Aerodynamic magnetic head slider and magnetic disk drive

Details Aerodynamic magnetic head slider and magnetic disk drive Aerodynamic magnetic head slider and magnetic disk drive

2005-04-12

2009-06-02

Davis, David D (Department: 2627)

Dynamic magnetic information storage or retrieval

Fluid bearing head support

Disk record

Reexamination Certificate

active

07542238

ABSTRACT:
Embodiments of the invention prevent the reduction of the flying height of a magnetic head slider at a high altitude and thereby to improve the reliability of a magnetic disk drive. In one embodiment, a magnetic head slider has an air inlet end, an air outlet end, and an aerodynamic structure (air bearing surface). The aerodynamic structure includes: a plurality of inlet rails respectively having inlet rail surfaces; an outlet rail having an outlet rail surface flush with the inlet rail surfaces and holding a magnetic head; a bearing surface extending at a predetermined first depth δ1from a reference plane including the inlet and the outlet rail surfaces; a negative-pressure surface extending in a plane at a predetermined second depth δ2greater than the first depth δ1from the reference plane; and longitudinal lands of a predetermined height h formed on the inlet rails. The bearing surface and the inlet rail surfaces extend between the air inlet end and the lands.

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