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:
Feb. 03, 2009
Filed:
May. 25, 2005
Hirotaka Oshima, Kawasaki, JP;
Reiko Kondo, Kawasaki, JP;
Arata Jogo, Kawasaki, JP;
Yutaka Shimizu, Kawasaki, JP;
Atsushi Tanaka, Kawasaki, JP;
Hirotaka Oshima, Kawasaki, JP;
Reiko Kondo, Kawasaki, JP;
Arata Jogo, Kawasaki, JP;
Yutaka Shimizu, Kawasaki, JP;
Atsushi Tanaka, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A magneto-resistive element employs a CPP structure and includes an antiferromagnetic layer, a pinned magnetization layer, a nonmagnetic intermediate layer and a free magnetization layer that are successively stacked. The pinned magnetization layer includes a first pinned magnetization layer, a nonmagnetic coupling layer and a second pinned magnetization layer that are successively stacked on the antiferromagnetic layer, and the first and second pinned magnetization layers are antiferromagnetically exchange-coupled. One of the first and second pinned magnetization layer is formed by a ferromagnetic layer made of a ferromagnetic material at least including one element or alloy selected from a group consisting of Co, Fe, Ni and alloys thereof, and the other is formed by a resistance control layer made of a conductive ferromagnetic oxide.