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:
Jan. 14, 2025

Filed:

Dec. 14, 2021
Applicant:

Kioxia Corporation, Tokyo, JP;

Inventors:

Taichi Igarashi, Seoul, KR;

Yuichi Ito, Seoul, KR;

Eiji Kitagawa, Seoul, KR;

Taiga Isoda, Seoul, KR;

Assignee:

Kioxia Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/14 (2006.01); H01L 29/82 (2006.01); H10B 61/00 (2023.01); H10N 50/80 (2023.01); H10N 50/85 (2023.01);
U.S. Cl.
CPC ...
H10N 50/80 (2023.02); H10B 61/10 (2023.02); H10N 50/85 (2023.02);
Abstract

According to one embodiment, a memory device includes a memory cell including a magnetoresistive effect element. The magnetoresistive effect element includes a non-magnetic layer between first and second electrodes in the first direction, a first magnetic layer between the first electrode and the non-magnetic layer, a second magnetic layer between the second electrode and the non-magnetic layer, and a first layer between the second electrode and the second magnetic layer. The first layer includes oxygen and at least one selected from magnesium, transition metal, and lanthanoid, the first layer has a first size in the first direction, the non-magnetic layer has a second size in the first direction. The first size is 1.1 times or more and 2 times or less the second size.


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