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:
Jul. 30, 2013
Filed:
Dec. 09, 2009
Donald G. Allen, Morgan Hill, CA (US);
Liubo Hong, San Jose, CA (US);
Aron Pentek, San Jose, CA (US);
Thomas J. A. Roucoux, San Jose, CA (US);
Sue S. Zhang, Saratoga, CA (US);
Yi Zheng, San Ramon, CA (US);
Donald G. Allen, Morgan Hill, CA (US);
Liubo Hong, San Jose, CA (US);
Aron Pentek, San Jose, CA (US);
Thomas J. A. Roucoux, San Jose, CA (US);
Sue S. Zhang, Saratoga, CA (US);
Yi Zheng, San Ramon, CA (US);
HGST Netherlands B.V., Amsterdam, NL;
Abstract
Methods for fabrication of tapered magnetic poles with a non-magnetic front bump layer. A magnetic pole may have a plurality of tapered surfaces at or near an air bearing surface (ABS), wherein a thickness of the write pole increases in a direction away from the ABS. A non-magnetic front bump layer may be formed on one or more of the tapered surfaces of the magnetic pole at a distance from the ABS. The front bump layer may increase the separation distance between a shield layer and the magnetic pole near the tapered surface, thereby improving the performance of the write head.