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:
Nov. 05, 2019
Filed:
Sep. 26, 2018
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Tomoyuki Sasaki, Tokyo, JP;
Tatsuo Shibata, Tokyo, JP;
Katsuyuki Nakada, Tokyo, JP;
Yoshitomo Tanaka, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 45/00 (2006.01); H01L 43/08 (2006.01); H01L 43/10 (2006.01); G11C 11/16 (2006.01); H01L 27/22 (2006.01); H01L 43/02 (2006.01); H01L 43/12 (2006.01); G11B 5/39 (2006.01);
U.S. Cl.
CPC ...
H01L 43/08 (2013.01); G11B 5/39 (2013.01); G11C 11/161 (2013.01); H01L 27/222 (2013.01); H01L 43/02 (2013.01); H01L 43/10 (2013.01); H01L 43/12 (2013.01); H01L 45/147 (2013.01); G11C 11/1675 (2013.01);
Abstract
A magnetoresistance effect element has a first ferromagnetic metal layer, a second ferromagnetic metal layer, and a tunnel barrier layer that is sandwiched between the first and second ferromagnetic metal layers, and the tunnel barrier layer has a spinel structure in which cations are disordered, and contains a divalent cation of a non-magnetic element, a trivalent cation of a non-magnetic element, oxygen, and one of nitrogen and fluorine.