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:
Nov. 29, 2005
Filed:
Mar. 11, 2005
Lin Mei, San Jose, CA (US);
Lin Mei, San Jose, CA (US);
Western Digital (Fremont), Inc., Fremont, CA (US);
Abstract
A method characterizes a generally-trapezoidally-shaped portion of a writing pole of a perpendicular magnetic write head in proximity to a magnetic medium. The method includes providing measured track width data corresponding to magnetic track widths of a plurality of tracks written by the writing pole on a rotating magnetic medium underlying the writing pole. The magnetic track widths vary as a function of skew angle of the writing pole during writing. The method further includes determining a magnetic width of the wider of a leading edge and a trailing edge of the writing pole from a first portion of the measured track width data corresponding to a first range of skew angles. The method further includes determining at least one magnetic taper angle of the writing pole from the measured track width data.