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:
Jun. 05, 2018
Filed:
Aug. 01, 2017
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Susumu Okamura, Fujisawa, JP;
Yo Sato, Odawara, JP;
Keiichi Nagasaka, Isehara, JP;
Masashige Sato, Atsugi, JP;
Assignee:
Western Digital Technologies, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/235 (2006.01); G11B 5/31 (2006.01); G11B 5/127 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3146 (2013.01); G11B 5/1278 (2013.01); G11B 5/235 (2013.01); G11B 5/314 (2013.01); G11B 2005/0024 (2013.01);
Abstract
A magnetic field-assisted magnetic recording (MAMR) head is provided, which includes a recording main pole and a texture control layer (TCL), a seed control layer, and a spin torque oscillator (STO) positioned over the main pole, in this order, in a stacking direction from a leading side to a trailing side of the recording head. The STO has a crystallographic preferred growth orientation and includes a spin polarized layer (SPL). The TCL may include a Cu layer.