Patent ID: 7820742

Claim:
An adhesive composition, which exhibits a melt viscosity at 40 to 80° C. of not more than 10,000 Pa·s, and which after heating for a period of 1 minute to 2 hours at a temperature within a range from 80° C. to (T+50)° C., exhibits a melt viscosity at a temperature of 100° C. to (T+30)° C. that is within a range from 300 to 10,000 Pa·s, wherein T represents a curing start temperature for said composition, said composition comprising: (A) at least one resin selected from the group consisting of polyamic acid resins having a diorganopolysiloxane chain and phenolic hydroxyl groups within a polymer backbone, and polyimide resins that are ring-closing derivatives of said polyamic acid resins, (B) an epoxy resin, (C) an epoxy resin curing catalyst, and (D) an inorganic filler comprising finely powdered silica, wherein said polyimide resin of said component (A) comprises a polyimide resin obtained by reacting a tetracarboxylic dianhydride with a diamine compound that comprises a diamine represented by a formula (1): wherein, R 1 groups represent identical or different bivalent organic groups of 3 to 9 carbon atoms, R 2 and R 3 are identical or different and each represents a methyl group or a phenyl group, and m represents an integer from 1 to 200, and wherein the quality of the inorganic filler of component (D) accounts for 33 to 70% by mass of the adhesive composition.