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:
Aug. 02, 2022

Filed:

Sep. 09, 2020
Applicants:

Kioxia Corporation, Tokyo, JP;

SK Hynix Inc., Icheon-si, KR;

Inventors:

Taiga Isoda, Seoul, KR;

Eiji Kitagawa, Seoul, KR;

Young Min Eeh, Seongnam-si, KR;

Tadaaki Oikawa, Seoul, KR;

Kazuya Sawada, Seoul, KR;

Jin Won Jung, Icheon-si, KR;

Assignees:

KIOXIA CORPORATION, Tokyo, JP;

SK HYNIX INC., Icheon-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); G11C 11/16 (2006.01); H01L 43/08 (2006.01); G01R 33/09 (2006.01); H01L 43/02 (2006.01); H01L 43/10 (2006.01);
U.S. Cl.
CPC ...
G11C 11/161 (2013.01); G01R 33/093 (2013.01); H01L 43/02 (2013.01); H01L 43/08 (2013.01); H01L 43/10 (2013.01);
Abstract

A memory device includes a first ferromagnetic layer, an insulating layer above the first ferromagnetic layer, a second ferromagnetic layer above the insulating layer, a capping layer on an upper surface of the second ferromagnetic layer, and an electrode on an upper surface of the capping layer. The second ferromagnetic layer includes iron atoms. The capping layer includes one or more elements identical to one or more elements in the second ferromagnetic layer. The electrode includes one or more elements identical to one or more of the elements in the capping layer and includes a material having a Vickers hardness higher than a Vickers hardness of an iron atom.


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