JP5906673B2 - Epoxy resin molding material for sealing, and electronic component device provided with element sealed with this molding material - Google Patents

Description

  The present invention relates to an epoxy resin molding material for sealing and an electronic component device including an element sealed with the molding material.

Conventionally, epoxy resin molding materials have been widely used in the field of sealing electronic components such as transistors and ICs. This is because the epoxy resin has a good balance of electrical properties, moisture resistance, heat resistance, mechanical properties, adhesiveness with inserts, and the like. In particular, the combination of the ortho-cresol novolac type epoxy resin and the novolac type phenol curing agent has an excellent balance between these, and has become the mainstream of the base resin of the molding material for sealing.
As electronic devices have become smaller, lighter, and higher performance in recent years, mounting density has been increasing, and electronic component devices have come to be made surface mount packages from conventional pin insertion types. . When a semiconductor device is attached to a wiring board, the conventional pin insertion type package is soldered from the back side of the wiring board after the pins are inserted into the wiring board, so that the package was not directly exposed to high temperature. However, in the surface mount type package, since the entire semiconductor device is processed by a solder bus, a reflow device, or the like, it is directly exposed to the soldering temperature. As a result, when the package absorbs moisture, moisture absorption moisture rapidly expands during soldering, causing peeling of the adhesive interface and package cracks, which reduces the reliability of the package during mounting.
As measures to solve the above problems, in order to reduce moisture absorption inside the semiconductor device, IC moisture-proof packaging, or a method of sufficiently drying the IC in advance before mounting on a wiring board is used. (For example, refer nonpatent literature 1) However, these methods require an effort and cost. As another countermeasure, there is a method of increasing the content of the filler, but this method has a problem of causing a significant decrease in fluidity although the moisture absorption inside the semiconductor device is reduced. If the fluidity of the epoxy resin molding material for sealing is low, problems such as the occurrence of gold wire flow, voids, pinholes, etc. occur during molding (see, for example, Patent Document 1 and Non-Patent Document 2).

Japanese Patent Laid-Open No. 06-224328

Hitachi, Ltd., Semiconductor Division, “Surface Mounted LSI Package Mounting Technology and Reliability Improvement”, Applied Technology Publishing, November 16, 1988, pages 254-256 Edited by Technical Information Association, Inc. “High Reliability of Semiconductor Encapsulating Resin”, Technical Information Association, January 31, 1990, pages 172-176

  The present invention has been made in view of such circumstances, and includes an epoxy resin molding material for sealing capable of forming a cured product having high adhesion to a metal at high temperatures and excellent reflow resistance, and an element sealed thereby. An electronic component device is to be provided.

The present invention relates to the following.
(1) (A) an epoxy resin having two or more epoxy groups in one molecule, (B) a curing agent, and (C) a monovalent or divalent phenol derivative having one or more nitrile groups in the molecular structure; And an epoxy resin molding material for sealing.
(2) The epoxy resin molding material for sealing according to (1), wherein the content of the (C) phenol derivative is 0.10% by mass to 1.08% by mass.
(3) The epoxy resin molding material for sealing according to (1) or (2), further comprising (D) a silane compound.
(4) The epoxy resin molding material for sealing according to any one of (1) to (3), further comprising (E) a curing accelerator.
(5) The epoxy resin molding material for sealing according to any one of (1) to (4), further comprising (F) an inorganic filler.
(6) An electronic component device including an element sealed with the sealing epoxy resin molding material according to any one of (1) to (5).

  The cured product obtained by using the epoxy resin molding material for sealing obtained by the present invention has improved adhesion to a metal at a high temperature, so that a highly reliable electronic component device having excellent reflow resistance can be obtained. Yes, its industrial value is great.

  In this specification, the term “process” is not limited to an independent process, and is included in the term if the intended action of the process is achieved even when it cannot be clearly distinguished from other processes. . In the present specification, a numerical range indicated by using “to” indicates a range including the numerical values described before and after “to” as the minimum value and the maximum value, respectively. Furthermore, in this specification, the amount of each component in the composition is the total amount 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. means.

<Epoxy resin molding material for sealing>
The epoxy resin molding material for sealing includes (A) at least one epoxy resin having two or more epoxy groups in one molecule, (B) at least one curing agent, and (C) a nitrile group in the molecular structure. And at least one monovalent or divalent phenol derivative having at least one compound, and other components as necessary. The cured product formed in the epoxy resin molding material for sealing having such a configuration is excellent in adhesion to a metal at a high temperature and further excellent in reflow resistance.

  This can be considered as follows, for example. Since the phenol derivative that acts as a curing agent for epoxy resin has at least one nitrile group, the nitrile group interacts with the metal of the adherend, so that the adhesion between the cured product and the metal is improved and reflow resistance is improved. Can be considered to improve.

Moreover, it is preferable that the said epoxy resin molding material for sealing is a solid epoxy resin composition which is a solid state at normal temperature (25 degreeC). Thereby, it is excellent in storage stability.
In addition, that it is a solid state at normal temperature means that melting | fusing point (JIS K-7121) exceeds 25 degreeC or the softening point in a ring and ball method (JIS K-2207) is 40 degreeC or more.

(A) Epoxy Resin The epoxy resin molding material for sealing contains at least one epoxy resin having two or more epoxy groups in one molecule (hereinafter also referred to as “specific epoxy resin”). The said specific epoxy resin can be suitably selected without a restriction | limiting especially from what is generally used for the epoxy resin molding material for sealing. Specifically, phenol novolac type epoxy resin, orthocresol novolak type epoxy resin, epoxy resin having triphenylmethane skeleton, phenol, cresol, xylenol, resorcin, catechol, bisphenol A, bisphenol F, α-naphthol, Novolac obtained by epoxidizing novolac resin obtained by condensation or cocondensation of phenols such as β-naphthol and dihydroxynaphthalene with compounds having aldehyde groups such as formaldehyde, acetaldehyde, propionaldehyde, benzaldehyde and salicylaldehyde under an acidic catalyst Type epoxy resin; alkyl substituted, aromatic ring substituted or unsubstituted bisphenol A, bisphenol F, bisphenol S, biphenol, thiodiphenol, etc. Resin diglycidyl ether epoxy resin; stilbene epoxy resin; hydroquinone epoxy resin; glycidyl ester epoxy resin obtained by reaction of polybasic acid such as phthalic acid and dimer acid with epichlorohydrin; polyamine such as diaminodiphenylmethane and isocyanuric acid Glycidylamine type epoxy resin obtained by reaction of chlorohydrin with epichlorohydrin; epoxidized product of co-condensation resin of dicyclopentadiene and phenol; naphthalene type epoxy resin having naphthalene ring; triphenylmethane type epoxy resin having triphenylmethyl group; phenol Phenol and aralkyl resins synthesized from dimethoxyparaxylene or bis (methoxymethyl) biphenyl; aralkyl-type phenols such as naphthol and aralkyl resins Epoxidized Le resin; trimethylolpropane type epoxy resins; terpene-modified epoxy resin; an olefinic bond obtained by oxidizing with a peracid such as peracetic acid linear aliphatic epoxy resins; and alicyclic epoxy resins. These may be used alone or in combination of two or more.

  Especially, it is preferable to contain the biphenyl type epoxy resin which is the diglycidyl ether of alkyl substituted, aromatic ring substituted, or unsubstituted biphenol from a viewpoint of coexistence of fluidity | liquidity and sclerosis | hardenability. From the viewpoint of curability, it is preferable to contain a novolac type epoxy resin. Moreover, it is preferable to contain at least 1 sort (s) of a naphthalene type epoxy resin and a triphenylmethane type epoxy resin from a heat resistant and low curvature viewpoint. Moreover, it is preferable to contain the bisphenol F type epoxy resin which is the diglycidyl ether of alkyl substituted, aromatic ring substituted, or unsubstituted bisphenol F from a viewpoint of coexistence of fluidity | liquidity and a flame retardance. Moreover, it is preferable from the viewpoint of coexistence of fluidity | liquidity and reflow property to contain the thiodiphenol type epoxy resin which is the diglycidyl ether of alkyl substituted, aromatic ring substituted, or unsubstituted thiodiphenol. From the viewpoint of achieving both curability and flame retardancy, it preferably contains an epoxidized product of a phenol / aralkyl resin synthesized from alkyl-substituted, aromatic-ring-substituted or unsubstituted phenol and bis (methoxymethyl) biphenyl. . Further, from the viewpoint of achieving both storage stability and flame retardancy, it preferably contains an epoxidized naphthol / aralkyl resin synthesized from alkyl-substituted, aromatic-ring-substituted or unsubstituted naphthols and dimethoxyparaxylene.

  Examples of the biphenyl type epoxy resin include epoxy resins represented by the following general formula (I).

In general formula (I), R ^{1 to} R ⁸ each independently represent a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms. n represents an integer of 0 to 3.
The biphenyl type epoxy resin represented by the general formula (I) can be obtained by reacting a biphenol compound with epichlorohydrin by a known method.
As R < ¹ > -R < ⁸ > in general formula (I), C1-C10 alkyl groups, such as a hydrogen atom, a methyl group, an ethyl group, a propyl group, a butyl group, an isopropyl group, an isobutyl group, and a tert- butyl group And alkenyl groups having 1 to 10 carbon atoms such as vinyl group, allyl group and butenyl group. Of these, a hydrogen atom or a methyl group is preferable.

