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Soft magnetic film and thin film magnetic head

A soft magnetic thin film, thin film magnetic head technology, applied in the direction of the magnetic head, magnetic film, magnetic recording head using thin film, etc., to achieve the effect of high saturation magnetic flux density, excellent high frequency characteristics, excellent soft magnetic characteristics

Inactive Publication Date: 2006-09-20
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention is proposed to solve the problems of conventional thin-film magnetic heads

Method used

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  • Soft magnetic film and thin film magnetic head
  • Soft magnetic film and thin film magnetic head
  • Soft magnetic film and thin film magnetic head

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Experimental program
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Embodiment Construction

[0030] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0031] figure 1 is a schematic plan view of the disk drive unit 11 showing the internal mechanical structure. The disk drive unit 11 includes a thin-film magnetic head. A magnetic disk 13 as a magnetic recording medium is accommodated in the rectangular body member 12 of the disk drive unit 11 . The magnetic disk 13 is connected to the rotation shaft of the spindle motor 14 . The spindle motor 14 rotates the disk 13 at a high speed, such as 7200 rpm or 10000 rpm.

[0032] A carriage 16 is accommodated in the body member 12 , which is rotatable about a support shaft 15 perpendicular to the disk surface of the magnetic disk 13 . The carriage 16 includes: an arm 17 extending horizontally from the support shaft 15; and an elastic suspension 18 located at the front end of the arm 17 and extending forward therefrom.

[0033] A head slider 19 is l...

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Abstract

The soft magnetic film has superior soft magnetic characteristics and is suitable for a thin film magnetic head. The soft magnetic film of the present invention comprises: a magnetic base layer including a ferromagnetic element; and a ferromagnetic layer being piled on the magnetic base layer. The soft magnetic film has uniaxial magnetic anisotropy. The magnetic base layer includes at least one element selected from Fe, Ni and Co as the ferromagnetic element.

Description

technical field [0001] The invention relates to a soft magnetic thin film and a thin film magnetic head. Background technique [0002] In a disk drive unit, a thin-film magnetic head is used to write data to and reproduce data from a recording medium. A thin-film magnetic head has an upper magnetic pole and a lower magnetic pole, which are magnetic layers, and a spacer layer, which is a non-magnetic layer located between the two magnetic poles. A magnetic field is generated between the upper and lower magnetic poles to write data into the media. [0003] The thin-film magnetic head can increase the saturation magnetic flux density of the magnetic poles to increase the recording density. Therefore, a magnetic thin film (soft magnetic thin film) having a high saturation magnetic flux density and soft magnetic properties is required. [0004] The applicant of the present invention invented a thin film magnetic head having a soft magnetic thin film (see Japanese Patent Public...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/31H01F10/14H01F10/16
CPCB82Y10/00H01F10/265H01F10/14B82Y25/00G11B5/3116H01F10/16G11B5/3146G11B5/31
Inventor 兼淳一上原裕二野间贤二近泽哲史
Owner FUJITSU LTD
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