Patent ID: 8716746
Filing Date: 2014-05-06
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate including a first conductivity-type drift layer and a second conductivity-type base layer disposed on the drift layer, a surface of the drift layer opposite to the base layer defining a first surface of the semiconductor substrate, a surface of the base layer opposite to the drift layer defining a second surface of the semiconductor substrate; a second conductivity-type collector layer disposed adjacent to the second surface of the semiconductor substrate; a first conductivity-type cathode layer disposed adjacent to the second surface of the semiconductor substrate at a same level as the collector layer; and a collector electrode disposed on the collector layer and the cathode layer, wherein the IGBT cell and the diode cell further include an emitter electrode that is electrically connected to the emitter region, the first contact region and the second contact region, and the diode cell further includes: