Patent ID: 8501874

Claim:
A thermosetting resin composition comprising at least a polyimide resin component (A) containing at least one polyimide, a phenol resin component (B) containing at least one phenol resin, and an epoxy resin component (C) containing at least one epoxy resin, wherein the mixing ratio by weight (A)/[(B)+(C)] is in a range of 0.4 to 2.0, the mixing ration by weight of the phenol resin component (B) and the epoxy resin component (C), wherein the polyimide resin (A) is produced by reacting an acid dianhydride component contains at least an acid dianhydride represented by general formula (1): wherein V represents a direct bond, —O—, —O-T-O—, —(C═O)—, —C(CF3)2-, or —C(CH3)2-, T representing a divalent organic group.