JPS6479914A - Thin film type magnetic recording medium and production thereof - Google Patents
Thin film type magnetic recording medium and production thereofInfo
- Publication number
- JPS6479914A JPS6479914A JP23688187A JP23688187A JPS6479914A JP S6479914 A JPS6479914 A JP S6479914A JP 23688187 A JP23688187 A JP 23688187A JP 23688187 A JP23688187 A JP 23688187A JP S6479914 A JPS6479914 A JP S6479914A
- Authority
- JP
- Japan
- Prior art keywords
- film
- underlying layer
- magnetic recording
- underlying
- prescribed
- 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
Links
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To obtain a thin film type magnetic recording medium having excellent durability by laminating an underlying layer consisting of boron and hydrogen and having a specific thickness on a film and laminating a magnetic recording layer consisting of a ferromagnetic metal successively on this underlying layer. CONSTITUTION:The polyester film 1 is set so as to be moved from a raw film roll 3 of a vacuum treatment vessel 2 along the peripheral side face of a cylindrical can 4 and to be taken up on a take-up roll 5 in using a plasma CVD device. Gaseous B2H6 is then introduced at a prescribed flow rate into the treatment vessel 2 from a gas introducing pipe 6 mounted to said vessel and high-frequency electric power is impressed at a specified electric power density under the prescribed gaseous pressure to execute plasma CVD at, for example, 0.3m/min film feed speed, by which the underlying layer consisting of the boron and hydrogen is formed on the film 1. The film 1 formed with the underlying layer is in succession loaded into a vacuum deposition device, where a Co80Mi20 alloy is deposited by vacuum evaporation on the underlying layer to form a thin ferromagnetic metallic film layer 10 on the underlying B:HCVD film 11 having 50-2,000Angstrom thickness. The film is thereafter cut to a prescribed width and the magnetic tape is thus formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23688187A JPS6479914A (en) | 1987-09-21 | 1987-09-21 | Thin film type magnetic recording medium and production thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23688187A JPS6479914A (en) | 1987-09-21 | 1987-09-21 | Thin film type magnetic recording medium and production thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6479914A true JPS6479914A (en) | 1989-03-24 |
Family
ID=17007167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23688187A Pending JPS6479914A (en) | 1987-09-21 | 1987-09-21 | Thin film type magnetic recording medium and production thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6479914A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5337068A (en) * | 1989-12-22 | 1994-08-09 | David Sarnoff Research Center, Inc. | Field-sequential display system utilizing a backlit LCD pixel array and method for forming an image |
-
1987
- 1987-09-21 JP JP23688187A patent/JPS6479914A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5337068A (en) * | 1989-12-22 | 1994-08-09 | David Sarnoff Research Center, Inc. | Field-sequential display system utilizing a backlit LCD pixel array and method for forming an image |
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