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. 17, 2022
Filed:
Jun. 23, 2020
Applicant:
Alps Alpine Co., Ltd., Tokyo, JP;
Inventor:
Masamichi Saito, Miyagi-ken, JP;
Assignee:
ALPS ALPINE CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/09 (2006.01); G01R 33/00 (2006.01); H01L 43/08 (2006.01); H01L 43/10 (2006.01);
U.S. Cl.
CPC ...
G01R 33/09 (2013.01); G01R 33/0017 (2013.01); H01L 43/08 (2013.01); H01L 43/10 (2013.01);
Abstract
A magnetic-field-applying bias film exhibiting resistance to a high magnetic field has an exchange-coupled film including a permanent magnet layer and an antiferromagnetic layer stacked on the permanent magnet layer. The antiferromagnetic layer includes an X(Cr—Mn) layer containing Cr, Mn, and one or two or more elements selected from the group consisting of platinum-group elements and Ni. The X(Cr—Mn) layer has a first region relatively near to the permanent magnet layer and a second region relatively distant from the permanent magnet layer. Mn content in the first region is higher than Mn content in the second region.