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:
Jan. 05, 2016
Filed:
Jun. 24, 2014
Applicant:
Western Digital (Fremont), Llc, Fremont, CA (US);
Inventors:
Rongfu Xiao, Dublin, CA (US);
Daniele Mauri, San Jose, CA (US);
Ming Mao, Dublin, CA (US);
Haiwen Xi, San Jose, CA (US);
Assignee:
Western Digital (Fremont), LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G11B 5/11 (2006.01);
U.S. Cl.
CPC ...
G11B 5/11 (2013.01); G11B 5/112 (2013.01);
Abstract
A magnetic shield for a magnetic recording head includes a plurality of ferromagnetic layers, a spacer layer, and a buffer layer, wherein the buffer layer includes Co, Fe, B, or a combination thereof and effectively reduces irregular grain growth within the ferromagnetic layers, the spacer layer includes Ru, and the ferromagnetic layers magnetically couple through each of the buffer layer and the spacer layer.