A FET-controlled thyristor in SIPMOS technology

The SIPMOS (Siemens Power MOS) technology was developed for power MOSFETs as well as a. c. power switches in which MOS technology is functionally combined with bipolar devices. This technology which has process steps like those of conventional integrated MOS circuits was used to realize a FET-controlled thyristor. The SIPMOS thyristor shows excellent qualities with regard to on-state current (di/dt=4000 A/us) voltage immunity (dV/dt > 1200 V/us), and firing sensitivity.