Patent ID: 11961834
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. The semiconductor device of claim 9, wherein the first semiconductor structure in the second diode and the third diode comprises:
a substrate;
a first well of a first type disposed on the substrate, wherein the first doped region is of a second type different from the first type and disposed in the first well;
a second doped region of the first type disposed in the first well and configured as the second terminal of the second diode;
a second well of the second type disposed on the substrate and adjacent to the first well;
a third doped region of the first type disposed in the second well and configured as the first terminal of the third diode; and
a fourth doped region of the second type disposed in the second well and configured as the second terminal of the third diode;
wherein the first doped region, the first well, the substrate, the second well, and the third doped region are configured to operate as an equivalent silicon controlled rectifier (SCR) circuit.