Patent ID: 7492034
Filing Date: 2009-02-17
Classification: H01L

Abstract:
1. A semiconductor device, comprising: an emitter terminal, a collector terminal, a semiconductor body provided between emitter terminal and collector terminal, and an emitter zone of a first conductivity type, which is formed in the semiconductor body and has a first interface facing the emitter terminal and a second interface facing the collector terminal, the second interface adjoining a drift region formed in the semiconductor body between the emitter terminal and the collector terminal, wherein at least one MOS structure pervades the emitter zone, adjoins the emitter zone between the first interface and the second interface, and is configured such that corresponding MOS channels induced by the MOS structure within the emitter zone are at a distance from the first interface of the emitter zone, and wherein a dopant concentration within the MOS channels is higher than a dopant concentration in the emitter zone between the first interface of the emitter zone and the end sections of the MOS channels that face the first interface.