KR100914931B1 - 자기기록 매체 및 그 제조방법 - Google Patents
자기기록 매체 및 그 제조방법Info
- Publication number
- KR100914931B1 KR100914931B1 KR1020060125072A KR20060125072A KR100914931B1 KR 100914931 B1 KR100914931 B1 KR 100914931B1 KR 1020060125072 A KR1020060125072 A KR 1020060125072A KR 20060125072 A KR20060125072 A KR 20060125072A KR 100914931 B1 KR100914931 B1 KR 100914931B1
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic
- dot
- dots
- recording medium
- substrate
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims description 25
- 239000000696 magnetic material Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 18
- -1 CoTb Inorganic materials 0.000 claims description 6
- 229910019227 CoFeTb Inorganic materials 0.000 claims description 5
- 229910002441 CoNi Inorganic materials 0.000 claims description 5
- 229910018936 CoPd Inorganic materials 0.000 claims description 5
- 229910018979 CoPt Inorganic materials 0.000 claims description 5
- 229910015187 FePd Inorganic materials 0.000 claims description 5
- 229910005335 FePt Inorganic materials 0.000 claims description 5
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910003321 CoFe Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000009826 distribution Methods 0.000 description 10
- 239000013078 crystal Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000001127 nanoimprint lithography Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910019233 CoFeNi Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- 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
- G11B5/672—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 different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
-
- 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
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/708—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by addition of non-magnetic particles to the 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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/743—Patterned record carriers, wherein the magnetic recording layer is patterned into magnetic isolated data islands, e.g. discrete tracks
-
- 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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/743—Patterned record carriers, wherein the magnetic recording layer is patterned into magnetic isolated data islands, e.g. discrete tracks
- G11B5/746—Bit Patterned record carriers, wherein each magnetic isolated data island corresponds to a bit
-
- 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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/82—Disk 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
-
- 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
- G11B5/855—Coating only part of a support with a 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
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0026—Pulse recording
- G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface
Abstract
Description
Claims (27)
- 기판;상기 기판 상에서, 상기 기판에 접하는 하부면(bottom surface)의 면적이 상기 하부면에 대응하는 상부면(top surface)의 면적 보다 큰 복수의 자성체 도트들; 및상기 기판 상에서, 상기 자성체 도트들 사이에서 상기 자성체 도트들을 격리시키는 비자성체 영역;을 구비하며,상기 자성체 도트는, 자기 이방성 상수가 서로 다른 제1자성체와 제2자성체가 적층되어 형성되며, 상기 하부면 면적에 대한 상기 상부면 면적의 상대비가 0.1 내지 0.5인 것을 특징으로 하는 자기기록 매체.
- 기판;상기 기판 상에서, 상기 기판에 접하는 하부면(bottom surface)의 면적과 상기 하부면에 대응하는 상부면(top surface)의 면적이 서로 다른 복수의 자성체 도트들; 및상기 기판 상에서, 상기 자성체 도트들 사이에서 상기 자성체 도트들을 격리시키는 비자성체 영역;을 구비하며,상기 도트의 상부면 면적이 상기 하부면 면적 보다 큰 것을 특징으로 하는 자기기록 매체.
- 제1항 또는 제2항에 있어서,상기 도트는 각뿔대 형상(a truncated pyramide shape)인 것을 특징으로 하는 자기기록 매체.
- 삭제
- 삭제
- 삭제
- 제1항 또는 제2항에 있어서,상기 도트는 원뿔대 형상(a truncated cone shape)인 것을 특징으로 하는 자기기록 매체.
- 제 2항에 있어서,상기 도트의 상부면 면적에 대한 상기 하부면 면적의 상대비는 0.9 이하인 것을 특징으로 하는 자기기록 매체.
- 제 1항 또는 제2항에 있어서,상기 도트는 콘(cone) 형상인 것을 특징으로 하는 자기기록 매체.
- 제 1항 또는 제2항에 있어서,상기 도트 물질은 자기 이방성 상수가 105 J/m3 내지 107 J/m3인 것을 특징으로 하는 자기기록 매체.
- 제 10항에 있어서,상기 도트 물질은 CoPt, CoPd, CoNi, CoTb, FePt, FePd, CoFeTb, CoFeGd, CoFeDy, CoFeHo 및 CoFeNb로 이루어진 군에서 선택된 적어도 어느 한 물질인 것을 특징으로 하는 자기기록 매체.
- 제 2항에 있어서,상기 도트는 자기 이방성 상수가 서로 다른 제1자성체와 제2자성체가 적층되어 형성된 것을 특징으로 하는 자기기록 매체.
