Magnetic folding head combination having balance weight, magnetic disc drive unit and manufacturing method therefor

A technology of disk drive and magnetic head, which is applied to align the tracks on the magnetic disk, the hydrodynamic spacing of the head, and the direction of the support head, etc., which can solve the problems of the flight attitude sensitivity of the large magnetic head, adverse effects on reliability, and the easy change of the flight attitude of the magnetic head.

Inactive Publication Date: 2009-01-07
SAE MAGNETICS (HK) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Also, this head tilt will result in greater slider flying attitude sensitivity
Specifically, when the magnetic head flies over the magnetic disk, the flying attitude of the magnetic head will easily change, thereby adversely affecting the reliability of the magnetic head-disk interface of the entire disk drive unit (head-disk interface reliability).

Method used

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  • Magnetic folding head combination having balance weight, magnetic disc drive unit and manufacturing method therefor
  • Magnetic folding head combination having balance weight, magnetic disc drive unit and manufacturing method therefor
  • Magnetic folding head combination having balance weight, magnetic disc drive unit and manufacturing method therefor

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Embodiment Construction

[0050] Various embodiments of the invention will now be described. As will be described below, the present invention provides an HGA in which the weight between the leading edge and the trailing edge of the magnetic head is balanced. By adjusting the weight of the cantilever tongue (or support plate) and / or by changing the position of the raised point, the weight between the leading edge and the trailing edge can be fully balanced. Therefore, the resonant performance, servo bandwidth and track density of the HGA are improved. In addition, the HGA sensitivity to head fly, physical contact friction and contamination between the head and disk will be reduced.

[0051] Figures 4a-5b A head gimbal assembly with a weight-balanced head according to an embodiment of the present invention is shown. As shown in the figure, the HGA 200 includes a magnetic head 203, a thin-film piezoelectric micro-actuator 217 (such as Figure 4d , 4e shown) and the cantilever 290 for supporting the...

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Abstract

The invention discloses a magnetic head folding tablets combination which comprises a loading rod provided with concave points, a cantilever ligule and a flexible component of a support board, and a magnetic head which is provided with a front part and a back part that is opposite to the front part. The flexible component is connected with the cantilever ligule. The magnetic head is arranged on the flexible component, thus the magnetic head is supported in the center of the magnetic head by the concave points. The front part is arranged at the cantilever ligule and the back part is arranged on the support board. A weight balancing structure is formed at the cantilever ligule of the flexible component, which leads the weight of the magnetic head folding tablets combination to keep balance between the part from the tail part to the magnetic head center part and the parts from the front part to the magnetic head center. A production method for the magnetic folding tablets combination provided with a balanced weight is also disclosed by the invention.

Description

technical field [0001] The present invention relates to an information recording disk drive unit, more particularly to a head gimbal assembly (HGA), a disk drive unit containing the head gimbal assembly and a manufacturing method thereof. The weights between the leading edge portion and the trailing edge portion of the head gimbal assembly are mutually balanced. Background technique [0002] A common type of information storage device is a magnetic disk drive system that uses a magnetic medium to store data and a moveable read / write head positioned over the magnetic medium to selectively read data from and 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 track density by r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/596G11B5/60G11B21/20
Inventor 姚明高谢怡如
Owner SAE MAGNETICS (HK) LTD
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