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US 6,760,194 B2Granted
Head gimbal assembly with piezoelectric microactuator
AssigneeSAE Magentics (H.K.) Ltd.
InventorsMasashi Shiraishi, Tamon Kasajima, Kai Wu, Zhihong Wang, Weiguang Zhu, Xi Yao
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Abstract
A piezoelectric device comprises an integral body of piezoelectric material having a length and width greater than its thickness; wherein the device further includes, in contact with the body, respective pairs of electrodes, wherein the electrodes of each pair are opposed in the thickness direction, wherein the body deflects along said transverse direction when a voltage is applied to the electrode pair. The present invention further provisdes a disk drive suspension and a head gimbal assembly.
Claims6
A disk drive suspension comprising:
- a load beam formed as a one piece, unitary member from a single sheet of resilient metal including:
- a mounting region at a proximal end of the load beam;
- a rigid region at a distal end of the load beam;
- a spring region between the mounting region and the rigid region;
- a flexure together with a trace mounted at the distal end of said rigid region of the load beam and configured for supporting and electrically connecting a read/write head;
- and
- a base plate for mounting said load beam:
- wherein
- said load beam is divided into a proximal stationary section and a distal moving section with said flexure and read/write head;
- a slit and slot separating the distal moving section from the proximal stationary section;
- said moving section can pivot with respect to a hinge at the longitudinally symmetric line of the load beam;
- and
- said hinge is a joint between said proximal stationary section and said distal moving section.
10 more elements
Dependencies are inferred from the claim text.