发明名称 |
Method for characterizing a perpendicular recording head writing pole |
摘要 |
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.
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申请公布号 |
US6969989(B1) |
申请公布日期 |
2005.11.29 |
申请号 |
US20050078266 |
申请日期 |
2005.03.11 |
申请人 |
WESTERN DIGITAL (FREMONT), INC. |
发明人 |
MEI LIN |
分类号 |
G11B5/127;G11B5/187;G11B5/455;(IPC1-7):G11B5/187 |
主分类号 |
G11B5/127 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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