Air bearing magnetic head slider
US5889637A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/581
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An air bearing slider is designed with two rails and a central pad that provide positive air bearing regions to the air bearing surface of the slider, and three recess regions that are etched to a constant depth. The rails are identical and are symmetrically disposed relative to a central longitudinal axis. Each rail includes three sections: a pitch adjustment pad, a leg, and a roll adjustment pad. The pitch adjustment pad provides a balanced pressure distribution at the leading edge and optimizes the overall pitch angle of the slider. The leg extends from the pitch adjustment pad and generates counter-pressure that partially opposes the load applied by the suspension. The roll adjustment pad extends from the leg and generates an air bearing force that compensates for roll generated during slider operation. This air bearing slider design achieves constant flying height and less vertical and pitch stiffness, which will result in low contact force for pseudo-contact applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.