Air bearing slider with reduced stiction

Details Air bearing slider with reduced stiction Air bearing slider with reduced stiction

1999-10-22

2000-11-07

Cao, Allen T.

Dynamic magnetic information storage or retrieval

Fluid bearing head support

Disk record

G11B 1732

Patent

active

061445282

ABSTRACT:
The present invention is embodied in an air bearing slider. The slider contains a magnetic head for writing and reading data to and from the magnetic medium of a hard disk. The slider is attached to an actuator arm which reciprocates over the disk surface to position the slider over the surface of the disk. When placed in the airflow existing just above the surface of a rotating disk the slider flies above the disk. The slider which has a leading edge, a trailing edge and two sides defined between the leading and trailing edges comprises a pair of leading pads positioned near the leading edge, a channel defined between the leading pads, a side pad positioned adjacent to each of the sides respectively, a center pad positioned near the trailing edge and a cavity disposed between the pads. With the side pads being separate from the leading pads as well as the inclusion of the channel providing a reduction in stiction. Further, the present invention's configuration of elements provides a slider with a nearly constant flying height over the entire disk surface, even during changes in airflow velocity, skew angles and loading. Also, the slider possess high pitch and roll stiffness, which contributes to it ability to maintain a near constant flying height.

REFERENCES:
patent: 5796551 (1998-08-01), Samuelson
patent: 5940249 (1999-08-01), Hendriks

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