Data storage device detecting fly height instability of head during load operation based on microactuator response
US9076473B1 · kind B1 · utility
2Cited by
348References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2014 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Aug 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6076
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device is disclosed comprising a first disk surface, a first head, and a first microactuator configured to actuate the first head over the first disk surface. The first microactuator is configured into a first sensor, and a first load operation is executed to load the first head over the first disk surface. A fly height instability of the first head is detected during the first load operation based on a first sensor signal generated by the first microactuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.