resin composition for sealing having excellent moldability, it is more preferably set in the range of 0.8 to 1.2.
- the epoxy resin composition of the present invention contains a compound represented by the following general formula (III) (hereinafter referred to as a dihydroxynaphthalene compound).
- R 1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 2 carbon atoms.
- the dihydroxynaphthalene compound is a compound used as a raw material when synthesizing the naphthalenediol aralkyl resin.
- the epoxy resin composition contains a dihydroxynaphthalene compound
- the fluidity of the epoxy resin composition can be improved, and the fluidity and heat resistance are adjusted by adjusting the blending ratio with the naphthalenediol aralkyl resin. be able to.
- the dihydroxynaphthalene compound has a rigid skeleton called a naphthalene ring, and has two hydroxyl groups bonded to the naphthalene ring. Therefore, it is considered that the heat resistance can be maintained while improving the fluidity of the resin composition as compared with other low molecular weight phenol compounds.
- dihydroxynaphthalene compound examples include 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,6-dihydroxynaphthalene and 2,7-dihydroxynaphthalene.
- 1,6-dihydroxynaphthalene from the viewpoint of fluidity as a resin composition, it is preferable to use 1,6-dihydroxynaphthalene.
- the content ratio of the naphthalenediol aralkyl resin and the dihydroxynaphthalene compound is such that the content of the dihydroxynaphthalene compound relative to the total amount of the naphthalenediol aralkyl resin and the dihydroxynaphthalene compound is 10% by mass to 55% from the viewpoint of fluidity and heat resistance.
- the mass is preferably 20% by mass, and more preferably 20% by mass to 50% by mass.
- the content ratio of the dihydroxynaphthalene compound with respect to the total amount of the naphthalenediol aralkyl resin and the dihydroxynaphthalene compound can be obtained from the area integral ratio of GPC detected by the differential refractive index detector (RI).
- the hydroxyl equivalent when the naphthalenediol aralkyl resin represented by the general formula (II) and the dihydroxynaphthalene compound represented by the general formula (III) are combined is preferably 70 to 140, and preferably 80 to 135. More preferably, it is 90 to 130.
- a general method can be adopted as a method for measuring the hydroxyl equivalent, and for example, it can be measured by a method according to JISK0070.
- the epoxy resin composition of the present invention preferably contains an antioxidant as necessary in order to prevent oxidation of the resin.
- An antioxidant is an additive that prevents oxidation of the resin, and the epoxy resin composition containing the epoxy resin and the phenol resin described above can reduce a decrease in elastic modulus at high temperature. By containing an antioxidant in the resin composition, it is possible to suppress a decrease in mass of the cured product when left at high temperature.
- antioxidants examples include phenolic antioxidants, phosphite antioxidants, sulfur antioxidants, hindered amine antioxidants, and the like. These antioxidants can be used in combination. In particular, it is preferable to contain a phenolic antioxidant. By using a phenolic antioxidant, it is possible to effectively prevent thermal oxidative degradation of the resin. It contains phenolic antioxidants, and if necessary, in combination with other antioxidants such as phosphite antioxidants, sulfur antioxidants, hindered amine antioxidants, etc. Thermal oxidation deterioration can be further effectively suppressed.
- phenolic antioxidant examples include 1,3,5-tris (3 ′, 5′-di-t-butyl-4′-hydroxybenzyl) isocyanuric acid, 1,1,3-tris (2-methyl) -4-hydroxy-5-t-butylphenyl) butane, 3- (4'-hydroxy-3 ', 5'-di-t-butylphenyl) propionic acid-n-octadecyl, 3- (4'-hydroxy- 3 ′, 5′-di-t-butylphenyl) propionic acid-n-octadecyl, 3,9-bis ⁇ 2- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propionyloxy] -1,1-dimethylethyl ⁇ 2,4,8,10-tetraoxaspiro [5.5] undecane, 2-t-butyl-4-methoxyphenol, 3-t-butyl-4-methoxyphenol, 2, 6- -T-buty
- each of two carbon atoms adjacent to the carbon atom to which the phenolic hydroxyl group is bonded has an organic group having 1 or more carbon atoms.
- preferred organic groups include methyl group, ethyl group, propyl group, butyl group, isopropyl group, t-butyl group and the like.
- each of the two carbon atoms adjacent to the carbon atom to which the phenolic hydroxyl group is bonded preferably has an organic group containing a tertiary carbon as a substituent.
- the organic group containing tertiary carbon include a t-butyl group.
- the phenolic antioxidant may be synthesized and / or prepared by a conventional method, or a commercially available product may be obtained.
- examples of commercially available antioxidants include, for example, “Yoshinox BB”, “Yoshinox BHT”, “Yoshinox 425” (above, manufactured by API Corporation, trade name), “TTIC”, “TTAD” (above , Product name), “IRGANOX L107” (product name, manufactured by BASF Japan), “AO-20”, “AO-30”, “AO-40”, “AO-50”, “AO-” 50F ”,“ AO-60 ”,“ AO-60G ”,“ AO-70 ”,“ AO-80 ”,“ AO-330 ”(above, trade name, manufactured by ADEKA). These may be used individually by 1 type and may be used in combination of 2 or more type.
- a compound represented by the following formula (V) having t-butyl groups on both sides of the ortho position of the phenolic hydroxyl group and including four skeletons thereof is more preferable.
- a compound in which the phenolic hydroxyl group is surrounded by more bulky substituents, has a high steric hindrance, and contains more of its skeleton is expected to have a more reliable effect.
- AO-60 trade name manufactured by ADEKA.
- the content of the phenolic antioxidant in the epoxy resin composition of the present invention is not particularly limited as long as the mass reduction inhibiting effect is achieved. However, since a glass transition temperature may be lowered when a large amount of an antioxidant is blended, from the viewpoint of the glass transition temperature (heat resistance) of the epoxy resin composition, the total of 100 parts by mass of the epoxy resin is oxidized.
