WO2009028621A1 - 垂直磁気記録媒体、その製造方法および磁気記録再生装置 - Google Patents

垂直磁気記録媒体、その製造方法および磁気記録再生装置 Download PDF

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Publication number
WO2009028621A1
WO2009028621A1 PCT/JP2008/065438 JP2008065438W WO2009028621A1 WO 2009028621 A1 WO2009028621 A1 WO 2009028621A1 JP 2008065438 W JP2008065438 W JP 2008065438W WO 2009028621 A1 WO2009028621 A1 WO 2009028621A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic recording
layer
crystal grains
intermediate layer
recording medium
Prior art date
Application number
PCT/JP2008/065438
Other languages
English (en)
French (fr)
Inventor
Migaku Takahashi
Shin Saito
Gohei Kurokawa
Yuzo Sasaki
Tatsu Komatsuda
Atsushi Hashimoto
Akihiko Takeo
Tomoyuki Maeda
Original Assignee
Showa Denko K.K.
Kabushiki Kaisha Toshiba
Tohoku University
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 Showa Denko K.K., Kabushiki Kaisha Toshiba, Tohoku University filed Critical Showa Denko K.K.
Priority to CN2008801131883A priority Critical patent/CN101836255B/zh
Priority to US12/675,090 priority patent/US8512884B2/en
Publication of WO2009028621A1 publication Critical patent/WO2009028621A1/ja

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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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • 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
    • G11B5/62—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
    • G11B5/7379—Seed layer, e.g. at least one non-magnetic layer is specifically adapted as a seed or seeding 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
    • G11B5/851—Coating a support with a magnetic layer by sputtering

Abstract

　非磁性基板上に、裏打ち層と、配向制御層と、磁気記録層と、保護層とを少なくとも備える垂直磁気記録媒体であって、前記配向制御層は、前記基板側からシード層と、第１中間層と、第２中間層とを含む３層以上から構成され、前記第１中間層を構成する結晶粒は、前記シード層を構成する結晶粒上にそれぞれエピタキシャル成長され、前記第２中間層を構成する結晶粒は、前記第１中間層を構成する結晶粒上にそれぞれエピタキシャル成長されるとともに、前記第２中間層を構成する結晶粒は、前記第１中間層を構成する結晶粒に比べ微細化されている垂直磁気記録媒体を提供する。
PCT/JP2008/065438 2007-08-31 2008-08-28 垂直磁気記録媒体、その製造方法および磁気記録再生装置 WO2009028621A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008801131883A CN101836255B (zh) 2007-08-31 2008-08-28 垂直磁记录介质、其制造方法和磁记录再生装置
US12/675,090 US8512884B2 (en) 2007-08-31 2008-08-28 Perpendicular magnetic recording medium, method for producing the same, and magnetic recording/reproducing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007226648A JP5397926B2 (ja) 2007-08-31 2007-08-31 垂直磁気記録媒体、その製造方法および磁気記録再生装置
JP2007-226648 2007-08-31

Publications (1)

Publication Number Publication Date
WO2009028621A1 true WO2009028621A1 (ja) 2009-03-05

Family

ID=40387335

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/065438 WO2009028621A1 (ja) 2007-08-31 2008-08-28 垂直磁気記録媒体、その製造方法および磁気記録再生装置

Country Status (4)

Country Link
US (1) US8512884B2 (ja)
JP (1) JP5397926B2 (ja)
CN (1) CN101836255B (ja)
WO (1) WO2009028621A1 (ja)

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* Cited by examiner, † Cited by third party
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JP2011129241A (ja) * 2009-12-16 2011-06-30 Hitachi Global Storage Technologies Netherlands Bv 垂直型磁気記録ディスクおよび垂直型磁気記録ディスクの製造方法
JP2016201159A (ja) * 2015-04-13 2016-12-01 昭和電工株式会社 垂直磁気記録媒体及び磁気記録再生装置
JP2016225002A (ja) * 2015-05-29 2016-12-28 昭和電工株式会社 垂直磁気記録媒体及び磁気記録再生装置

