In-situ monitoring of proximity and contact between a slider and a disc in a disc drive
US6967805B1 · kind B1 · utility
40Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2003 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Sep 28, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of detecting contact between a transducing head-carrying slider and a rotatable disc is performed by applying an electrostatic voltage between the slider and the disc and monitoring current flow across an interface between the slider and the disc. The monitored current flow across the interface between the slider and the disc is analyzed to detect contact between the slider and the disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.