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:
Aug. 20, 2024
Filed:
Oct. 19, 2021
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventor:
Ruqiang Bao, Niskayuna, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/027 (2006.01); H01L 29/49 (2006.01); H01L 29/78 (2006.01);
U.S. Cl.
CPC ...
H01L 29/4966 (2013.01); H01L 21/0274 (2013.01); H01L 29/4908 (2013.01); H01L 29/785 (2013.01);
Abstract
A semiconductor structure includes a common semiconductor substrate; a first field effect transistor (FET) gate formed on the substrate, which has a first threshold voltage and comprises a first work function metal and a first barrier layer, and a second FET gate formed on the substrate, which has a second threshold voltage and comprises the first work function metal, the first barrier layer, and a second work function metal.