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JP5401147B2 (ja) * 2009-03-30 2014-01-29 ダブリュディ・メディア・シンガポール・プライベートリミテッド 垂直磁気記録媒体の製造方法
JP2010257567A (ja) * 2009-03-30 2010-11-11 Wd Media Singapore Pte Ltd 垂直磁気記録媒体およびその製造方法
JP2011123976A (ja) * 2009-12-14 2011-06-23 Showa Denko Kk 磁気記録媒体の製造方法及び磁気記録再生装置
US20120064375A1 (en) * 2010-09-14 2012-03-15 Hitachi Global Storage Technologies Netherlands B. V. Method for manufacturing a perpendicular magnetic data recording media having a pseudo onset layer
US8592060B2 (en) 2010-12-21 2013-11-26 HGST Netherlands B.V. Perpendicular magnetic recording media having low medium noise and systems using the same
JP6265529B2 (ja) 2013-01-23 2018-01-24 昭和電工株式会社 磁気記録媒体の製造方法、磁気記録媒体及び磁気記録再生装置
JP6144570B2 (ja) * 2013-08-05 2017-06-07 昭和電工株式会社 磁気記録媒体の製造方法、磁気記録媒体及び磁気記録再生装置
US9461242B2 (en) 2013-09-13 2016-10-04 Micron Technology, Inc. Magnetic memory cells, methods of fabrication, semiconductor devices, memory systems, and electronic systems
US9608197B2 (en) 2013-09-18 2017-03-28 Micron Technology, Inc. Memory cells, methods of fabrication, and semiconductor devices
US10454024B2 (en) 2014-02-28 2019-10-22 Micron Technology, Inc. Memory cells, methods of fabrication, and memory devices
US9281466B2 (en) 2014-04-09 2016-03-08 Micron Technology, Inc. Memory cells, semiconductor structures, semiconductor devices, and methods of fabrication
US9269888B2 (en) * 2014-04-18 2016-02-23 Micron Technology, Inc. Memory cells, methods of fabrication, and semiconductor devices
US9349945B2 (en) 2014-10-16 2016-05-24 Micron Technology, Inc. Memory cells, semiconductor devices, and methods of fabrication
JP6399515B2 (ja) * 2014-11-26 2018-10-03 昭和電工株式会社 垂直磁気記録媒体及び磁気記録再生装置
US9818442B2 (en) * 2014-12-01 2017-11-14 WD Media, LLC Magnetic media having improved magnetic grain size distribution and intergranular segregation
US9768377B2 (en) 2014-12-02 2017-09-19 Micron Technology, Inc. Magnetic cell structures, and methods of fabrication
US10439131B2 (en) 2015-01-15 2019-10-08 Micron Technology, Inc. Methods of forming semiconductor devices including tunnel barrier materials
US20170154647A1 (en) * 2015-11-30 2017-06-01 WD Media, LLC Stacked intermediate layer for perpendicular magnetic recording media

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JP2002197630A (ja) * 2000-12-25 2002-07-12 Toshiba Corp 垂直磁気記録媒体及び磁気記録再生装置
JP2004022138A (ja) * 2002-06-19 2004-01-22 Fuji Electric Holdings Co Ltd 垂直磁気記録媒体及びその製造方法
JP2005276366A (ja) * 2004-03-25 2005-10-06 Toshiba Corp 磁気記録媒体及びそれを用いた磁気記録再生装置
JP2005353256A (ja) * 2004-05-13 2005-12-22 Fujitsu Ltd 垂直磁気記録媒体およびその製造方法、磁気記憶装置
JP2006085742A (ja) * 2004-09-14 2006-03-30 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体及びその製造方法
JP2006155865A (ja) * 2004-10-29 2006-06-15 Ken Takahashi 垂直磁気記録媒体および垂直磁気記録再生装置

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JP3822387B2 (ja) 1999-06-17 2006-09-20 株式会社東芝 磁気記録媒体
JP3665261B2 (ja) * 2000-09-01 2005-06-29 株式会社日立製作所 垂直磁気記録媒体および磁気記憶装置
JP2005190517A (ja) 2003-12-24 2005-07-14 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体及び磁気記憶装置
US20050255336A1 (en) * 2004-05-13 2005-11-17 Fujitsu Limited Perpendicular magnetic recording medium, method of producing the same, and magnetic storage device
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JP5184843B2 (ja) * 2007-08-21 2013-04-17 エイチジーエスティーネザーランドビーブイ 垂直磁気記録媒体及び磁気記憶装置

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JP2002197630A (ja) * 2000-12-25 2002-07-12 Toshiba Corp 垂直磁気記録媒体及び磁気記録再生装置
JP2004022138A (ja) * 2002-06-19 2004-01-22 Fuji Electric Holdings Co Ltd 垂直磁気記録媒体及びその製造方法
JP2005276366A (ja) * 2004-03-25 2005-10-06 Toshiba Corp 磁気記録媒体及びそれを用いた磁気記録再生装置
JP2005353256A (ja) * 2004-05-13 2005-12-22 Fujitsu Ltd 垂直磁気記録媒体およびその製造方法、磁気記憶装置
JP2006085742A (ja) * 2004-09-14 2006-03-30 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体及びその製造方法
JP2006155865A (ja) * 2004-10-29 2006-06-15 Ken Takahashi 垂直磁気記録媒体および垂直磁気記録再生装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011129241A (ja) * 2009-12-16 2011-06-30 Hitachi Global Storage Technologies Netherlands Bv 垂直型磁気記録ディスクおよび垂直型磁気記録ディスクの製造方法
JP2016201159A (ja) * 2015-04-13 2016-12-01 昭和電工株式会社 垂直磁気記録媒体及び磁気記録再生装置
US10192571B2 (en) 2015-04-13 2019-01-29 Showa Denko K.K. Perpendicular magnetic recording medium and magnetic recording and reproducing apparatus
JP2016225002A (ja) * 2015-05-29 2016-12-28 昭和電工株式会社 垂直磁気記録媒体及び磁気記録再生装置

Also Published As

Publication number Publication date
JP2009059433A (ja) 2009-03-19
US8512884B2 (en) 2013-08-20
CN101836255A (zh) 2010-09-15
CN101836255B (zh) 2011-12-07
US20110151280A1 (en) 2011-06-23
JP5397926B2 (ja) 2014-01-22

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