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. 03, 2016
Filed:
Jul. 25, 2014
Applicant:
Hgst Netherlands B.v., Amsterdam, NL;
Inventors:
Norihiro Okawa, Odawari, JP;
Kojiro Komagaki, Odawara, JP;
Assignee:
HGST Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G11B 5/11 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3929 (2013.01); G11B 5/3912 (2013.01); G11B 2005/3996 (2013.01); Y10S 977/935 (2013.01);
Abstract
Embodiments disclosed herein generally relate to a TMR sensor for reading a recording from a magnetic recording medium using TMR, and in particular, to a magnetic capping structure of the TMR sensor. The sensor comprises a free layer and a magnetic capping structure. The magnetic capping structure comprises a ferromagnetic capping layer and an absorption layer formed on the ferromagnetic capping layer. The absorption layer is adapted to absorb molecules from the ferromagnetic capping layer and prevent the ferromagnetic capping layer from diffusing into the free layer.