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Vertical magnetic recording medium, magnetic recording apparatus and manufacturing method of a vertical magnetic recording medium

一种垂直磁记录、介质的技术，应用在磁记录、磁记录层、记录层的基础层等方向，能够解决难以控制磁心宽度磁极的位置等问题，达到抑制磁性饱和、高磁导率、降低介质噪声的效果

Inactive Publication Date: 2005-10-19
RESONAC HOLDINGS CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Fourth, it is difficult to control the width of the magnetic core and the position of the magnetic poles of the recording head and the reproducing head (reproducing head)

Method used

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  • Vertical magnetic recording medium, magnetic recording apparatus and manufacturing method of a vertical magnetic recording medium
  • Vertical magnetic recording medium, magnetic recording apparatus and manufacturing method of a vertical magnetic recording medium
  • Vertical magnetic recording medium, magnetic recording apparatus and manufacturing method of a vertical magnetic recording medium

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no. 1 example

[0062] figure 2 is a partial diagram of the perpendicular magnetic recording medium of the first embodiment of the present invention. also, image 3 yes figure 2 A cross-sectional view of the perpendicular magnetic recording medium shown. exist figure 2 It should be noted that the protective film and the lubricating film 18 are omitted for convenience of illustration. image 3 A section along the track direction is shown.

[0063] see figure 2 and image 3 , the perpendicular magnetic recording medium 10 of the present embodiment is formed on the substrate 11, wherein, on the substrate 11, the layered structure of the soft magnetic underlayer 12, the magnetic confinement layer 13, the intermediate layer 14 and the recording layer 15 is supported sequentially, And the protective layer 16 and the lubricating layer 18 are continuously formed thereon. Furthermore, the magnetic flux confinement layer 13 is composed of a soft magnetic portion 13a and a nonmagnetic portio...

no. 2 example

[0149] Next, a description will be given of a magnetic memory according to a second embodiment of the present invention, which uses the perpendicular magnetic recording medium of the above-described embodiment.

[0150] Figure 9 is a partial diagram of a magnetic memory 60 according to a second embodiment of the present invention.

[0151] Referring to the present invention, a magnetic storage device 60 has a housing 61 containing a hub 62 driven by a spindle motor (not shown), a perpendicular magnetic recording medium 63 connected to the spindle motor and rotating therewith, an excitation component 64, An arm 65 attached to the excitation member 64 to move in the radial direction of the perpendicular magnetic recording medium 63 , a suspension 66 , and a magnetic head 68 supported by the suspension 66 .

[0152] Figure 10 is a schematic cross-sectional view of the magnetic head 68 .

[0153] see Figure 10 The magnetic head 68 includes a slider 70 made of AlTiC, and sup...

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Abstract

A vertical magnetic recording medium comprises a substrate, a soft magnetic backing layer formed on the substrate, a magnetic flux confinement layer formed on the soft magnetic backing layer, an intermediate layer formed on the magnetic flux confinement layer, and a recording layer of a vertical magnetization film formed on the intermediate layer, wherein the magnetic flux confinement part comprises a plurality of soft magnetic parts each formed along a track region of plural track regions and a non-magnetic part formed between adjacent track regions, the intermediate layer being formed of a non-magnetic material and is formed so as to cover a surface of the soft magnetic part and the non-magnetic parts.

Description

technical field [0001] The present invention generally relates to perpendicular magnetic recording media, magnetic memories and methods for producing perpendicular magnetic recording media, and in particular to perpendicular magnetic recording media having a flux-confining layer between a substrate and a recording layer. Background technique [0002] In recent years, due to the need to record movies, magnetic memories used in personal computers or home video recorders generally have a storage capacity of 100 GB or more. In addition, it is expected that the demand for large storage capacity and cost reduction of magnetic disk storage will become stronger in the future. [0003] For the in-plane magnetic recording technology used in the current market disk storage, it is generally believed that the surface recording density is 200GB / inch 2 is the maximum recording density achievable using this conventional technology. [0004] As a magnetic recording technology that can brea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/65G11B5/66G11B5/667G11B5/68G11B5/73G11B5/738G11B5/84G11B5/851G11B5/858
CPCG11B5/667G11B5/7325G11B5/8404G11B5/7368
Inventor 杉本利夫涡卷拓也田中厚志
Owner RESONAC HOLDINGS CORPORATION
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