As such an epoxy resin, 4,4′-bis (2,3-epoxypropoxy) biphenyl or 4,4′-bis (2,3-epoxypropoxy) -3,3 ′, 5,5′-tetra An epoxy resin mainly composed of methylbiphenyl, an epoxy resin obtained by reacting epichlorohydrin and 4,4′-biphenol or 4,4 ′-(3,3 ′, 5,5′-tetramethyl) biphenol Can be mentioned. Among these, an epoxy resin mainly composed of 4,4′-bis (2,3-epoxypropoxy) -3,3 ′, 5,5′-tetramethylbiphenyl is preferable. Such an epoxy resin can be obtained as a commercial product under the trade name YX-4000 manufactured by Mitsubishi Chemical Corporation (former Japan Epoxy Resin Co., Ltd.).
The content of the biphenyl type epoxy resin is preferably 20% by mass or more, more preferably 30% by mass or more, and still more preferably 50% by mass or more in the total amount of the epoxy resin in order to exhibit its performance.

  Examples of the thiodiphenol type epoxy resin include an epoxy resin represented by the following general formula (II).

In general formula (II), R ^{1 to} R ⁸ each independently represent a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms. n represents an integer of 0 to 3.
The thiodiphenol type epoxy resin represented by the general formula (II) can be obtained by reacting a thiodiphenol compound with epichlorohydrin by a known method. As R < ¹ > -R < ⁸ > in general formula (II), C1-C10 alkyl groups, such as a hydrogen atom, a methyl group, an ethyl group, a propyl group, a butyl group, an isopropyl group, an isobutyl group, and a tert- butyl group And alkenyl groups having 1 to 10 carbon atoms such as vinyl group, allyl group and butenyl group. Of these, a hydrogen atom, a methyl group or a tert-butyl group is preferable.

Examples of such epoxy resins include epoxy resins mainly composed of diglycidyl ether of 4,4′-dihydroxydiphenyl sulfide, and 2,2 ′, 5,5′-tetramethyl-4,4′-dihydroxydiphenyl sulfide. Epoxy resin mainly composed of diglycidyl ether, epoxy resin mainly composed of diglycidyl ether of 2,2′-dimethyl-4,4′-dihydroxy-5,5′-di-tert-butyldiphenyl sulfide, etc. Among them, there is an epoxy resin mainly composed of an epoxy resin mainly composed of diglycidyl ether of 2,2′-dimethyl-4,4′-dihydroxy-5,5′-di-tert-butyldiphenyl sulfide. preferable. As such an epoxy resin, a product name YSLV-120TE manufactured by Nippon Steel Chemical Co., Ltd. is available as a commercial product.
The content of the thiodiphenol type epoxy resin is preferably 20% by mass or more, more preferably 30% by mass or more, and still more preferably 50% by mass or more in the total amount of the epoxy resin in order to exhibit its performance.

  Examples of the bisphenol F type epoxy resin include an epoxy resin represented by the following general formula (III).

In general formula (III), R < ¹ > -R < ⁸ > shows a hydrogen atom or a C1-C10 substituted or unsubstituted monovalent hydrocarbon group each independently. n represents an integer of 0 to 3.
The bisphenol F type epoxy resin represented by the general formula (III) can be obtained by reacting a bisphenol F compound with epichlorohydrin by a known method. As R < ¹ > -R < ⁸ > in general formula (III), C1-C10 alkyl groups, such as a hydrogen atom, a methyl group, an ethyl group, a propyl group, a butyl group, an isopropyl group, an isobutyl group, and a tert- butyl group And alkenyl groups having 1 to 10 carbon atoms such as vinyl group, allyl group and butenyl group. Of these, a hydrogen atom or a methyl group is preferable.

Examples of such an epoxy resin include an epoxy resin mainly composed of 4,4′-methylenebis (2,6-dimethylphenol) diglycidyl ether, and 4,4′-methylenebis (2,3,6-trimethyl). An epoxy resin mainly composed of diglycidyl ether of phenol) and an epoxy resin mainly composed of 4,4′-methylenebisphenol diglycidyl ether. Among them, an epoxy resin mainly composed of 4,4′-methylenebis (2,6-dimethylphenol) diglycidyl ether is preferable. As such an epoxy resin, a product name YSLV-80XY manufactured by Nippon Steel Chemical Co., Ltd. is available as a commercial product.
The content of the bisphenol F-type epoxy resin is preferably 20% by mass or more, more preferably 30% by mass or more, and even more preferably 50% by mass or more in the total amount of the epoxy resin in order to exhibit its performance.

  Examples of the novolac type epoxy resin include an epoxy resin represented by the following general formula (IV).

  In general formula (IV), each R independently represents a hydrogen atom or a monovalent substituent. n represents an integer of 0 to 10. The novolak type epoxy resin represented by the general formula (IV) can be easily obtained by reacting a novolak type phenol resin with epichlorohydrin.

Examples of the monovalent substituent represented by R include a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms and a substituted or unsubstituted monovalent alkoxy group having 1 to 10 carbon atoms. It is done. Among them, R in the general formula (IV) is an alkyl group having 1 to 10 carbon atoms such as a methyl group, an ethyl group, a propyl group, a butyl group, an isopropyl group, or an isobutyl group, a methoxy group, an ethoxy group, or a propoxy group. C1-C10 alkoxy groups, such as a group and a butoxy group, are preferable, and a hydrogen atom or a methyl group is more preferable. n is preferably an integer of 0 to 3.
Of the novolak epoxy resins represented by the general formula (IV), orthocresol novolac epoxy resins are preferable.
In the case of using a novolac type epoxy resin, the content thereof is preferably 20% by mass or more, more preferably 30% by mass or more, based on the total amount of the epoxy resin in order to exhibit its performance.

Examples of the naphthalene type epoxy resin include an epoxy resin represented by the following general formula (V), and examples of the triphenylmethane type epoxy resin include an epoxy resin represented by the following general formula (VI).
The naphthalene type epoxy resin represented by the following general formula (V) includes a random copolymer randomly including m structural units and n structural units, an alternating copolymer including alternately, a copolymer including regularly Examples thereof include block copolymers containing in the form of a block or a block, and any one of these may be used alone or in combination of two or more.
Further, the triphenylmethane type epoxy resin represented by the following general formula (VI) is not particularly limited, but a salicylaldehyde type epoxy resin is preferable.

In general formula (V), R < ¹ > -R < ³ > shows a C1-C12 substituted or unsubstituted monovalent hydrocarbon group each independently. p represents 1 or 0, m and n are each an integer of 0 to 11, and (m + n) is an integer of 1 to 11 and (m + p) is an integer of 1 to 12. i represents an integer of 0 to 3, j represents an integer of 0 to 2, and k represents an integer of 0 to 4. If in the general formula (V) either ^R 1, ^{R 2} and ^{R 3} there are a plurality, the plurality of ^R 1, ^{R 2} and ^{R 3} may be different from each other be the same as each other.

R ^{1 to} R ³ in the general formula (V) are methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, pentyl group, hexyl group, octyl group. A chain alkyl group such as a group, a decyl group and a dodecyl group; a cyclic alkyl group such as a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group and a cyclohexenyl group; an aryl group-substituted alkyl group such as a benzyl group and a phenethyl group; A methoxy group-substituted alkyl group; an alkoxy group-substituted alkyl group such as an ethoxy group-substituted alkyl group and a butoxy group-substituted alkyl group; an amino group-substituted alkyl group such as an aminoalkyl group, a dimethylaminoalkyl group and a diethylaminoalkyl group; a hydroxyl group-substituted alkyl group; No phenyl group, naphthyl group, biphenyl group, etc. Aryl group; alkyl group-substituted aryl group such as tolyl group, dimethylphenyl group, ethylphenyl group, butylphenyl group, tert-butylphenyl group and dimethylnaphthyl group; methoxyphenyl group, ethoxyphenyl group, butoxyphenyl group, tert-butoxy Examples include an alkoxy group-substituted aryl group such as a phenyl group and a methoxynaphthyl group; an amino group-substituted aryl group such as a dimethylaminophenyl group and a diethylaminophenyl group; a hydroxyl group-substituted aryl group. Of these, a hydrogen atom or a methyl group is preferable.

  In general formula (VI), each R independently represents a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms. n shows the integer of 1-10.

  R in the general formula (VI) is an alkyl group such as a hydrogen atom, methyl group, ethyl group, propyl group, butyl group, isopropyl group and tert-butyl group; alkenyl group such as vinyl group, allyl group and butenyl group. A halogenated alkyl group; an amino group-substituted alkyl group; a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms such as a mercapto group-substituted alkyl group. Of these, an alkyl group such as a methyl group and an ethyl group or a hydrogen atom is preferable, and a methyl group or a hydrogen atom is more preferable.

  These naphthalene type epoxy resins and triphenylmethane type epoxy resins may be used alone or in combination of two or more. Further, the content thereof is preferably 20% by mass or more, more preferably 30% by mass or more, and further preferably 50% by mass or more in the total amount of the epoxy resin in order to exhibit the performance.

