System and method for monitoring flying height using textured disks
US6275029A · kind A · utility
14Cited by
14References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1998 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Feb 10, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A spacing between a transducer head and disk surface in a disk drive's head-disk interface is monitored. The transducer head includes a magneto resistive element. The surface of the disk includes a region containing at least one asperity extending from the surface to have a height. The transducer head is placed over the region containing the at least one asperity, and the disk is rotated. A determination is then made as to whether the transducer head contacts the at least one asperity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.