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:
Apr. 16, 2019
Filed:
Mar. 20, 2017
Toshiba Memory Corporation, Minato-ku, Tokyo, JP;
Kazuya Sawada, Seoul, KR;
Toshihiko Nagase, Seoul, KR;
Youngmin Eeh, Seongnam-si, KR;
Daisuke Watanabe, Seoul, KR;
Kenichi Yoshino, Seoul, KR;
Tadaaki Oikawa, Seoul, KR;
Hiroyuki Ohtori, Seoul, KR;
TOSHIBA MEMORY CORPORATION, Tokyo, JP;
Abstract
According to one embodiment, a magnetic memory device includes a first magnetic layer having a variable magnetization direction, a second magnetic layer having a fixed magnetization direction, and a nonmagnetic layer between the first and second magnetic layers. The second magnetic layer includes a first main surface on the nonmagnetic layer side and a second main surface opposite to the first main surface, and includes a first region on the first main surface side and a second region on the second main surface side, and an intermediate region between the first and second regions and containing a predetermined nonmagnetic element. A concentration of the predetermined nonmagnetic element in the intermediate region is higher than that in the first and second regions. The second magnetic layer contains a magnetic element from the first to second main surfaces.