Patent ID: 6933604

Claim:
A semiconductor module comprising: a semiconductor device including: a semiconductor chip integrally sealed in an insulating resin but having a back surface exposed and free from the insulating resin; a metal member sealed in the insulating resin with the semiconductor chip, the metal member having a top surface on which a pad is electrically connected to a bonding electrode of the semiconductor chip, side surfaces that are curved, and a back surface that is exposed and free from the insulating resin; a first supporting member having a conductive pattern provided therein, said conductive pattern being partially exposed to connect electrically to the exposed back surface of the metal member, and said first supporting member having an opening at a location corresponding to the semiconductor chip; a metal plate provided on the back surface of the semiconductor chip in the opening; and a second supporting member having the metal plate affixed thereto is adhered onto the back surface of the first supporting member; wherein a fixation plate made of a conductive material is provided on the second supporting member at a location corresponding to the metal plate, the fixation plate and the metal plate thermally coupled, and the metal plate is mainly made of Cu, the second supporting member is mainly made of Al, and the fixation plate is constituted by a plated film mainly made of Cu formed on the second supporting member.