JPS5724031A - Production of vertical magnetic recording medium - Google Patents

Production of vertical magnetic recording medium

Info

Publication number
JPS5724031A
JPS5724031A JP9923180A JP9923180A JPS5724031A JP S5724031 A JPS5724031 A JP S5724031A JP 9923180 A JP9923180 A JP 9923180A JP 9923180 A JP9923180 A JP 9923180A JP S5724031 A JPS5724031 A JP S5724031A
Authority
JP
Japan
Prior art keywords
substrate
vertical magnetic
recording medium
magnetic recording
target
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
JP9923180A
Other languages
Japanese (ja)
Other versions
JPS6227453B2 (en
Inventor
Yuji Nagata
Takahisa Aoi
Norio Miyatake
Keizo Ishiwatari
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 JP9923180A priority Critical patent/JPS5724031A/en
Publication of JPS5724031A publication Critical patent/JPS5724031A/en
Publication of JPS6227453B2 publication Critical patent/JPS6227453B2/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

  • Crystals, And After-Treatments Of Crystals (AREA)
  • Physical Vapour Deposition (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)

Abstract

PURPOSE:To easily form a Co-Cr alloy thin film which excels in the vertical magnetic anisotropy, by securing the negative voltage at the side of a substrate when a high-frequency sputtering process of the Co-Cr alloy is applied on the substrate. CONSTITUTION:A substrate 2 and a target 3 of Co-Cr are distributed in opposition to each other in a vacuum chamber 1 connected to an exhaustion system 7. Then the high-frequency voltage is applied from a high-frequency power source 5 to the area between the substrate 2 and the target 3 while the negative voltage of about -10--100V is applied to the substrate 2 from a DC power source 8. Thus a sputtering process is given to Co-Cr of the target 3 to form a Co-Cr alloy thin film excellent in the magnetic anisotropy. Thus a vertical magnetic recording medium is obtained.
JP9923180A 1980-07-18 1980-07-18 Production of vertical magnetic recording medium Granted JPS5724031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9923180A JPS5724031A (en) 1980-07-18 1980-07-18 Production of vertical magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9923180A JPS5724031A (en) 1980-07-18 1980-07-18 Production of vertical magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS5724031A true JPS5724031A (en) 1982-02-08
JPS6227453B2 JPS6227453B2 (en) 1987-06-15

Family

ID=14241895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9923180A Granted JPS5724031A (en) 1980-07-18 1980-07-18 Production of vertical magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5724031A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59215025A (en) * 1983-05-21 1984-12-04 Ulvac Corp Manufacture of vertical magnetic recording body
JPS6076026A (en) * 1983-09-30 1985-04-30 Fuji Xerox Co Ltd Production of vertical magnetic recording medium
JPS62112226A (en) * 1985-11-11 1987-05-23 Sony Corp Production of vertical magnetic recording medium
JPH02161617A (en) * 1988-03-15 1990-06-21 Ulvac Corp Production of magnetic recording medium
US5945190A (en) * 1997-02-17 1999-08-31 Fujitsu Limited Magnetic recording medium and magnetic disk device
JP2007146574A (en) * 2005-11-30 2007-06-14 Noda Corp Base board and plate for building using the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59215025A (en) * 1983-05-21 1984-12-04 Ulvac Corp Manufacture of vertical magnetic recording body
JPH0352136B2 (en) * 1983-05-21 1991-08-09 Ulvac Corp
JPS6076026A (en) * 1983-09-30 1985-04-30 Fuji Xerox Co Ltd Production of vertical magnetic recording medium
JPH0321971B2 (en) * 1983-09-30 1991-03-25 Fuji Xerox Co Ltd
JPS62112226A (en) * 1985-11-11 1987-05-23 Sony Corp Production of vertical magnetic recording medium
JPH02161617A (en) * 1988-03-15 1990-06-21 Ulvac Corp Production of magnetic recording medium
JPH0450653B2 (en) * 1988-03-15 1992-08-14 Ulvac Corp
US5945190A (en) * 1997-02-17 1999-08-31 Fujitsu Limited Magnetic recording medium and magnetic disk device
JP2007146574A (en) * 2005-11-30 2007-06-14 Noda Corp Base board and plate for building using the same

Also Published As

Publication number Publication date
JPS6227453B2 (en) 1987-06-15

Similar Documents

Publication Publication Date Title
JPS5683826A (en) Vertical magnetic recording and reproducing head
ATE22752T1 (en) MAGNETRON CATHODIC SPRAYING SYSTEM.
JPS51149008A (en) Magnetic recording medium manufacturing method
EP0391258A3 (en) Magnetic recording medium and method for its production
JPS5724031A (en) Production of vertical magnetic recording medium
JPS5358206A (en) Magnetic recording medium
JPS57194255A (en) Sputtering device
JPS5720919A (en) Magnetic recording medium and its manufacture
JPS5423506A (en) Production of magnetic recording media
JPS5342009A (en) Preparation of magnetic recording medium
JPS5242703A (en) Method of producing magnetic recording media
JPS5755531A (en) Vertical magnetic recording medium
JPS54141107A (en) Magnetic recording medium
JPS5775414A (en) Manufacture of magneti substance thin film target for sputtering
JPS56145527A (en) Production of magnetic recording medium
JPS57160113A (en) High speed sputtering apparatus for ferromagnetic body
JPS57127923A (en) Magnetic recording medium
JPS52141609A (en) Magnetic recording medium and its production
JPS5591975A (en) Thin film forming method
JPS5361310A (en) Production of magnetic recording medium
JPS527710A (en) Double recorder
JPS57160114A (en) High speed sputtering apparatus for ferromagnetic body
JPS5421307A (en) Magnetic recording medium and production of the same
JPS57208630A (en) Vertical magnetic recording medium
JPS57198535A (en) Magnetic recording medium