Anode Design Variation in 1200-V Trench Field-stop Reverse-conducting IGBTs

Reverse-conducting (RC) IGBTs with a monolithically integrated reverse diode are meanwhile available for soft-switching applications such as lamp ballast or inductive cooking as well as for hard-switching applications such as inverters in refrigerators, air conditioners or general purpose drives. In this paper, we present results on the electrical behavior of 1200-V RC-IGBTs designed predominantly for soft switching applications. Miscellaneous parameters of the RC- IGBT, namely its thickness, the field-stop profile and the p-emitter dose were varied under the additional constraint to improve the behavior also for more severe switching conditions.