| 摘要 |
In conjunction with a magnetic disk drive unit comprising a voice coil motor ( 14 ), an arm ( 12 ) extending from the motor, a magnetic head actuator ( 2 ) mounted at a distal end of the arm, a suspension ( 16 ) coupled to the actuator, and a magnetic head slider mounted on the suspension at its distal end, the magnetic head actuator ( 2 ) comprises a stator section ( 30 ) secured to the arm distal end, an attachment section ( 18 ) secured to the arm distal end together with the stator section, micro-beams ( 20, 22 ) extending from the attachment section, a rotor section ( 24 ) supported for swing motion by the micro-beams, a permanent magnet ( 32 ) disposed in the stator section, and a coil ( 28 ) disposed in the rotor section. Electric current is conducted through the coil in the magnetic field created by the permanent magnet for causing the micro-beams to be displaced for inducing swing motion of the suspension secured to the rotor section and the magnetic head slider mounted thereon.
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