THYRISTOR MIT VERMINDERTER MITTELZONENDICKE.

摘要

The thyristor with a semiconductor body which resists blocking voltages in both forwards and backwards directions has emitter zones (2) on the anode side and/or base zones (3) on the cathode side, with openings (19,20) between the zones. Within the openings are contact zones (9,15) of the same conductivity type as the middle zone (1) which carries the cathodes (10) and anodes (14). The contact zones carry contacts (7,8) which are insulated from the cathodes and anodes. Connections are made to these contacts so that a positive potential can be applied to them. The openings form an interconnected pattern, with the contacts forming islands within the sections of the pattern, which can be strip shaped or circular.