JPS5740757A - Manufacture of magnetic recording medium - Google Patents

Manufacture of magnetic recording medium

Info

Publication number
JPS5740757A
JPS5740757A JP11558180A JP11558180A JPS5740757A JP S5740757 A JPS5740757 A JP S5740757A JP 11558180 A JP11558180 A JP 11558180A JP 11558180 A JP11558180 A JP 11558180A JP S5740757 A JPS5740757 A JP S5740757A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
filament
vapor
ionized
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.)
Granted
Application number
JP11558180A
Other languages
Japanese (ja)
Other versions
JPS6237454B2 (en
Inventor
Masahiro Hotta
Yoshiyuki Fukumoto
Yoichi Mikami
Yoji Kono
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP11558180A priority Critical patent/JPS5740757A/en
Publication of JPS5740757A publication Critical patent/JPS5740757A/en
Publication of JPS6237454B2 publication Critical patent/JPS6237454B2/ja
Granted legal-status Critical Current

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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/851—Coating a support with a magnetic layer by sputtering

Landscapes

  • Physical Vapour Deposition (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)

Abstract

PURPOSE:To obtain a thin-film type magnetic recording medium which has superior durability, by performing ion plating under high vacuum. CONSTITUTION:A vacuum tank 1 is evacuated to >8X10<-4> Torr, and then a crucible 11 containing a ferromagnetic material 17, such as ferromagnetic metal particles, is heated through bombardment of emitted electrons from a filament 12 for thermoelectron emission to obtain vapor particles, which are ionized with accelerated thermoelectrons at a vapor ionization part equipped with a filament for thermoelectron emission and a net electron 15. Then, the ionized vapor particles are accelerated by an ion acceleration electrode 8 to strike a base material surface from a direction, crossing the lengthwise direction of the base material 5 at right angles, at an angle of incidence of 40-75 deg. to the normal line of the surface.
JP11558180A 1980-08-21 1980-08-21 Manufacture of magnetic recording medium Granted JPS5740757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11558180A JPS5740757A (en) 1980-08-21 1980-08-21 Manufacture of magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11558180A JPS5740757A (en) 1980-08-21 1980-08-21 Manufacture of magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS5740757A true JPS5740757A (en) 1982-03-06
JPS6237454B2 JPS6237454B2 (en) 1987-08-12

Family

ID=14666124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11558180A Granted JPS5740757A (en) 1980-08-21 1980-08-21 Manufacture of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5740757A (en)

Also Published As

Publication number Publication date
JPS6237454B2 (en) 1987-08-12

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