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

Claim 7:
8. A structure, comprising:
a substrate;
first and second semiconductor fins on the substrate, the second semiconductor fin being taller than the first semiconductor fin;
a first insulating fin on the substrate, between the first and the second semiconductor fins, the first insulating fin having a first height;
a second insulating fin on the substrate, adjacent to the first semiconductor fin, the first semiconductor fin positioned between the first and the second insulating fins, and the second insulating fin having a second height;
a third insulating fin on the substrate, adjacent to the second semiconductor fin, the third insulating fin having a third height, wherein the second semiconductor fin is positioned between the first and the third insulating fins, and wherein the first, second, and third heights are substantially equal; and
a dielectric layer on the substrate, the dielectric layer covering a bottom portion of the first and second semiconductor fins and a bottom portion of the first, second, and third insulating fins.