- 제 1항 또는 제 12항에 있어서,상기 도트는 자기 이방성 상수가 105 J/m3 내지 107 J/m3인 제1자성체가 자기 이방성 상수가 102 J/m3 내지 103 J/m3인 제2자성체 상부에 형성된 것을 특징으로 하는 자기기록 매체.
- 제 1항 또는 제 12항에 있어서,상기 도트는 자기 이방성 상수가 102 J/m3 내지 103 J/m3인 제2자성체가 자기 이방성 상수가 105 J/m3 내지 107 J/m3인 제1자성체 상부에 형성된 것을 특징으로 하는 자기기록 매체.
- 제 13항에 있어서,상기 제1자성체는 CoPt, CoPd, CoNi, CoTb, FePt, FePd, CoFeTb, CoFeGd, CoFeDy, CoFeHo 및 CoFeNb로 이루어진 군에서 선택된 적어도 어느 한 물질인 것을 특징으로 하는 자기기록 매체.
- 제 13항에 있어서,상기 제2자성체는 NiFe, CoFe, Ni, Fe, Co 및 이들의 합금 중 선택된 물질인 것을 특징으로 하는 자기기록 매체.
- 제 1항 또는 제2항에 있어서,상기 기판 및 상기 자성체 도트들 사이에 시드층(seed layer), 연자성 하지층(soft magnetic under layer) 및 중간층(intermediate layer)을 더 구비하는 것을 특징으로 하는 자기기록 매체.
- 기판 상에 주형층을 형성하는 단계;상기 주형층에 하부면의 면적이 상기 하부면에 대응하는 상부면의 면적 보다 큰 공간을 형성하는 패턴을 형성하는 단계; 및상기 공간에 자성체 물질을 채워 자성체 도트를 형성하는 단계;를 구비하며,상기 자성체 도트 형성단계는, 상기 공간에 서로 다른 자기 이방성 상수를 가지는 복수의 자성체 물질을 순차적으로 채워서 적층된 자성체 도트를 형성하되, 상기 적층된 자성체 도트는 하부면 면적에 대한 상기 자성체 도트의 상부면 면적의 상대비가 0.1 내지 0.5인 것을 특징으로 하는 자기기록 매체 제조방법.
- 기판 상에 주형층을 형성하는 단계;상기 주형층에 하부면의 면적이 상기 하부면에 대응하는 상부면의 면적이 다른 공간을 형성하는 패턴을 형성하는 단계; 및상기 공간에 자성체 물질을 채워 자성체 도트를 형성하는 단계;를 구비하며,상기 자성체 도트의 상부면 면적이 상기 하부면 면적 보다 큰 것을 특징으로 하는 자기기록 매체 제조방법.
- 제 18항 또는 제 19항에 있어서,상기 패턴을 제거하고, 상기 자성체 도트들 사이에 비자성체 물질을 채우는 단계를 더 포함하는 것을 특징으로 하는 자기기록 매체 제조방법.
- 삭제
- 제 18항 또는 제 19항에 있어서,상기 자성체 도트는 원뿔대 형상인 것을 특징으로 하는 자기기록 매체 제조방법.
- 제 18항 또는 제 19항에 있어서,상기 자성체 도트는 각뿔대 형상인 것을 특징으로 하는 자기기록 매체 제조방법.
- 삭제
- 제 18항 또는 제 19항에 있어서,상기 패턴은 상기 자성체 도트들을 서로 격리시키는 비자성체 영역인 것을 특징으로 하는 자기기록 매체 제조방법.
- 제 18항 또는 제 19항에 있어서,상기 자성체 도트는 콘 형상인 것을 특징으로 하는 자기기록 매체 제조방법.
