Patent · US Active

Disk drive and head slider

US8102626B2 · kind B2 · utility

1Cited by

1References

19Claims

0Family size

Assignee

Hitachi Global Storage Technologies Netherlands B.V. · NL

Inventors

Jianhua Li · Beijing, CN
Junguo Xu · Chiyoda, JP

Key dates

Filing date	Oct 22, 2008
Grant date	Jan 24, 2012
Priority date	—
Expiry date	Jun 22, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/60
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Embodiments of the present invention provide a head slider that suppresses accumulation of lubricant droplets on an air-bearing surface due to a backflow, and thus improves reliability of a disk drive. According to one embodiment, a lubricant droplet being adhered to a head slider and accumulated thereon, which are caused by extremely low flying height of the head slider, are prevented from falling onto a recording medium. When velocity of a recording medium at a position where the head slider faces the recording medium is assumed to be v, step depth δ4 at an outflow side of an outflow side rail satisfies, δ4≦0.1125*log10(v)+0.019.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.