Patent ID: 11869885
Assignee: INFINEON TECHNOLOGIES AG
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A silicon controlled rectifier (SCR), comprising:
a semiconductor body including a first main surface;
an active device region;
a first, a second, a third and a fourth surface contact area at the first main surface and arranged directly one after another along a first lateral direction, wherein the semiconductor body is electrically contacted at each of the first to fourth surface contact areas;
a first, a second, a third and a fourth SCR region, wherein the first and third SCR regions are of a first conductivity type and directly adjoin the first and third surface contact areas, respectively, and wherein the second and fourth SCR regions are of a second conductivity type and directly adjoin the second and fourth surface contact areas, respectively; and
a first well region of the first conductivity type,
wherein the first SCR region is electrically connected to the fourth SCR region, and the second SCR region is electrically connected to the third SCR region, and
wherein the first well region at least partially overlaps the second SCR region at the first main surface.