Patent ID: 11901235
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 0:
1. A device comprising:
a first nanostructure, the first nanostructure comprising a first doped channel junction at either end, doped by a first dopant;
a second nanostructure over the first nanostructure, the second nanostructure comprising a second doped channel junction at either end, doped by a second dopant, wherein the first dopant and the second dopant comprise different materials;
a gate structure disposed over the first nanostructure and the second nanostructure, the gate structure extending between the first nanostructure and the second nanostructure;
an epitaxial region adjacent the gate structure, the epitaxial region contacting the first nanostructure and the second nanostructure; and
an inner spacer disposed at either end of the first nanostructure, the inner spacer extending between the first nanostructure and the second nanostructure, the inner spacer interposed between a gate dielectric of the gate structure and the epitaxial region, wherein an interface between the epitaxial region and the inner spacer is free of the first dopant or the second dopant.