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. 12, 2015
Filed:
Mar. 21, 2013
Applicant:
Western Digital (Fremont), Llc, Femont, CA (US);
Inventors:
Guanxiong Li, Fremont, CA (US);
Xiaozhong Dang, Fremont, CA (US);
Mahendra Pakala, Fremont, CA (US);
Yong Shen, Saratoga, CA (US);
Assignee:
Western Digital (Fremont), LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G01R 33/09 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3909 (2013.01); G11B 5/3906 (2013.01); G11B 5/398 (2013.01); G01R 33/093 (2013.01);
Abstract
A magnetic head including a magnetoresistive junction and an oxide layer. The magnetoresistive junction includes a pinned layer, a free layer, and a barrier layer residing between the pinned and free layer. The magnetoresistive junction includes at least one side having a smooth profile. The oxide layer is on the at least one side. The oxide layer is less than one nanometer thick at the free layer.