Patent ID: 7696600
Filing Date: 2010-04-13
Classification: H01L

Abstract:
1. An IGBT, comprising: a front side contact, a rear side contact, a semiconductor volume disposed between the front side contact and the rear side contact, the semiconductor volume including a field stop layer for spatially delimiting an electric field that can be formed in the semiconductor volume, the semiconductor volume further includes a plurality of semiconductor zones, the plurality of semiconductor zones spaced apart from each other and each inversely doped with respect to adjacent areas, the plurality of semiconductor zones located within the field stop layer, wherein the semiconductor volume includes first, second and third semiconductor layers arranged in order on the rear side contact, the first semiconductor layer being a p-doped emitter layer, the field stop layer comprising the second semiconductor layer and being an n doped field stop layer, and the third semiconductor layer being an if doped base region, wherein the semiconductor zones comprise p-doped zones disposed within the second semiconductor layer, and wherein the plurality of semiconductor zones have a maximum doping of between 1E15 and 1E18 cm