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:
Sep. 13, 2011
Filed:
Nov. 07, 2007
Lei Larry Zhang, San Jose, CA (US);
Yong Shen, Saratoga, CA (US);
Honglin Zhu, Fremont, CA (US);
Yizhong Wang, Woodbury, MN (US);
Lei Larry Zhang, San Jose, CA (US);
Yong Shen, Saratoga, CA (US);
Honglin Zhu, Fremont, CA (US);
Yizhong Wang, Woodbury, MN (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A method for providing a perpendicular magnetic recording head includes providing a metal underlayer and forming a trench in the metal underlayer. The trench has a bottom and a top wider than the bottom. The method also includes providing a PMR pole. At least a portion of the PMR pole resides in the trench. The method also includes providing a write gap on the PMR pole and providing a top shield on at least the write gap.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile