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:
Feb. 16, 2016
Filed:
Jun. 27, 2013
Western Digital (Fremont), Llc, Fremont, CA (US);
Jinqiu Zhang, Fremont, CA (US);
Hongmei Han, Fremont, CA (US);
Feng Liu, San Ramon, CA (US);
Ming Jiang, San Jose, CA (US);
Xiaotian Zhou, Fremont, CA (US);
Zeyu Ma, Dublin, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A process for manufacturing a writer main pole for a perpendicular magnetic recording system is provided. The writer pole may have a constant sidewall angle from the ABS to yoke and may be formed out of an insulating material and a magnetic material. The sidewall angle of the yoke region may be adjusted during manufacture. The ABS region may correspond to the magnetic material and the yoke region may correspond to the insulating material. The insulating material may comprise Alumina. The magnetic material may comprise a NiFe alloy.