Patent ID: 8576567

Claim:
A semiconductor device, comprising: an insulating film; a wiring provided on a first surface of the insulating film; a semiconductor element provided on the wiring; and a heat dissipating member provided on a second surface of the insulating film which second surface is opposite to the first surface, wherein the heat dissipating member comprises a first heat dissipating member, and the first heat dissipating member comprises at least one slit; the at least one slit is provided in the first heat dissipating member along a center line of the semiconductor element; and the at least one slit comprises at least one second slit provided in a region of the first heat dissipating member which region corresponds to an edge of the semiconductor element and a vicinity of the edge, said at least one second slit forming a radius of a sector of a circle, wherein a tip of a wedge angle of the sector is located along a center line of the first heat dissipating member.