Patent ID: 8659130

Claim:
A power module comprising: a sealing body including a semiconductor element having a plurality of electrode surfaces, a first conductor plate connected to one electrode surface of the semiconductor element via solder, and a sealing material for sealing the semiconductor element and the first conductor plate, the sealing body having at least a first surface and a second surface on an opposite side of the first surface; and a case for housing the sealing body, wherein the case is configured by a first heat radiation plate opposed to the first surface of the sealing body, a second heat radiation plate opposed to the second surface of the sealing body, and an intermediate member that connects the first heat radiation plate and the second heat radiation plate, the intermediate member has a first thin section having thickness smaller than thickness of the first heat radiation plate, more easily elastically deformed than the first heat radiation plate, and formed to surround the first heat radiation plate, and the sealing body is pressed against and fixed to the second heat radiation plate via the first heat radiation plate by elastic force generated in the first thin section.