Patent ID: 6943445
Filing Date: 2005-09-13
Classification: H01L,H02M

Abstract:
1. A semiconductor device comprising: at least two controllable semiconductor switches connected in a bridge form; at least one output terminal; at least two positive/negative polarity DC terminals; and an insulating substrate including a conductor section for mounting the semiconductor switches thereon; wherein the insulating substrate is configured such that at least two conductor layers having a conductor section on a surface thereof and in an inner layer thereof to bridge-connect the semiconductor switches and the DC terminals and at least two insulating layers are alternately laminated, the surface and inner-layer conductor layers interposing the insulating layer therebetween are electrically connected by a conductor passing through the insulating layer interposed between the conductor layers, and a current path is so provided as to allow a current flowing through a bridge circuit for mounting said at least two semiconductor switches on the insulating substrate to flow in opposite directions between the conductor layers interposing the insulating layer therebetween.