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.

Date of Patent:
Jun. 09, 2026

Filed:

Feb. 11, 2022
Applicant:

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

Inventors:

Kangguo Cheng, Schenectady, NY (US);

Juntao Li, Cohoes, NY (US);

Julien Frougier, Albany, NY (US);

Ruilong Xie, Niskayuna, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10N 70/00 (2023.01); H10N 70/20 (2023.01);
U.S. Cl.
CPC ...
H10N 70/8413 (2023.02); H10N 70/066 (2023.02); H10N 70/231 (2023.02); H10N 70/882 (2023.02); H10N 70/8825 (2023.02); H10N 70/8828 (2023.02);
Abstract

A confined phase-change memory cell with self-aligned electrode includes a first conductive structure within a first dielectric layer. A phase-change memory pillar including a first portion of a phase-change material is confined within a second dielectric layer and electrically connected to the first conductive structure. A second conductive structure within a third dielectric layer is surrounded by a second portion of the phase-change material for electrically connecting the second conductive structure to the phase-change memory pillar and reducing heat loss.


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