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:
Apr. 28, 2020
Filed:
Feb. 20, 2019
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Thomas Young Chang, Menlo Park, CA (US);
Thomas P. Nolan, Fremont, CA (US);
Assignee:
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/66 (2006.01); G11B 5/667 (2006.01); G11B 5/31 (2006.01); G11B 5/706 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/667 (2013.01); G11B 5/3133 (2013.01); G11B 5/66 (2013.01); G11B 5/70615 (2013.01); G11B 5/70621 (2013.01); G11B 2005/0021 (2013.01);
Abstract
An apparatus includes a first magnetic layer. A second magnetic layer overlies the first magnetic layer and is magnetically softer than the first magnetic layer. An exchange control layer is between the first magnetic layer and the second magnetic layer. The includes a higher Ms (saturation magnetization) than the first magnetic layer at room temperature.