Method and apparatus for dynamically establishing roll static attitude in hard disk drive
US7009801B2 · kind B2 · utility
4Cited by
13References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 25, 2003 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Dec 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hard disk drive establishes a roll static attitude (RSA) of a slider during operation to be zero during normal operation and to be non-zero during load/unload from a ramp. Specifically, a RSA bias mechanism such as a piezoelectric layer can be coupled to the slider suspension to bend the flexure of the suspension during load/unload so that the slider inner edge is higher than the outer edge. Consequently, any slider-disk contact that occurs during load/unload will be at the outer edge of the slider, where data is not expected to be on the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.