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.
Patent No.:
Date of Patent:
Jun. 30, 2020
Filed:
Oct. 18, 2018
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Kohei Honma, Tokyo, JP;
Satoshi Miura, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 43/08 (2006.01); H01L 43/10 (2006.01); G01R 33/09 (2006.01); H01L 27/22 (2006.01); H01L 43/12 (2006.01);
U.S. Cl.
CPC ...
H01L 43/08 (2013.01); G01R 33/098 (2013.01); H01L 27/22 (2013.01); H01L 43/10 (2013.01); H01L 43/12 (2013.01);
Abstract
A magnetoresistive element has a magnetization free layer whose magnetization direction changes in an external magnetic field; a magnetization pinned layer whose magnetization direction is pinned in the external magnetic field; and a barrier layer that is positioned between the magnetization free layer and the magnetization pinned layer and that exhibits a magnetoresistive effect. The barrier layer is an oxide of an alloy that includes Mg and Al, and the barrier layer includes a crystalline region and a non-crystalline region.