Patent ID: 8465837
Filing Date: 2013-06-18
Classification: C08K,C08L,H01L,H05K,Y10T

Abstract:
1. An epoxy resin composition comprising, as essential components, an epoxy resin (A) having a structure represented by general formula (1), a curing agent (B), an inorganic filler (C), and a cyanate resin and/or a prepolymer of the cyanate resin (D), wherein Ar represents a substituted fused aromatic hydrocarbon group; r is an integer of 1 or more; X represents a hydrogen or an epoxy group (glycidyl ether group); R wherein the substituted fused aromatic hydrocarbon group [Ar] in said epoxy resin (A) having the structure represented by general formula (1) is one selected from the group consisting of the structures represented by formulas (Ar1) to (Ar4), wherein R