The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2024
Filed:
Sep. 27, 2021
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Yi Song, Albany, NY (US);
Chi-Chun Liu, Altamont, NY (US);
Robin Hsin Kuo Chao, Portland, OR (US);
Muthumanickam Sankarapandian, Niskayuna, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/66 (2006.01); H01L 29/423 (2006.01); H01L 29/786 (2006.01);
U.S. Cl.
CPC ...
H01L 29/78696 (2013.01); H01L 29/42392 (2013.01); H01L 29/66553 (2013.01); H01L 29/66742 (2013.01); H01L 29/78618 (2013.01);
Abstract
A semiconductor structure comprises a plurality of gate structures alternately stacked with a plurality of channel layers, and a plurality of spacers disposed on lateral sides of the plurality of gate structures. The respective ones of the plurality of spacers comprise a profile having a first portion comprising a first shape and a second portion comprising a second shape, wherein the first shape is different from the second shape.