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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.:

US 12563796 B1

PDFFull Text
Date of Patent:
Feb. 24, 2026

Filed:

Dec. 21, 2021

Extended lower source/drain for stacked field-effect transistor

Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Ruilong Xie, Niskayuna, NY (US);

Chen Zhang, Guilderland, NY (US);

Jingyun Zhang, Albany, NY (US);

Pietro Montanini, Albany, NY (US);

Assignee:

International Business Machines Corporation, Armonk, NY (US);

Attorney:

Gavin Giraud

Primary Examiner:

Britt Hanley

Assistant Examiner:

Casey Paul Boatman

Int. Cl.
CPC ...
H10D 62/10 (2025.01); H10D 30/67 (2025.01); H10D 84/01 (2025.01); H10D 84/03 (2025.01);
U.S. Cl.
CPC ...
H10D 62/118 (2025.01); H10D 30/6713 (2025.01); H10D 30/6757 (2025.01); H10D 62/115 (2025.01); H10D 84/0128 (2025.01); H10D 84/013 (2025.01); H10D 84/038 (2025.01);
Abstract

Embodiments herein include semiconductor structures with an active channel stack having an upper field-effect transistor (FET) and a lower FET vertically stacked below the upper FET The semiconductor structure may also include a dummy stub adjacent to the active channel stack, a lower source/drain (S/D) connected to the active channel stack and laterally extended over the dummy stub, and an upper S/D connected to the active channel stack above the lower S/D.

Find Patent Forward Citations

Xie, Ruilong. (2026). Extended lower source/drain for stacked field-effect transistor (U.S. Patent No. 12563796). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12563796

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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