Patent ID: 8976537
Filing Date: 2015-03-10
Classification: H01L,H05K,Y02P

Abstract:
1. A semiconductor device having a control board part with a semiconductor element mounted thereon, wherein said control board part includes an elastic washer having elastic force sandwiched between a first planar member and a second planar member, each having formed therein a through hole through which said predetermined screw is inserted, is interposed between said first main surface of said substrate body and said attachment plate, and said predetermined screw is inserted from said second main surface of said substrate body through a substrate through hole extending through said substrate body, said first planar member, said elastic washer, and said second planar member and is screwed into a screw hole formed in said attachment plate, thereby fixing said attachment plate to said substrate body; and a land electrically connected at a ground potential formed in said substrate body.