DE69812689T2 - Hochorientierte dünne magnetische filme, aufzeichnungsträger, wandler, mit diesen hergestellte vorrichtungen und herstellungsverfahren - Google Patents
Hochorientierte dünne magnetische filme, aufzeichnungsträger, wandler, mit diesen hergestellte vorrichtungen und herstellungsverfahren Download PDFInfo
- Publication number
- DE69812689T2 DE69812689T2 DE69812689T DE69812689T DE69812689T2 DE 69812689 T2 DE69812689 T2 DE 69812689T2 DE 69812689 T DE69812689 T DE 69812689T DE 69812689 T DE69812689 T DE 69812689T DE 69812689 T2 DE69812689 T2 DE 69812689T2
- Authority
- DE
- Germany
- Prior art keywords
- layer
- magnetic
- substrate
- crystal
- orientation
- 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.)
- Expired - Fee Related
Links
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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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
-
- 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
- G11B5/736—Non-magnetic layer under a soft magnetic layer, e.g. between a substrate and a soft magnetic underlayer [SUL] or a keeper 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
- G11B5/62—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
- G11B5/739—Magnetic recording media substrates
-
- 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
- G11B5/739—Magnetic recording media substrates
- G11B5/73911—Inorganic substrates
- G11B5/73913—Composites or coated substrates
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- 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
- G11B5/739—Magnetic recording media substrates
- G11B5/73911—Inorganic substrates
- G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
- G11B5/73919—Aluminium or titanium elemental or alloy substrates
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- 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
- G11B5/739—Magnetic recording media substrates
- G11B5/73911—Inorganic substrates
- G11B5/73921—Glass or ceramic substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
- H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
- H01F10/16—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing cobalt
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2508—Magnetic discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2525—Magneto-optical [MO] discs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12611—Oxide-containing component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Metallurgy (AREA)
- Ceramic Engineering (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
- Magnetic Heads (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/967,669 US6248416B1 (en) | 1997-11-10 | 1997-11-10 | Highly oriented magnetic thin films, recording media, transducers, devices made therefrom and methods of making |
| US967669 | 1997-11-10 | ||
| PCT/US1998/023855 WO1999024973A1 (en) | 1997-11-10 | 1998-11-09 | Highly oriented magnetic thin films, recording media, transducers, devices made therefrom and methods of making |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69812689D1 DE69812689D1 (de) | 2003-04-30 |
| DE69812689T2 true DE69812689T2 (de) | 2004-03-04 |
Family
ID=25513142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69812689T Expired - Fee Related DE69812689T2 (de) | 1997-11-10 | 1998-11-09 | Hochorientierte dünne magnetische filme, aufzeichnungsträger, wandler, mit diesen hergestellte vorrichtungen und herstellungsverfahren |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6248416B1 (enExample) |
| EP (5) | EP1308936A1 (enExample) |
| JP (1) | JP2001523032A (enExample) |
| KR (1) | KR20010031782A (enExample) |
| CN (1) | CN1285948A (enExample) |
| DE (1) | DE69812689T2 (enExample) |
| TW (1) | TW418388B (enExample) |
| WO (1) | WO1999024973A1 (enExample) |
Families Citing this family (79)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6764738B1 (en) * | 1998-02-10 | 2004-07-20 | Seagate Technology Llc | Magnetic recording medium with patterned substrate |