  Examples of the epoxidized product of the phenol / aralkyl resin include an epoxy resin represented by the following general formula (VII).

In General Formula (VII), R ^{1 to} R ⁸ each independently represent a hydrogen atom or a substituted or substituted monovalent hydrocarbon group having 1 to 12 carbon atoms. R ⁹ each independently represents a substituted or substituted monovalent hydrocarbon group having 1 to 12 carbon atoms. i represents an integer of 0 to 3, and n represents an integer of 0 to 10. If R ⁹ there are a plurality In formula (VII), a plurality of R ⁹ may be different from one another the same.
The epoxidized product of the biphenylene skeleton-containing phenol / aralkyl resin represented by the general formula (VII) is obtained by adding epichlorohydrin to a phenol / aralkyl resin synthesized from alkyl-substituted, aromatic ring-substituted or unsubstituted phenol and bis (methoxymethyl) biphenyl. It can be obtained by reacting by a known method.
Examples of the substituted or substituted monovalent hydrocarbon group having 1 to 12 carbon atoms in R ^{1 to} R ⁹ in the general formula (VII) include a methyl group, an ethyl group, a propyl group, an isopropyl group, an n-butyl group, sec -Cyclic alkyl groups such as butyl group, tert-butyl group, pentyl group, hexyl group, octyl group, decyl group, dodecyl group, cyclic groups such as cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group Alkyl group-substituted alkyl group such as alkyl group, benzyl group, phenethyl group, methoxy group-substituted alkyl group, ethoxy group-substituted alkyl group, alkoxy group-substituted alkyl group such as butoxy group-substituted alkyl group, aminoalkyl group, dimethylaminoalkyl group, Amino group-substituted alkyl group such as diethylaminoalkyl group, hydroxyl group-substituted alkyl group Unsubstituted aryl groups such as phenyl group, naphthyl group and biphenyl group, tolyl group, dimethylphenyl group, ethylphenyl group, butylphenyl group, tert-butylphenyl group, dimethylnaphthyl group and other alkyl group substituted aryl groups, methoxyphenyl group And alkoxy group-substituted aryl groups such as ethoxyphenyl group, butoxyphenyl group, tert-butoxyphenyl group and methoxynaphthyl group, amino group-substituted aryl groups such as dimethylamino group and diethylamino group, and hydroxyl group-substituted aryl groups. Among these, as R ^{1 to} R ⁸ , a hydrogen atom or a methyl group is preferable. R ⁹ is preferably a methyl group, and i is preferably 0.
Moreover, as an n in general formula (VII), 6 or less is more preferable on the average, and as such an epoxy resin, Nippon Kayaku Co., Ltd. brand name NC-3000S can be obtained as a commercial item.

Moreover, the epoxy resin molding material for sealing is an epoxy resin represented by the above general formula (I) and an epoxy resin represented by the above general formula (VII) from the viewpoint of compatibility between flame retardancy, reflow resistance and fluidity. preferably contains the door, n in inter alia ^R 1 to R ⁸ is a hydrogen atom in the general formula ^R 1 to R ⁸ is an epoxy resin and the general formula is a hydrogen atom (VII) (I) = It is more preferable to contain 0 epoxy resin.
In particular, the mass ratio is preferably (I) / (VII) = 50/50 to 5/95, more preferably 40/60 to 10/90, and 30/70 to 15/85. More preferably. As a compound satisfying such a content mass ratio, CER-3000L (trade name, manufactured by Nippon Kayaku Co., Ltd.) and the like are commercially available.

  Examples of the epoxidized product of naphthol / aralkyl resin include an epoxy resin represented by the following general formula (VIII).

  In general formula (VIII), each R independently represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms. i shows the integer of 0-3. X represents a divalent organic group containing an aromatic ring. n represents an integer of 0 to 10.

Specific examples of X include arylene groups such as phenylene group, biphenylene group and naphthylene group, alkyl group-substituted arylene groups such as tolylene group, alkoxyl group-substituted arylene groups, aralkyl group-substituted arylene groups, aralkyl groups such as benzyl group and phenethyl group. And a divalent group containing an arylene group such as a xylylene group and the like. Of these, a phenylene group and a biphenylene group are preferable from the viewpoint of achieving both flame retardancy and storage stability.
The epoxidized product of the naphthol / aralkyl resin represented by the general formula (VIII) is obtained by adding epichlorohydrin to a naphthol / aralkyl resin synthesized from alkyl-substituted, aromatic ring-substituted or unsubstituted naphthol and dimethoxyparaxylene or bis (methoxymethyl) biphenyl. Can be obtained by a known method.

  As R in the general formula (VIII), methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, pentyl group, hexyl group, octyl group, decyl group, Chain alkyl groups such as dodecyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group and other cyclic alkyl groups, benzyl group, phenethyl group and other aryl group substituted alkyl groups, and methoxy group substituted alkyl groups , Alkoxy group-substituted alkyl groups such as ethoxy group-substituted alkyl groups, butoxy group-substituted alkyl groups, aminoalkyl-substituted alkyl groups such as aminoalkyl groups, dimethylaminoalkyl groups, diethylaminoalkyl groups, hydroxyl-substituted alkyl groups, phenyl groups, naphthyl groups , Unsubstituted aryl group such as biphenyl group, tolyl Alkyl group-substituted aryl groups such as dimethylphenyl group, ethylphenyl group, butylphenyl group, tert-butylphenyl group, dimethylnaphthyl group, methoxyphenyl group, ethoxyphenyl group, butoxyphenyl group, tert-butoxyphenyl group, methoxynaphthyl And an alkoxy group-substituted aryl group such as a group, an amino group-substituted aryl group such as a dimethylamino group and a diethylamino group, and a hydroxyl group-substituted aryl group.

Of these, a methyl group is preferable, and i is preferably 0. Examples of such an epoxy resin include an epoxidized product of a naphthol alkyl resin represented by the following general formula (IX) or (X). n represents an integer of 0 to 10, and is preferably 6 or less on average.
As an epoxy resin represented by the following general formula (IX), as a commercially available product, trade name ESN-375 manufactured by Nippon Steel Chemical Co., Ltd. may be mentioned. As an epoxy resin represented by the following general formula (X), commercially available A trade name ESN-175 manufactured by Sakai Chemical Co., Ltd. is mentioned.
The content of the epoxidized naphthol / aralkyl resin is preferably 20% by mass or more, more preferably 30% by mass or more, and still more preferably 50% by mass or more in the total amount of the epoxy resin in order to exhibit its performance.

  In general formula (IX), X represents a divalent organic group containing an aromatic ring, and n represents an integer of 0 to 10.

In general formula (X), X represents a divalent organic group containing an aromatic ring, and n represents an integer of 0 to 10.
The preferable aspect of the divalent organic group containing the aromatic ring represented by X in General Formula (IX) and General Formula (X) is as described above.
Biphenyl type epoxy resin, thiodiphenol type epoxy resin, bisphenol F type epoxy resin, novolac type epoxy resin, naphthalene type epoxy resin, triphenylmethane type epoxy resin, epoxidized phenol / aralkyl resin and naphthol / aralkyl resin Any one epoxidized product may be used alone, or two or more epoxidized products may be used in combination.
When two or more kinds are used in combination, the total content of the epoxy resin is preferably 50% by mass or more, more preferably 60% by mass or more, and even more preferably 80% by mass or more.

  The content of the epoxy resin contained in the sealing epoxy resin molding material is not particularly limited, and can be appropriately selected according to the purpose.

(B) Curing agent The epoxy resin molding material for sealing contains at least one curing agent. If the said hardening | curing agent is generally used for the epoxy resin molding material for sealing, there will be no restriction | limiting in particular. Specifically, phenols such as phenol, cresol, resorcin, catechol, bisphenol A, bisphenol F, phenylphenol, thiodiphenol, aminophenol, α-naphthol, β-naphthol, and dihydroxynaphthalene and formaldehyde, benzaldehyde, and A novolak-type phenol resin obtained by condensation or co-condensation with a compound having an aldehyde group such as salicylaldehyde under an acidic catalyst; a phenol-aralkyl resin synthesized from phenols and dimethoxyparaxylene or bis (methoxymethyl) biphenyl; Aralkyl-type phenolic resins such as naphthol-aralkyl resins, copolymer-type phenols in which phenol novolac structure and phenol-aralkyl structure are random, block, or alternately repeated Aralkyl resin; paraxylylene and / or metaxylylene modified phenol resin; melamine modified phenol resin; terpene modified phenol resin; dicyclopentadiene modified phenol resin; cyclopentadiene modified phenol resin; polycyclic aromatic ring modified phenol resin. These may be used alone or in combination of two or more.

  Of these, phenol / aralkyl resins, copolymerized phenol / aralkyl resins, and naphthol / aralkyl resins are preferred from the viewpoints of fluidity, flame retardancy, and reflow resistance. From the viewpoints of heat resistance, low expansion rate and low warpage, triphenylmethane type phenol resin is preferred. From the viewpoint of curability, a novolac type phenol resin is preferable. The curing agent preferably contains at least one of these phenol resins.

