DE60216152D1 - Magnetisches aufzeichnungsmedium und magnetische speichervorrichtung - Google Patents
Magnetisches aufzeichnungsmedium und magnetische speichervorrichtungInfo
- Publication number
- DE60216152D1 DE60216152D1 DE60216152T DE60216152T DE60216152D1 DE 60216152 D1 DE60216152 D1 DE 60216152D1 DE 60216152 T DE60216152 T DE 60216152T DE 60216152 T DE60216152 T DE 60216152T DE 60216152 D1 DE60216152 D1 DE 60216152D1
- Authority
- DE
- Germany
- Prior art keywords
- magnetic
- storage device
- recording medium
- magnetic recording
- magnetic storage
- 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
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
- G11B5/62—Record carriers characterised by the selection of the material
-
- 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
- G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
-
- 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
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/656—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Co
-
- 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
- G11B5/73—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
-
- 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
- Y10T428/26—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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2002/009128 WO2004027762A1 (en) | 2002-09-06 | 2002-09-06 | Magnetic recording medium and magnetic storage apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60216152D1 true DE60216152D1 (de) | 2006-12-28 |
DE60216152T2 DE60216152T2 (de) | 2007-02-22 |
Family
ID=32012206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60216152T Expired - Fee Related DE60216152T2 (de) | 2002-09-06 | 2002-09-06 | Magnetisches aufzeichnungsmedium und magnetische speichervorrichtung |
Country Status (8)
Country | Link |
---|---|
US (1) | US7264892B2 (de) |
EP (1) | EP1481393B1 (de) |
JP (1) | JP2005526352A (de) |
KR (1) | KR100639624B1 (de) |
CN (1) | CN1620686A (de) |
AU (1) | AU2002334408A1 (de) |
DE (1) | DE60216152T2 (de) |
WO (1) | WO2004027762A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7300713B2 (en) * | 2004-10-29 | 2007-11-27 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic thin film media with an underlayer of CrMoZr, CrMoNb or CrMoMn |
JP2006134533A (ja) * | 2004-11-09 | 2006-05-25 | Fujitsu Ltd | 磁気記録媒体および磁気記憶装置 |
US20070099032A1 (en) * | 2005-11-02 | 2007-05-03 | Heraeus, Inc., A Corporation Of The State Of Arizona | Deposition of enhanced seed layer using tantalum alloy based sputter target |
US20070190364A1 (en) * | 2006-02-14 | 2007-08-16 | Heraeus, Inc. | Ruthenium alloy magnetic media and sputter targets |
JP2007257679A (ja) * | 2006-03-20 | 2007-10-04 | Fujitsu Ltd | 磁気記録媒体、その製造方法、および磁気記憶装置 |
US7541105B2 (en) * | 2006-09-25 | 2009-06-02 | Seagate Technology Llc | Epitaxial ferroelectric and magnetic recording structures including graded lattice matching layers |
US20080268292A1 (en) * | 2007-04-26 | 2008-10-30 | Heraeus, Inc. | Hexagonal close-packed ceramic seedlayers for perpendicular magnetic recording media |
US9093101B2 (en) | 2011-02-28 | 2015-07-28 | Seagate Technology Llc | Stack including a magnetic zero layer |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5536585A (en) | 1993-03-10 | 1996-07-16 | Hitachi, Ltd. | Magnetic recording medium and fabrication method therefor |
US5800931A (en) * | 1994-09-29 | 1998-09-01 | Carnegie Mellon University | Magnetic recording medium with a MgO sputter deposited seed layer |
US5866227A (en) | 1996-08-20 | 1999-02-02 | Seagate Technology, Inc. | Magnetic recording medium with partially oxidized seed layer |