- the total amount of the inhibitor is preferably 0.1 to 20 parts by mass, and more preferably 1 to 10 parts by mass.
- the content rate of the said phenolic antioxidant 0.1 mass part or more, the mass reduction inhibitory effect of hardened
- phosphite antioxidant examples include triphenyl phosphite, diphenylisodecyl phosphite, phenyl diisodecyl phosphite, 4,4′-butylidene-bis (3-methyl-6-t-butylphenylditridecyl) phos Phyto, cyclic neopentanetetrayl bis (nonylphenyl) phosphite, cyclic neopentanetetrayl bis (dinonylphenyl) phosphite, cyclic neopentanetetrayl tris (nonylphenyl) phosphite, cyclic neopentanetetra Irtris (dinonylphenyl) phosphite, 10- (2,5-dihydroxyphenyl) -10H-9-oxa-10-phosphaphenanthrene-10-oxide
- sulfur-based antioxidants examples include tetrakis [methylene-3- (dodecylthio) propionate] methane, dilauryl 3,3′-thiodipropionate, distearyl 3,3′-thiodipropionate, N-cyclohexylthio. Mention may be made of phthalimide and Nn-butylbenzenesulfonamide. These may be used individually by 1 type and may be used in combination of 2 or more type.
- hindered amine antioxidants include bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, 3 -Dodecyl-1- (2,2,6,6-tetramethyl-4-piperidyl) pyrrolidine-2,5-dione, N-methyl-3-dodecyl-1- (2,2,6,6-tetramethyl -4-piperidyl) pyrrolidine-2,5-dione, N-acetyl-3-dodecyl-1- (2,2,6,6-tetramethyl-4-piperidyl) pyrrolidine-2,5-dione, poly [ ⁇ 6- (1,1,3,3-tetramethylbutyl) imino-1,3,5-triazine-2,4-diyne ⁇ ⁇ (2,2,6,6-tetramethyl-4-piperidyl) imino ⁇ Hexamethylene ⁇ (2, ,
- the above antioxidant may be used by being melt mixed with an epoxy resin and / or a phenol resin in advance. By previously melt-mixing the antioxidant with the epoxy resin and / or the phenol resin, the antioxidant can be sufficiently dispersed in the resin composition.
- the molding material of the present invention preferably contains (E) a curing accelerator in order to accelerate the curing reaction.
- (E) hardening accelerator used by this invention what is generally used with the epoxy resin molding material for sealing is mentioned, There is no limitation in particular.
- 1,8-diazabicyclo [5.4.0] undecene-7 1,5-diazabicyclo [4.3.0] nonene-5, 5,6-dibutylamino-1,8-diazabicyclo [5.4 .0] cycloamidine compounds such as undecene-7 and these compounds include maleic anhydride, 1,4-benzoquinone, 2,5-toluquinone, 1,4-naphthoquinone, 2,3-dimethylbenzoquinone, 2,6-dimethyl Quinones such as benzoquinone, 2,3-dimethoxy-5-methyl-1,4benzoquinone, 2,3-dimethoxy-1,4-benzoquinone, phenyl-1,4-benzoquinone, ⁇ such as diazophenylmethane, phenol resin, etc.
- an adduct of a tertiary phosphine and a quinone compound is preferable, and an adduct of triphenylphosphine and benzoquinone is more preferable.
- an adduct of a cycloamidine compound and a phenol resin is preferable, and a novolak-type phenol resin salt of diazabicycloundecene is more preferable.
- the total amount of adduct of tertiary phosphine and quinone compound and / or adduct of cycloamidine compound and phenol resin as a curing accelerator is preferably 60% by mass or more, and 80% by mass in the total amount of curing accelerator. The above is more preferable.
- the tertiary phosphine used for the adduct of the tertiary phosphine and the quinone compound is not particularly limited.
- the quinone compound used in the adduct of the tertiary phosphine and the quinone compound is not particularly limited, and examples thereof include o-benzoquinone, p-benzoquinone, diphenoquinone, 1,4-naphthoquinone, and anthraquinone. Alternatively, p-benzoquinone is preferable from the viewpoint of storage stability.
- the curing accelerator include diazabicycloalkenes such as 1,5-diazabicyclo [4.3.0] non-5-ene and 1,8-diazabicyclo [5.4.0] undec-7-ene.
- a cycloamidine compound such as a phenol novolak salt of a cycloamidine compound; a cycloamidine compound or a derivative thereof, maleic anhydride, 1,4-benzoquinone, 2,5-toluquinone, 1,4-naphthoquinone, 2,3-dimethylbenzoquinone, 2,6-dimethylbenzoquinone, 2,3-dimethoxy-5-methyl-1,4-benzoquinone, 2,3-dimethoxy-1,4-benzoquinone, phenyl-1,4-benzoquinone, etc.
- ⁇ -bonded compounds such as quinone compounds, diazophenylmethane, and phenolic resins
- tertiary amine compounds such as benzyldimethylamine, triethanolamine, dimethylaminoethanol, tris (dimethylaminomethyl) phenol and their derivatives
- 2-methylimidazole, 2-phenylimidazole, 2-phenyl Imidazole compounds such as -4-methylimidazole and their derivatives
- tributylphosphine methyldiphenylphosphine, triphenylphosphine, tris (4-methylphenyl) phosphine, tris (4-butylphenyl) phosphine, diphenylphosphine, phenylphosphine, etc.
- Organic phosphine compounds molecules obtained by adding compounds having a ⁇ bond such as maleic anhydride, quinone compounds, diazophenylmethane, and phenol resins to these organic phosphine compounds Phosphorus compounds having polarization; tetraphenylboron salts such as tetraphenylphosphonium tetraphenylborate, triphenylphosphinetetraphenylborate, 2-ethyl-4-methylimidazoletetraphenylborate, N-methylmorpholine tetraphenylborate and derivatives thereof; Etc.
