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. 09, 2014
Filed:
Nov. 23, 2011
Eiji Kariyada, Kanagawa, JP;
Katsumi Suemitsu, Kanagawa, JP;
Hironobu Tanigawa, Kanagawa, JP;
Kaoru Mori, Kanagawa, JP;
Tetsuhiro Suzuki, Kanagawa, JP;
Kiyokazu Nagahara, Kanagawa, JP;
Yasuaki Ozaki, Kanagawa, JP;
Norikazu Ohshima, Kanagawa, JP;
Eiji Kariyada, Kanagawa, JP;
Katsumi Suemitsu, Kanagawa, JP;
Hironobu Tanigawa, Kanagawa, JP;
Kaoru Mori, Kanagawa, JP;
Tetsuhiro Suzuki, Kanagawa, JP;
Kiyokazu Nagahara, Kanagawa, JP;
Yasuaki Ozaki, Kanagawa, JP;
Norikazu Ohshima, Kanagawa, JP;
Renesas Electronics Corporation, Kawasaki-Shi, Kanagawa, JP;
Abstract
A magnetic memory includes: a magnetization fixed layer having perpendicular magnetic anisotropy, a magnetization direction of the magnetization fixed layer being fixed; an interlayer dielectric; an underlayer formed on upper faces of the magnetization fixed layer and the interlayer dielectric; and a data recording layer formed on an upper face of the underlayer and having perpendicular magnetic anisotropy. The underlayer includes: a first magnetic underlayer; and a non-magnetic underlayer formed on the first magnetic underlayer. The first magnetic underlayer is formed with such a thickness that the first magnetic underlayer does not exhibit in-plane magnetic anisotropy in a portion of the first magnetic underlayer formed on the interlayer dielectric.