Flexible, suspension, and head gimbal assembly with piezoelectric layer units addressable by a voltage
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United States of America Patent
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Dec 8, 2009
Grant Date -
Mar 3, 2005
app pub date -
Aug 26, 2004
filing date -
Sep 2, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A flexure is provided with a main body on which a wire for energizing a head slider is disposed. Head slider is mounted at the front end of the flexure. Two piezoelectric layer units, each including layered piezoelectric elements, are disposed so that two of the units sandwich a line that extends from head slider to a base portion of an arm member. A voltage can be applied individually to each of the piezoelectric elements. The shape of the piezoelectric layer units are changed by adjusting the voltage applied to each of the piezoelectric elements, thereby moving head slider freely.
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