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:
Jan. 27, 2026
Filed:
Dec. 14, 2022
International Business Machines Corporation, Armonk, NY (US);
Ruilong Xie, Niskayuna, NY (US);
Huai Huang, Clifton Park, NY (US);
Lawrence A. Clevenger, Saratoga Springs, NY (US);
Koichi Motoyama, Clifton Park, NY (US);
Nicholas Anthony Lanzillo, Wynantskill, NY (US);
Hosadurga Shobha, Niskayuna, NY (US);
Albert M. Chu, Nashua, NH (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A semiconductor structure with improved backside metal contacts includes a plurality of source/drain regions within a field effect transistor. A backside metal contact is electrically connected to at least one source/drain region of the plurality of source/drain regions. The backside metal contact includes a first taper profile. The semiconductor structure further includes a backside power rail electrically connected to the at least one source/drain region through the backside metal contact. The backside power rail includes a second taper profile that is different from the first taper profile.