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:
Jan. 31, 2006
Filed:
Aug. 09, 2002
Applicants:
Takeo Kagami, Tokyo, JP;
Kazuki Sato, Tokyo, JP;
Shunji Saruki, Tokyo, JP;
Takumi Uesugi, Tokyo, JP;
Inventors:
Takeo Kagami, Tokyo, JP;
Kazuki Sato, Tokyo, JP;
Shunji Saruki, Tokyo, JP;
Takumi Uesugi, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/127 (2006.01);
U.S. Cl.
CPC ...
Abstract
An upper metal layer made of a non-magnetic metal is formed as a protection layer on the top surface of a free layer positioned topmost of a magneto-resistive layer constituting a TMR device. An upper electrode, serving additionally as an upper magnetic shield layer, is electrically connected to the free layer through an underlying layer of the upper electrode, and the upper metal layer. The thickness of the upper metal layer is chosen to be 10 nm or more.