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WO2008146351A1 - 垂直磁気記録媒体及びそれを有する記憶装置、垂直磁気記録媒体の製造方法 - Google Patents

垂直磁気記録媒体及びそれを有する記憶装置、垂直磁気記録媒体の製造方法 Download PDF

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Publication number
WO2008146351A1
WO2008146351A1 PCT/JP2007/060787 JP2007060787W WO2008146351A1 WO 2008146351 A1 WO2008146351 A1 WO 2008146351A1 JP 2007060787 W JP2007060787 W JP 2007060787W WO 2008146351 A1 WO2008146351 A1 WO 2008146351A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
recording medium
magnetic
vertical magnetic
magnetic recording
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2007/060787
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English (en)
French (fr)
Inventor
Hideaki Takahoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to PCT/JP2007/060787 priority Critical patent/WO2008146351A1/ja
Publication of WO2008146351A1 publication Critical patent/WO2008146351A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
    • G11B5/737—Physical structure of underlayer, e.g. texture
    • 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
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

　非磁性基板（１２）上に、磁気ヘッドからの磁束を再びヘッドに還流させる磁路を形成する軟磁性裏打ち層（１６）、結晶配向制御層としての非磁性中間層（２２）、磁性層としての記録層（２４）を順次有し、磁化容易軸の方向が記録層（２４９の膜面に垂直であり、記録層（２４）は磁壁をトラップすると共にイオンの照射によって形成された磁壁ピン止めサイト（２５）を有し、磁壁ピン止めサイト（２５）によって決められる領域を記録ビットとする垂直磁気記録媒体（１０）において、記録層（２４）は垂直磁気記録媒体（１０）の積層方向に垂直な平滑面（２４ａ、２４ｂ）を磁壁ピン止めサイト（２５）が形成された部分に有し、非磁性中間層（２２）と軟磁性裏打ち層（１６）との間に、イオンが非磁性中間層（２２）から軟磁性裏打ち層（１６）に注入されることを防止するイオンガード層（１８）を有することを特徴とする垂直磁気記録媒体（１０）を提供する。
PCT/JP2007/060787 2007-05-28 2007-05-28 垂直磁気記録媒体及びそれを有する記憶装置、垂直磁気記録媒体の製造方法 Ceased WO2008146351A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/060787 WO2008146351A1 (ja) 2007-05-28 2007-05-28 垂直磁気記録媒体及びそれを有する記憶装置、垂直磁気記録媒体の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/060787 WO2008146351A1 (ja) 2007-05-28 2007-05-28 垂直磁気記録媒体及びそれを有する記憶装置、垂直磁気記録媒体の製造方法

Publications (1)

Publication Number Publication Date
WO2008146351A1 true WO2008146351A1 (ja) 2008-12-04

Family

ID=40074637

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/060787 Ceased WO2008146351A1 (ja) 2007-05-28 2007-05-28 垂直磁気記録媒体及びそれを有する記憶装置、垂直磁気記録媒体の製造方法

Country Status (1)

Country Link
WO (1) WO2008146351A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009116413A1 (ja) * 2008-03-17 2009-09-24 Hoya株式会社 磁気記録媒体及びその製造方法
WO2010010843A1 (ja) * 2008-07-22 2010-01-28 富士通株式会社 磁気記録媒体製造方法、磁気記録媒体、および情報記憶装置
JP2010153002A (ja) * 2008-12-26 2010-07-08 Ulvac Japan Ltd 磁気記憶媒体製造方法、磁気記憶媒体、および情報記憶装置
JP2010277616A (ja) * 2009-05-26 2010-12-09 Hitachi Global Storage Technologies Netherlands Bv 磁気記録媒体及びその製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002100019A (ja) * 2000-09-26 2002-04-05 Hitachi Ltd 磁気記録媒体
JP2004272982A (ja) * 2003-03-06 2004-09-30 Fuji Electric Device Technology Co Ltd 垂直磁気記録媒体の製造方法及び垂直磁気記録媒体
JP2006309841A (ja) * 2005-04-27 2006-11-09 Tdk Corp 磁性パターン形成方法、磁気記録媒体、磁気記録再生装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002100019A (ja) * 2000-09-26 2002-04-05 Hitachi Ltd 磁気記録媒体
JP2004272982A (ja) * 2003-03-06 2004-09-30 Fuji Electric Device Technology Co Ltd 垂直磁気記録媒体の製造方法及び垂直磁気記録媒体
JP2006309841A (ja) * 2005-04-27 2006-11-09 Tdk Corp 磁性パターン形成方法、磁気記録媒体、磁気記録再生装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009116413A1 (ja) * 2008-03-17 2009-09-24 Hoya株式会社 磁気記録媒体及びその製造方法
US8414966B2 (en) 2008-03-17 2013-04-09 Wd Media (Singapore) Pte. Ltd. Magnetic recording medium and manufacturing method of the same
US9093100B2 (en) 2008-03-17 2015-07-28 Wd Media (Singapore) Pte. Ltd. Magnetic recording medium including tailored exchange coupling layer and manufacturing method of the same
WO2010010843A1 (ja) * 2008-07-22 2010-01-28 富士通株式会社 磁気記録媒体製造方法、磁気記録媒体、および情報記憶装置
JP2010027159A (ja) * 2008-07-22 2010-02-04 Fujitsu Ltd 磁気記録媒体製造方法、磁気記録媒体、および情報記憶装置
JP2010153002A (ja) * 2008-12-26 2010-07-08 Ulvac Japan Ltd 磁気記憶媒体製造方法、磁気記憶媒体、および情報記憶装置
JP2010277616A (ja) * 2009-05-26 2010-12-09 Hitachi Global Storage Technologies Netherlands Bv 磁気記録媒体及びその製造方法

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