JPS5715232A - Manufacture of magnetic recording medium - Google Patents

Manufacture of magnetic recording medium

Info

Publication number
JPS5715232A
JPS5715232A JP8822880A JP8822880A JPS5715232A JP S5715232 A JPS5715232 A JP S5715232A JP 8822880 A JP8822880 A JP 8822880A JP 8822880 A JP8822880 A JP 8822880A JP S5715232 A JPS5715232 A JP S5715232A
Authority
JP
Japan
Prior art keywords
metallic
piece
alloy
metallic body
manufacture
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.)
Pending
Application number
JP8822880A
Other languages
Japanese (ja)
Inventor
Akira Takahashi
Kenji Oota
Toshihisa Deguchi
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP8822880A priority Critical patent/JPS5715232A/en
Publication of JPS5715232A publication Critical patent/JPS5715232A/en
Pending 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
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34—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
    • G11B5/84—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)
  • Physical Vapour Deposition (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)

Abstract

PURPOSE:To manufacture a magnetic recording medium by a longitudinal sputtering method which can control the composition ratio of alloy easily. CONSTITUTION:The surface 1a of a base plate 1 and the surface 2a of an alloy target 2 are arranged longitudinally, and an alloy target 2 is composed of a metallic body 3 made of transition metal, a metallic piece 4 made of rare earth metal, and a locking means which consists of a recessed part 6 for metal-piece fitting formed in the surface 3a of the metallic body 3 and a detaining plate 7 detains the metallic piece 4 to be fitted in the recessed part from the surface 3a of the metallic body 3 and locks the metallic piece on the surface side of the metallic body. Then, the base plate 1 arranged at an anode side is coverred with a thin film of magnetic alloy from the said alloy target arranged at a cathode side by a cathode sputtering method.
JP8822880A 1980-06-28 1980-06-28 Manufacture of magnetic recording medium Pending JPS5715232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8822880A JPS5715232A (en) 1980-06-28 1980-06-28 Manufacture of magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8822880A JPS5715232A (en) 1980-06-28 1980-06-28 Manufacture of magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5715232A true JPS5715232A (en) 1982-01-26

Family

ID=13937003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8822880A Pending JPS5715232A (en) 1980-06-28 1980-06-28 Manufacture of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5715232A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231703A (en) * 1975-09-05 1977-03-10 Kokusai Denshin Denwa Co Ltd <Kdd> Magnetic thin film recording medium

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231703A (en) * 1975-09-05 1977-03-10 Kokusai Denshin Denwa Co Ltd <Kdd> Magnetic thin film recording medium

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