Patent ID: 11923438
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An integrated circuit, comprising:
a plurality of field-effect transistor devices, wherein at least one of the field-effect transistor devices comprises:
a substrate comprising a semiconductor material;
a fin on the substrate, the fin comprising a first portion formed from the semiconductor material and a second portion comprising a channel region, wherein the first portion has a first thickness and the second portion has a second thickness greater than the first thickness;
a spacer disposed on sides of the first portion of the fin; and
a gate dielectric layer disposed on exterior surfaces of the second portion of the fin and on a portion of a sidewall of the spacer;
wherein sidewalls of the spacer disposed on sides of the first portion of the fin are aligned with a sidewall of the second portion of the fin.