- compounds having a ⁇ bond such as maleic anhydride, quinone compounds, diazophenylmethane, and phenol resins
- Phosphorus compounds having polarization Phosphorus compounds having polarization
- tetraphenylboron salts such as tetraphenylphosphonium tetraphenylborate, triphenylphosphi
- These compounds may be used alone or in combination of two or more.
- an adduct of an organic phosphine and a quinone compound is preferable.
- the content of the (E) curing accelerator in the epoxy resin composition according to the present invention is not particularly limited as long as a curing acceleration effect is achieved.
- the total amount of (E) the curing accelerator is 0.1 to 10 parts by mass with respect to 100 parts by mass of the (A) epoxy resin. It is preferable to mix at a ratio of 1 to 7 parts by mass.
- the epoxy resin composition of the present invention preferably contains an inorganic filler as necessary.
- the inorganic filler can be blended for the purpose of improving the linear expansion coefficient, thermal conductivity, elastic modulus, etc. in the cured product of the epoxy resin composition.
- inorganic fillers include fused silica, crystalline silica, glass, alumina, calcium carbonate, zirconium silicate, calcium silicate, silicon nitride, aluminum nitride, boron nitride, beryllia, zirconia, zircon, fosterite, steatite, Examples include spinel, mullite, titania, talc, clay, mica, and the like, and beads formed by spheroidizing these.
- inorganic fillers having a flame-retardant effect examples include aluminum hydroxide, magnesium hydroxide, composite metal hydroxides such as composite hydroxide of magnesium and zinc, zinc borate, and zinc molybdate.
- fused silica is preferable from the viewpoint of reducing the linear expansion coefficient
- alumina is preferable from the viewpoint of high thermal conductivity.
- These inorganic fillers may be used alone or in combination of two or more.
- the content of the inorganic filler is not particularly limited as long as the effect of the present invention is obtained, but is preferably 50% by mass or more in the epoxy resin composition, and more preferably 60% by mass to 95% by mass from the viewpoint of flame retardancy. 70 mass% to 90 mass% is more preferable.
- the average particle diameter (D50) of the inorganic filler is preferably 0.1 ⁇ m to 50 ⁇ m, more preferably 10 ⁇ m to 30 ⁇ m.
- D50 The average particle diameter of the inorganic filler is preferably 0.1 ⁇ m to 50 ⁇ m, more preferably 10 ⁇ m to 30 ⁇ m.
- the average particle size is 0.1 ⁇ m or more, an increase in the viscosity of the epoxy resin composition is suppressed, and when the average particle size is 50 ⁇ m or less, separation between the resin component and the inorganic filler can be reduced. Therefore, by setting the average particle size within the above range, it is possible to prevent the cured product from becoming uneven, the cured product characteristics from varying, and the filling ability to narrow gaps from being lowered.
- the volume average particle diameter (D50) is a particle diameter that is 50% by volume when a volume cumulative distribution curve is drawn from the small diameter side in the particle diameter distribution.
- the measurement can be performed by dispersing the sample in purified water containing a surfactant and using a laser diffraction particle size distribution analyzer (for example, SALD-3000J manufactured by Shimadzu Corporation).
- the particle shape of the inorganic filler is preferably spherical rather than square, and the particle size distribution of the inorganic filler is preferably distributed over a wide range.
- the inorganic filler is blended in an amount of 75% by volume or more with respect to the epoxy resin composition, 70% by weight or more of the inorganic filler is a spherical particle, and the particle size distribution of the inorganic filler is distributed over a wide range of 0.1 ⁇ m to 80 ⁇ m.
- the specific surface area of the inorganic filler is preferably 0.1m 2 / g ⁇ 10m 2 / g, is 0.5m 2 /g ⁇ 6.0m 2 / g It is more preferable.
- the epoxy resin composition of the present invention includes, in addition to the above-mentioned epoxy resin, phenol resin, antioxidant, curing accelerator and inorganic filler, a coupling agent, an ion exchanger, a release agent, and stress relaxation exemplified below.
- Various additives such as an agent, a flame retardant, and a colorant can be contained as necessary.
- the epoxy resin composition of the present invention is not limited to the following additives, and various additives known in the art may be added as necessary.
- the epoxy resin composition of the present invention includes various silanes such as epoxy silane, mercapto silane, amino silane, alkyl silane, ureido silane, and vinyl silane as necessary in order to enhance the adhesion between the resin component and the inorganic filler. It is preferable to add a known coupling agent such as a compound, a titanium compound, an aluminum chelate, or an aluminum / zirconium compound.
- the content of the coupling agent is preferably 0.05% by mass to 5% by mass with respect to the inorganic filler, and more preferably 0.1% by mass to 2.5% by mass.
- the content is 0.05% by mass or more, the adhesion to the frame can be improved, and when the content is 5% by mass or less, the moldability of the package is improved.
- These coupling agents may be used alone or in combination of two or more.
- the epoxy resin composition of this invention contains an anion exchanger as needed.
- an epoxy resin composition is used as a molding material for sealing, it is preferable to contain an anion exchanger from the viewpoint of improving moisture resistance and high-temperature storage characteristics of an electronic component device including an element to be sealed. .
- the anion exchanger is not particularly limited, and conventionally known anion exchangers can be used. Examples thereof include hydrotalcites and hydrous oxides of elements selected from magnesium, aluminum, titanium, zirconium and bismuth. These can be used alone or in combination of two or more.
- release agent In the epoxy resin composition of the present invention, it is preferable to incorporate a release agent in order to give a good release property to the mold during molding.
- a mold release agent used in this invention, A conventionally well-known thing can be used.
- release agent examples include carnauba wax, higher fatty acids such as montanic acid and stearic acid, higher fatty acid metal salts, ester waxes such as montanic acid esters, and polyolefin waxes such as polyethylene oxide and non-oxidized polyethylene. These may be used alone or in combination of two or more. Among these, oxidized or non-oxidized polyolefin wax is preferable.
