公开(公告)号：JP2000067539A

公开(公告)日：2000-03-03

申请号：JP21666599

申请日：1999-07-30

Applicant: ST MICROELECTRONICS SRL

Inventor： VIGNA BENEDETTO ,  ZERBINI SARAH ,  SASSOLINI SIMONE ,  MENESCARDI CARLO

IPC: G11B5/596 ,  G11B21/02 ,  G11B21/10 ,  H02N1/00

Abstract: PROBLEM TO BE SOLVED: To prevent a microactuator from external dust by providing an actuator element being a different body and a transmission structure to be arranged between the actuator element and a motor element and allowing the transmission structure to transmit the motion of the motor element to a motion corresponding to the actuator element to prevent damage and static electric interference. SOLUTION: A microactuator 30 is integrated with the die 31 firmly fixed to gymbals. The microactuator 30 is provided with a motor element 32, an actuator element 34 which is separated from the motor element 32 and also to which R/W transducers 6 are firmly fixed and a transmission structure 36 which is arranged between the motor element 32 and the actuator element 34. The transmission structure 36 transmits the rotational motion of the motor element 32 to the actuator element 34 and the R/W transducers 6 fixed to the element 34. The motor element 32 is provided with the stator 38 of an inner side which is integrated with the die 31 and the rotor 40 of an outer side. The rotor 40 is connected to the actuator element 34 with the transmission structure 36.

公开(公告)号：DE69830789D1

公开(公告)日：2005-08-11

申请号：DE69830789

申请日：1998-07-30

Applicant: ST MICROELECTRONICS SRL

Inventor： VIGNA BENEDETTO ,  ZERBINI SARAH ,  SASSOLINI SIMONE ,  MENESCARDI CARLO

IPC: G11B5/596 ,  G11B21/02 ,  G11B21/10 ,  H02N1/00

Abstract: The microactuator (30) comprises a motor element (32) including a stator (38) and a rotor (40) capacitively coupled to the stator (38); an actuator element (34) having a circular structure; and a transmission structure (36) interposed between the motor element (32) and the actuator element (34) to transmit a rotary movement of the motor element (32) into a corresponding rotary movement of the actuator element (34). In particular, the transmission structure (36) comprises a pair of transmission arms (80, 81) identical to each other, arranged symmetrically with respect to a symmetry axis (A) of the microactuator (30). The transmission arms (80, 81) extend between two approximately diametrically opposed regions of the rotor (40) to diametrically opposed regions (84) of the actuator element (34).