Patent ID: 6122149
Filing Date: 2000-09-19
Classification: G11B,Y10T

Abstract:
A microactuator for radially positioning a transducing head over a selected radial track a rotatable disc in a disc drive system having a flexure to support a slider carrying the transducing head, the microactuator comprising:a rotor operatively attached to the slider;a stator operatively attached to the flexure, the stator comprising a first pole piece having first and second ends, a second pole piece substantially parallel to and spaced from the first pole piece, the second pole piece having first and second ends, and a magnetic via connecting the first pole piece and the second pole piece, wherein the first and second pole pieces are shaped so that a first gap between the first end of the first pole piece and the first end of the second pole piece is smaller than a second gap between the second end of the first pole piece and the second end of the second pole piece; andmeans for inducing magnetic flux between the first and second pole pieces of the stator and the rotor to move the rotor with respect to the stator to alter a radial position of the transducing head with respect to the selected radial track of the rotatable disc.