  Examples of the phenol / aralkyl resin include a resin represented by the following general formula (XI).

  In general formula (XI), each R independently represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms. i shows the integer of 0-3. X represents a divalent organic group containing an aromatic ring. n represents an integer of 0 to 10.

  As R in the general formula (XI), methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, pentyl group, hexyl group, octyl group, decyl group And chain alkyl groups such as dodecyl group; cyclic alkyl groups such as cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group and cyclohexenyl group; aryl group-substituted alkyl groups such as benzyl group and phenethyl group; methoxy group-substituted alkyl Groups, alkoxy groups substituted alkyl groups such as ethoxy group substituted alkyl groups and butoxy group substituted alkyl groups; amino group substituted alkyl groups such as aminoalkyl groups, dimethylaminoalkyl groups and diethylaminoalkyl groups; hydroxyl group substituted alkyl groups; phenyl groups, naphthyl Groups and biphenyl groups Groups: alkyl group-substituted aryl groups such as tolyl group, dimethylphenyl group, ethylphenyl group, butylphenyl group, tert-butylphenyl group and dimethylnaphthyl group; methoxyphenyl group, ethoxyphenyl group, butoxyphenyl group, tert-butoxyphenyl And alkoxy group-substituted aryl groups such as methoxynaphthyl group; amino group-substituted aryl groups such as dimethylamino group and diethylamino group; hydroxyl group-substituted aryl groups. Of these, a methyl group is preferable, and i is preferably 0.

X represents a divalent organic group containing an aromatic ring. Specifically, arylene groups such as a phenylene group, a biphenylene group, and a naphthylene group; an alkyl group-substituted arylene group such as a tolylene group; an alkoxyl group-substituted arylene group; a divalent group obtained from an aralkyl group such as a benzyl group and a phenethyl group An aralkyl group-substituted arylene group; a divalent group containing an arylene group such as a xylylene group;
Of these, a substituted or unsubstituted phenylene group is preferable from the viewpoint of compatibility between flame retardancy, fluidity and curability, and examples thereof include a phenol / aralkyl resin represented by the following general formula (XII). Further, from the viewpoint of achieving both flame retardancy and reflow resistance, a substituted or unsubstituted biphenylene group is preferable, and examples thereof include a phenol / aralkyl resin represented by the following general formula (XIII). n shows 0 or the integer of 1-10, and 6 or less is more preferable on average.

  In general formula (XII), n shows the integer of 0-10.

In general formula (XIII), n shows the integer of 0-10.
As a phenol aralkyl resin shown by the said general formula (XII), Mitsui Chemicals, Inc. brand name XLC is mentioned as a commercial item. Moreover, as a biphenylene skeleton containing phenol aralkyl resin shown by general formula (XIII), Meiwa Kasei Co., Ltd. brand name MEH-7851 is mentioned as a commercial item.
The content of the phenol-aralkyl resin is preferably 20% by mass or more, more preferably 30% by mass or more, and further preferably 50% by mass or more in the total amount of the curing agent in order to exhibit its performance.

  Examples of the naphthol / aralkyl resin include resins represented by the following general formula (XIV).

  In general formula (XIV), each R independently represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms. i shows the integer of 0-3. X represents a divalent organic group containing an aromatic ring. n represents an integer of 0 to 10.

  As R in the general formula (XIV), methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, pentyl group, hexyl group, octyl group, decyl group And chain alkyl groups such as dodecyl group; cyclic alkyl groups such as cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group and cyclohexenyl group; aryl group-substituted alkyl groups such as benzyl group and phenethyl group; methoxy group-substituted alkyl Group: alkoxy group-substituted alkyl group such as ethoxy group-substituted alkyl group and butoxy group-substituted alkyl group, amino group-substituted alkyl group such as aminoalkyl group, dimethylaminoalkyl group and diethylaminoalkyl group; hydroxyl group-substituted alkyl group; phenyl group, naphthyl Group and biphenyl group Alkyl group-substituted aryl groups such as tolyl group, dimethylphenyl group, ethylphenyl group, butylphenyl group, tert-butylphenyl group and dimethylnaphthyl group; methoxyphenyl group, ethoxyphenyl group, butoxyphenyl group, tert-butoxy group Examples include an alkoxy group-substituted aryl group such as a phenyl group and a methoxynaphthyl group; an amino group-substituted aryl group such as a dimethylaminophenyl group and a diethylaminophenyl group; a hydroxyl group-substituted aryl group. Of these, a methyl group is preferable, and i is preferably 0.

X represents a divalent organic group containing an aromatic ring, specifically, an arylene group such as a phenylene group, a biphenylene group and a naphthylene group; an alkyl group-substituted arylene group such as a tolylene group; an alkoxyl group-substituted arylene group; Aralkyl group-substituted arylene groups; bivalent groups obtained from aralkyl groups such as benzyl and phenethyl groups, and bivalent groups containing arylene groups such as xylylene groups. Among these, from the viewpoint of storage stability and flame retardancy, a substituted or unsubstituted phenylene group and biphenylene group are preferable, and a phenylene group is more preferable. For example, one of the following general formulas (XV) and (XVI) is shown. Naphthol / aralkyl resin.
n represents an integer of 0 to 10, and is preferably 6 or less on average.

  In general formula (XV), n shows the integer of 0-10.

In general formula (XVI), n shows the integer of 0-10.
As a naphthol aralkyl resin represented by the above general formula (XV), a commercial product, product name SN-475 manufactured by Nippon Steel Chemical Co., Ltd. can be mentioned, and as a naphthol aralkyl resin represented by the above general formula (XVI), Moreover, Nippon Steel Chemical Co., Ltd. brand name SN-170 is mentioned as a commercial item.
The blending amount of the naphthol / aralkyl resin is preferably 20% by mass or more, more preferably 30% by mass or more, and further preferably 50% by mass or more in the total amount of the curing agent in order to exhibit its performance.

  The phenol / aralkyl resin represented by the general formula (XI) and the naphthol / aralkyl resin represented by the general formula (XIV) are preferably premixed partially or entirely with acenaphthylene from the viewpoint of flame retardancy. . Although acenaphthylene can be obtained by dehydrogenating acenaphthene, a commercially available product may be used. Moreover, it can also be used as a polymer of acenaphthylene or a polymer of acenaphthylene and other aromatic olefins instead of acenaphthylene.

Examples of a method for obtaining a polymer of acenaphthylene or a polymer of acenaphthylene and another aromatic olefin include radical polymerization, cationic polymerization, and anionic polymerization. In the polymerization, a conventionally known catalyst can be used, but it can also be carried out only by heat without using a catalyst. In this case, the polymerization temperature is preferably 80 ° C to 160 ° C, and more preferably 90 ° C to 150 ° C.
The softening point of the resulting polymer of acenaphthylene or the polymer of acenaphthylene and another aromatic olefin is preferably 60 ° C to 150 ° C, more preferably 70 ° C to 130 ° C. When the temperature is lower than 60 ° C., the moldability tends to decrease due to oozing during molding, and when the temperature is higher than 150 ° C., the compatibility with the resin tends to decrease.

Examples of other aromatic olefins to be copolymerized with acenaphthylene include styrene, α-methylstyrene, indene, benzothiophene, benzofuran, vinylnaphthalene, vinylbiphenyl, and alkyl-substituted products thereof.
The amount of the aromatic olefin used is preferably 50% by mass or less, more preferably 20% by mass or less, based on acenaphthylene.

In addition to the above-mentioned aromatic olefins, aliphatic olefins can be used in combination as long as the effects of the present invention are not hindered. Examples of the aliphatic olefin include (meth) acrylic acid and esters thereof, maleic anhydride, itaconic anhydride, fumaric acid and esters thereof.
The use amount of these aliphatic olefins is preferably 20% by mass or less, more preferably 9% by mass or less, based on the total amount of the polymerization monomers.

As a method of premixing part or all of the curing agent with acenaphthylene, the curing agent and acenaphthylene are finely pulverized and mixed in a solid state with a mixer or the like, or both components are uniformly dissolved in a solvent that dissolves them. Then, a method of removing the solvent, a method of melting and mixing the curing agent and / or acenaphthylene at a temperature equal to or higher than the softening point of the acenaphthylene, etc. can be performed. The method is preferred. A premix (acenaphthylene-modified curing agent) is produced by the above method.
The melt mixing is not limited as long as the temperature is at least the softening point of at least one of the curing agent and acenaphthylene. Among these, 100 ° C to 250 ° C is preferable, and 120 ° C to 200 ° C is more preferable. Further, in the melt mixing, there is no limitation on the mixing time as long as both are mixed uniformly. Among these, 1 hour to 20 hours are preferable, and 2 hours to 15 hours are more preferable.
When the curing agent and acenaphthylene are premixed, the acenaphthylene may polymerize or react with the curing agent during mixing.

  Examples of the triphenylmethane type phenol resin include a phenol resin represented by the following general formula (XVII).

