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:
May. 18, 2010
Filed:
Nov. 15, 2006
Yong HU, Fremont, CA (US);
Eric T. Sladek, Pleasanton, CA (US);
Biao Sun, Fremont, CA (US);
Forhad Hossain, Fremont, CA (US);
Ji-feng Ying, San Jose, CA (US);
Yong Hu, Fremont, CA (US);
Eric T. Sladek, Pleasanton, CA (US);
Biao Sun, Fremont, CA (US);
Forhad Hossain, Fremont, CA (US);
Ji-Feng Ying, San Jose, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A head for use in an information storage device includes a novel ABS, and a transducer with a heating element. The ABS includes a transducer pad that includes a surface in a first plane. The ABS also includes a pressure-relief trough that is recessed from the first plane by at least 0.1 microns and has an upstream breadth of no more than one fourth of the total length of the slider. The pressure-relief trough is disposed immediately upstream of the transducer pad and continuously spans the total width of the transducer pad. The ABS also includes a flow-diversion dam that has a dam surface that lies in the first plane. The dam surface continuously spans the total width of the transducer pad. The dam surface is disposed immediately upstream of the pressure-relief trough and generally downstream of a sub-ambient pressure cavity.