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Thermal flying-height control slider for hard disk drive

A hard disk drive, a technology for controlling sliders, applied in the direction of the hydrodynamic spacing of the head, the configuration/installation of the recording head, the support head, etc., can solve the instability of the read-write head, affect the read-write performance and storage capacity, and fail to improve Read and write performance and storage capacity and other issues, to achieve the effect of easy manufacture and installation, improve stability, and improve the efficiency of reading data

Inactive Publication Date: 2013-12-18
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The upward thermal deformation not only has no positive effect on improving read-write performance and storage capacity, but will cause instability of the read-write head, affecting the improvement of read-write performance and storage capacity

Method used

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  • Thermal flying-height control slider for hard disk drive
  • Thermal flying-height control slider for hard disk drive
  • Thermal flying-height control slider for hard disk drive

Examples

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and example the structure of the thermal flying high control slider in the present invention is described in further detail.

[0021] figure 1 is the overall structure diagram of the existing slider, figure 2 It is the local structure diagram of the existing slider without the micro-heater, image 3 It is a partial structural diagram of the thermal fly height control slider including the micro heater in the embodiment of the present invention. in, figure 1 The larger cube in the figure is the slider substrate, and its upper surface is the air bearing surface, while the smaller cube on the side is the slider spacer, and the magnetic head and heater are embedded inside the spacer. figure 2 Two separate protective layers sandwich the read head in the middle, and the write head is a helically wound coil. The ten small circles in the figure are the cross-sections of the helix. exist figure 2 Among them, the inward direct...

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Abstract

The invention provides a thermal flying-height control slider for a hard disk drive. In the thermal flying-height control slider, according to a principle that the read-write magnetic head area of the slider can be subjected to thermal expansion so as to further reduce flying height by electrifying a write coil in a magnetic head write process, a microheater is additionally arranged at a selected middle position of a read-write magnetic head on the hard disk slider, and a unique and efficient W-shaped microheater structure is designed. By means of the structure, the magnetic reading head can obviously move downwards in a read operation process, the flying height of the hard disk magnetic head in the read operation process is decreased, and the precision and the efficiency of data read are increased.

Description

technical field [0001] The invention belongs to the technical field of computer storage devices, and in particular relates to a thermal flying height control slider, which can effectively reduce the flying height of a magnetic head during a hard disk data reading operation, so as to improve the storage density of the hard disk. Background technique [0002] In the hard disk drive, with people's pursuit of large-capacity data storage, it is very important to greatly increase the storage capacity of the hard disk by reducing the information bit area of ​​the recorded data within a relatively limited disk area. However, based on the fact that when the data bits recorded on the hard disk do not reach a certain level of magnetic force, the inductive magnetic head cannot read the information bits. Therefore, while the information bit area is small, the flying height of the magnetic head of the hard disk must be reduced, thereby increasing the magnetic coupling between the magnetic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B5/60G11B21/21
Inventor 陈进才周功业许保亮陈明卢萍
Owner HUAZHONG UNIV OF SCI & TECH
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