| US20040103422A1 (en) * | 1998-03-19 | 2004-05-27 | Seagate Technology Llc | Hybrid recording device (HRD) with magneto-resistance head on optically assisted media |
| JP2000099934A (ja) * | 1998-09-25 | 2000-04-07 | Fujitsu Ltd | 磁気記録媒体および磁気記録装置 |
| JP3665221B2 (ja) * | 1999-03-18 | 2005-06-29 | 株式会社日立グローバルストレージテクノロジーズ | 面内磁気記録媒体及び磁気記憶装置 |
| JP3549429B2 (ja) * | 1999-03-19 | 2004-08-04 | 富士通株式会社 | 磁気記録媒体及びその製造方法 |
| WO2000060583A1 (en) * | 1999-03-31 | 2000-10-12 | Hitachi, Ltd. | Magnetic recording medium and magnetic storage device |
| JP3864637B2 (ja) * | 1999-10-05 | 2007-01-10 | 富士通株式会社 | 磁気記録媒体 |
| JP2001143250A (ja) * | 1999-11-12 | 2001-05-25 | Fujitsu Ltd | 磁気記録媒体及び磁気記憶装置 |
| US6562489B2 (en) | 1999-11-12 | 2003-05-13 | Fujitsu Limited | Magnetic recording medium and magnetic storage apparatus |
| JP2001184626A (ja) * | 1999-12-24 | 2001-07-06 | Hitachi Ltd | 磁気記録媒体および磁気記憶装置 |
| JP2001222809A (ja) * | 2000-02-08 | 2001-08-17 | Toshiba Corp | 磁気記録媒体 |
| JP2001344740A (ja) * | 2000-05-26 | 2001-12-14 | Hitachi Ltd | 磁気記録媒体及び磁気記憶装置 |
| US6423431B1 (en) * | 2000-05-30 | 2002-07-23 | Maxtor Corporation | Magnetic recording media having improved magnetic and parametric performance with chromium alloy underlayer having added aluminum |
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| US4652499A (en) | 1986-04-29 | 1987-03-24 | International Business Machines | Magnetic recording medium with a chromium alloy underlayer and a cobalt-based magnetic layer |
| US4902583A (en) | 1989-03-06 | 1990-02-20 | Brucker Charles F | Thick deposited cobalt platinum magnetic film and method of fabrication thereof |
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| JPH05195118A (ja) | 1992-01-24 | 1993-08-03 | Nkk Corp | チタン製磁気ディスク基板素材 |
| WO1996032465A1 (en) * | 1995-04-10 | 1996-10-17 | Labatt Brewing Company Limited | Beer having increased light stability |
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| US5800931A (en) | 1994-09-29 | 1998-09-01 | Carnegie Mellon University | Magnetic recording medium with a MgO sputter deposited seed layer |
| US5693426A (en) * | 1994-09-29 | 1997-12-02 | Carnegie Mellon University | Magnetic recording medium with B2 structured underlayer and a cobalt-based magnetic layer |
| US5796560A (en) * | 1995-03-13 | 1998-08-18 | Kabushiki Kaisha Toshiba | Magnetoresistive head |
| JP3625336B2 (ja) * | 1995-03-13 | 2005-03-02 | 株式会社東芝 | 磁気抵抗効果ヘッド |
-
1997
- 1997-11-10 US US08/967,669 patent/US6248416B1/en not_active Expired - Lifetime
-
1998
- 1998-11-09 JP JP2000519886A patent/JP2001523032A/ja active Pending
- 1998-11-09 EP EP03001967A patent/EP1308936A1/en not_active Withdrawn
- 1998-11-09 WO PCT/US1998/023855 patent/WO1999024973A1/en not_active Ceased
- 1998-11-09 CN CN98813018A patent/CN1285948A/zh active Pending
- 1998-11-09 EP EP03002412A patent/EP1310948A1/en not_active Withdrawn
- 1998-11-09 EP EP03002468A patent/EP1310949A1/en not_active Withdrawn
- 1998-11-09 DE DE69812689T patent/DE69812689T2/de not_active Expired - Fee Related
- 1998-11-09 EP EP03002413A patent/EP1315152A1/en not_active Withdrawn
- 1998-11-09 KR KR1020007004848A patent/KR20010031782A/ko not_active Withdrawn
- 1998-11-09 EP EP98959396A patent/EP1031143B1/en not_active Expired - Lifetime
- 1998-11-10 TW TW087118665A patent/TW418388B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1285948A (zh) | 2001-02-28 |
| HK1028130A1 (en) | 2001-02-02 |
| EP1031143B1 (en) | 2003-03-26 |
| KR20010031782A (ko) | 2001-04-16 |
| TW418388B (en) | 2001-01-11 |
| EP1315152A1 (en) | 2003-05-28 |
| WO1999024973A1 (en) | 1999-05-20 |
| EP1310949A1 (en) | 2003-05-14 |
| EP1031143A1 (en) | 2000-08-30 |
| US6248416B1 (en) | 2001-06-19 |
| DE69812689D1 (de) | 2003-04-30 |
| EP1308936A1 (en) | 2003-05-07 |
| EP1310948A1 (en) | 2003-05-14 |
| JP2001523032A (ja) | 2001-11-20 |
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