JP5518449B2 - 磁気記録媒体及びその製造方法 - Google Patents
磁気記録媒体及びその製造方法 Download PDFInfo
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- JP5518449B2 JP5518449B2 JP2009274466A JP2009274466A JP5518449B2 JP 5518449 B2 JP5518449 B2 JP 5518449B2 JP 2009274466 A JP2009274466 A JP 2009274466A JP 2009274466 A JP2009274466 A JP 2009274466A JP 5518449 B2 JP5518449 B2 JP 5518449B2
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- 238000002955 isolation Methods 0.000 claims description 13
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- 229910010038 TiAl Inorganic materials 0.000 claims description 10
- 229910010069 TiCo Inorganic materials 0.000 claims description 10
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 5
- 238000004544 sputter deposition Methods 0.000 claims description 5
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- 238000001755 magnetron sputter deposition Methods 0.000 description 9
- 239000002243 precursor Substances 0.000 description 8
- 239000010409 thin film Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 150000004767 nitrides Chemical class 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000000992 sputter etching Methods 0.000 description 4
- 229910017150 AlTi Inorganic materials 0.000 description 3
- 229910052688 Gadolinium Inorganic materials 0.000 description 3
- 241000849798 Nita Species 0.000 description 3
- -1 Si3N4 Chemical compound 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000005290 antiferromagnetic effect Effects 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
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- 230000008878 coupling Effects 0.000 description 3
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- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000005361 soda-lime glass Substances 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- 229910002546 FeCo Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910001093 Zr alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
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- 229910052710 silicon Inorganic materials 0.000 description 2
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- 229910018134 Al-Mg Inorganic materials 0.000 description 1
- 229910017141 AlTa Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 229910018467 Al—Mg Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910018104 Ni-P Inorganic materials 0.000 description 1
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- 229910003087 TiOx Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
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- 230000001050 lubricating effect Effects 0.000 description 1
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- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
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- 239000010703 silicon Substances 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
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
- G11B5/855—Coating only part of a support with a magnetic layer
-
- 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
- G11B5/73—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
-
- 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
- G11B5/82—Disk carriers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
以下、図面を用いて実施例により詳細に説明する。
Claims (10)
- 基体上に直接あるいは少なくとも中間層を介して磁気記録層が形成してある磁気記録媒体において、
前記磁気記録層は、記録領域と前記記録領域を隔てる分離領域とを有するパターンドメディアであり、
Tiを含む非磁性合金層が前記分離領域に形成されており、
前記Tiを含む非磁性合金層は、TiCr合金を有し、
前記TiCr合金は、Ti組成比率が30〜70at%であることを特徴とする磁気記録媒体。 - 請求項1に記載の磁気記録媒体において、
前記TiCr合金は、Ti組成比率が40〜60at%であることを特徴とする磁気記録媒体。 - 基体上に直接あるいは少なくとも中間層を介して磁気記録層が形成してある磁気記録媒体において、
前記磁気記録層は、記録領域と前記記録領域を隔てる分離領域とを有するパターンドメディアであり、
Tiを含む非磁性合金層が前記分離領域に形成されており、
前記Tiを含む非磁性合金層は、TiAl合金を有し、
前記TiAl合金は、Ti組成比率が20〜80at%であることを特徴とする磁気記録媒体。 - 請求項3に記載の磁気記録媒体において、
前記TiAl合金は、Ti組成比率が30〜70at%であることを特徴とする磁気記録媒体。 - 基体上に直接あるいは少なくとも中間層を介して磁気記録層が形成してある磁気記録媒体において、
前記磁気記録層は、記録領域と前記記録領域を隔てる分離領域とを有するパターンドメディアであり、
Tiを含む非磁性合金層が前記分離領域に形成されており、
