DE68910849D1 - Magnetisches Dünnschichtmedium und Verfahren zu seiner Herstellung. - Google Patents

Magnetisches Dünnschichtmedium und Verfahren zu seiner Herstellung.

Info

Publication number
DE68910849D1
DE68910849D1 DE89301352T DE68910849T DE68910849D1 DE 68910849 D1 DE68910849 D1 DE 68910849D1 DE 89301352 T DE89301352 T DE 89301352T DE 68910849 T DE68910849 T DE 68910849T DE 68910849 D1 DE68910849 D1 DE 68910849D1
Authority
DE
Germany
Prior art keywords
production
thin film
magnetic thin
film medium
medium
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
Application number
DE89301352T
Other languages
English (en)
Other versions
DE68910849T2 (de
Inventor
David Alvoid Edmonson
Peter Robert Ivett
Kenneth Edmund Johnson
Seyyed Mohammad Tag Mirzamaani
James Francis Ward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE68910849D1 publication Critical patent/DE68910849D1/de
Publication of DE68910849T2 publication Critical patent/DE68910849T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • C23C14/165—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon by cathodic sputtering
    • 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
    • G11B5/7373—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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7377—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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/851—Coating a support with a magnetic layer by sputtering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
  • Magnetic Record Carriers (AREA)
DE68910849T 1988-02-25 1989-02-13 Magnetisches Dünnschichtmedium und Verfahren zu seiner Herstellung. Expired - Fee Related DE68910849T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16005688A 1988-02-25 1988-02-25

Publications (2)

Publication Number Publication Date
DE68910849D1 true DE68910849D1 (de) 1994-01-05
DE68910849T2 DE68910849T2 (de) 1994-05-19

Family

ID=22575332

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68910849T Expired - Fee Related DE68910849T2 (de) 1988-02-25 1989-02-13 Magnetisches Dünnschichtmedium und Verfahren zu seiner Herstellung.

Country Status (3)

Country Link
EP (1) EP0330356B1 (de)
JP (1) JPH01220217A (de)
DE (1) DE68910849T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0260388A (ja) * 1988-08-26 1990-02-28 Matsushita Electric Ind Co Ltd 静止画伝送装置
JPH0648650B2 (ja) * 1990-03-07 1994-06-22 昭和電工株式会社 磁気記録媒体
JPH0536054A (ja) * 1991-07-31 1993-02-12 Nec Corp 磁気記録媒体及びその製造方法
US5605733A (en) * 1992-01-22 1997-02-25 Hitachi, Ltd. Magnetic recording medium, method for its production, and system for its use
US5746893A (en) * 1994-12-19 1998-05-05 Hoya Corporation Method of manufacturing magnetic recording medium
US6761982B2 (en) 2000-12-28 2004-07-13 Showa Denko Kabushiki Kaisha Magnetic recording medium, production process and apparatus thereof, and magnetic recording and reproducing apparatus
US6808830B2 (en) 2001-12-28 2004-10-26 Showa Denko K.K. Magnetic recording medium, production process and apparatus thereof, and magnetic recording and reproducing apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698251A (en) * 1985-01-22 1987-10-06 Victor Company Of Japan, Limited Magnetic recording medium and method of producing the same
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
JPS6316414A (ja) * 1986-07-08 1988-01-23 Mitsubishi Electric Corp 磁気記録体

Also Published As

Publication number Publication date
DE68910849T2 (de) 1994-05-19
EP0330356A1 (de) 1989-08-30
EP0330356B1 (de) 1993-11-24
JPH0524564B2 (de) 1993-04-08
JPH01220217A (ja) 1989-09-01

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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