Patent ID: 11935937
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 0:
1. A semiconductor device comprising:
a fin protruding above a substrate;
a gate structure over the fin;
source/drain regions over the fin on opposing sides of the gate structure; and
a first channel layer and a second channel layer disposed between the source/drain regions, wherein the second channel layer is between the first channel layer and the fin, wherein the gate structure comprises:
a gate dielectric material around the first channel layer and around the second channel layer;
a first liner material around and in contact with the gate dielectric material;
a work function material around and in contact with the first liner material;
a second liner material around and in contact with the work function material, wherein the first liner material and the second liner material are the same material; and
a gate electrode.