- the content of the release agent is preferably 0.01% by mass to 10% by mass and more preferably 0.1% by mass to 5% by mass with respect to the epoxy resin.
- the content of the release agent is 0.01% by mass or more, the effect of releasability is easily obtained, and when the content is 10% by mass or less, the adhesiveness is improved.
- Stress relaxation agent It is preferable to mix
- the usable stress relaxation agent is not particularly limited as long as it is a known flexible agent (stress relaxation agent) that is generally used.
- flexible agents include, for example, thermoplastic elastomers such as silicone, styrene, olefin, urethane, polyester, polyether, polyamide, and polybutadiene; NR (natural rubber), NBR (Acrylonitrile-butadiene rubber), rubber particles such as acrylic rubber, urethane rubber, silicone powder; methyl methacrylate-styrene-butadiene copolymer (MBS), methyl methacrylate-silicone copolymer, methyl methacrylate-butyl acrylate Examples thereof include rubber particles having a core-shell structure such as a copolymer. These may be used alone or in combination of two or more.
- a flame retardant it is preferable to add a flame retardant to the epoxy resin composition of the present invention as necessary in order to impart flame retardancy.
- a flame retardant used in this invention For example, the well-known organic or inorganic compound and metal hydroxide containing a halogen atom, an antimony atom, a nitrogen atom, or a phosphorus atom are mentioned. These may be used alone or in combination of two or more.
- the epoxy resin composition of the present invention can be blended with known colorants such as carbon black, organic dyes, organic pigments, titanium oxide, red lead, bengara and the like.
- the epoxy resin composition of the present invention can be prepared by any method as long as various raw materials can be uniformly dispersed and mixed.
- raw materials with a predetermined content ratio are sufficiently mixed by a mixer, etc., then mixed or melt-kneaded by a mixing roll, an extruder, a raking machine, a planetary mixer, etc., cooled, and if necessary.
- Examples of the method include defoaming and pulverization.
- a low-pressure transfer molding method is the most common, but an injection molding method, a compression molding method, a dispensing method method, A casting method, a printing method, or the like may be used.
- the electronic component device of the present invention includes an element sealed with the above-described epoxy resin composition of the present invention.
- an electronic component device for example, a lead frame, a wired tape carrier, a wiring board, glass, a silicon wafer or other supporting member, an active element such as a semiconductor chip, a transistor, a diode, or a thyristor, and / or a capacitor, a resistor A passive element such as a body or a coil is mounted and sealed with the epoxy resin composition of the present invention.
- the transfer is performed using the epoxy resin composition of the present invention.
- DIP Dual Inline Package
- PLCC Physical Leaded Chip Chip Carrier
- QFP Quad Flat Package
- SOP Small Outline Package
- SOJ Small Outline J-lead package
- TSOP Thin Small
- TQFP Thin Quad Flat Package
- General resin-encapsulated IC TCP (Tape Carrier Package) in which a semiconductor chip connected to a tape carrier with a bump is encapsulated with the epoxy resin composition of the present invention Connected to the wiring formed on the wiring board or glass by wire bonding, flip chip bonding, solder, etc.
- COB Chip On Board
- hybrid IC hybrid IC or multi-chip in which active elements such as semiconductor chips, transistors, diodes, thyristors and / or passive elements such as capacitors, resistors and coils are sealed with the epoxy resin composition of the present invention.
- Chip module An element is mounted on the surface of an organic substrate on which a wiring board connection terminal is formed on the back surface, and the element and the wiring formed on the organic substrate are connected by bump or wire bonding, and then the epoxy resin composition of the present invention And BGA (Ball Grid Array) and CSP (Chip Size Package) in which the elements are sealed.
- BGA Bit Grid Array
- CSP Chip Size Package
- the epoxy resin composition of the present invention has a high glass transition temperature when cured, and has a small elastic modulus and mass reduction at high temperatures, so it is suitable for applications requiring heat resistance, high-temperature operation assurance, etc.
- a power module package, an in-vehicle package, a semiconductor package that operates even at a high temperature such as SiC, GaN, and the like can be given.
- the epoxy resin composition of this invention can be used effectively also in a printed wiring board.
- Epoxy resin / epoxy resin 1 Trisphenol methane type epoxy resin (epoxy resin of general formula (I), 46% content of compound of formula (I-1), n is an integer of 0 to 10, epoxy Equivalent 170, manufactured by Mitsubishi Chemical Corporation (formerly Japan Epoxy Resin Co., Ltd., trade name “1032H60”)
- Epoxy resin 2 Naphthalene all aralkyl epoxy resin (epoxy equivalent 164, manufactured by Nippon Steel Chemical Co., Ltd.
- Epoxy resin 3 o-cresol novolac type epoxy resin (epoxy equivalent 195, manufactured by Sumitomo Chemical Co., Ltd., trade name “ESCN-190-2”)
- Epoxy resin 4 biphenyl type epoxy resin (epoxy equivalent 196, manufactured by Mitsubishi Chemical Corporation (former Japan Epoxy Resin Co., Ltd., trade name “YX-4000H”))
- Epoxy resin 5 biphenylene type epoxy resin (epoxy equivalent 273, manufactured by Nippon Kayaku Co., Ltd., trade name “NC-3000”)
- Phenol resin / phenol resin 1 phenol resin of the above general formula (II) containing 30% of 1,6-dihydroxynaphthalene (n is an integer of 0 to 10, R 1 is hydrogen atom, hydroxyl group equivalent) 110, manufactured by Nippon Steel Chemical Co., Ltd. (formerly Toto Kasei Co., Ltd.), trade name “SN-395”, lot number: 71101))
- Phenol resin 2 A phenol resin of the above general formula (II) containing 47% of 1,6-dihydroxynaphthalene (n is an integer of 0 to 10, R 1 is a hydrogen atom, hydroxyl group equivalent 100, Nippon Steel Chemical Co., Ltd.
