Patent ID: 11923361
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 6:
7. The semiconductor device structure as claimed in claim 1, further comprising:
a second semiconductor fin over the substrate, wherein the semiconductor fin and the second semiconductor fin are separated from each other;
a plurality of second semiconductor nanostructures over the second semiconductor fin, wherein each of the second semiconductor nanostructures is wider than each of the semiconductor nanostructures;
a second gate stack extending across the second semiconductor fin, wherein the second gate stack wraps around each of the second semiconductor nanostructures;
a third epitaxial structure and a fourth epitaxial structure sandwiching the second semiconductor nanostructures, wherein each of the third epitaxial structure and the fourth epitaxial structure extends exceeding a top surface of the second semiconductor fin; and
a second isolation structure between the second semiconductor fin and the second gate stack.