Apparatus and method for piezoelectric layer as vertical...

Details Apparatus and method for piezoelectric layer as vertical... Apparatus and method for piezoelectric layer as vertical...

2008-05-06

2008-05-06

Tzeng, Fred F. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

11417697

ABSTRACT:
Slider used to access data on rotating disk in hard disk drive, including vertical micro-actuator forming piezoelectric layer perpendicular to air bearing surface and coupled to deformation region including read-write head. Slider further includes vertical control signal stimulating vertical micro-actuator to alter vertical position. The vertical control signal stimulates vertical micro-actuator to increase and decrease vertical position with potential differences of opposite sign. Flexure finger including vertical control signal path providing vertical control signal and micro-actuator assembly for coupling to slider. Head gimbal assembly including flexure finger coupled to the slider. A head stack assembly including at least one of the head gimbal assemblies coupled to a head stack. Hard disk drive including head stack assembly. The invention includes manufacturing the slider, the head gimbal assembly, the head stack assembly, and the hard disk drive, as well as these items as products of the invention's manufacturing processes.

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