Patent ID: 11942374
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 8:
9. A semiconductor structure, comprising:
a first nanosheet field-effect transistor formed on a first portion of a substrate, the first nanosheet field-effect transistor formed on the first portion of a substrate includes a first source drain epitaxy, wherein a top surface of the first source drain epitaxy is above a top surface of a top-most nanosheet channel layer;
a second nanosheet field-effect transistors formed on a second portion of the substrate, the second nanosheet field-effect transistor formed on the second portion of the substrate includes a second source drain epitaxy and a third source drain epitaxy, wherein a top surface of the third source drain epitaxy is above the top surface of the top-most nanosheet channel layer; and
an etch stop liner around the first source drain epitaxy, the etch stop liner separates the first source drain epitaxy from an interlayer dielectric,
wherein the third source drain epitaxy is directly connected to at least the top-most nanosheet channel layer.