- -Phenolic resin 3 phenolic resin of the above general formula (II) containing 60% 1,6-dihydroxynaphthalene (n is an integer of 0 to 10, R 1 is a hydrogen atom, hydroxyl equivalent 99, Nippon Steel Made by Chemical Co., Ltd.
- Phenol resin 4 Trisphenol methane type phenol resin (hydroxyl equivalent 103, manufactured by Meiwa Kasei Co., Ltd., trade name “MEH-7500”) -Phenol resin 5: Phenol novolac type phenol resin (hydroxyl equivalent 106, manufactured by Hitachi Chemical Co., Ltd., trade name "HP-850N”) Phenol resin 6: Biphenylene dimethylene type phenol resin (hydroxyl equivalent 199, Air Water Co., Ltd. (formerly Air Water Chemical Co., Ltd., trade name “HE200C-10”))
- the content of 1,6-dihydroxynaphthalene contained in phenol resin 1, phenol resin 2 and phenol resin 3 was measured using gel permeation chromatography (GPC).
- GPC gel permeation chromatography
- component of the dihydroxynaphthalene compound in the phenol resin is (C) and the other components are (B)
- the content of component (C) with respect to the total amount of component (B) and component (C) / [ (B) + (C)] was determined and used as the content of the dihydroxynaphthalene compound.
- Coupling agent Epoxy silane ( ⁇ -glycidoxypropyltrimethoxysilane) Colorant: Carbon Black (Mitsubishi Chemical Corporation, trade name “MA-100”) Mold release agent: Carnauba wax (manufactured by Celerica NODA)
- Mass retention An epoxy resin composition was molded under the above molding conditions using a mold that was molded into a disk having a diameter of 50 mm and a thickness of 3 mm, and after-curing at 250 ° C. for 6 hours, the mass (A 2 ) was measured. Next, it was stored in a high-temperature bath at 250 ° C., taken out after a predetermined time (1008 h), and mass (B 2 ) was measured.
- the mass retention rate excludes the mass of the inorganic filler from the total mass of the epoxy resin composition, uses the mass (A 2 ) and the mass (B 2 ), and converts to the resin content to obtain the following mathematical formula (2). I asked more. Tables 1 and 2 show the evaluation results of the mass retention rate.
- Mass retention (%) (B 2 -mass of inorganic filler in epoxy resin composition) / (A 2 -mass of inorganic filler in epoxy resin composition) ⁇ 100 Formula (2)
- Examples 1 to 9 using the epoxy resin composition of the present invention showed a higher glass transition temperature than Comparative Examples 1 to 8, and were left in a high temperature environment of 250 ° C. Later, the decrease in mass is small (high weight retention) and excellent reliability. From the above results, it can be seen that the combination of the trisphenolmethane type epoxy resin and naphthalenediol aralkyl resin specified in the present invention is important. Moreover, it turns out that the epoxy resin composition of this invention can provide the semiconductor device suitable for use in a high temperature environment, when it is set as a hardened
- Comparative Example 3 uses a trisphenol methane type phenol resin, the glass transition temperature does not increase even when a naphthalene diol aralkyl type epoxy resin is used as the epoxy resin. This is because when a part of the trisphenolmethane phenol resin reacts with the epoxy resin, steric hindrance occurs, and the adjacent phenolic hydroxyl group is inhibited from reacting with the epoxy resin. As a result, it is considered that the crosslinking density does not increase and the glass transition temperature does not increase.
- Examples 5 to 8 to which the antioxidant was added had less weight loss after being left in a high temperature environment (250 ° C.).
- Examples 1 to 8 using phenol resins 1 and 2 in which the content of the dihydroxynaphthalene compound with respect to the total amount of the naphthalenediol aralkyl resin and the dihydroxynaphthalene compound is within the range of 10% by mass to 55% by mass are 55% by mass. It can be seen that the glass transition temperature and the elastic modulus retention ratio are superior to those of Example 9 using the phenol resin 3 contained in excess of%.
