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

Claim 15:
16. A semiconductor device, comprising:
a first diode having at least one first doped strap and a second doped strap in a first well, wherein the at least one first doped strap is configured as at least one terminal coupled to a first voltage terminal and the second doped strap is coupled to an input/output (I/O) pad; and
a second diode having a third doped strap that is in a second well different from the first well and separated from the at least one first doped strap,
wherein the third doped strap is configured as a first terminal of the second diode to be coupled to a second voltage terminal,
wherein the first diode and the second diode are included a semiconductor structure configured to operate as an equivalent silicon controlled rectifier circuit between the I/O pad and the second voltage terminal.