Method for controlling flying height of a magnetic head
US6529342B1 · kind B1 · utility
35Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1999 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Feb 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6017
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for controlling flying height at the interface of a magnetic head and a magnetic storage medium is described. The flying height is controlled by applying a voltage between head and medium. This controls the vertical movement of the head, and thus, may increase or decrease the flying height. For example, the flying height may be changed with surface texture to achieve high writing/reading density, where the flatness of the medium is high. Also, the contact between the head and medium may be limited where the texture includes projections such as laser bumps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.