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Abstract
Description
下記一般式(II)で示される化合物を含有する(B)フェノール樹脂と、
下記一般式(III)で示される化合物を含有する(C)ジヒドロキシナフタレン化合物と、
を含有するエポキシ樹脂組成物。
〔式(IV)中、R1は水素原子を示し、nは0~10の整数を示す。〕
なお、本明細書において「~」は、その前後に記載される数値をそれぞれ最小値及び最大値として含む範囲を示すものとする。また、本明細書において組成物中の各成分の量は、組成物中に各成分に該当する物質が複数存在する場合には、特に断らない限り、組成物中に存在する当該複数の物質の合計量を意味する。
本発明のエポキシ樹脂組成物は、下記一般式(I)で示される化合物を含有する(A)エポキシ樹脂と、下記一般式(II)で示される化合物を含有する(B)フェノール樹脂と、下記一般式(III)で示される化合物を含有する(C)ジヒドロキシナフタレン化合物と、を含有するエポキシ樹脂組成物である。本発明のエポキシ樹脂組成物は、室温(25℃)において固形である。
以下、本発明のエポキシ樹脂組成物を構成する各成分について説明する。
本発明に用いるエポキシ樹脂組成物は、下記一般式(I)で示される化合物(以下、トリスフェノールメタン型エポキシ樹脂と記載する。)を含有する。
140~185であることがさらに好ましい。
本発明に用いるエポキシ樹脂組成物は、下記一般式(II)で示される化合物(以下、ナフタレンジオールアラルキル樹脂と記載する。)を含有する。
具体的には、(A)エポキシ樹脂中のエポキシ基数に対する(B)フェノール樹脂(硬化剤)中の水酸基数の比(硬化剤中の水酸基数/エポキシ樹脂中のエポキシ基数)は、特に制限はないが、それぞれの未反応分を少なく抑えるために0.5~2の範囲に設定されることが好ましく、0.6~1.3がより好ましい。成形性に優れる封止用エポキシ樹脂組成物を得るためには0.8~1.2の範囲に設定されることがさらに好ましい。
本発明のエポキシ樹脂組成物は、下記一般式(III)で示される化合物(以下、ジヒドロキシナフタレン化合物と記載する。)を含有する。
本発明のエポキシ樹脂組成物には、樹脂の酸化を防ぐために、必要に応じて酸化防止剤を含有することが好ましい。酸化防止剤とは、樹脂の酸化を防ぐ添加剤であり、上述のエポキシ樹脂及びフェノール樹脂を含有するエポキシ樹脂組成物は高温時の弾性率の低下を低減することができるが、更に、これらの樹脂組成物に酸化防止剤を含有させることにより、高温放置下の硬化物の質量低下を抑制できる。
本発明の成形材料は、硬化反応を促進するために(E)硬化促進剤を含有することが好ましい。本発明で用いられる(E)硬化促進剤としては、封止用エポキシ樹脂成形材料で一般に使用されているものが挙げられ、特に限定はない。
例えば、1,8-ジアザビシクロ[5.4.0]ウンデセン-7、1,5-ジアザビシクロ[4.3.0]ノネン-5、5,6-ジブチルアミノ-1,8-ジアザビシクロ[5.4.0]ウンデセン-7等のシクロアミジン化合物及びこれらの化合物に無水マレイン酸、1,4-ベンゾキノン、2,5-トルキノン、1,4-ナフトキノン、2,3-ジメチルベンゾキノン、2,6-ジメチルベンゾキノン、2,3-ジメトキシ-5-メチル-1,4ベンゾキノン、2,3-ジメトキシ-1,4-ベンゾキノン、フェニル-1,4-ベンゾキノン等のキノン化合物、ジアゾフェニルメタン、フェノール樹脂等のπ結合をもつ化合物を付加してなる分子内分極を有する化合物;ベンジルジメチルアミン、トリエタノールアミン、ジメチルアミノエタノール、トリス(ジメチルアミノメチル)フェノール等の三級アミン類及びこれらの誘導体;2-メチルイミダゾール、2-フェニルイミダゾール、2―フェニル-4-メチルイミダゾール、2-ヘプタデシルイミダゾール等のイミダゾール類及びこれらの誘導体;トリブチルホスフィン、メチルジフェニルホスフィン、トリフェニルホスフィン、トリス(4-メチルフェニル)ホスフィン、トリス(4-ブチルフェニル)ホスフィン、ジフェニルホスフィン、フェニルホスフィン等の有機ホスフィン類及びこれらのホスフィン類に無水マレイン酸、上記キノン化合物、ジアゾフェニルメタン、フェノール樹脂等のπ結合をもつ化合物を付加してなる分子内分極を有するリン化合物;テトラフェニルホスホニウムテトラフェニルボレート、トリフェニルホスフィンテトラフェニルボレート、2-エチル-4-メチルイミダゾールテトラフェニルボレート、N-メチルモルホリンテトラフェニルボレート等のテトラフェニルボロン塩及びこれらの誘導体;などが挙げられる。これらの1種を単独で用いても2種以上組合せて用いてもよい。
硬化促進剤としての第三ホスフィンとキノン化合物との付加物及び/又はシクロアミジン化合物とフェノール樹脂との付加物の総配合量は、硬化促進剤全量中、60質量%以上が好ましく、80質量%以上がより好ましい。
本発明のエポキシ樹脂組成物には、無機充填剤を必要に応じて含有することが好ましい。無機充填剤はエポキシ樹脂組成物の硬化物における線膨張係数、熱伝導率又は弾性率等の向上を目的に配合することができる。無機充填剤の具体例として、溶融シリカ、結晶シリカ、ガラス、アルミナ、炭酸カルシウム、ケイ酸ジルコニウム、ケイ酸カルシウム、窒化珪素、窒化アルミニウム、窒化ホウ素、ベリリア、ジルコニア、ジルコン、フォステライト、ステアタイト、スピネル、ムライト、チタニア、タルク、クレー、マイカ等の微粉未、及びこれらを球形化したビーズなどが挙げられる。
本発明のエポキシ樹脂組成物は、上述のエポキシ樹脂、フェノール樹脂、酸化防止剤、硬化促進剤および無機充填剤に加えて、以下に例示するカップリング剤、イオン交換体、離型剤、応力緩和剤、難燃剤、着色剤といった各種添加剤を必要に応じて含有することができる。ただし、本発明のエポキシ樹脂組成物には、以下の添加剤に限定することなく、必要に応じて当技術分野で周知の各種添加剤を追加してもよい。
本発明のエポキシ樹脂組成物には、樹脂成分と無機充填剤との接着性を高めるために、必要に応じて、エポキシシラン、メルカプトシラン、アミノシラン、アルキルシラン、ウレイドシラン、ビニルシラン等の各種シラン系化合物、チタン系化合物、アルミニウムキレート類、アルミニウム/ジルコニウム系化合物等の公知のカップリング剤を添加することが好ましい。
本発明のエポキシ樹脂組成物は、陰イオン交換体を必要に応じて含有することが好ましい。特にエポキシ樹脂組成物を封止用成形材料として用いる場合には、封止される素子を備える電子部品装置の耐湿性及び高温放置特性を向上させる観点から、陰イオン交換体を含有することが好ましい。
