Patent ID: 6694603
Filing Date: 2004-02-24
Classification: G11B,Y10T

Abstract:
A process of forming a microactuator for positioning a transducing head over a selected radial track of a rotatable disc in a disc drive system having a flexure to support a slider carrying the transducing head, the process comprising:etching a tub in a substrate thereby forming an empty cavity in the substrate; plating a bottom coil layer at least partially in the cavity; depositing a first insulating layer on the bottom coil layer; forming a ferromagnetic core layer on the first insulating layer; depositing a second insulating layer on and around the ferromagnetic coil layer; plating a top coil layer on the second insulating layer, the top coil layer contacting the bottom coil layer at a point spaced from the ferromagnetic core; and forming a rotor on a rotor substrate to confront the ferromagnetic core, the rotor being operatively attached to the slider and movable with respect to the ferromagnetic core.