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. 10, 2025

Filed:

Dec. 13, 2021
Applicant:

Kioxia Corporation, Tokyo, JP;

Inventors:

Taiga Isoda, Seoul, KR;

Eiji Kitagawa, Seoul, KR;

Young Min Eeh, Seongnam-si, KR;

Tadaaki Oikawa, Seoul, KR;

Kazuya Sawada, Seoul, KR;

Assignee:

Kioxia Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10N 50/10 (2023.01); H10B 61/00 (2023.01); H10N 50/80 (2023.01); H10N 50/85 (2023.01);
U.S. Cl.
CPC ...
H10N 50/10 (2023.02); H10B 61/00 (2023.02); H10N 50/80 (2023.02); H10N 50/85 (2023.02);
Abstract

A magnetoresistance memory device includes first, second, third and fourth ferromagnetic layers; a first and second ferromagnetic oxide layers; a metal layer; an insulating layer. The second ferromagnetic layer includes one of iron and cobalt included in the first ferromagnetic oxide layer and one element of a first element group. The second ferromagnetic oxide layer includes an oxide of an alloy of the one of iron and cobalt included in the second ferromagnetic oxide layer with a first element, which has a standard electrode potential lower than that of iron or cobalt and that of the one element of the first element group included in the second ferromagnetic layer.


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