Epoxy resin molding material for sealing and electronic component device

1. An epoxy resin molding material for sealing, comprising;

(A) an epoxy resin comprising a combination of an epoxy resin of the following general formula (X) in which each of R 1 to R 8 represents a hydrogen atom and i represents 0, and an epoxy resin of the following general formula (IV) in which each of R 1 to R 8 represents a hydrogen atom and n represents 0:

(B) a curing agent comprising a phenol aralkyl resin of the following general formula (XXXVII) in which n represents an integer from 0 to 10:

(C) a curing accelerator comprising an adduct of a tertiary phosphine and a quinone compound,

(D) an inorganic filler comprising a silica,

(E) silane compounds consisting of:

(E1) at least one arylamino group-containing alkoxysilane compound, and

(E2) at least one epoxy group-containing alkoxysilane compound,

wherein the epoxy resin molding material is substantially free of a silane compound different from the (E1) arylamino group-containing alkoxysilane compound and the (E2) epoxy group-containing alkoxysilane compound,

wherein a total amount of (E1) the arylamino group-containing alkoxysilane compound in the epoxy resin molding material for sealing is from 20% by mass to 60% by mass with respect to a total amount of (E1) the arylamino group-containing alkoxysilane compound and (E2) the epoxy group-containing alkoxysilane compound in the epoxy resin molding material for sealing,

wherein a total amount of (E1) the arylamino group-containing alkoxysilane compound and (E2) the epoxy group-containing alkoxysilane compound in the epoxy resin molding material for sealing is from 7.0% by mass to 12.0% by mass with respect to a total amount of epoxy resin contained in the epoxy resin molding material for sealing, and

wherein a content of (D) the inorganic filler is 87.5% by mass or more with respect to a total amount of the epoxy resin molding material.

2. The epoxy resin molding material for sealing according to claim 1 , wherein (E1) the arylamino group-containing alkoxysilane compound is a compound represented by the following general formula (I):

wherein in the general formula (I), R 1 and R 2 each independently represent a hydrocarbon group having 1 to 6 carbon atoms, which may have a substituent; p represents an integer from 1 to 3; and q represents 2 or 3.

3. The epoxy resin molding material for sealing according to claim 1 , wherein (E2) the epoxy group-containing alkoxysilane compound is at least one compounds represented by the following general formulas (II) or (III):

wherein in the general formula (II), R 1 and R 2 each independently represent a hydrocarbon group having 1 to 6 carbon atoms, which may have a substituent; p represents an integer from 1 to 3; and q represents 2 or 3; and

wherein in the general formula (III), R 1 and R 2 each independently represent a hydrocarbon group having 1 to 6 carbon atoms, which may have a substituent; p represents an integer from 1 to 3; and q represents 2 or 3.

4. An electronic component device comprising an element sealed with the epoxy resin molding material for sealing according to claim 1 .