Patent ID: 11862713
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A device comprising:
a fin structure disposed over a substrate, the fin structure including:
a first portion formed of a first semiconductor material, the first portion having a first concentration of a dopant;
a second portion formed of the first semiconductor material, the second portion of the fin structure positioned over and around the first portion of the fin structure; and
a doped layer disposed over and around the second portion of the fin structure, the doped layer formed of a second semiconductor material that is different than the first semiconductor material, wherein the second portion of the fin structure and the doped layer both include the dopant at a second concentration that is substantially uniform at any point of the second portion and the doped layer of the fin structure, wherein the second concentration of the dopant is considered substantially uniform when doping concentrations at any defined number of points of the second portion and the doped layer are within ±5% of each other, the second concentration of the dopant being different than the first concentration of the dopant;

a gate dielectric layer disposed over a portion of the fin structure; and
a gate electrode disposed over the gate dielectric layer.