Magnetic head slider and magnetic disk apparatus having the magn

Details Magnetic head slider and magnetic disk apparatus having the magn Magnetic head slider and magnetic disk apparatus having the magn

1996-12-16

2000-03-21

Cao, Allen T.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 560

Patent

active

060409584

ABSTRACT:
A magnetic head slider has a plurality of rail planes to generate a floating force by using an air flow passing through a region between a group of the rail planes and a magnetic disk rotated at a constant rotating speed, and the slider floats up into the air according to the floating force. Also, the slider has a first pad arranged near an air inflow end of one rail plane and a second pad arranged near an air outflow end of the same or another rail plane, and a height of the first pad and a height of the second pad respectively range from 20 to 50 nm. Therefore, a coefficient of a friction between the pads and the magnetic disk can be reduced, and the wear of the pads can be prevented. Also, the contact of an electro-magnetic transducing device attached to the air outflow end of the rail plane with the magnetic disk can be prevented.

REFERENCES:
patent: 4757402 (1988-07-01), Mo
patent: 5841608 (1998-11-01), Kasamatsu et al.

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