本発明のエポキシ樹脂組成物には、成形時に金型との良好な離型性を持たせるため離型剤を配合することが好ましい。本発明において用いられる離型剤としては特に制限はなく従来公知のものを用いることができる。
本発明のエポキシ樹脂組成物には、シリコーンオイル、シリコーンゴム粉末等の応力緩和剤を必要に応じて配合することが好ましい。応力緩和剤を配合することにより、パッケージの反り変形量、パッケージクラックを低減させることができる。
本発明のエポキシ樹脂組成物には、難燃性を付与するために必要に応じて難燃剤を配合することが好ましい。本発明において用いられる難燃剤としては特に制限はなく、例えば、ハロゲン原子、アンチモン原子、窒素原子又はリン原子を含む公知の有機若しくは無機の化合物、金属水酸化物が挙げられる。これらは1種を単独で用いても2種以上を組み合わせて用いてもよい。
本発明のエポキシ樹脂組成物には、カーボンブラック、有機染料、有機顔料、酸化チタン、鉛丹、ベンガラ等の公知の着色剤を配合することができる。
本発明のエポキシ樹脂組成物は、各種原材料を均一に分散混合できるのであれば、いかなる手法を用いても調製できる。一般的な調製方法として、所定の含有率の原材料をミキサー等によって十分混合した後、ミキシングロール、押出機、らいかい機、プラネタリミキサ等によって混合又は溶融混練した後、冷却し、必要に応じて脱泡、粉砕する方法等を挙げることができる。また、必要に応じて成形条件に合うような寸法及び質量でタブレット化してもよい。
本発明の電子部品装置は、上記の本発明のエポキシ樹脂組成物によって封止された素子を備える。かかる電子部品装置としては、例えば、リードフレーム、配線済みのテープキャリア、配線板、ガラス、シリコンウエハ等の支持部材に、半導体チップ、トランジスタ、ダイオード、サイリスタ等の能動素子、及び/又はコンデンサ、抵抗体、コイル等の受動素子を搭載し、それらを本発明のエポキシ樹脂組成物で封止したものが挙げられる。
本明細書に記載された全ての文献、特許出願、および技術規格は、個々の文献、特許出願、および技術規格が参照により取り込まれることが具体的かつ個々に記された場合と同程度に、本明細書中に参照により取り込まれる。
(A)エポキシ樹脂
・エポキシ樹脂1:トリスフェノールメタン型エポキシ樹脂(上記一般式(I)のエポキシ樹脂、式(I-1)の化合物の含有率46%、nは0~10の整数、エポキシ当量170、三菱化学株式会社(旧ジャパンエポキシレジン株式会社)製、商品名「1032H60」)
・エポキシ樹脂2:ナフタレンジオールアラルキル型エポキシ樹脂(エポキシ当量164、新日鐵化学株式会社(旧東都化成株式会社)製、商品名「ESN-355」)
・エポキシ樹脂3:o-クレゾールノボラック型エポキシ樹脂(エポキシ当量195、住友化学株式会社製、商品名「ESCN-190-2」)
・エポキシ樹脂4:ビフェニル型エポキシ樹脂(エポキシ当量196、三菱化学株式会社(旧ジャパンエポキシレジン株式会社)製、商品名「YX-4000H」)
・エポキシ樹脂5:ビフェニレン型エポキシ樹脂(エポキシ当量273、日本化薬株式会社製、商品名「NC-3000」)
・フェノール樹脂1:1,6-ジヒドロキシナフタレンを30%含有している、上記一般式(II)のフェノール樹脂(nは0~10の整数、R1は水素原子、水酸基当量110、新日鐵化学株式会社製(旧東都化成株式会社)、商品名「SN-395」、ロット番号:71101))
・フェノール樹脂2:1,6-ジヒドロキシナフタレンを47%含有している、上記一般式(II)のフェノール樹脂(nは0~10の整数、R1は水素原子、水酸基当量100、新日鐵化学株式会社製(旧東都化成株式会社)、商品名「SN-375」、ロット番号:P-20033))
・フェノール樹脂3:1,6-ジヒドロキシナフタレンを60%含有している、上記一般式(II)のフェノール樹脂(nは0~10の整数、R1は水素原子、水酸基当量99、新日鐵化学株式会社製(旧東都化成株式会社)、商品名「SN-375」、ロット番号:P-090810
・フェノール樹脂4:トリスフェノールメタン型フェノール樹脂(水酸基当量103、明和化成株式会社製、商品名「MEH-7500」)
・フェノール樹脂5:フェノールノボラック型フェノール樹脂(水酸基当量106、日立化成工業株式会社製、商品名「HP-850N」)
・フェノール樹脂6:ビフェニレンジメチレン型フェノール樹脂(水酸基当量199、エア・ウォーター株式会社(旧エア・ウォーター・ケミカル株式会社)、商品名「HE200C-10」)
・ポンプ:L6200 Pump(株式会社日立製作所製)
・検出器:示差屈折率検出器L3300 RI Monitor(株式会社日立製作所製)
・カラム:TSKgel-G5000HXLとTSKgel-G2000HXL(計2本)(共に東ソー株式会社製)を直列に繋いで使用した。
・溶離液: テトラヒドロフラン
・流量:1ml/min
・カラムオーブンの温度:30℃
フェノール樹脂1、フェノール樹脂2及びフェノール樹脂3のGPCチャートを図1、図2及び図3に示す。図1~図3ともに、1,6-ジヒドロキシナフタレンのピークは20.5分頃のピークであり、16分から20分までのピークは1,6-ナフタレンジオールアラルキル樹脂の混合物である。これから得られたスペクトルの面積%から(C)ジヒドロキシナフタレン化合物の含有率を求めた。フェノール樹脂中のジヒドロキシナフタレン化合物の成分を(C)とし、それ以外の成分を(B)とすると、(B)成分及び(C)成分の総量に対する(C)成分の含有率(C)/[(B)+(C)]を求め、ジヒドロキシナフタレン化合物の含有率とした。
ヒンダードフェノール系酸化防止剤(ADEKA社製 商品名「AO-60」)
トリフェニルホスフィンと1,4-ベンゾキノンの付加反応物
平均粒径(D50)17.5μm、比表面積3.8m2/gの球状溶融シリカ
カップリング剤:エポキシシラン(γ-グリシドキシプロピルトリメトキシシラン)
着色剤:カーボンブラック(三菱化学株式会社製、商品名「MA-100」)
離型剤:カルナバワックス(株式会社セラリカNODA製)
上述の成分をそれぞれ下記表1及び表2に示す質量部で配合し、混練温度80℃、混練時間15分の条件でロール混練を行うことによって、それぞれ実施例1~9、比較例1~8のエポキシ樹脂組成物を得た。
次に、実施例1~9、及び比較例1~8によって得たそれぞれのエポキシ樹脂組成物を、以下に示す各試験によって評価し、その結果を表1及び表2に示す。
