Head gimbal assembly with precise positioning actuator for...

Details Head gimbal assembly with precise positioning actuator for... Head gimbal assembly with precise positioning actuator for...

2005-05-10

2005-05-10

Chen, Tianjie (Department: 2652)

Dynamic magnetic information storage or retrieval

Head mounting

For adjusting head position

Reexamination Certificate

active

06891701

ABSTRACT:
An HGA includes a head slider with at least one head element, a support and a precise positioning actuator fixed with the head slider and with the support for precisely positioning the at least one head element. The actuator includes a pair of movable arms capable of displacing in response to a drive signal applied to the actuator, for catching the head slider in a space between the movable arms. Each of the movable arms includes an arm member being made of an elastic sintered ceramic and having substantially the same cross sectional shape from a root thereof to a top end thereof, and a piezoelectric element formed on a side surface of the arm member. A spacing between base ends of the arm members is larger than a spacing between top ends of the arm members.

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patent: 08-180623 (1996-07-01), None
patent: WO9819304 (1998-05-01), None

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