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. 13, 2026
Filed:
Dec. 06, 2022
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventor:
Kangguo Cheng, Schenectady, NY (US);
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H10B 63/00 (2023.01); H10N 70/00 (2023.01); H10N 70/20 (2023.01); G11C 13/00 (2006.01);
U.S. Cl.
CPC ...
H10B 63/84 (2023.02); H10N 70/023 (2023.02); H10N 70/231 (2023.02); H10N 70/8828 (2023.02); G11C 13/0097 (2013.01);
Abstract
A method is presented for reducing element segregation of a phase change material (PCM). The method includes forming a bottom electrode, constructing a layered stack over the bottom electrode, the layered stack including the PCM separated by one or more electrically conductive and chemically stable materials, and forming a top electrode over the layered stack. The PCM is Ge—Sb—Te (germanium-antimony-tellurium or GST) and the one or more electrically conductive and chemically stable materials are titanium nitride (TiN) segments.