Control of data sensor fly height
US6735036B1 · kind B1 · utility
14Cited by
25References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2000 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Mar 22, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device includes a head suspension assembly having an attached airfoil. The airfoil is coupled to an active (i.e., movable) element that responds to signals from height control circuitry. A method of controlling a height of an air bearing surface includes positioning a suspension assembly having an airfoil and an air bearing disk head over a surface of a rotating data storage disk. A position (e.g., an angle) of the airfoil can then be dynamically altered to change a distance of the disk head perpendicular to the surface of the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.