Increase of the Robustness of the junction terminations of power devices by a lateral variation of the Emitter Efficiency

A new diode technology called Emitter Controlled (EC)-HDR (High Dynamic Robustness) that allows a pronounced enhancement in switching safe-operating area has been developed. For the first time, the concept used for this drastic improvement is presented. The same principle has been applied to the Insulated Gate Bipolar Transistor (IGBT).