Fly-height management in a hard disk drive (HDD)
US8098450B2 · kind B2 · utility
36Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2009 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Dec 31, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6076
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hard disk drive (HDD) including a first resistive temperature detector (RTD) configured to detect a temperature generated by proximity of a slider and a media. The first RTD is proximate an air bearing surface (ABS) of the slider. The HDD also includes a second RTD configured to detect at least one temperature correlated to a fly-height of the slider. The second RTD is not required to be proximate the ABS of the slider. HDD also includes a read/write integrated circuit (IC) configured to determine the fly-height of the slider based on detection of temperatures by the first RTD and the second RTD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.