Patent ID: 11955530
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. An integrated circuit comprising:
a substrate having a first conductivity type, the substrate having an upper surface;
a well formed at the upper surface, the well having a second conductivity type that is opposite the first conductivity type, the well having a first dopant concentration;
a first shallow trench isolation (STI) structure formed at the upper surface and within the well;
a second STI structure formed at the upper surface and within the well;
a first polysilicon gate structure formed over the upper surface between the first STI structure and the second STI structure, a first portion of the first polysilicon gate structure extending over a first side of the first STI structure and a second portion of the first polysilicon gate structure extending over a first side of the second STI structure;
a first doped region formed within the well at the upper surface and on a second side of the first STI structure; and
a second doped region formed within the well at the upper surface and on a second side of the second STI structure, the first and second doped regions each having the second conductivity type and a second dopant concentration that is greater than the first dopant concentration.