ATE350748T1 - Magnetisches aufzeichnungsmedium und dessen herstellung - Google Patents
Magnetisches aufzeichnungsmedium und dessen herstellungInfo
- Publication number
- ATE350748T1 ATE350748T1 AT94921118T AT94921118T ATE350748T1 AT E350748 T1 ATE350748 T1 AT E350748T1 AT 94921118 T AT94921118 T AT 94921118T AT 94921118 T AT94921118 T AT 94921118T AT E350748 T1 ATE350748 T1 AT E350748T1
- Authority
- AT
- Austria
- Prior art keywords
- layer
- metallic
- recording medium
- base body
- magnetic recording
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 230000005294 ferromagnetic effect Effects 0.000 abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 238000004544 sputter deposition Methods 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000005415 magnetization Effects 0.000 abstract 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
- G11B5/62—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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from 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
- G11B5/62—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
- G11B5/62—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
-
- 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
- G11B5/7373—Non-magnetic single underlayer comprising chromium
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Metallurgy (AREA)
- Ceramic Engineering (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20104493 | 1993-07-21 | ||
JP2332694 | 1994-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE350748T1 true ATE350748T1 (de) | 2007-01-15 |
Family
ID=26360669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT94921118T ATE350748T1 (de) | 1993-07-21 | 1994-07-19 | Magnetisches aufzeichnungsmedium und dessen herstellung |
Country Status (7)
Country | Link |
---|---|
US (1) | US5853847A (de) |
EP (1) | EP0710949B1 (de) |
KR (1) | KR100418640B1 (de) |
CN (2) | CN1070305C (de) |
AT (1) | ATE350748T1 (de) |
DE (1) | DE69434907D1 (de) |
WO (1) | WO1995003603A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996027877A1 (fr) | 1995-03-08 | 1996-09-12 | Migaku Takahashi | Support d'enregistrement magnetique et son procede de fabrication |
JP3649416B2 (ja) * | 1995-11-16 | 2005-05-18 | 高橋 研 | 磁気記録媒体の製造方法 |
EP0971341A4 (de) * | 1997-03-28 | 2000-03-22 | Migaku Takahashi | Magnetisches aufzeichnungsmedium |
DE69734895T2 (de) * | 1997-03-28 | 2006-08-03 | Takahashi, Migaku, Sendai | Magnetisches aufzeichnungsmedium |
WO1998058367A1 (en) * | 1997-06-18 | 1998-12-23 | The Dow Chemical Company | A multilayer hard drive disk and method to produce same |
US6081411A (en) * | 1998-06-29 | 2000-06-27 | International Business Machines Corporation | Thin film disk media using optimum surface orientation to written data tracks |
WO2000074043A1 (fr) * | 1999-05-31 | 2000-12-07 | Migaku Takahashi | Base pour support d'enregistrement magnetique, support d'enregistrement magnetique, procede de production de cette base et enregistreur magnetique |
US6416881B1 (en) | 1999-08-10 | 2002-07-09 | Seagate Technology Llc | Media with a metal oxide sealing layer |
EP1283518A4 (de) * | 2000-03-17 | 2004-12-29 | Migaku Takahashi | Vertikal-magnetaufzeichnungsmedium und verfahren zu seiner bewertung |
JP4391010B2 (ja) * | 2000-12-27 | 2009-12-24 | 高橋 研 | 磁気記録媒体、その製造方法および磁気記録装置 |
US20030010288A1 (en) * | 2001-02-08 | 2003-01-16 | Shunpei Yamazaki | Film formation apparatus and film formation method |
SG102013A1 (en) | 2001-11-09 | 2004-02-27 | Inst Data Storage | Manufacturing method for high-density magnetic data storage media |
US7964085B1 (en) | 2002-11-25 | 2011-06-21 | Applied Materials, Inc. | Electrochemical removal of tantalum-containing materials |
JP2008078496A (ja) * | 2006-09-22 | 2008-04-03 | Mitsui Mining & Smelting Co Ltd | 酸化物含有Co系合金磁性膜、酸化物含有Co系合金ターゲットおよびその製造方法 |
JP2011248966A (ja) * | 2010-05-28 | 2011-12-08 | Wd Media (Singapore) Pte. Ltd | 垂直磁気記録媒体 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62114124A (ja) * | 1985-11-13 | 1987-05-25 | Sony Corp | 磁気デイスクの製造方法 |
JPS62234237A (ja) * | 1986-04-03 | 1987-10-14 | Seiko Epson Corp | 磁気デイスクの製造方法 |
US4792497A (en) * | 1987-01-29 | 1988-12-20 | Hitachi, Ltd. | Magnetic recording media for longitudinal recording |
EP0342966A3 (de) * | 1988-05-18 | 1990-12-27 | Sumitomo Metal Mining Company Limited | Magnetplatte |
JPH02244421A (ja) * | 1989-03-17 | 1990-09-28 | Hitachi Ltd | 薄膜磁気デイスク及びその製造方法 |
JPH0740342B2 (ja) * | 1989-04-04 | 1995-05-01 | 三菱化学株式会社 | 磁気記録媒体及びその製造方法 |
JPH04109430A (ja) * | 1990-08-29 | 1992-04-10 | Showa Alum Corp | 磁気ディスクの製造方法 |
DE69318345T2 (de) * | 1992-06-26 | 1998-11-19 | Eastman Kodak Co | Kobalt-Platin magnetischer Film und Herstellungsverfahren |
US5432012A (en) * | 1992-06-30 | 1995-07-11 | Hmt Technology Corporation | Thin-film medium with compositional gradient |
JPH07121863A (ja) * | 1993-10-20 | 1995-05-12 | Sony Corp | 磁気ディスク |
-
1994
- 1994-07-19 KR KR1019960700143A patent/KR100418640B1/ko not_active IP Right Cessation
- 1994-07-19 WO PCT/JP1994/001184 patent/WO1995003603A1/ja active IP Right Grant
- 1994-07-19 AT AT94921118T patent/ATE350748T1/de not_active IP Right Cessation
- 1994-07-19 DE DE69434907T patent/DE69434907D1/de not_active Expired - Lifetime
- 1994-07-19 US US08/591,624 patent/US5853847A/en not_active Expired - Lifetime
- 1994-07-19 EP EP94921118A patent/EP0710949B1/de not_active Expired - Lifetime
- 1994-07-19 CN CN94192845A patent/CN1070305C/zh not_active Expired - Fee Related
-
2000
- 2000-06-14 CN CN00109215A patent/CN1285585A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
KR100418640B1 (ko) | 2004-05-31 |
WO1995003603A1 (fr) | 1995-02-02 |
US5853847A (en) | 1998-12-29 |
DE69434907D1 (de) | 2007-02-15 |
EP0710949B1 (de) | 2007-01-03 |
CN1070305C (zh) | 2001-08-29 |
EP0710949A1 (de) | 1996-05-08 |
KR960704305A (ko) | 1996-08-31 |
CN1127565A (zh) | 1996-07-24 |
CN1285585A (zh) | 2001-02-28 |
EP0710949A4 (de) | 1997-05-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |