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WO2009038165A1 - 磁気ディスク及び磁気ディスクの製造方法 - Google Patents

磁気ディスク及び磁気ディスクの製造方法 Download PDF

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Publication number
WO2009038165A1
WO2009038165A1 PCT/JP2008/066964 JP2008066964W WO2009038165A1 WO 2009038165 A1 WO2009038165 A1 WO 2009038165A1 JP 2008066964 W JP2008066964 W JP 2008066964W WO 2009038165 A1 WO2009038165 A1 WO 2009038165A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
magnetic disk
magnetic
protecting
nitrogen
Prior art date
Application number
PCT/JP2008/066964
Other languages
English (en)
French (fr)
Inventor
Masafumi Ishiyama
Original Assignee
Hoya Corporation
Hoya Magnetics Singapore Pte. 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 Hoya Corporation, Hoya Magnetics Singapore Pte. Ltd. filed Critical Hoya Corporation
Priority to US12/666,555 priority Critical patent/US8425975B2/en
Publication of WO2009038165A1 publication Critical patent/WO2009038165A1/ja

Links

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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8408—Processes or apparatus specially adapted for manufacturing record carriers protecting the 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/726—Two or more protective coatings
    • G11B5/7262—Inorganic protective coating
    • G11B5/7264—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
    • G11B5/7266—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon comprising a lubricant over the inorganic carbon coating
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/726—Two or more protective coatings
    • G11B5/7262—Inorganic protective coating
    • G11B5/7264—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
    • G11B5/7268—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon comprising elemental nitrogen in the inorganic carbon coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

　磁気記録を行う磁気ディスク１０であって、磁気記録を行うための磁性層４と、磁性層４上に形成されて、磁性層４を保護する保護層５と、保護層５上に形成される潤滑層６とを備える。保護層５は、実質的に炭素、水素、及び窒素からなる層であり、角度分解Ｘ線光電子分光分析により、光電子の検出角度を７°にして検出したＮ１ｓ及びＣ１ｓスペクトルの強度から求めた窒素と炭素の原子量比（Ｎ／Ｃ）が０．１５以上０．２５以下である。この保護層５の構成は、膜厚３ｎｍ以下であっても耐摩耗性及び摺動特性に優れ、ハイフライライト障害等を回避できる磁気ディスクを提供する。
PCT/JP2008/066964 2007-09-21 2008-09-19 磁気ディスク及び磁気ディスクの製造方法 WO2009038165A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/666,555 US8425975B2 (en) 2007-09-21 2008-09-19 Magnetic disk and magnetic disk manufacturing method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007244790A JP5183134B2 (ja) 2007-09-21 2007-09-21 磁気ディスク及び磁気ディスクの製造方法
JP2007-244790 2007-09-21

Publications (1)

Publication Number Publication Date
WO2009038165A1 true WO2009038165A1 (ja) 2009-03-26

Family

ID=40467974

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/066964 WO2009038165A1 (ja) 2007-09-21 2008-09-19 磁気ディスク及び磁気ディスクの製造方法

Country Status (3)

Country Link
US (1) US8425975B2 (ja)
JP (1) JP5183134B2 (ja)
WO (1) WO2009038165A1 (ja)

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Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
US8425975B2 (en) 2013-04-23
US20100323221A1 (en) 2010-12-23
JP2009076147A (ja) 2009-04-09
JP5183134B2 (ja) 2013-04-17

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