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Thin-film magnetic head with heater, magnetic head gimbal assembly, and magnetic disk drive apparatus

A thin-film magnetic head and disk drive technology, which is applied to the direction of the magnetic head using thin film, magnetic recording head, head fluid dynamic spacing, etc., can solve the problems of increasing the heat of MR effect components and reducing the reading performance of MR effect components

Inactive Publication Date: 2006-01-04
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the heat transmitted from the heater to the MR effect part is increased, thereby reducing the reading performance of the MR effect part whose high temperature depends on the output

Method used

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  • Thin-film magnetic head with heater, magnetic head gimbal assembly, and magnetic disk drive apparatus
  • Thin-film magnetic head with heater, magnetic head gimbal assembly, and magnetic disk drive apparatus
  • Thin-film magnetic head with heater, magnetic head gimbal assembly, and magnetic disk drive apparatus

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Embodiment Construction

[0048] figure 1 is a schematic perspective view showing the configuration of main parts of a magnetic disk drive apparatus according to an embodiment of the present invention, figure 2 is a transmission diagram showing the HGA as a whole, image 3 is a perspective view of a thin-film magnetic head (slider) mounted on the end of the HGA.

[0049] exist figure 1 Among them, reference numeral 10 denotes a plurality of magnetic disks rotating around a shaft 11 of a spindle motor, 12 denotes an assembly carriage device (assembly carriage device) for positioning a thin-film magnetic head (slider) on a magnetic track, and 13 denotes a device for controlling a thin-film magnetic head (slider). Recording and reproducing circuit for read / write operation and heating operation of the magnetic head.

[0050] The component carrier arrangement 12 is provided with a plurality of drive arms 14 . These drive arms 14 are rotated around a pivot bearing axis 16 by a voice coil motor (VCM) 15 ...

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Abstract

A thin-film magnetic head according to the present invention includes: a substrate; at least one magnetic head component formed on the substrate; a multilayer cover coat made of a plurality of cover coats formed on the substrate to cover the at least one magnetic head components; and at least one heating component, which is heated at least during operation of the at least one magnetic head component, the at least one heating component is disposed in the multilayer cover coating, and in the multilayer cover coating, the distance lining The coefficient of thermal expansion of the covercoat layer furthest from the bottom is less than the coefficient of thermal expansion of the covercoat layer closest to the substrate in the multilayer covercoat layer.

Description

[0001] priority claim [0002] This patent application claims the benefit of Japanese Patent Application No. 2004-167266 filed on June 4, 2004 and Japanese Patent Application No. 2005-102637 filed on March 31, 2005, including Nos. 2004-167266 and The contents of Japanese Patent Application No. 2005-102637 are incorporated herein by reference. technical field [0003] The present invention relates to a thin film magnetic head with a heater in a multilayer overcoat, a head gimbal assembly (HGA) with a thin film magnetic head, and a magnetic disk drive with the HGA. Background technique [0004] In a magnetic disk drive device, a thin-film magnetic head writes data to / reads data from a magnetic disk that is rotated by a spindle motor. The thin film magnetic head has an inductive write head part and a magnetoresistance (MR) effect read head part formed on a slider substrate fixed to the end of a suspension of the HGA. During writing and reading signals, the thin-film magnetic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/31G11B5/60G11B21/21
Inventor 梅原刚太田宪和田上胜通松隈裕树大山信也小出宗司沟口义之山田和秀
Owner TDK CORPARATION
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