Method and system for reducing thermal pole tip protrusion
US6909578B1 · kind B1 · utility
156Cited by
0References
32Claims
0Family size
Assignee
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Key dates
| Filing date | May 30, 2002 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | Mar 4, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for providing head is disclosed. The method and system include providing a first pole, a second pole, a write gap, at least one coil and an Fe3Pt alloy. The write gap separates the first pole from the second pole. The first and second poles are for writing to a medium. The coil(s) have a plurality of turns and reside between the roles. The Fe3Pt alloy is in proximity to the first pole and the second pole. The Fe3Pt alloy is configured to counteract expansion of the first pole and the second pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.