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:
May. 20, 2025
Filed:
Nov. 11, 2022
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventor:
Tenko Yamashita, Schenectady, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10B 20/00 (2023.01); G11C 17/12 (2006.01); H10B 20/25 (2023.01); H10D 30/01 (2025.01); H10D 64/01 (2025.01);
U.S. Cl.
CPC ...
H10B 20/38 (2023.02); G11C 17/12 (2013.01); H10B 20/25 (2023.02); H10D 30/025 (2025.01); H10D 64/021 (2025.01);
Abstract
Provided is a read-only memory (ROM) device. The ROM device comprises a substrate that has a plurality of vertical transport field effect transistors (VFETs). The ROM device further comprises an un-activated semiconductor layer provided on each VFET. The un-activated semiconductor layer includes implanted dopants that have not been substantially activated.