In general formula (XVII), each R independently represents a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms. n represents an integer of 0 to 10.
Specific examples of R in the general formula (XVII) include alkyl groups such as a hydrogen atom, a methyl group, an ethyl group, a propyl group, a butyl group, an isopropyl group, and a tert-butyl group; a vinyl group, an allyl group, and Examples include alkenyl groups such as butenyl groups; halogenated alkyl groups; amino group-substituted alkyl groups; and substituted or unsubstituted monovalent hydrocarbon groups having 1 to 10 carbon atoms such as mercapto group-substituted alkyl groups. Of these, an alkyl group such as a methyl group and an ethyl group or a hydrogen atom is preferable, and a methyl group or a hydrogen atom is more preferable.
When using a triphenylmethane type phenol resin, its content is preferably 30% by mass or more, more preferably 50% by mass or more, based on the total amount of the curing agent in order to exhibit its performance.

  Examples of the novolac type phenol resin include novolac type phenol resins such as a phenol resin represented by the following general formula (XVIII), cresol novolac resin, and the like. Of these, a novolak type phenol resin represented by the following general formula (XVIII) is preferable.

  In General Formula (XVIII), each R independently represents a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms. n represents an integer of 0 to 10.

R in the general formula (XVIII) represents a hydrogen atom, an alkyl group such as a methyl group, an ethyl group, a propyl group, a butyl group, an isopropyl group and a tert-butyl group; an alkenyl such as a vinyl group, an allyl group and a butenyl group. A halogenated alkyl group; an amino group-substituted alkyl group; a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms such as a mercapto group-substituted alkyl group. Of these, an alkyl group such as a methyl group and an ethyl group or a hydrogen atom is preferable, and a hydrogen atom is more preferable.
N is preferably 0-8.
When using a novolak type phenol resin, the content thereof is preferably 30% by mass or more, more preferably 50% by mass or more, based on the total amount of the curing agent in order to exhibit its performance.

  Examples of the copolymeric phenol / aralkyl resin include a phenol resin represented by the following general formula (XIX).

  In General Formula (XIX), each R independently represents a hydrogen atom, a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, or a hydroxyl group. X represents a divalent organic group containing an aromatic ring. n and m each independently represent an integer of 0 to 10.

The substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms in R in the general formula (XIX) includes a methyl group, an ethyl group, a propyl group, an isopropyl group, an n-butyl group, and a sec-butyl group. Chain alkyl groups such as cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, and cyclohexenyl group; chain alkyl groups such as tert-butyl group, pentyl group, hexyl group, octyl group, decyl group, and dodecyl group; Aryl-substituted alkyl groups such as benzyl and phenethyl groups; alkoxy-substituted alkyl groups such as methoxy-substituted alkyl groups, ethoxy-substituted alkyl groups and butoxy-substituted alkyl groups; aminoalkyl groups, dimethylaminoalkyl groups and diethylaminoalkyl Amino group-substituted alkyl groups such as groups; An unsubstituted aryl group such as a phenyl group, a naphthyl group and a biphenyl group; an alkyl group-substituted aryl group such as a tolyl group, a dimethylphenyl group, an ethylphenyl group, a butylphenyl group, a tert-butylphenyl group and a dimethylnaphthyl group; Alkoxy group-substituted aryl groups such as methoxyphenyl group, ethoxyphenyl group, butoxyphenyl group, tert-butoxyphenyl group and methoxynaphthyl group; amino group-substituted aryl groups such as dimethylaminophenyl group and diethylaminophenyl group; hydroxyl group-substituted aryl groups Is mentioned. Among these, R is preferably a hydrogen atom or a methyl group.
N and m each independently represent an integer of 0 to 10, more preferably 6 or less.

X in the general formula (XIX) is an arylene group such as a phenylene group, a biphenylene group or a naphthylene group; an alkyl group-substituted arylene group such as a tolylene group; an alkoxyl group-substituted arylene group; an aralkyl group-substituted arylene group; A divalent group obtained from an aralkyl group such as a phenethyl group; a divalent group containing an arylene group such as a xylylene group; Of these, a substituted or unsubstituted phenylene group or biphenylene group is preferable from the viewpoint of storage stability and flame retardancy.
As the compound represented by the general formula (XIX), HE-510 (trade name, manufactured by Air Water Co., Ltd.) and the like are available as commercial products.
In the case of using a copolymeric phenol / aralkyl resin, the content thereof is preferably 30% by mass or more, more preferably 50% by mass or more, based on the total amount of the curing agent in order to exhibit its performance.

The above phenol-aralkyl resin, naphthol-aralkyl resin, dicyclopentadiene-type phenol resin, triphenylmethane-type phenol resin, novolac-type phenol resin, and copolymer-type phenol-aralkyl resin may be used alone. Two or more kinds may be used in combination.
When two or more kinds are used in combination, the content is preferably 50% by mass or more, more preferably 60% by mass or more, and still more preferably 80% by mass or more, based on the total amount of the phenol resin.

  Content of the hardening | curing agent contained in the said epoxy resin molding material for sealing is not restrict | limited especially, According to the objective, it can select suitably.

(C) Phenol Derivative The epoxy resin molding material for sealing is at least one of a monovalent or divalent phenol derivative (hereinafter also referred to as “nitrile-phenol compound”) containing one or more nitrile groups in the molecular structure. Including species.
The nitrile-phenol compound is not particularly limited as long as it is a compound having one or two hydroxyl groups bonded to an aromatic ring and containing one or more nitrile groups. o-cyanophenol, m-cyanophenol, p-cyanophenol, o-hydroxyphenylacetonitrile, m-hydroxyphenylacetonitrile, p-hydroxyphenylacetonitrile, 4-cyano-4'-hydroxybiphenyl, 4-cyano-4'- Hydroxydiphenyl ether, 4-cyano-4'-hydroxydiphenylmethane, 2,2- (4-cyano-4'-hydroxy) diphenylpropane, 4-cyano-4'-hydroxybenzophenone, 6-cyano-2-naphthol, 4- Examples include hydroxyphthalonitrile, 3,4-dihydroxybenzonitrile, 2,3-dicyanohydroquinone and their positional isomers, and derivatives thereof.
These may be used alone or in combination of two or more.

  Among these, p-cyanophenol, o-cyanophenol, m-cyanophenol, o-hydroxyphenylacetonitrile from the viewpoints of reducing thermal stress (that is, reducing elastic modulus at the reflow temperature) and maintaining curability during moisture absorption. , M-hydroxyphenylacetonitrile, p-hydroxyphenylacetonitrile, 4-hydroxyphthalonitrile, 3,4-dihydroxybenzonitrile, and 2,3-dicyanohydroquinone, preferably p-cyanophenol, More preferably, it is at least one selected from o-cyanophenol, m-cyanophenol, 4-hydroxyphthalonitrile and 3,4-dihydroxybenzonitrile, 2,3-dicyanohydroquinone, p-cyanophenol, o- Shi Bruno phenol, m- cyanophenol, and more preferably at least one selected from 4-hydroxy phthalonitrile.

The total content of monovalent or divalent phenol derivatives having one or more nitrile groups in one molecule or molecular structure (C) contained in the epoxy resin molding material for sealing is the epoxy resin molding material for sealing Among them, 0.10% by mass to 1.08% by mass is preferable, and 0.15% by mass to 0.60% by mass is more preferable.
When the content is 0.10% by mass or more, the effects of the invention tend to be sufficiently obtained. Moreover, there exists a tendency which can suppress that the intensity | strength of the epoxy resin molding material for sealing falls that it is 1.08 mass% or less.

Moreover, the said epoxy resin molding material for sealing is monovalent | monohydric which has one or more nitrile groups in said (C) molecule | numerator or molecular structure from a viewpoint of adhesiveness and the intensity | strength suppression suppression of the epoxy resin molding material for sealing. Or it is preferable that 1.2 mass%-22.2 mass% are included with respect to the total content of a hardening | curing agent, and it is more preferable that 3.5 mass%-15.0 mass% is included with respect to the total content of a hardening | curing agent.
Moreover, the said epoxy resin molding material for sealing is monovalent | monohydric which has one or more nitrile groups in said (C) molecule | numerator or molecular structure from a viewpoint of adhesiveness and the intensity | strength suppression suppression of the epoxy resin molding material for sealing. Or it is preferable that 1.0 mass%-10.0 mass% are included with respect to the total content of an epoxy resin, and, as for bivalent phenol derivative, it is more preferable that 3.0 mass%-5.0 mass% are included.

  From the viewpoint of adhesiveness, reduction of thermal stress (reduction in elastic modulus at reflow temperature), maintenance of curability at the time of moisture absorption and suppression of strength reduction of the epoxy resin molding material for sealing, The nitrile-phenol compound is at least one selected from p-cyanophenol, o-cyanophenol, m-cyanophenol, 4-hydroxyphthalonitrile, 3,4-dihydroxybenzonitrile, and 2,3-dicyanohydroquinone. It is preferable to contain 1% by mass to 1.0% by mass, and 0.15% by mass to 0.6% of at least one selected from p-cyanophenol, o-cyanophenol, m-cyanophenol and 4-hydroxyphthalonitrile. It is more preferable to contain the mass%.

