Patent ID: 11916061
Assignee: STMICROELECTRONICS S.R.L.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electronic circuit, comprising:
a semiconductor substrate including a first region doped with a first conductivity type and a second region doped with a second conductivity type;
a cathode region doped with the second conductivity type in contact with the first doped region;
an anode region doped with the first conductivity type in contact with the second region;
an insulating layer extending over both the first doped region and the second doped region;
a semiconductor layer extending over the insulating layer, said semiconductor layer including a source region doped with the second conductivity type, a channel region doped with the first conductivity type and a drain region doped with the second conductivity type;
a first insulating wall extending into the first doped region between the cathode region and source region;
a second insulating wall extending into the second doped region between the anode region and drain region;
a contact region doped with the first conductivity type, positioned to cross through a thickness of the insulating layer, and electrically coupled between channel region and the source region and the first region;
an insulated gate electrode extending over the channel region;
wherein the anode region is electrically connected to the drain region;
wherein said anode region, second region, first region and cathode region form a thyristor; and
wherein said source region, channel region, drain region and insulated gate electrode form a transistor.