前記Tiを含む非磁性合金層は、TiCo合金を有し、
前記TiCo合金は、Ti組成比率が30〜70at%であることを特徴とする磁気記録媒体。 - 請求項5に記載の磁気記録媒体において、
前記TiCo合金は、Ti組成比率が40〜60at%であることを特徴とする磁気記録媒体。 - 請求項1乃至6の何れか一項に記載の磁気記録媒体において、
前記Tiを含む非磁性合金層は、Tiを含む非磁性アモルファス合金層であることを特徴とする磁気記録媒体。 - 請求項1乃至7の何れか一項に記載の磁気記録媒体の製造方法において、
前記磁気記録層を加工して前記記録領域を形成する工程と、
前記分離領域を基板バイアスを用いたスパッタリング法により形成する工程とを有することを特徴とする磁気記録媒体の製造方法。 - データの記録またはサーボ信号の記録ができる強磁性層と、前記強磁性層間に配置された分離領域とを有する磁気記録媒体において、
前記分離領域は幅が異なる複数の領域を有し、
幅が異なる複数の前記分離領域には、それぞれTiを含む非磁性合金層が形成されており、
前記Tiを含む非磁性合金層は、Ti組成比率が30〜70at%のTiCr合金層、Ti組成比率が20〜80at%のTiAl合金層、或いはTi組成比率が30〜70at%のTiCo合金層であることを特徴とする磁気記録媒体。 - データを格納するデータトラック領域と、ヘッドの位置決め制御をするサーボ領域とを備えた磁気記録媒体において、
前記データトラック領域は、第1の幅を有する第1の分離領域と前記第1の分離領域を隔てて互いに隣接し、データを記録する強磁性層とを有し、
前記サーボ領域は、第1の幅よりも大きな複数の幅を有する第2の分離領域と前記複数の幅を有する第2の分離領域を隔てて互いに隣接する強磁性層とを有し、
前記第1の分離領域及び前記第2の分離領域には、Tiを含む非磁性合金層が形成されており、
前記Tiを含む非磁性合金層は、Ti組成比率が30〜70at%のTiCr合金層、Ti組成比率が20〜80at%のTiAl合金層、或いはTi組成比率が30〜70at%のTiCo合金層であることを特徴とする磁気記録媒体。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009274466A JP5518449B2 (ja) | 2009-12-02 | 2009-12-02 | 磁気記録媒体及びその製造方法 |
| US12/917,372 US8599509B2 (en) | 2009-12-02 | 2010-11-01 | Magnetic recording medium having non-magnetic separating regions and methods of manufacturing the same |
| CN2010105567373A CN102087857A (zh) | 2009-12-02 | 2010-11-18 | 磁记录介质及其制造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009274466A JP5518449B2 (ja) | 2009-12-02 | 2009-12-02 | 磁気記録媒体及びその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2011118974A JP2011118974A (ja) | 2011-06-16 |
| JP5518449B2 true JP5518449B2 (ja) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2009274466A Expired - Fee Related JP5518449B2 (ja) | 2009-12-02 | 2009-12-02 | 磁気記録媒体及びその製造方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8599509B2 (ja) |
| JP (1) | JP5518449B2 (ja) |
| CN (1) | CN102087857A (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4929384B2 (ja) * | 2010-07-23 | 2012-05-09 | 株式会社東芝 | 磁気記録媒体 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6014296A (en) * | 1995-07-24 | 2000-01-11 | Kabushiki Kaisha Toshiba | Magnetic disk, method of manufacturing magnetic disk and magnetic recording apparatus |
| JPH0997419A (ja) | 1995-07-24 | 1997-04-08 | Toshiba Corp | 磁気ディスク、磁気ディスクの製造方法、及び磁気記録装置 |
| JP3286291B2 (ja) | 1999-02-10 | 2002-05-27 | ティーディーケイ株式会社 | 磁気記録媒体 |
| US6665145B2 (en) * | 1999-02-10 | 2003-12-16 | Tdk Corporation | Magnetic recording medium with unit minute recording portions |
| CN1176457C (zh) * | 1999-05-28 | 2004-11-17 | 富士通株式会社 | 磁存储媒体及其制造方法和磁盘设备 |
| JP3764833B2 (ja) | 1999-10-04 | 2006-04-12 | 株式会社日立グローバルストレージテクノロジーズ | 磁気記録媒体および磁気記憶装置 |
| JP2001344740A (ja) * | 2000-05-26 | 2001-12-14 | Hitachi Ltd | 磁気記録媒体及び磁気記憶装置 |
| JP4111276B2 (ja) * | 2004-02-26 | 2008-07-02 | Tdk株式会社 | 磁気記録媒体及び磁気記録再生装置 |
| JP2008159146A (ja) | 2006-12-22 | 2008-07-10 | Toshiba Corp | 磁気記録媒体及び磁気記録媒体の製造方法 |
| JP2008282512A (ja) * | 2007-05-14 | 2008-11-20 | Toshiba Corp | 磁気記録媒体及び磁気記録再生装置 |
| JP4703604B2 (ja) * | 2007-05-23 | 2011-06-15 | 株式会社東芝 | 磁気記録媒体およびその製造方法 |
| JP2009009653A (ja) * | 2007-06-28 | 2009-01-15 | Toshiba Corp | 磁気記録媒体、その製造方法および磁気記録装置 |
| JP4382843B2 (ja) * | 2007-09-26 | 2009-12-16 | 株式会社東芝 | 磁気記録媒体およびその製造方法 |
| JP2009104681A (ja) * | 2007-10-19 | 2009-05-14 | Tdk Corp | 磁気記録媒体の製造方法 |
| JP5398163B2 (ja) * | 2008-04-04 | 2014-01-29 | 昭和電工株式会社 | 磁気記録媒体及びその製造方法、並びに磁気記録再生装置 |
| WO2010013765A1 (ja) * | 2008-07-31 | 2010-02-04 | キヤノンアネルバ株式会社 | 磁気記録媒体の製造方法及び磁気記録媒体 |
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2009
- 2009-12-02 JP JP2009274466A patent/JP5518449B2/ja not_active Expired - Fee Related
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2010
- 2010-11-01 US US12/917,372 patent/US8599509B2/en active Active
- 2010-11-18 CN CN2010105567373A patent/CN102087857A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011118974A (ja) | 2011-06-16 |
| CN102087857A (zh) | 2011-06-08 |
| US8599509B2 (en) | 2013-12-03 |
| US20110128649A1 (en) | 2011-06-02 |
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