Patent ID: 11910586
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A device, comprising:
a first transistor formed on a first active region within a first well region;
a second transistor formed on a second active region within a second well region, the second well region forming a PN junction with the first well region; and
a shared gate structure shared by the first transistor and the second transistor, the shared gate structure comprising:
a first work function film overlapping the first active region;
a second work function film overlapping the second active region, the second work function film having a different material composition than the first work function film; and
a conductive film overlapping both the first work function film and the second work function film.