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:
May. 27, 2008
Filed:
Dec. 16, 2003
Yoshiyuki Fukumoto, Tokyo, JP;
Ken-ichi Shimura, Tokyo, JP;
Atsushi Kamijo, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A magneto-resistance device is composed of an anti-ferromagnetic layer (), a pinned ferromagnetic layer (), a tunnel insulating layer () and a free ferromagnetic layer (). The pinned ferromagnetic layer () is connected to the anti-ferromagnetic layer () and has a fixed spontaneous magnetization. The tunnel insulating layer () is connected to the pinned ferromagnetic layer () and is non-magnetic. The free ferromagnetic layer () is connected to the tunnel insulating layer () and has a reversible free spontaneous magnetization. The pinned ferromagnetic layer () has a first composite magnetic layer () to prevent at lest one component of the anti-ferromagnetic layer () from diffusing into tunnel insulating layer ().