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

Claim 17:
18. A method of forming a semiconductor device, the method comprising:
forming, in an n-type device region, a fin protruding above a substrate;
forming n-type source/drain regions over the fin;
forming nanosheets over the fin and between the n-type source/drain regions, the nanosheets comprising a first semiconductor material;
forming a gate dielectric material around each of the nanosheets;
forming a first liner material around the gate dielectric material;
forming an n-type work function material around the first liner material;
forming a second liner material around the n-type work function material; and
forming a gate material around at least portions of the second liner material.