Magnetic disc apparatus production method

Metal working – Method of mechanical manufacture – Electrical device making

Reexamination Certificate

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Details

C029S603070, C029S603130, C029S603150, C029S603160, C029S603180, C029S025350, C029S417000, C216S022000, C216S039000, C216S041000, C216S048000, C216S065000, C360S235100, C360S235300, C360S025000, C360S235800, C360S236100, C360S026000, C451S004000, C451S051000

Reexamination Certificate

active

07082671

ABSTRACT:
A recording/reproduction element is mounted on a magnetic head slider via a piezoelectric element so that a displacement of the piezoelectric element performs fine control of the position of the recording/reproduction, thus enabling fine spacing and high track positioning accuracy. This improves linear recording density and track density. A pair of electrodes are formed on both sides of a piezoelectric element to constitute a piezoelectric actuator. One electrode is arranged opposite the rear surface (air flow out end) of a magnetic head slider11. A recording/reproduction element is arranged on and electrically insulated from the other electrode. The piezoelectric element includes a piezoelectric element displaced in a spacing direction, enabling fine spacing control, a piezoelectric element displaced in the track direction, enabling fine track position control, and a piezoelectric element displaced in a magnetic disc rotation direction, enabling reduction of jitter of a reproduction signal.

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