  In the present invention, the equivalent ratio of (A) an epoxy resin and (B) a curing agent and (C) a monovalent or divalent phenol derivative having one or more nitrile groups in the molecular structure or in one molecule, The ratio of the number of hydroxyl groups in the monovalent or divalent phenols containing one or more nitrile groups in one molecule and the number of epoxy groups (one monovalent containing one or more nitrile groups in one molecule or curing agent) Or, the number of hydroxyl groups in the divalent phenols / the number of epoxy groups in the epoxy resin is not particularly limited, but is preferably in the range of 0.5 to 2 in order to suppress each unreacted component to a small amount. More preferably, it is 6 to 1.3. Further, from the viewpoint of obtaining a sealing epoxy resin molding material having excellent moldability and reflow resistance, the range of 0.8 to 1.2 is more preferable.

(D) Silane Compound The sealing epoxy resin molding material preferably further contains (D) at least one silane compound.
Silane compounds are various silane compounds such as epoxy silane, mercapto silane, amino silane, alkyl silane, ureido silane, and vinyl silane. Specific examples thereof include vinyltrichlorosilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (β-methoxyethoxy) silane, γ-methacryloxypropyltrimethoxysilane, γ-methacryloxypropyltriethoxysilane, γ -Methacryloxypropylmethyldimethoxysilane, γ-methacryloxypropylmethyldiethoxysilane, γ-methacryloxypropyldimethylmethoxysilane, γ-methacryloxypropyldimethylethoxysilane, γ-acryloxypropyltrimethoxysilane, γ-acryloxypropyl Unsaturated bond-containing silane compounds such as triethoxysilane and vinyltriacetoxysilane; β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, γ-glycidoxypropylene Rutrimethoxysilane, γ-glycidoxypropyltriethoxysilane, γ-glycidoxypropylmethyldimethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, γ-glycidoxypropyldimethylmethoxysilane, and γ-glycid Epoxy group-containing silane compounds such as xylpropyldimethylethoxysilane; sulfur-containing atom silane compounds such as γ-mercaptopropyltrimethoxysilane, γ-mercaptopropyltriethoxysilane, and bis (triethoxysilylpropyl) tetrasulfide, γ-amino Propyltrimethoxysilane, γ-aminopropyltriethoxysilane, γ- [bis (β-hydroxyethyl)] aminopropyltriethoxysilane, N-β- (aminoethyl) -γ-aminopropyltriethoxysilane, and N (Trimethoxysilylpropyl) amino group-containing silane compounds such as ethylenediamine; isocyanate group-containing silane compounds such as isocyanatepropyltrimethoxysilane and isocyanatepropyltriethoxysilane; methyltrimethoxysilane, methyltriethoxysilane, dimethyldimethoxysilane, dimethyl Diethoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, diphenyldimethoxysilane, diphenyldiethoxysilane, diphenylsilanediol, triphenylmethoxysilane, triphenylethoxysilane, triphenylsilanol, N-β- (N-vinylbenzyl) Aminoethyl) -γ-aminopropyltrimethoxysilane, γ-chloropropyltrimethoxysilane, hexamethyldisilane, γ- Nilinopropyltrimethoxysilane, γ-anilinopropyltriethoxysilane, 2-triethoxysilyl-N- (1,3-dimethyl-butylidene) propylamine, 3-triethoxysilyl-N- (1,3-dimethyl) -Butylidene) propylamine, N- (3-triethoxysilylpropyl) phenylimine, 3- (3- (triethoxysilyl) propylamino) -N, N-dimethylpropionamide, N-triethoxysilylpropyl-β- Silane compounds such as alanine methyl ester, 3- (triethoxysilylpropyl) dihydro-3,5-furandione, bis (trimethoxysilyl) benzene, and 1H-imidazole, 2-alkylimidazole, 2,4-dialkylimidazole Imidazole such as 4-vinylimidazole Compound and γ- glycidoxypropyltrimethoxysilane, etc. imidazole silane compound is the reaction product of γ- -glycidoxypropylalkoxysilane such γ- glycidoxypropyl triethoxy silane.
One of these may be used alone, or two or more may be used in combination.

The total content of the silane compound in the sealing epoxy resin molding material is preferably 0.06% by mass to 2% by mass in the sealing epoxy resin molding material from the viewpoint of moldability and adhesiveness, and 0.1% by mass. % To 0.75% by mass is more preferable, and 0.2% to 0.7% by mass is more preferable.
If it is 0.06% by mass or more, the adhesion to various package members tends to be further improved. Further, if it is 2% by mass or less, it tends to be suppressed from the occurrence of molding defects such as voids.

  The sealing epoxy resin molding material may further contain at least one conventionally known coupling agent. Specific examples of the coupling agent include isopropyl triisostearoyl titanate, isopropyl tris (dioctyl pyrophosphate) titanate, isopropyl tri (N-aminoethyl-aminoethyl) titanate, tetraoctyl bis (ditridecyl phosphite) titanate, tetra ( 2,2-diallyloxymethyl-1-butyl) bis (ditridecyl) phosphite titanate, bis (dioctylpyrophosphate) oxyacetate titanate, bis (dioctylpyrophosphate) ethylene titanate, isopropyltrioctanoyl titanate, isopropyldimethacrylisostearoyl Titanate, isopropyl isostearoyl diacryl titanate, isopropyl tri (dioctyl phosphate) titanate Isopropyl tricumylphenyl titanate, tetraisopropyl bis (dioctyl phosphite) titanate coupling agents such as titanates, aluminum chelates, aluminum / zirconium compounds, and the like.

These may be used alone or in combination of two or more.
Further, the total content of these coupling agents is preferably 0.06% by mass to 2% by mass in the epoxy resin molding material for sealing from the viewpoint of moldability and adhesiveness, and 0.1% by mass to 0.75% by mass. % Is more preferable, and 0.2% by mass to 0.7% by mass is more preferable.
If it is 0.06% by mass or more, the adhesion to various package members tends to be further improved. Further, if it is 2% by mass or less, it tends to be suppressed from the occurrence of molding defects such as voids.

(E) Curing accelerator It is preferable that the sealing epoxy resin molding material further contains at least one curing accelerator. The curing accelerator is not particularly limited as long as it is generally used in an epoxy resin molding material for sealing. Specifically, 1,8-diazabicyclo [5.4.0] undecene-7, 1,5-diazabicyclo [4.3.0] nonene-5, and 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-Dimethylbenzoquinone, 2,3-dimethoxy-5-methyl-1,4-benzoquinone, 2,3-dimethoxy-1,4-benzoquinone, and quinone compounds such as phenyl-1,4-benzoquinone, diazophenylmethane And compounds having intramolecular polarization formed by adding a compound having a π bond such as phenol resin; benzyldimethylamine, triethanolamine Tertiary amines such as ethylene, dimethylaminoethanol, and tris (dimethylaminomethyl) phenol and their derivatives; 2-methylimidazole, 2-phenylimidazole, 2-phenyl-4-methylimidazole, and 2-heptadecylimidazole Imidazoles such as, and derivatives thereof; organic phosphines such as tributylphosphine, methyldiphenylphosphine, triphenylphosphine, tris (4-methylphenyl) phosphine, diphenylphosphine, and phenylphosphine; and maleic anhydride to these phosphines, Phosphorus compound having intramolecular polarization formed by adding a compound having a π bond such as quinone compound, diazophenylmethane, and phenol resin; tetraphenylphosphonium tetraphenylborate Tetrasubstituted phosphonium / tetrasubstituted borates such as tetraphenylphosphonium ethyltriphenylborate and tetrabutylphosphonium tetrabutylborate; Tetra such as 2-ethyl-4-methylimidazole / tetraphenylborate and N-methylmorpholine / tetraphenylborate Examples thereof include phenylboron salts and derivatives thereof. These may be used alone or in combination of two or more.

  There is no restriction | limiting in particular as a tertiary phosphine used for the addition product of a tertiary phosphine and a quinone compound. Specifically, dibutylphenylphosphine, butyldiphenylphosphine, ethyldiphenylphosphine, triphenylphosphine, tris (4-methylphenyl) phosphine, tris (4-ethylphenyl) phosphine, tris (4-propylphenyl) phosphine, tris ( 4-butylphenyl) phosphine, tris (isopropylphenyl) phosphine, tris (tert-butylphenyl) phosphine, tris (2,4-dimethylphenyl) phosphine, tris (2,6-dimethylphenyl) phosphine, tris (2,4 , 6-trimethylphenyl) phosphine, tris (2,6-dimethyl-4-ethoxyphenyl) phosphine, tris (4-methoxyphenyl) phosphine, and tris (4-ethoxyphenyl) phosphine. It includes tertiary phosphines having Lumpur group. From the viewpoint of moldability, triphenylphosphine is preferable.

  Moreover, there is no restriction | limiting in particular as a quinone compound used for the adduct of a tertiary phosphine and a quinone compound. Specific examples include o-benzoquinone, p-benzoquinone, diphenoquinone, 1,4-naphthoquinone, anthraquinone, and the like. From the viewpoint of moisture resistance or storage stability, p-benzoquinone is preferred.

