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. 11, 2003
Filed:
Sep. 09, 1999
Applicant:
Inventors:
Junichi Sugawara, Miyagi, JP;
Eiji Nakashio, Miyagi, JP;
Seiji Kumagai, Miyagi, JP;
Yoshito Ikeda, Tochigi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/139 ;
U.S. Cl.
CPC ...
G11B 5/139 ;
Abstract
A magnetic tunneling element in which the tunnel current flows reliably to exhibit a stable magnetic tunneling effect. The magnetic tunneling element includes a first magnetic layer, a tunnel barrier layer formed on the first magnetic layer, and a second magnetic layer formed on the tunnel barrier layer. The tunnel barrier layer is a metal film oxidized by inductively coupled oxygen plasma and a second magnetic layer is formed on the tunnel barrier layer.