JPS56127934A - Production of magnetic recording medium - Google Patents

Production of magnetic recording medium

Info

Publication number
JPS56127934A
JPS56127934A JP2961680A JP2961680A JPS56127934A JP S56127934 A JPS56127934 A JP S56127934A JP 2961680 A JP2961680 A JP 2961680A JP 2961680 A JP2961680 A JP 2961680A JP S56127934 A JPS56127934 A JP S56127934A
Authority
JP
Japan
Prior art keywords
substrate
source
electric field
frequency
frequency electric
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
JP2961680A
Other languages
Japanese (ja)
Other versions
JPS615206B2 (en
Inventor
Ryuji Sugita
Toshiaki Kunieda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2961680A priority Critical patent/JPS56127934A/en
Priority to US06/240,369 priority patent/US4399013A/en
Priority to DE8181300904T priority patent/DE3173689D1/en
Priority to EP81300904A priority patent/EP0035870B2/en
Publication of JPS56127934A publication Critical patent/JPS56127934A/en
Publication of JPS615206B2 publication Critical patent/JPS615206B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/20—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by evaporation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)

Abstract

PURPOSE:To ensure a quick formation of a vertical magnetized film on a substrate of a room temperature, by defining the area near the substrate as the positive potential to the evaporation source and at the same time carrying out a vacuum evaporation of Co and Cr while applying a high-frequency electric field. CONSTITUTION:A coil-shaped high-frequency electrode 17 is provided between the evaporation source 10 within a vacuum container 13 and the nonmagnetic substrate 2. Then the substrate 2 is set at a higher potential than the source 10 by means of the DC power source 19. On the other hand, a high-frequency electric field is applied between the high-frequency electrode 17 and the source 10 via the high-frequency power source 18. Then both Co and Cr that are evaporated from the source 10 by a heater 12 are excited by the high-frequency electric field and at the same time vacuum-evaporated on the substrate 2. In such method, a room temperature is effective for the substrate 2, and accordingly a resin film such as the polyethylene terephthalate or the like can be used for the substrate. Furthermore a high speed of several thousands Angstrom /sec is obtained to realize a vertical magnetized film that excels in a high-density recording performance.
JP2961680A 1980-03-07 1980-03-07 Production of magnetic recording medium Granted JPS56127934A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2961680A JPS56127934A (en) 1980-03-07 1980-03-07 Production of magnetic recording medium
US06/240,369 US4399013A (en) 1980-03-07 1981-03-04 Method of producing a magnetic recording medium
DE8181300904T DE3173689D1 (en) 1980-03-07 1981-03-04 Method of producing a magnetic recording medium
EP81300904A EP0035870B2 (en) 1980-03-07 1981-03-04 Method of producing a magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2961680A JPS56127934A (en) 1980-03-07 1980-03-07 Production of magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS56127934A true JPS56127934A (en) 1981-10-07
JPS615206B2 JPS615206B2 (en) 1986-02-17

Family

ID=12281000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2961680A Granted JPS56127934A (en) 1980-03-07 1980-03-07 Production of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS56127934A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0650524A (en) * 1992-07-31 1994-02-22 Masanori Nakayama Waste oil burner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0650524A (en) * 1992-07-31 1994-02-22 Masanori Nakayama Waste oil burner

Also Published As

Publication number Publication date
JPS615206B2 (en) 1986-02-17

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