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:
May. 25, 2021

Filed:

Nov. 27, 2019
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Yushi Kato, Tokyo, JP;

Soichi Oikawa, Tokyo, JP;

Hiroaki Yoda, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/16 (2006.01); G11C 11/15 (2006.01); H01L 27/12 (2006.01); H01L 43/10 (2006.01); H01L 43/02 (2006.01);
U.S. Cl.
CPC ...
G11C 11/15 (2013.01); G11C 11/161 (2013.01); H01L 27/1222 (2013.01); H01L 43/02 (2013.01); H01L 43/10 (2013.01);
Abstract

According to one embodiment, a magnetic memory device includes a conductive member, a first magnetic layer, a first counter magnetic layer, and a first nonmagnetic layer. The conductive member includes a first portion, a second portion, and a third portion between the first portion and the second portion. The first counter magnetic layer is provided between the third portion and the first magnetic layer in a first direction crossing a second direction. The second direction is from the first portion toward the second portion. The first nonmagnetic layer is provided between the first magnetic layer and the first counter magnetic layer. The third portion includes a first position, and a second position between the first position and the first counter magnetic layer in the first direction. A second concentration of boron at the second position is lower than a first concentration of boron at the first position.


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