CN100418137C - 垂直磁记录介质、其制造方法以及使用其的磁记录/再现装置 - Google Patents

垂直磁记录介质、其制造方法以及使用其的磁记录/再现装置 Download PDF

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Publication number
CN100418137C
CN100418137C CNB2005100655428A CN200510065542A CN100418137C CN 100418137 C CN100418137 C CN 100418137C CN B2005100655428 A CNB2005100655428 A CN B2005100655428A CN 200510065542 A CN200510065542 A CN 200510065542A CN 100418137 C CN100418137 C CN 100418137C
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China
Prior art keywords
layer
magnetic
amorphous
soft magnetic
substrate
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Expired - Fee Related
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CNB2005100655428A
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English (en)
Chinese (zh)
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CN1684151A (zh
Inventor
荒井礼子
棚桥究
本田好范
儿玉峰章
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Western Digital Technologies Inc
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Hitachi Global Storage Technologies Inc
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Publication of CN1684151A publication Critical patent/CN1684151A/zh
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/676—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/667—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/852—Orientation in a magnetic field

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  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
CNB2005100655428A 2004-04-15 2005-04-15 垂直磁记录介质、其制造方法以及使用其的磁记录/再现装置 Expired - Fee Related CN100418137C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004120754 2004-04-15
JP2004120754A JP4222965B2 (ja) 2004-04-15 2004-04-15 垂直磁気記録媒体及びその製造方法、磁気記録装置

Publications (2)

Publication Number Publication Date
CN1684151A CN1684151A (zh) 2005-10-19
CN100418137C true CN100418137C (zh) 2008-09-10

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CNB2005100655428A Expired - Fee Related CN100418137C (zh) 2004-04-15 2005-04-15 垂直磁记录介质、其制造方法以及使用其的磁记录/再现装置

Country Status (3)

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US (3) US7875371B2 (enExample)
JP (1) JP4222965B2 (enExample)
CN (1) CN100418137C (enExample)

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US9978413B2 (en) 2006-06-17 2018-05-22 Dieter Suess Multilayer exchange spring recording media
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US20080090106A1 (en) * 2006-10-13 2008-04-17 David Braunstein Soft underlayer for perpendicular media with mechanical stability and corrosion resistance
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US8982510B2 (en) * 2007-11-05 2015-03-17 HGST Netherlands B.V. Perpendicular magnetic recording disk having a permeability gradient
JP5304978B2 (ja) * 2007-11-08 2013-10-02 セイコーエプソン株式会社 圧電素子、液体噴射ヘッド、およびプリンタ
US8252367B2 (en) * 2007-12-19 2012-08-28 Hitachi Global Storage Technologies Netherlands B.V. Methods and apparatus to fabricate soft magnetic film with preferred uniaxial anisotropy for perpendicular recording
US9127365B2 (en) * 2008-02-16 2015-09-08 HGST Netherlands B.V. Generation of multilayer structures in a single sputtering module of a multi-station magnetic recording media fabrication tool
US8597723B1 (en) 2008-03-14 2013-12-03 WD Media, LLC Perpendicular magnetic recording medium with single domain exchange-coupled soft magnetic underlayer and device incorporating same
WO2013005785A1 (ja) * 2011-07-06 2013-01-10 日立金属株式会社 軟磁性下地層
FR3002690B1 (fr) * 2013-02-27 2016-07-29 Centre Nat De La Rech Scient - Cnrs - Procede de traitement d'une structure magnetique
US10276192B2 (en) * 2013-07-11 2019-04-30 Western Digital Technologies, Inc. Perpendicular magnetic recording medium
US8879208B1 (en) 2013-12-02 2014-11-04 Headway Technologies, Inc. Umbrella shield writer (UmSW) design for perpendicular magnetic recording (PMR)
US9147408B1 (en) * 2013-12-19 2015-09-29 Western Digital (Fremont), Llc Heated AFM layer deposition and cooling process for TMR magnetic recording sensor with high pinning field
JP6221907B2 (ja) * 2014-03-31 2017-11-01 ソニー株式会社 磁気記録媒体
JP6427290B1 (ja) * 2017-11-22 2018-11-21 株式会社Uacj 磁気ディスク用アルミニウム合金基板及びその製造方法、ならびに、当該磁気ディスク用アルミニウム合金基板を用いた磁気ディスク

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US20020028357A1 (en) * 2000-08-25 2002-03-07 Shukh Alexander M. Perpendicular recording medium with antiferromagnetic exchange coupling in soft magnetic underlayers
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Publication number Publication date
US20050244679A1 (en) 2005-11-03
JP4222965B2 (ja) 2009-02-12
US20110032638A1 (en) 2011-02-10
CN1684151A (zh) 2005-10-19
US20110151144A1 (en) 2011-06-23
JP2005302238A (ja) 2005-10-27
US7875371B2 (en) 2011-01-25

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Effective date of registration: 20181129

Address after: California, USA

Patentee after: Western Digital Technologies, Inc.

Address before: Amsterdam, The Netherlands

Patentee before: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.

CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20080910