Patent ID: 11948839
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A structure, comprising:
a substrate;
a first semiconductor fin on the substrate;
a second semiconductor fin on the substrate, the second semiconductor fin being taller than the first semiconductor fin;
a first insulating fin over the substrate and between the first and the second semiconductor fins;
a second insulating fin on the substrate and adjacent to the first semiconductor fin, wherein the first semiconductor fin is positioned between the first and the second insulating fins;
a third insulating fin on the substrate and adjacent to the second semiconductor fin, wherein the second semiconductor fin is positioned between the first and the third insulating fins;
a first epitaxial stack on a portion of the first semiconductor fin; and
a second epitaxial stack on a portion of the second semiconductor fin, the second epitaxial stack being taller than the first epitaxial stack.