Patent ID: 11935754
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A device comprising:
a first nanostructure;
a second nanostructure over the first nanostructure;
a high-k gate dielectric around the first nanostructure and the second nanostructure, the high-k gate dielectric having a first portion on a top surface of the first nanostructure and a second portion on a bottom surface of the second nanostructure; and
a gate electrode over the high-k gate dielectric, wherein the gate electrode comprises:
a first work function metal around the first nanostructure and the second nanostructure, the first work function metal comprising a seam between a first portion of the first work function metal and a second portion of the first work function metal, wherein the seam is disposed between the first nanostructure and the second nanostructure; and
a tungsten layer over the first work function metal.