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.

Date of Patent:
Jun. 07, 2016

Filed:

May. 27, 2014
Applicant:

Western Digital (Fremont), Llc, Fremont, CA (US);

Inventors:

Luc Ving Chung, Fremont, CA (US);

Steven C. Rudy, San Jose, CA (US);

Nurul Amin, Fremont, CA (US);

Assignee:

Western Digital (Fremont), Fremont, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/127 (2006.01); G11B 5/48 (2006.01); B24B 37/04 (2012.01); G11B 5/31 (2006.01); G11B 5/60 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/4866 (2013.01); B24B 37/048 (2013.01); G11B 5/3169 (2013.01); G11B 5/6082 (2013.01); G11B 5/6088 (2013.01); G11B 2005/0021 (2013.01);
Abstract

A slider bar apparatus, and a method for lapping a back side surface of the slider bar, is provided. The slider bar includes a head part and a pair of sliders separated by the head part. Each of the sliders has an air bearing surface (ABS) and a back side surface opposite the ABS. Each of the sliders has a reader element and a writer element of a magnetic head for use in a magnetic hard disk drive. An electrical lapping guide is mounted on the back side surface and has a pair of terminals and a conductive material extending between the terminals. The conductive material is arranged on the slider bar such that the resistance between the terminals increases during a lapping of the back side of the sliders.


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