Magnetic head slider having optimized ratio of negative pressure recess to front step bearing
US6628480B2 · kind B2 · utility
13Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1999 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Aug 3, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head slider for sliding on a magnetic disk includes a leading edge, a trailing edge, an air bearing surface having a front step bearing of submicron depth made from the leading edge, and a rail surface made from the front step bearing. A negative pressure recess which is more profound than the front step bearing is made from the rail surface, and a side step bearing having a depth identical with the front step bearing is made from the rail surface. The ratio of the depth R of the recess to the depth &dgr;S of the front step bearing is R/&dgr;s>5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.