Patent ID: 11888049
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 10:
11. A semiconductor structure, comprising:
a first semiconductor base portion;
a first plurality of nanostructures disposed over the first semiconductor base portion;
a first gate segment disposed over the first semiconductor base portion and wrapping around each of the first plurality of nanostructures;
a second semiconductor base portion;
a second plurality of nanostructures disposed over the second semiconductor base portion;
a second gate segment disposed over the second semiconductor base portion and wrapping around each of the second plurality of nanostructures; and
a dielectric fin sandwiched between the first gate segment and the second gate segment,
wherein the dielectric fin comprises a base feature and a helmet feature over the base feature,
wherein the helmet feature comprises a bottom width and a top width greater than the bottom width such that the helmet feature comprises a tapered profile.