Self-cleaning proximity recording interface

Details Self-cleaning proximity recording interface Self-cleaning proximity recording interface

1996-09-18

1998-12-15

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360122, 360128, 360103, 360102, 360 7303, G11B 555

Patent

active

058503218

ABSTRACT:
The present invention is directed to a disk drive that employs a proximity recording interface in which a slider that carries a head is designed to remain in contact with the disk during data transfer operations to achieve a high data density. In particular, the present invention is directed to cleaning debris from a pad on the slider that carries the head. The debris, if allowed to accumulate, can reach a depth at which the head is spaced from the disk at a distance which adversely affects the transfer of data with the disk. In one embodiment, the spin motor of the disk drive is caused to rotate at a lower angular velocity than during normal data transfer operations while the actuator of the disk drive is used to radially displace the slider and associated head. For a constant angular velocity of the disk, the change in radial position causes different areas of the pad to be contacted and cleaned by the disk. Additionally, the disk is cleaned of debris that could also affect the ability to transfer data with the disk. Further, the lubricant on the disk surface that facilitates the proximity recording interface and may have migrated is redistributed.

REFERENCES:
patent: 4384311 (1983-05-01), McNeil
patent: 4490766 (1984-12-01), Hill et al.
patent: 4510541 (1985-04-01), Sasamoto
patent: 4594617 (1986-06-01), Tezuka
patent: 5535073 (1996-07-01), Brezoczky et al.
patent: 5612830 (1997-03-01), Gregory et al.
patent: 5696643 (1997-12-01), Tsuwako et al.

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