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.

Date of Patent:
Aug. 19, 2014

Filed:

Aug. 04, 2010
Applicants:

Abarra Einstein Noel, Hachioji, JP;

Masahiro Suenaga, Tama, JP;

Yoshinori Ota, Tama, JP;

Tetsuya Endo, Komae, JP;

Inventors:

Abarra Einstein Noel, Hachioji, JP;

Masahiro Suenaga, Tama, JP;

Yoshinori Ota, Tama, JP;

Tetsuya Endo, Komae, JP;

Assignee:

Canon Anelva Corporation, Kawasaki-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G11B 5/31 (2006.01); H01L 43/08 (2006.01); H01L 43/12 (2006.01); G01R 33/09 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3932 (2013.01); G11B 5/3163 (2013.01); H01L 43/08 (2013.01); H01L 43/12 (2013.01); G11B 5/398 (2013.01); G01R 33/098 (2013.01);
Abstract

The present invention is directed to align crystal c-axes in magnetic layers near two opposed junction wall faces of a magnetoresistive element so as to be almost perpendicular to the junction wall faces. A magnetic sensor stack body has, on a substrate, a magnetoresistive element whose electric resistance fluctuates when a bias magnetic field is applied and, on sides of opposed junction wall faces of the magnetoresistive element, field regions including magnetic layers for applying the bias magnetic field to the element. The magnetoresistive element has at least a ferromagnetic stack on a part of an antiferromagnetic layer, and width of an uppermost face of the ferromagnetic stack along a direction in which the junction wall faces are opposed to each other is smaller than width of an uppermost face of the antiferromagnetic layer in the same direction.


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