Patent ID: 6683757
Filing Date: 2004-01-27
Classification: G11B

Abstract:
A microactuator for finely positioning a transducing head with respect to a track of a rotatable disc having a plurality of concentric tracks in a disc drive system, the disc drive system including a slider having a body carried by a flexure, the microactuator comprising:a stator portion extending from the body of the slider; a plurality of beams extending from the stator portion, the beams being flexible in a lateral direction; a rotor portion connected to the stator portion by the plurality of beams with a gap between the rotor portion and the stator portion, the rotor portion carrying the transducing head; a plurality of stator electrodes on the stator portion, the plurality of stator electrodes being alternately connected to a fixed high potential and a fixed low potential; a plurality of rotor electrodes on the rotor portion confronting the stator electrodes across the gap; and control circuitry for applying selected voltages to the rotor electrodes in a predetermined pattern to create a force in the lateral direction for moving the rotor portion with respect to the stator portion.