Patent ID: 11887979
Assignee: CSMC TECHNOLOGIES FAB2 CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. The method of claim 10, wherein the first conductivity type is N-type, and the second conductivity type is P-type, the step of forming, by lithographing and doping, respectively the first doped region, the second doped region, the third doped region, the fourth doped region, and the fifth doped region comprises:
forming the first doped region, the third doped region, and the fourth doped region by lithographing using a first implantation photomask, and ion-implantation;
forming the second doped region and the fifth doped region by lithographing using a second implantation photomask, and ion-implantation.