The blending amount of the curing accelerator is not particularly limited as long as the curing acceleration effect is achieved. (A) epoxy resin, (B) curing agent, (C) 0.1 part by mass to 100 parts by mass of the total amount of monovalent or divalent phenols containing one or more nitrile groups in one molecule 10 mass parts is preferable and 0.3 mass part-5 mass parts are more preferable.
When it is 0.1 part by mass or more, it can be cured in a shorter time. Moreover, there exists a tendency which can suppress that a cure rate becomes quick too much that it is 10 mass parts or less, and a moldability falls.

(F) Inorganic filler It is preferable that the said epoxy resin molding material for sealing contains at least 1 sort (s) of an inorganic filler further. By further including the inorganic filler, effects such as reduction in hygroscopicity and linear expansion coefficient, improvement in thermal conductivity, and improvement in strength can be obtained.
The inorganic filler is not particularly limited as long as it is generally used for an epoxy resin molding material for sealing. Specifically, fused silica, crystalline silica, alumina, zircon, calcium silicate, calcium carbonate, potassium titanate, silicon carbide, silicon nitride, aluminum nitride, boron nitride, beryllia, zirconia, zircon, fosterite, steatite, spinel , Mullite, titania and other powders, beads spheroidized from these, and glass fibers.
These may be used alone or in combination of two or more.
Among these, fused silica is preferable from the viewpoint of reducing the linear expansion coefficient, and alumina is preferable from the viewpoint of high thermal conductivity, and the filler shape is preferably spherical from the viewpoint of fluidity during molding and mold wear. In particular, spherical fused silica is preferable from the viewpoint of a balance between cost and performance.

The blending amount of the inorganic filler is preferably 70% by mass to 95% by mass in the epoxy resin molding material for sealing from the viewpoints of flame retardancy, moldability, hygroscopicity, reduction of linear expansion coefficient and improvement of strength.
There exists a tendency for a flame retardance and reflow resistance to improve that it is 70 mass% or more. Moreover, there exists a tendency which can suppress that a fluidity falls that it is 95 mass% or less.

Moreover, the epoxy resin molding material for sealing can contain an anion exchanger as required. As a result, the moisture resistance and high temperature storage characteristics of the IC can be improved.
The anion exchanger is not particularly limited, and conventionally known anion exchangers can be used. Examples thereof include hydrotalcites and hydrated oxides of elements selected from magnesium, aluminum, titanium, zirconium, and bismuth. These may be used alone or in combination of two or more. Of these, hydrotalcite represented by the following composition formula (XX) is preferable.

In general formula (XX), X represents a number satisfying 0 <X ≦ 0.5, and m represents a positive number.
The content of the anion exchanger is not particularly limited as long as it is a sufficient amount capable of capturing anions such as halogen ions, but (A) with respect to 100 parts by mass of the epoxy resin, 30 mass parts is preferable and 1 mass part-5 mass parts are more preferable.

The sealing epoxy resin molding material may contain a release agent as necessary. As a mold release agent, it is preferable to use 0.01 mass part-10 mass parts with respect to 100 mass parts of (A) epoxy resins, and 0.1 mass part-5 mass parts are used for an oxidation type or non-oxidation type polyolefin. It is more preferable.
There exists a tendency for sufficient mold release property to be acquired as it is 0.01 mass part or more. Moreover, there exists a tendency which can suppress that adhesiveness falls that it is 10 mass parts or less.
Examples of the oxidized or non-oxidized polyolefin include low molecular weight polyethylene having a number average molecular weight of about 500 to 10,000, such as trade name H4 manufactured by Hoechst Corporation, PE, and PED series.

Examples of the release agent other than the oxidized or non-oxidized polyolefin include carnauba wax, montanic acid ester, montanic acid, stearic acid, and the like.
These may be used alone or in combination of two or more. When these other release agents are used in addition to oxidized or non-oxidized polyolefin, the total content is preferably 0.1 to 10 parts by mass with respect to 100 parts by mass of (A) epoxy resin. 0.5 parts by mass to 3 parts by mass is more preferable.

  The sealing epoxy resin molding material may contain a conventionally known flame retardant as required. Specific examples of the flame retardant include red coated with inorganic materials such as brominated epoxy resin, antimony trioxide, red phosphorus, aluminum hydroxide, magnesium hydroxide, and zinc oxide and / or thermosetting resins such as phenol resin. Phosphorus, phosphorus compounds such as phosphate esters, melamine, melamine derivatives, melamine-modified phenol resins, compounds having a triazine ring, nitrogen-containing compounds such as cyanuric acid derivatives and isocyanuric acid derivatives, phosphorus and nitrogen-containing compounds such as cyclophosphazene, water Examples thereof include aluminum oxide, magnesium hydroxide, and a composite metal hydroxide represented by the following composition formula (XXI).

In the composition formula (XXI), M ¹ , M ^2, and M ³ represent different metal elements. a, b, c, d, p, q, and m represent positive numbers. r represents 0 or a positive number.

M ¹ , M ^2, and M ^{3 in the} composition formula (XXI) are not particularly limited as long as they are different metal elements. From the viewpoint of flame retardancy, M ¹ is selected from metal elements belonging to the third period metal element, group IIA alkaline earth metal element, group IVB, group IIB, group VIII, group IB, group IIIA and group IVA M ² is preferably selected from Group IIIB to IIB transition metal elements, M ¹ is selected from magnesium, calcium, aluminum, tin, titanium, iron, cobalt, nickel, copper and zinc, and M ² is iron. More preferably, it is selected from cobalt, nickel, copper and zinc.
From the viewpoint of fluidity, it is preferable that M ¹ is magnesium, M ² is zinc or nickel, and r = 0.

  The molar ratio of p, q and r is not particularly limited, but it is preferable that r = 0 and p / q is 1/99 to 1/1. The metal element is classified into a long-period periodic table in which the typical element is the A group and the transition element is the B group (Source: Kyoritsu Shuppan Co., Ltd., “Chemical Dictionary 4”, February 15, 1987). (Reduced plate 30th printing).

Examples of the flame retardant include compounds containing metal elements such as zinc oxide, zinc stannate, zinc borate, iron oxide, molybdenum oxide, zinc molybdate, and dicyclopentadienyl iron.
These flame retardants may be used alone or in combination of two or more. There are no particular restrictions on the amount of flame retardant compounded. (A) 1 mass part-30 mass parts are preferable with respect to 100 mass parts of epoxy resins, and 2 mass parts-15 mass parts are more preferable.

  Furthermore, the epoxy resin molding material for sealing may contain a colorant such as carbon black, organic dye, organic pigment, titanium oxide, red lead, bengara and the like. Furthermore, as other additives, stress relaxation agents such as silicone oil and silicone rubber powder can be contained as required.

The method for producing the sealing epoxy resin molding material is not particularly limited, and any method can be used as long as various components can be uniformly dispersed and mixed. As a general method, there can be mentioned a method in which components of a predetermined blending amount are sufficiently mixed by a mixer or the like, then melt-kneaded by a mixing roll, an extruder or the like, and then cooled and pulverized. For example, a predetermined amount of the above-mentioned components can be uniformly stirred and mixed, and can be obtained by a method such as kneading, cooling, and pulverizing with a kneader, roll, extruder, etc. that have been heated to 70 ° C. to 140 ° C. in advance. .
Furthermore, the epoxy resin molding material for sealing is easy to use if it is tableted with a size and mass that meet the molding conditions.

As an electronic component device having an element sealed with an epoxy resin molding material for sealing obtained in the present invention, a lead frame, a wired tape carrier, a wiring board, glass, a silicon wafer, a support member such as a semiconductor, An electronic component device in which active elements such as chips, transistors, diodes, and thyristors, passive elements such as capacitors, resistors, and coils are mounted, and necessary portions are sealed with the sealing epoxy resin molding material. Etc.
As such an electronic component device, for example, after fixing a semiconductor element on a lead frame and connecting a terminal part and a lead part of an element such as a bonding pad by wire bonding or bump, the sealing epoxy resin molding material DIP (Dual Inline Package), PLCC (Plastic Leaded Chip Carrier), QFP (Quad Flat Package), SOP (Small Outline Package), SOJ (Small Outline J-lead Package) ), TSOP (Thin Small Outline Package), TQFP (Thin Quad Flat Package) and other general resin-sealed ICs, and semiconductor chips connected to tape carriers by bumps are sealed with the above-mentioned epoxy resin molding material for sealing TCP (Tape Carrier Package), wiring formed on wiring boards and glass, wire bonding, flip chip bonding, soldering COB (Chip On Board) in which at least one of active elements such as semiconductor chips, transistors, diodes, and thyristors and passive elements such as capacitors, resistors, and coils connected with each other is sealed with the sealing epoxy resin molding material A module, a hybrid IC, a multichip 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 after connecting the element and the wiring formed on the organic substrate by bump or wire bonding, Examples thereof include BGA (Ball Grid Array) and CSP (Chip Size Package) in which the element is sealed with an epoxy resin molding material for sealing. Moreover, the epoxy resin molding material for sealing can also be used effectively for a printed circuit board.

  As a method for sealing an element using the sealing epoxy resin molding material, a low-pressure transfer molding method is the most common, but an injection molding method, a compression molding method, or the like may be used.

  EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples. Unless otherwise specified, “%” is based on mass.

