logo

For the Inventor, By the Inventor

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.:

US 11488758 B1

PDFFull Text
Date of Patent:
Nov. 01, 2022

Filed:

Mar. 12, 2020

Exchange coupling film, and magnetoresistive sensor and magnetic detector including the same

Applicant:

Alps Alpine Co., Ltd., Tokyo, JP;

Inventors:

Masamichi Saito, Miyagi-ken, JP;

Fumihito Koike, Miyagi-ken, JP;

Hiroaki Endo, Miyagi-ken, JP;

Assignee:

ALPS ALPINE CO., LTD., Tokyo, JP;

Attorney:

Crowell & Moring LLP

Primary Examiner:

Jermele M Hollington

Assistant Examiner:

Temilade S Rhodes-Vivour

Int. Cl.
CPC ...
H01F 10/32 (2006.01); G01R 33/09 (2006.01); H01L 43/08 (2006.01); H01L 43/10 (2006.01);
U.S. Cl.
CPC ...
H01F 10/329 (2013.01); G01R 33/093 (2013.01); H01F 10/3272 (2013.01); H01L 43/08 (2013.01); H01L 43/10 (2013.01);
Abstract

In an exchange coupling film that has a large magnetic field (Hex) in which the direction of magnetization of a fixed magnetic layer is reversed, high stability under high temperature conditions, and excellent strong-magnetic field resistance, an antiferromagnetic layer, a fixed magnetic layer, and a free magnetic layer are stacked, the antiferromagnetic layer is composed of a PtCr layer and an XMn layer (where X is Pt or Ir), the XMn layer is in contact with the fixed magnetic layer, and the fixed magnetic layer is made of iron, cobalt, an iron-cobalt alloy, or an iron-nickel alloy.

Find Patent Forward Citations

Quick Actions:

Saito, Masamichi. (2022). Exchange coupling film, and magnetoresistive sensor and magnetic detector including the same (U.S. Patent No. 11488758). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11488758

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…