Magnetic head actuator and related gimbal assembly, making method thereof and related magnetic disk drive

An actuator and gimbal technology, applied in the field of magnetic head gimbal assembly, magnetic disk drive, and manufacturing such HGA, can solve problems such as deterioration of magnetic head characteristics, difficulty in obtaining stroke, and reduction of shock resistance.

Inactive Publication Date: 2002-05-01
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is therefore difficult to obtain sufficient stroke;
[0010] (4) Because the actuator has a three-dimensional complex fixed structure, it is difficult to operate when assembling the HGA, and conventional HGA assembly equipment cannot be used, so the production efficiency is poor
However, forming such a gap further reduces the shock resistance, and it is difficult to accurately keep the gap constant
In particular, since it is difficult to keep the suspension, actuator, and head slider in exact parallel, the head characteristics deteriorate

Method used

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  • Magnetic head actuator and related gimbal assembly, making method thereof and related magnetic disk drive
  • Magnetic head actuator and related gimbal assembly, making method thereof and related magnetic disk drive
  • Magnetic head actuator and related gimbal assembly, making method thereof and related magnetic disk drive

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Embodiment Construction

[0050] figure 1 Show the main parts of the preferred embodiment disk unit of the present invention, Fig. 2 shows the whole structure of HGA in this embodiment, image 3 and 4 The top portions of the HGA of this embodiment are shown viewed from different directions from each other.

[0051] figure 1 Reference numeral 10 represents a plurality of hard disks rotating about an axis 11, and reference numeral 11 represents an assembly carriage device for positioning individual magnetic head elements on tracks of individual disks. The assembly bracket device 12 is mainly composed of a bracket 14 that can rotate around an axis 13 and a main actuator 15 such as a voice coil motor (VCM) that drives the bracket 14 to rotate.

[0052] The bottom portion of one end of a plurality of drive arms 16 is stacked along the shaft 13, fixed to the bracket 14, and one or two HGAs 17 are mounted on the top portion of the other end of each arm 16. The top portion of each HGA 17 is provided with a...

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Abstract

A precise positioning actuator to be fixed with a head slider with at least one head element and with a support, for precisely positioning the at least one head element, includes a pair of movable arms capable of displacing in response to a drive signal applied to the actuator. The head slider is caught in a space between the movable arms.

Description

technical field [0001] The present invention relates to a precise positioning actuator for a magnetic head element, such as a thin film magnetic head element or an optical disk head element, to a head gimbal assembly (HGA) having such an actuator, to a disk drive having such an HGA and to manufacturing such HGA method. Background technique [0002] In disk drives, thin film head elements for writing magnetic information to and / or reading magnetic information from the disk are typically formed on a head slider that scans over a rotating disk during operation. The sliders are respectively supported on the hangers of the HGA. [0003] In recent years, the recording density and reproducing density (track density) in the radial direction or the track width direction of the magnetic disk have increased rapidly to meet the data storage capacity and density requirements in the magnetic disk drive with increasing holes. For increased track densities, voice coil motors (VCMs) alone ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/596G11B5/55G11B21/10G11B21/21
CPCG11B5/5552
Inventor 白石一雅笠岛多闻
Owner TDK CORPARATION
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