Preparation of Epoxy Resin Molding Material for Sealing The following components were blended in parts by mass shown in Tables 1 to 8 below, and roll kneading was performed under conditions of a kneading temperature of 80 ° C. and a kneading time of 10 minutes. 31 and the epoxy resin molding material for sealing of Comparative Examples 1-31 were produced. In addition, the blank ("-") in a table | surface represents no mixing | blending.
(A) The following was used as an epoxy resin.
Epoxy resin 1: biphenyl type epoxy resin having an epoxy equivalent of 196 and a melting point of 106 ° C. (trade name YX-4000 manufactured by Mitsubishi Chemical Corporation)
Epoxy resin 2: phenol-aralkyl type epoxy resin containing biphenylene skeleton having an epoxy equivalent of 241 and a softening point of 96 ° C. (trade name CER-3000L manufactured by Nippon Kayaku Co., Ltd.)
Epoxy resin 3: phenol aralkyl type epoxy resin having an epoxy equivalent of 238 and a softening point of 55 ° C. (trade name NC-2000L manufactured by Nippon Kayaku Co., Ltd.)
Epoxy resin 4: Ortho-cresol novolak type epoxy resin having an epoxy equivalent of 202 and a softening point of 60 ° C. (trade name N-660, manufactured by Dainippon Ink and Chemicals, Inc.)

(B) As the curing agent, the following was used.
Curing agent 1: Phenol aralkyl resin having a hydroxyl group equivalent of 176 and a softening point of 70 ° C. (trade name XLC manufactured by Mitsui Chemicals, Inc.)
Curing agent 2: Phenol novolak resin having hydroxyl group equivalent of 106 and softening point of 83 ° C.

(C) As the monovalent or divalent phenol derivative (hereinafter also referred to as “nitrile-phenol compound”) having one or more nitrile groups in the molecular structure, the following was used.
Nitrile-phenol compound 1: p-cyanophenol Nitrile-phenol compound 2: o-cyanophenol Nitrile-phenol compound 3: 4-hydroxyphthalonitrile Nitrile-phenol compound 4: 3,4-dihydroxybenzonitrile Nitrile-phenol compound 5: 2,3-dicyanohydroquinone

Moreover, in the comparative example, the following materials were used instead of the nitrile-phenol compound.
Phenol compound 1: Phenol Phenol compound 2: p-cresol Phenol compound 3: Catechol Phenol compound 4: Resorcinol Phenol compound 5: Hydroquinone Nitriles 1: Stearonitrile Nitriles 2: (Z) -9-octadecenenitrile

(D) As the silane compound, the following was used.
Silane compound 1: γ-glycidoxypropyltrimethoxysilane

(E) The following was used as a hardening accelerator.
Curing accelerator 1: Betaine adduct of triphenylphosphine and p-benzoquinone

(F) As the inorganic filler, the following was used.
Inorganic filler 1: spherical fused silica with an average particle size of 19 μm and specific surface area of 3.17 m ² / g Inorganic filler 2: spherical fused silica with an average particle size of 0.5 μm and specific surface area of 7 m ² / g Montanate ester and carbon black were used.

  The epoxy resin molding materials for sealing of Examples and Comparative Examples were evaluated by the following various characteristic tests (1) to (6). The evaluation results are summarized in Table 9 to Table 16 below. The epoxy resin molding material for sealing was molded by a transfer molding machine under conditions of a mold temperature of 180 ° C., a molding pressure of 6.9 MPa, and a curing time of 90 seconds unless otherwise specified. Further, post-curing was performed at 180 ° C. for 5 hours. In addition, “-” in the table indicates that it has not been evaluated.

(1) Spiral flow Using a spiral flow measurement mold in accordance with EMMI-1-66, the sealing epoxy molding material was molded under the above conditions, and the flow distance (cm) was determined.
(2) Hardness under heat The epoxy resin molding material for sealing is molded into a disc having a diameter of 50 mm and a thickness of 3 mm under the above conditions, and immediately after molding, a Shore D hardness tester (HD-1120 manufactured by Ueshima Seisakusho Co., Ltd. (Type D )).
(3) Water absorption rate The disk molded in (2) is post-cured under the above conditions, left for 168 hours under the conditions of 85 ° C. and 60% RH, and the mass change before and after being left is measured. %) = {(Disc mass after leaving -disc mass before leaving) / disc mass before leaving} × 100.
(4) Elastic modulus at 260 ° C (high temperature bending test)
A three-point bending test according to JIS-K-6911 was performed using a bending tester (A & D Tensilon), and maintained at 260 ° C. in a thermostatic bath, bending elastic modulus (E), bending strength (S) and fracture Each elongation (ε) was determined. The measurement was performed using a test piece obtained by molding an epoxy resin molding material for sealing into 10 mm × 70 mm × 3 mm under the above conditions, and a head speed of 1.5 mm / min. It went on condition of. The flexural modulus (E) is defined by the following formula.

(5) Measurement of adhesive strength with metal at 260 ° C (measurement of shear strength)
The epoxy resin molding material for sealing is formed into a cylindrical shape with a diameter of 4 mm and a height of 5 mm on a copper plate or a silver-plated copper plate under the above conditions, post-cured, and various types of copper plates are formed by a bond tester (Daisy series 4000). While maintaining the temperature at 260 ° C., the shear adhesive force was measured at a shear rate of 50 μm / s.
(6) Reflow resistance 80 × flat package with outer dimensions of 20 × 14 × 2 mm mounted with 8 × 10 × 0.4 mm silicone chip (lead frame material: copper alloy, die pad top surface and lead tip silver plated product) ) Were molded under the above conditions using an epoxy resin molding material for sealing, post-cured, and allowed to stand for 1 week under conditions of 85 ° C. and 60% RH, then Examples 1 to 23 and Comparative Examples 1 to 23 Is 240 ° C., Examples 24-27 and Comparative Examples 24-27 are 230 ° C. (* 1), Examples 27-31 and Comparative Examples 27-31 are reflow-treated at 220 ° C. (* 2), and resin The presence / absence of delamination at the / frame interface was observed using an ultrasonic flaw detector (HYE-FOCUS manufactured by Hitachi Construction Machinery Co., Ltd.), and the number of delamination packages with respect to 5 test packages was evaluated.

  The characteristics of the above (1) to (6) are compared with Examples and Comparative Examples with the same combination of epoxy resin and curing agent. For example, Examples 1 to 23 and Comparative Examples 1 to 23, which are combinations of Epoxy Resin 1 and 2 / Curing Agent 1, Examples 24 to 27 and Comparative Examples 24 to 27, which are combinations of Epoxy Resin 1 and 3 / Curing Agent 1 27, Examples 28 to 31 which are combinations of epoxy resin 1 and 4 / curing agent 2 are compared with Comparative Examples 28 to 31. Tables 7 to 12 show that the examples to which the nitrile-phenol compound was added had higher 260 ° C. shear adhesive strength (silver and copper) than the comparative examples, and were left for 1 week at 85 ° C. and 60% RH. In the reflow treatment, no peeling of the resin / frame interface occurs, and the reflow resistance is excellent.

  In Examples 8 to 19 using the nitrile-phenol compounds 1 to 3, the high-temperature elastic modulus is smaller, and the effect of reducing thermal stress is greater. In addition, no peeling of the resin / frame interface occurs in any of the examples.

  On the other hand, comparative examples having compositions different from those of the present invention do not satisfy the object of the present invention. Compared to the examples, 260 ° C shear adhesive strength (silver and copper) is the same or less, and in reflow treatment after standing for 1 week at 85 ° C and 60% RH, peeling of the resin / frame interface occurs in most packages. Generated and inferior in reflow resistance.

Claims (6)

(A) containing an epoxy resin having two or more epoxy groups in one molecule, (B) a curing agent, and (C) a monovalent or divalent phenol derivative having one or more nitrile groups in the molecular structure And
The (C) phenol derivative is o-cyanophenol, m-cyanophenol, p-cyanophenol, o-hydroxyphenylacetonitrile, m-hydroxyphenylacetonitrile, p-hydroxyphenylacetonitrile, 4-cyano-4'-hydroxybiphenyl. 4-cyano-4′-hydroxydiphenyl ether, 4-cyano-4′-hydroxydiphenylmethane, 2,2- (4-cyano-4′-hydroxy) diphenylpropane, 4-cyano-4′-hydroxybenzophenone, 6- cyano-2-naphthol, 4-hydroxy-phthalonitrile, 3,4-dihydroxy benzonitrile, 2,3-dicyano-hydroquinone and epoxy resin molding at least one der Ru seal selected from the group consisting of regioisomers material.   The epoxy resin molding material for sealing according to claim 1, wherein the content of the (C) phenol derivative is 0.10% by mass to 1.08% by mass.   (D) The epoxy resin molding material for sealing according to claim 1 or 2, further comprising a silane compound.   (E) The epoxy resin molding material for sealing of any one of Claims 1-3 which further contains a hardening accelerator.   (F) The epoxy resin molding material for sealing according to any one of claims 1 to 4, further comprising an inorganic filler.   An electronic component apparatus provided with the element sealed with the epoxy resin molding material for sealing of any one of Claims 1-5.