Magnetic disk test apparatus having heads moveable along substan

Details Magnetic disk test apparatus having heads moveable along substan Magnetic disk test apparatus having heads moveable along substan

1996-12-11

1998-10-20

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetic information storage element testing

29 9001, G01R 3312, B24B 3906, B24B 4900

Patent

active

058251804

ABSTRACT:
An apparatus for testing and processing a magnetic disk. The apparatus comprises a spindle for rotatably supporting the disk about a spindle axis; a first read and/or write head; a second read and/or write head; a gliding head; and a burnishing head, where the heads are selectively positionable along parallel axes overlying the magnetic disk; and a controller for selectively driving said heads across the magnetic disk and for selectively rotating the spindle in first and second directions.

REFERENCES:
patent: 4902971 (1990-02-01), Guzik et al.
patent: 5423111 (1995-06-01), Mori

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