なお、エポキシ樹脂組成物の成形は、トランスファー成形機を用いて、金型温度180℃、成形圧力6.9MPa、硬化加熱時間90秒の条件で行った。
(ガラス転移温度)
長さ80mm×幅10mm×厚さ3mmの試験片を成形する金型を用いて、エポキシ樹脂組成物を上記成形条件で成形して、さらに250℃で6時間アフターキュアした。次いで、試験片をダイヤモンドカッターを用いて、長さ50mm、幅5mm、に切断し、粘弾性測定装置RSA3(TAインスツルメンツ社製)を用い、3点曲げモードで昇温速度5℃/min.、周波数6.28rad/sの条件で測定した。tanδピーク値をガラス転移温度とした。ガラス転移温度の測定結果を表1及び表2に示す。
EMMI-1-66に準じたスパイラルフロー測定用金型を用いて、封止用エポキシ樹脂組成物をトランスファ成形機により、金型温度180℃、成形圧力6.9MPa、硬化加熱時間90秒の条件で成形し、流動距離(cm)を求めた。流動性の測定結果を表1及び表2に示す。
弾性率保持率は、上記ガラス転移温度の測定方法と同様の試料を作製し、この試料について粘弾性測定装置RSA3(TAインスツルメンツ社製)を用い、3点曲げモードで昇温速度5℃/min.、周波数6.28rad/sの条件で測定した。そして、60℃時の弾性率(A1)と250℃時の弾性率(B1)値から下記数式(1)により求めた。弾性率保持率の評価結果を表1及び表2に示す。
弾性率保持率(%)=B1/A1×100 ・・・式(1)
直径50mm×厚さ3mmの円板に成形する金型を用いて、エポキシ樹脂組成物を上記成形条件で成形して、250℃で6時間アフターキュアした後、質量(A2)を測定した。次に、250℃の高温槽中に保管し、所定時間(1008h)後に取り出して質量(B2)を測定した。質量保持率は、無機充填剤の質量をエポキシ樹脂組成物の総質量から除外し、前記質量(A2)及び前記質量(B2)を用いて、樹脂分に換算して下記数式(2)より求めた。質量保持率の評価結果を表1及び表2に示す。
Claims (5)
- 前記一般式(II)で示される化合物と前記一般式(III)で示される化合物の総量中の前記一般式(III)で示される化合物の総量の含有率が10質量%~55質量%である請求項1又は請求項2に記載のエポキシ樹脂組成物。
- 更に、酸化防止剤を含有する請求項1~請求項3のいずれか1項に記載のエポキシ樹脂組成物。
- 請求項1~請求項4のいずれか1項に記載のエポキシ樹脂組成物によって封止された素子を備える電子部品装置。
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| US14/347,901 US10865332B2 (en) | 2011-09-29 | 2012-09-27 | Epoxy resin composition and electronic component device |
| JP2013536404A JP6060904B2 (ja) | 2011-09-29 | 2012-09-27 | エポキシ樹脂組成物及び電子部品装置 |
| EP12836169.8A EP2762511B1 (en) | 2011-09-29 | 2012-09-27 | Epoxy resin composition and electronic component device |
| KR1020147007772A KR101939429B1 (ko) | 2011-09-29 | 2012-09-27 | 에폭시 수지 조성물 및 전자 부품 장치 |
| CN201280047389.4A CN103827162B (zh) | 2011-09-29 | 2012-09-27 | 环氧树脂组合物及电子部件装置 |
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Cited By (3)
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| JP2016113564A (ja) * | 2014-12-16 | 2016-06-23 | 住友ベークライト株式会社 | 封止用樹脂組成物、半導体装置、および構造体 |
| WO2017022721A1 (ja) * | 2015-08-03 | 2017-02-09 | 日立化成株式会社 | エポキシ樹脂組成物、フィルム状エポキシ樹脂組成物及び電子装置 |
| JP2017179012A (ja) * | 2016-03-28 | 2017-10-05 | 味の素株式会社 | 樹脂組成物 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108864654B (zh) * | 2017-05-10 | 2023-07-14 | 味之素株式会社 | 树脂组合物层 |
| WO2019065950A1 (ja) * | 2017-09-29 | 2019-04-04 | パナソニックIpマネジメント株式会社 | 蓄電デバイス |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2762511A1 (en) | 2014-08-06 |
| JP6060904B2 (ja) | 2017-01-18 |
| EP2762511B1 (en) | 2016-11-16 |
| US10865332B2 (en) | 2020-12-15 |
| EP2762511A4 (en) | 2015-07-29 |
| TW201331289A (zh) | 2013-08-01 |
| JPWO2013047696A1 (ja) | 2015-03-26 |
| KR101939429B1 (ko) | 2019-01-16 |
| CN103827162A (zh) | 2014-05-28 |
| US20200140728A1 (en) | 2020-05-07 |
| TWI546329B (zh) | 2016-08-21 |
| MY169359A (en) | 2019-03-26 |
| CN103827162B (zh) | 2016-06-15 |
| US20140234633A1 (en) | 2014-08-21 |
| US11767449B2 (en) | 2023-09-26 |
| KR20140082665A (ko) | 2014-07-02 |
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