Pseudo-contact slider with recessed magneto-resistive transducer

Details Pseudo-contact slider with recessed magneto-resistive transducer Pseudo-contact slider with recessed magneto-resistive transducer

1998-05-21

1999-11-30

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 1700, G11B 2120

Patent

active

059953241

ABSTRACT:
A method of design of a magnetic recording slider and sensor geometry is disclosed which allows a magneto-resistive recording element to achieve a significantly reduced physical and magnetic spacing with a rigid magnetic recording disk in a disk drive, without resulting in thermal transients caused by sensor/disk contacts. The method utilizes pseudo-contact slider technology with an intentionally recessed MR sensor pole tip and alumina region. The reduced spacing achieved by pseudo-contact recording is significant compared to the spacing loss incurred by the proposed precision of the MR recording element, resulting in a net reduction in head medium magnetic spacing.

REFERENCES:
patent: 5535073 (1996-07-01), Brezoczky et al.
patent: 5650892 (1997-07-01), Dorius et al.
patent: 5673156 (1997-09-01), Chen et al.
patent: 5768055 (1998-06-01), Tian et al.
patent: 5872685 (1999-02-01), Park et al.

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