Patent ID: 11923439
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A semiconductor structure, comprising:
a substrate;
a fin structure on the substrate, wherein the fin structure comprises a first portion and a second portion;
a gate region on the first portion of the fin structure, the gate region comprising a plurality of nano-sheet layers in contact with a gate structure, wherein the gate structure wraps around each nano-sheet layer of the plurality of nano-sheet layers;
a first epitaxial layer within the second portion of the fin structure, wherein the first epitaxial layer protrudes into a side surface of each nano-sheet layer of the plurality of nano-sheet layers; and
a second epitaxial layer in contact with the bottom and side portions of the first epitaxial layer.