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:
Sep. 12, 2023
Filed:
Jul. 09, 2021
Kioxia Corporation, Tokyo, JP;
Masayoshi Iwayama, Seoul, KR;
Tatsuya Kishi, Seongnam-si, KR;
Masahiko Nakayama, Kawasaki Kanagawa, JP;
Toshihiko Nagase, Tokyo, JP;
Daisuke Watanabe, Yokkaichi Mie, JP;
Tadashi Kai, Tokyo, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A magnetic memory device including a first memory cell which includes a first stacked structure including a magnetic layer and a second memory cell which is provided on the first memory cell and includes a second stacked structure including a magnetic layer. Each of the first stacked structure and the second stacked structure includes a first magnetic layer having a variable magnetization direction, a second magnetic layer having a fixed magnetization direction, and a nonmagnetic layer provided between the first magnetic layer and the second magnetic layer. A concentration of iron (Fe) contained in the first magnetic layer included in the first stacked structure and a concentration of iron (Fe) contained in the first magnetic layer included in the second stacked structure are different from each other.