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Microactuator, head gimbal assembly containing the same, and method of manufacturing the same and hard disk driver

一种微致动器、磁头的技术，应用在对齐磁盘上的磁道、驱动/移动记录头、支持头等方向，能够解决硬盘驱动器可靠性降低、微致动器110强度下降等问题，达到确保摆动范围、良好效果、提高强度的效果

Inactive Publication Date: 2007-01-10
SAE MAGNETICS (HK) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as in the case of using a dtex slider, the strength of the microactuator 110, which plays an important role in the process of supporting the magnetic head slider 101' for fine positioning, is still reduced, and the reliability of the hard disk drive is reduced. problem of reduced sex

Method used

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  • Microactuator, head gimbal assembly containing the same, and method of manufacturing the same and hard disk driver
  • Microactuator, head gimbal assembly containing the same, and method of manufacturing the same and hard disk driver
  • Microactuator, head gimbal assembly containing the same, and method of manufacturing the same and hard disk driver

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[0050] to combine Figure 1 to Figure 6 The first embodiment of the present invention is described as shown. in, figure 1 is a schematic diagram of the structure of a disk drive, figure 2 is a schematic diagram of the structure of the magnetic head gimbal assembly. image 3 It is a schematic diagram of the structure of the micro-actuator for the magnetic head. Figure 4 to Figure 5 It is an explanatory diagram showing the actuator mounting process.

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Abstract

Microactuator, head gimbal assembly using the microactuator,method for manufacturing the head gimbal assembly, and hard disk drive are provided in the invention. The microactuator is provided with a base part bonded to a flexure, a pair of arm parts bonded to the base part, and PZT elements attached to each arm of the arm parts to be elongated / contracted based on an applied driving signal, and adapted to hold the side face of a magnetic head slider. The lengths of the arms are equal to or shorter than the longitudinal length of at least the magnetic head slider. The microactuator according to the invention is capable of achieving a structural strength while maintaining highly accurate positioning control with respect to a high recording density magnetic disk, and reducing manufacturing costs by using a conventional manufacturing process.

Description

technical field [0001] The invention relates to a micro-actuator, in particular to a micro-actuator capable of micro-positioning a magnetic head. In addition, it also relates to a magnetic head gimbal assembly using the micro-actuator, a manufacturing method thereof, and a hard disk drive. Background technique [0002] As an information storage device, a hard disk drive is equipped with a magnetic head gimbal assembly, and a magnetic head slider for recording and reproducing a magnetic disk as a storage medium is mounted on the magnetic head gimbal assembly. Such as Figure 7 As shown, the figure shows a HGA 100 in the prior art. [0003] The head gimbal assembly 100 includes: a magnetic head slider 101, an elastic flexure 102 on which the magnetic head slider 101 is installed on the front end, formed on the flexure 102 and carrying out the movement of the magnetic head slider 101 An FPC 103 (Flexible Printed Circuit) for signal transmission, and a load bar 104 supporting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/596G11B5/60G11B21/10G11B21/21
CPCG11B5/4826
Inventor 本田隆松井秀敏
Owner SAE MAGNETICS (HK) LTD
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