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:
Apr. 04, 2006
Filed:
Feb. 08, 2000
Kenneth E. Knapp, Livermore, CA (US);
Ronald A. Barr, Mountain View, CA (US);
Zhupei Shi, San Jose, CA (US);
Billy W. Crue, Jr., Pittsburgh, PA (US);
Kenneth E. Knapp, Livermore, CA (US);
Ronald A. Barr, Mountain View, CA (US);
Zhupei Shi, San Jose, CA (US);
Billy W. Crue, Jr., Pittsburgh, PA (US);
Western Digital (Fremont), Inc., Fremont, CA (US);
Abstract
A trailing pole-tip for an electromagnetic transducer is formed as a layer oriented substantially perpendicular to other layers of the transducer, allowing the pole-tip to be made much thinner than conventional pole-tips. The novel pole-tip is formed on an edge or sidewall of a base layer instead of being formed on top of an existing layer. Potential errors in pole-tip thickness are much less than standard error tolerances for conventional pole-tip thickness. Having a greatly reduced pole-tip width significantly reduces the track width so that many more tracks can fit on a media surface, providing a large increase in areal density.