US5993956A (en) * | 1997-04-22 | 1999-11-30 | Carnegie Mellon University | Manganese containing layer for magnetic recording media |
US6248416B1 (en) * | 1997-11-10 | 2001-06-19 | Carnegie Mellon University | Highly oriented magnetic thin films, recording media, transducers, devices made therefrom and methods of making |
US6348276B1 (en) * | 1998-09-25 | 2002-02-19 | Seagate Technology Llc | Magnetic recording media with a surface-oxidized nial sub-seedlayer |
US6346339B1 (en) * | 1998-09-30 | 2002-02-12 | Seagate Technology Llc | Magnetic recording media with a nialox sub-seedlayer |
JP3879362B2 (ja) | 1999-04-23 | 2007-02-14 | コニカミノルタホールディングス株式会社 | Idカードの製造方法及びその製造装置 |
US6753101B1 (en) | 1999-06-08 | 2004-06-22 | Fujitsu Limited | Magnetic recording medium, magnetic storage apparatus, recording method and method of producing magnetic recording medium |
US6645646B1 (en) | 1999-06-08 | 2003-11-11 | Fujitsu Limited | Magnetic recording medium and magnetic storage apparatus |
US6689495B1 (en) | 1999-06-08 | 2004-02-10 | Fujitsu Limited | Magnetic recording medium and magnetic storage apparatus |
US6602612B2 (en) | 1999-06-08 | 2003-08-05 | Fujitsu Limited | Magnetic recording medium and magnetic storage apparatus |
US6821652B1 (en) | 1999-06-08 | 2004-11-23 | Fujitsu Limited | Magnetic recording medium and magnetic storage apparatus |
JP3476739B2 (ja) | 1999-06-08 | 2003-12-10 | 富士通株式会社 | 磁気記録媒体 |
DE60006186T2 (de) * | 1999-06-08 | 2004-06-03 | Fujitsu Ltd., Kawasaki | Magnetaufzeichnungsmedium, Magnetspeichergerät, -aufzeichnungsmethode und Magnetaufzeichnungsmedium-Herstellungsverfahren |
US6586116B1 (en) * | 2000-02-09 | 2003-07-01 | Hitachi Global Storage Technologies Netherlands, B.V. | Nonmetallic thin film magnetic recording disk with pre-seed layer |
US6537684B1 (en) * | 2000-08-04 | 2003-03-25 | International Business Machines Corporation | Antiferromagnetically coupled magnetic recording media with boron-free first ferromagnetic film as nucleation layer |
US6623874B2 (en) * | 2000-10-06 | 2003-09-23 | Hitachi, Ltd. | Magnetic recording medium and magnetic recording apparatus |
US6849326B1 (en) * | 2000-10-10 | 2005-02-01 | Seagate Technology Llc | Niobium alloy seedlayer for magnetic recording media |
JP2002245610A (ja) | 2001-02-09 | 2002-08-30 | Trace Storage Technol Corp | 改善された上書き特徴及びsnr特徴を有する磁気記録媒体 |
US6824896B2 (en) * | 2002-01-14 | 2004-11-30 | Seagate Technology Llc | System and method for recording media on textured glass |
-
2002
- 2002-09-06 JP JP2004537498A patent/JP2005526352A/ja active Pending
- 2002-09-06 AU AU2002334408A patent/AU2002334408A1/en not_active Abandoned
- 2002-09-06 WO PCT/JP2002/009128 patent/WO2004027762A1/en active IP Right Grant
- 2002-09-06 CN CNA028280784A patent/CN1620686A/zh active Pending
- 2002-09-06 EP EP02807836A patent/EP1481393B1/de not_active Expired - Fee Related
- 2002-09-06 KR KR1020047012586A patent/KR100639624B1/ko not_active IP Right Cessation
- 2002-09-06 DE DE60216152T patent/DE60216152T2/de not_active Expired - Fee Related
-
2004
- 2004-09-08 US US10/936,005 patent/US7264892B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1481393A1 (de) | 2004-12-01 |
KR20040078697A (ko) | 2004-09-10 |
US20050069733A1 (en) | 2005-03-31 |
CN1620686A (zh) | 2005-05-25 |
EP1481393B1 (de) | 2006-11-15 |
WO2004027762A1 (en) | 2004-04-01 |
DE60216152T2 (de) | 2007-02-22 |
US7264892B2 (en) | 2007-09-04 |
JP2005526352A (ja) | 2005-09-02 |
AU2002334408A1 (en) | 2004-04-08 |
KR100639624B1 (ko) | 2006-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |