Magnetic head sub-ambient air pressure slider for a disk drive d

Details Magnetic head sub-ambient air pressure slider for a disk drive d Magnetic head sub-ambient air pressure slider for a disk drive d

1996-09-04

1998-04-14

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 560

Patent

active

057399816

ABSTRACT:
A sub-ambient pressure, air bearing slider is disclosed for positioning a magnetic read/write head proximately to a rotating disk. The slider includes first and second rails extending along the side of the slider facing the rotating disk from a leading edge of the slider to a trailing edge of the slider. Each rail has a thigh region extending at an angle from the leading edge to a lateral side of the slider, a foot region extending at an angle from a lateral side of the slider toward the trailing edge of the slider, and a knee region at a lateral side of the slider coupled between the foot and thigh regions. Recesses are provided to shape the first and second rails. A central recess provides a volume for sub-ambient pressure. One or more tails can be placed within the central region to prevent the shifting of pressure completely to one side of the slider. The design of the first and second rails leads to a more uniform flying height for the slider and magnetic head over all tracks of the disk.

REFERENCES:
patent: 5218494 (1993-06-01), Chapin
"Analysis and Performance Characteristics of the Seagate Advanced Air Bearing Slider", by Cal Hardie, Aric Menon, Peter Crane and Dale Egbert, 1994, IEEE.
Hardie, Cal et al., "Analysis and Performance Characteristics of the Seagate Advanced Air Bearing Slider," IEEE Transactions on Magnetics, vol. 30, No. 2, 1 Mar. 1994, pp. 424-432.

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