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. 10, 2002
Filed:
Jun. 07, 2000
Sony Corporation, Tokyo, JP;
Abstract
A magnetoresistance film has an ordered antiferromagnetic layer ( ), a fixed magnetic structure portion ( ) joined thereto, a non-magnetic conductive layer ( ), and a free magnetic layer portion ( ) having at least one magnetic layer, the fixed magnetic structure portion ( ) having provided therein an amorphous magnetic layer ( ). The magnetoresistance film is thereby constructed such that the amorphous magnetic layer ( ) and the non-magnetic conductive layer ( ) are joined to each other with a crystalline ferromagnetic intermediate layer ( ) existing in between. Thereby, the fixed magnetic structure portion of a spin valve construction has therein the amorphous magnetic layer to thereby achieve the enhancement of the magneto-resistance change rate and the improvement of the heat resistance of the resulting magnetoresistance film.