Patent ID: 9591789
Date: 2017-03-07
CPC Classifications: H01L,H05K

Claim:
1. A power semiconductor module comprising: a semiconductor device; a conductor plate having a first surface on which the semiconductor device is mounted; a resin sealer that covers a side portion of the conductor plate and exposes at least part of the a second surface of the conductor plate that faces away from the first surface; and a spray coated film provided on an outer surface of the resin sealer and the at least part of the second surface of the conductor plate that is exposed through the resin sealer, and a recess is formed in the outer surface of the resin sealer, and the planar size of the recess is greater than the planar size of each flat portion that forms the spray coated film; wherein the spray coated film is continuously disposed on the outer surface of the resin sealer, in the recess, and on the at least part of the second surface of the conductor plate that is exposed through the resin sealer, without interruption.