Patent ID: 11901438
Assignee: ADEIA SEMICONDUCTOR SOLUTIONS LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A semiconductor nanosheet device comprising:
epitaxial source-drain regions on opposite sides of a gate stack;
a vertical stack of nanosheets each extending in a horizontal direction between the epitaxial source-drain regions, and each comprising end portions in contact with the epitaxial source-drain regions and a center portion that extends between the end portions;
the gate stack surrounding each of the center portions; and
pairs of inner spacers on opposite sides of the gate stack, each pair separating a portion of the gate stack from the epitaxial source-drain regions, wherein:
a middle portion of each nanosheet is wider in the horizontal direction than a top portion and a bottom portion of the respective nanosheet.