Method for assembling an actuator device for a hard disc device, comprising a read/write transducer, a microactuator and a suspension and the actuator device thus obtained

摘要

The microactuator (9) is attached to a first face (43) of a coupling (8) formed on a suspension (5), so that the R/W transducer (6) projects from the opposite face (44). A hole (41; 56) in the coupling (8) permits passage of an adhesive mass (42) interposed between the rotor (11) of the microactuator (9) and the R/W transducer (6). A strip (40) of adhesive material extends between the die (25) accommodating the microactuator (9) and the coupling (8), and externally surrounds the microactuator (9). The coupling (8) acts as a protective shield for the microactuator (9), both mechanically and electrically; it covers the microactuator (9) at the front, and prevents foreign particles from blocking the microactuator (9); in addition it electrically insulates the R/W transducer (6), sensitive to magnetic fields, from regions of the microactuator biased to a high voltage. With the gimbal (8), the strip (40) forms a sealing structure, which in practice surrounds the microactuator (9) on all sides.