In an electrostatic actuator used to control fly height between a magnetic disc and a read/write head of a disc drive, a multi-layer electrode device is used. The multi-layer electrode device includes alternating insulating layers and conductive electrode layers. By controlling the material properties of each layer of the electrode device, problems associated with leakage current, field emission discharge, tunneling current, and slow actuator response time can be controlled.

 
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< Updateable centralized data position information storage system

< MR film with upper and lower magnetic layers with resistivity greater than that of MR film magnetic layers

> Yoke type or flux guide type magnetoresistive head in which the yoke or flux guide is provided to the magnetic resistive element via an interposed soft magnetic layer

> Method and control scheme for compensating the coarse actuators undesired transients in dual stage control systems

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