Patent ID: 11910585
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 16:
17. A semiconductor device, comprising:
a circuit region;
a first well-pick up (WPU) region;
a first well oriented lengthwise along a first direction in the circuit region and extending into the first WPU region, the first well having a first conductivity type; and
a second well oriented lengthwise along the first direction in the circuit region and extending into the first WPU region, the second well having a second conductivity type different from the first conductivity type,
wherein a width of the first well in the circuit region is less than a width of the first well in the first WPU region, and wherein the second well surrounds the first well.