TW234760B - - Google Patents

Info

Publication number
TW234760B
TW234760B TW082103999A TW82103999A TW234760B TW 234760 B TW234760 B TW 234760B TW 082103999 A TW082103999 A TW 082103999A TW 82103999 A TW82103999 A TW 82103999A TW 234760 B TW234760 B TW 234760B
Authority
TW
Taiwan
Application number
TW082103999A
Original Assignee
Ibm
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ibm filed Critical Ibm
Application granted granted Critical
Publication of TW234760B publication Critical patent/TW234760B/zh

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
    • G11B5/73—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
    • 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
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • G11B33/148—Reducing friction, adhesion, drag
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/727—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73913—Composites or coated 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base 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
    • G11B5/84—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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12736—Al-base component
    • Y10T428/1275—Next to Group VIII or IB metal-base 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

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Physical Vapour Deposition (AREA)
  • ing And Chemical Polishing (AREA)
TW082103999A 1992-08-07 1993-05-20 TW234760B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/926,986 US5302434A (en) 1992-08-07 1992-08-07 Magnetic recording disk for contact recording

Publications (1)

Publication Number Publication Date
TW234760B true TW234760B (zh) 1994-11-21

Family

ID=25453990

Family Applications (1)

Application Number Title Priority Date Filing Date
TW082103999A TW234760B (zh) 1992-08-07 1993-05-20

Country Status (6)

Country Link
US (1) US5302434A (zh)
JP (1) JPH07122933B2 (zh)
KR (1) KR970005351B1 (zh)
CN (1) CN1062673C (zh)
MY (1) MY107917A (zh)
TW (1) TW234760B (zh)

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US6075683A (en) * 1993-04-26 2000-06-13 International Business Machines Corporation Disk drive with passive multiple fly height slider and cooperative disk pattern
JP2834392B2 (ja) * 1993-06-23 1998-12-09 ストアメディア インコーポレーテッド 金属薄膜型磁気記録媒体とその製造方法
US5589263A (en) * 1993-12-28 1996-12-31 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium having a ferromagnetic metal thin film, a dry etched layer, a carbonaceous film, and a lubricant film
US6236542B1 (en) 1994-01-21 2001-05-22 International Business Machines Corporation Substrate independent superpolishing process and slurry
WO1996027878A1 (fr) * 1995-03-08 1996-09-12 Migaku Takahashi Support d'enregistrement magnetique et procede de fabrication
US6804085B1 (en) 1995-03-21 2004-10-12 Seagate Technology, Llc Hard drive system interface between a disk surface and a transducer contacting the surface during communication
US5506017A (en) * 1995-06-07 1996-04-09 Komag Incorporated Method for texturing magnetic media
US5968679A (en) * 1995-11-28 1999-10-19 Hoya Corporation Magnetic recording medium and method of manufacturing the same
US5733370A (en) * 1996-01-16 1998-03-31 Seagate Technology, Inc. Method of manufacturing a bicrystal cluster magnetic recording medium
US5830584A (en) * 1996-01-16 1998-11-03 Seagate Technology, Inc. Bicrystal cluster magnetic recording medium
US5789090A (en) * 1996-02-05 1998-08-04 Stormedia, Inc. Metallic thin-film magnetic recording media
US5825596A (en) * 1996-02-13 1998-10-20 Kabushiki Kaisha Toshiba Hard disk drive
US6218033B1 (en) 1996-02-26 2001-04-17 Akashic Memories Corporation Magnetic recording media having CrTiX underlayers to reduce circumferential/radial anisotropy and methods for their production
US5879783A (en) * 1996-08-05 1999-03-09 Seagate Technology, Inc. Low noise magnetic recording medium and method of manufacturing
JP2856165B2 (ja) * 1996-08-12 1999-02-10 日本電気株式会社 磁気抵抗効果素子及びその製造方法
US5866227A (en) * 1996-08-20 1999-02-02 Seagate Technology, Inc. Magnetic recording medium with partially oxidized seed layer
KR100456166B1 (ko) * 1996-10-17 2004-11-09 시게이트 테크놀로지 엘엘씨 니켈 알루미늄 또는 철 알루미늄 하부층을 포함하는 자기 기록 매체 및 그 제조 방법
GB2338336B (en) 1997-01-15 2000-11-29 Seagate Technology Magnetic recording medium
US6010795A (en) * 1997-02-26 2000-01-04 Seagate Technology, Inc. Magnetic recording medium comprising a nickel aluminum or iron aluminum underlayer and chromium containing intermediate layer each having (200) dominant crystalographic orientation
US6146754A (en) * 1997-09-08 2000-11-14 Seagate Technology, Inc. Substantially isotropic magnetic recording medium comprising a seedlayer
US6165583A (en) * 1997-09-08 2000-12-26 Seagate Technology, Inc. Surface modification of magnetic recording substrates to control subsequent laser texturing
JP3803180B2 (ja) * 1997-09-25 2006-08-02 富士通株式会社 磁気記録媒体及びその製造方法ならびに磁気ディスク装置
US6174598B1 (en) * 1997-09-30 2001-01-16 Showa Denko Kabushiki Kaisha Magnetic recording medium, non-magnetic alloy film and sputtering target
US6139981A (en) * 1997-10-23 2000-10-31 Seagate Technology, Inc. Magnetic thin film medium with adhesion enhancement layer
US6117570A (en) * 1998-03-19 2000-09-12 Seagate Technology, Inc. Thin film medium with surface-oxidized NiAl seed layer
US6162532A (en) * 1998-07-31 2000-12-19 International Business Machines Corporation Magnetic storage medium formed of nanoparticles
US6348276B1 (en) 1998-09-25 2002-02-19 Seagate Technology Llc Magnetic recording media with a surface-oxidized nial sub-seedlayer
US6620531B1 (en) 1999-12-20 2003-09-16 Seagate Technology Llc Magnetic recording media with oxidized seedlayer for reduced grain size and reduced grain size distribution
US6461958B1 (en) 2000-02-04 2002-10-08 Seagate Technology Llc Polishing memory disk substrates with reclaim slurry
US6727010B2 (en) * 2000-12-27 2004-04-27 Showa Denko Kabushiki Kaisha Magnetic recording medium, production process thereof, magnetic recording and reproducing apparatus, and medium substrate
JP3473847B2 (ja) * 2001-05-11 2003-12-08 富士電機ホールディングス株式会社 磁気記録媒体およびその製造方法
US7064927B2 (en) * 2002-05-13 2006-06-20 Hitachi Global Storage Technologies Netherlands B.V. Disk, method for making it free of asperities utilizing a step of exposing a surface of the disk to a gas cluster ion beam and disk drive unit for using the disk
JP4172412B2 (ja) * 2004-04-01 2008-10-29 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体用基板及びそれを用いた垂直磁気記録媒体
US7352524B2 (en) * 2005-11-09 2008-04-01 Tdk Corporation Magnetic disk drive
US7961427B2 (en) * 2007-05-22 2011-06-14 Galleon International Corporation High performance computer hard disk drive with a carbon overcoat and method of improving hard disk performance
US8213117B2 (en) * 2010-06-04 2012-07-03 Tdk Corporation Magnetic head with protective layer and a protective film removal method for the magnetic head
US10967463B2 (en) * 2018-04-11 2021-04-06 The University Of Toledo Sn whisker growth mitigation using NiO sublayers

