Cantilever member, magnetic head folding piece combination and manufacturing method and disk driving unit

Abstract

The invention discloses a cantilever piece of a magnetic head folded piece combination, which comprises a flexible member provided with a tongue region and an external trigger board, wherein, the external trigger board is provided with a pair of rigid arms and a pair of elastic arms; the pair of elastic arms lead the flexible member to have favorable flexibility and is helpful to a magnetic head to have enough displacement; the pair of rigid arms provide enough rigidity to the flexible member, thus not only preventing the magnetic head folded piece combination provided with the external trigger board from generating cantilever piece deformation and emboss separation successfully, but also contributing to the improvement of the shakeproof performance of a magnetic head folded piece group. Moreover, the structure of the cantilever piece provides good static property to the magnetic head; therefore, the dynamic property of the magnetic head folded piece combination is enhanced. The invention also discloses the magnetic head folded piece combination provided with the cantilever piece and a manufacturing method thereof as well as a disk driving unit provided with the magnetic head folded piece combination.

Description

technical field [0001] The present invention relates to an information recording disk drive unit, in particular to a suspension of a head gimbal assembly (HGA, head gimbal assembly) with a micro-actuator, a head gimbal assembly, a manufacturing method thereof, and a disk drive unit. Background technique [0002] A disk drive unit is an information storage device that uses a magnetic medium to store data, and has a movable magnetic read / write head positioned on the magnetic medium to selectively read data from or write data to the magnetic medium. [0003] Consumers have always expected increasing storage capacity from such disk drive systems, while at the same time expecting faster and more accurate read and write speeds. Therefore, disk manufacturers have been devoting themselves to developing disk systems with higher storage capacity, such as increasing the density of magnetic tracks by reducing the track width or track spacing on the disk, thereby indirectly increasing th...

AI Technical Summary

Problems solved by technology

In addition, since the magnetic head 103 is partially installed on the magnetic head supporting part 112, and the magnetic head supporting part 112 is connected to the metal substrate through the cable of the flexible member 111, the static posture of the magnetic head 103, such as the lateral static posture ( PSA, pitch static attitude) and longitudinal static attitude (RSA, roll static attitude) are difficult to control, resulting in unstable performance of the head gimbal assembly and seriously affecting the dynamic performance of the head gimbal assembly. This situation occurs when vibration or impact occurs or Especially obvious during production or operation

Finally, the above structure makes the whole head gimbal assembly have poor anti-vibration performance

When vibration and impact events occur, such as tilted fall impact or handling impact, the cantilever 110 or the piezoelectric element 107 of the piezoelectric microactuator may be damaged

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