WO2009057658A1 - 磁気ヘッド用基板、磁気ヘッドおよび記録媒体駆動装置 - Google Patents

磁気ヘッド用基板、磁気ヘッドおよび記録媒体駆動装置 Download PDF

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Publication number
WO2009057658A1
WO2009057658A1 PCT/JP2008/069685 JP2008069685W WO2009057658A1 WO 2009057658 A1 WO2009057658 A1 WO 2009057658A1 JP 2008069685 W JP2008069685 W JP 2008069685W WO 2009057658 A1 WO2009057658 A1 WO 2009057658A1
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WO
WIPO (PCT)
Prior art keywords
magnetic head
substrate
recording medium
medium drive
ticxoynz
Prior art date
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PCT/JP2008/069685
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English (en)
French (fr)
Inventor
Yucong Wang
Shuji Nakazawa
Takuya Gentsu
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Kyocera Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyocera Corporation filed Critical Kyocera Corporation
Publication of WO2009057658A1 publication Critical patent/WO2009057658A1/ja
Priority to US12/740,692 priority Critical patent/US20100315743A1/en

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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/31Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3103Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
    • G11B5/3106Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing where the integrated or assembled structure comprises means for conditioning against physical detrimental influence, e.g. wear, contamination
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    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/111Fine ceramics
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    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
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    • GPHYSICS
    • G11INFORMATION STORAGE
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    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/10Structure or manufacture of housings or shields for heads
    • G11B5/102Manufacture of housing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005Specially adapted for spacing from a rotating disc using a fluid cushion
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005Specially adapted for spacing from a rotating disc using a fluid cushion
    • G11B5/6082Design of the air bearing surface
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Abstract

 本発明は、Al2O3が60質量%以上70質量%以下、TiCXOYNZ(但し、X、YおよびZは、0.5≦X≦0.993、0.005≦Y≦0.30、0.002≦Z≦0.20、0.507≦X+Y+Z≦1である。)が30質量%以上40質量%以下の範囲の焼結体からなる磁気ヘッド用基板に関する。焼結体は、切断面における任意の10μm以上の直線上に存在するAl2O3の結晶粒子およびTiCXOYNZの結晶粒子の個数の合計に対して、前記TiCXOYNZの結晶粒子の個数の比率が55%以上75%以下である。本発明はさらに、前記磁気ヘッド用基板から得られる磁気ヘッド、および前記磁気ヘッドを備えた記録媒体駆動装置に関する。
PCT/JP2008/069685 2007-10-29 2008-10-29 磁気ヘッド用基板、磁気ヘッドおよび記録媒体駆動装置 WO2009057658A1 (ja)

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US12/740,692 US20100315743A1 (en) 2007-10-29 2010-04-29 Magnetic read/write head substrate

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JP2007-279852 2007-10-29
JP2007279852A JP2009110571A (ja) 2007-10-29 2007-10-29 磁気ヘッド用基板およびこれを用いた磁気ヘッドならびに記録媒体駆動装置

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WO2009057658A1 true WO2009057658A1 (ja) 2009-05-07

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US8526137B2 (en) * 2010-04-16 2013-09-03 International Business Machines Corporation Head comprising a crystalline alumina layer
JP6563709B2 (ja) 2014-06-30 2019-08-21 日本タングステン株式会社 薄膜磁気ヘッド用基板、磁気ヘッドスライダ、および、ハードディスクドライブ装置
JP6563708B2 (ja) 2014-06-30 2019-08-21 日本タングステン株式会社 薄膜磁気ヘッド用基板、磁気ヘッドスライダ、および、ハードディスクドライブ装置
JP6563710B2 (ja) 2014-06-30 2019-08-21 日本タングステン株式会社 薄膜磁気ヘッド用基板、磁気ヘッドスライダ、および、ハードディスクドライブ装置

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