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501438A (zh) * 1973-05-11 1975-01-09
JPS5151908A (zh) * 1974-11-01 1976-05-07 Fuji Photo Film Co Ltd
US4167765A (en) * 1978-07-27 1979-09-11 International Business Machines Corporation Transducer suspension mount apparatus
US4621030A (en) * 1982-07-19 1986-11-04 Hitachi, Ltd. Perpendicular magnetic recording medium and manufacturing method thereof
JPS60219638A (ja) * 1984-04-16 1985-11-02 Hitachi Ltd 磁気デイスクの製造方法
US4696845A (en) * 1984-08-27 1987-09-29 Nec Corporation Magnetic storage medium with lubricating coating
JPS6196522A (ja) * 1984-10-18 1986-05-15 Seiko Epson Corp 磁気記録体の製造方法
JPS61246380A (ja) * 1985-04-23 1986-11-01 Nec Corp 磁気デイスク基板の製造方法
JP2633230B2 (ja) * 1985-09-26 1997-07-23 日本電気株式会社 磁気記憶体
JPS63140091A (ja) * 1986-12-02 1988-06-11 Kobe Steel Ltd 磁気デイスク用無電解Ｎｉ−Ｐメツキ基盤の耐食性向上方法
US5047274A (en) * 1987-09-28 1991-09-10 Noboru Tsuya Annodized aluminum substrate for a magnetic recording disk in which pores are filled with a non magnetic material and the surface polished and etched
US5041932A (en) * 1989-11-27 1991-08-20 Censtor Corp. Integrated magnetic read/write head/flexure/conductor structure

Also Published As

Publication number Publication date
JPH07122933B2 (ja) 1995-12-25
US5302434A (en) 1994-04-12
KR970005351B1 (ko) 1997-04-15
KR940002788A (ko) 1994-02-19
JPH0676279A (ja) 1994-03-18
MY107917A (en) 1996-06-29
CN1062673C (zh) 2001-02-28
CN1082750A (zh) 1994-02-23

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