- 제 19항에 있어서, 상기 자성체 도트를 형성하는 단계는,상기 공간에 서로 다른 자기 이방성 상수를 가지는 복수의 자성체 물질을 순차적으로 채워서 적층된 자성체 도트를 형성하는 것을 특징으로 하는 자기기록 매체 제조방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060125072A KR100914931B1 (ko) | 2006-12-08 | 2006-12-08 | 자기기록 매체 및 그 제조방법 |
US11/758,795 US20080137231A1 (en) | 2006-12-08 | 2007-06-06 | Magnetic recording medium and method of fabricating the same |
CN2007101627316A CN101197137B (zh) | 2006-12-08 | 2007-10-08 | 磁记录介质及其制造方法 |
JP2007271757A JP2008146809A (ja) | 2006-12-08 | 2007-10-18 | 磁気記録媒体及びその製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020060125072A KR100914931B1 (ko) | 2006-12-08 | 2006-12-08 | 자기기록 매체 및 그 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20080053100A KR20080053100A (ko) | 2008-06-12 |
KR100914931B1 true KR100914931B1 (ko) | 2009-08-31 |
Family
ID=39497698
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KR1020060125072A KR100914931B1 (ko) | 2006-12-08 | 2006-12-08 | 자기기록 매체 및 그 제조방법 |
Country Status (4)
Country | Link |
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US (1) | US20080137231A1 (ko) |
JP (1) | JP2008146809A (ko) |
KR (1) | KR100914931B1 (ko) |
CN (1) | CN101197137B (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009037706A (ja) * | 2007-08-02 | 2009-02-19 | Canon Inc | 構造体及びその製造方法 |
US8154813B2 (en) * | 2008-09-02 | 2012-04-10 | Seagate Technology, Llc | Embedded servo on track for bit-patterned device |
US8228636B2 (en) * | 2008-10-30 | 2012-07-24 | The Regents Of The University Of California | Apparatus, system and method for magnetic recording |
JP5030935B2 (ja) * | 2008-12-19 | 2012-09-19 | 昭和電工株式会社 | 磁気記録媒体及びその製造方法並びに記憶装置 |
US20120075747A1 (en) * | 2010-09-28 | 2012-03-29 | Hitachi Global Storage Technologies Netherlands B.V. | System, method and apparatus for shape-engineered islands of exchange spring or exchange coupled composite, bit patterned media |
TWI702294B (zh) * | 2018-07-31 | 2020-08-21 | 日商田中貴金屬工業股份有限公司 | 磁氣記錄媒體用濺鍍靶 |
Citations (2)
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JP2006012216A (ja) * | 2004-06-22 | 2006-01-12 | Toshiba Corp | 磁気記録媒体、その製造方法及び磁気記録再生装置 |
JP2006092632A (ja) * | 2004-09-22 | 2006-04-06 | Tdk Corp | 磁気記録媒体及びその製造方法並びに磁気記録媒体用中間体 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6174597B1 (en) * | 1996-07-26 | 2001-01-16 | Kabushiki Kaisha Toshiba | Magnetic recording apparatus |
JP2002358616A (ja) * | 2000-06-12 | 2002-12-13 | Toshiba Corp | 磁気記録媒体および磁気記録装置 |
US6899959B2 (en) * | 2002-02-12 | 2005-05-31 | Komag, Inc. | Magnetic media with improved exchange coupling |
CN100405468C (zh) * | 2003-09-26 | 2008-07-23 | 鸿富锦精密工业(深圳)有限公司 | 磁存储介质及其制造方法 |
US8323808B2 (en) * | 2004-01-09 | 2012-12-04 | Fuji Electric Co., Ltd. | Perpendicular magnetic recording medium |
JP4214522B2 (ja) * | 2004-01-28 | 2009-01-28 | 富士電機デバイステクノロジー株式会社 | 垂直磁気記録媒体、および、その製造方法 |
JP2005276365A (ja) * | 2004-03-25 | 2005-10-06 | Toshiba Corp | グラニュラ薄膜、垂直磁気記録媒体および磁気記録再生装置 |
US7494726B2 (en) * | 2004-07-07 | 2009-02-24 | Fuji Electric Device Technology Co., Ltd. | Perpendicular magnetic recording medium, method of manufacturing same, and magnetic recording device |
JP3796255B2 (ja) * | 2004-07-12 | 2006-07-12 | Tdk株式会社 | 磁気記録再生装置 |
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2006
- 2006-12-08 KR KR1020060125072A patent/KR100914931B1/ko active IP Right Grant
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2007
- 2007-06-06 US US11/758,795 patent/US20080137231A1/en not_active Abandoned
- 2007-10-08 CN CN2007101627316A patent/CN101197137B/zh not_active Expired - Fee Related
- 2007-10-18 JP JP2007271757A patent/JP2008146809A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006012216A (ja) * | 2004-06-22 | 2006-01-12 | Toshiba Corp | 磁気記録媒体、その製造方法及び磁気記録再生装置 |
JP2006092632A (ja) * | 2004-09-22 | 2006-04-06 | Tdk Corp | 磁気記録媒体及びその製造方法並びに磁気記録媒体用中間体 |
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CN101197137B (zh) | 2013-01-02 |
JP2008146809A (ja) | 2008-06-26 |
CN101197137A (zh) | 2008-06-11 |
US20080137231A1 (en) | 2008-06-12 |
KR20080053100A (ko) | 2008-06-12 |
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