JPS6417238A - Magneto-optical multi-layered film medium - Google Patents
Magneto-optical multi-layered film mediumInfo
- Publication number
- JPS6417238A JPS6417238A JP17091387A JP17091387A JPS6417238A JP S6417238 A JPS6417238 A JP S6417238A JP 17091387 A JP17091387 A JP 17091387A JP 17091387 A JP17091387 A JP 17091387A JP S6417238 A JPS6417238 A JP S6417238A
- Authority
- JP
- Japan
- Prior art keywords
- film
- nitride
- magneto
- surface part
- corrosion
- 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
Abstract
PURPOSE:To protect a recording film against oxidation and corrosion by using a film formed by coating the surface part of a nitride with the oxide of the constituting element thereof as a protective film and/or interference film. CONSTITUTION:The thin oxide film 4 is disposed on the surface part of the nitride film 1 by introducing oxygen into said part to oxidize the surface part at the time of forming the nitride. The stable film such as SiO film in the case of an SiN film and Al2O3 film in the case of an AlN film is, therefore, formed. Internal stresses are relieved by the formation of such film and the exfoliation of the film from the substrate by the deterioration with lapse of time is obviated. The magneto-optical disk which is decreased in pinholes and is extended in the life by the protective film having the high resistance to corrosion and oxidation is thereby obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17091387A JPS6417238A (en) | 1987-07-10 | 1987-07-10 | Magneto-optical multi-layered film medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17091387A JPS6417238A (en) | 1987-07-10 | 1987-07-10 | Magneto-optical multi-layered film medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6417238A true JPS6417238A (en) | 1989-01-20 |
Family
ID=15913665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17091387A Pending JPS6417238A (en) | 1987-07-10 | 1987-07-10 | Magneto-optical multi-layered film medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6417238A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6051363A (en) * | 1997-01-10 | 2000-04-18 | Tdkcorporation | Method for making an optical recording medium |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61227243A (en) * | 1985-03-30 | 1986-10-09 | Olympus Optical Co Ltd | Photomagnetic recording medium |
JPS62117156A (en) * | 1985-11-15 | 1987-05-28 | Mitsubishi Chem Ind Ltd | Photomagnetic recording medium |
JPS62192048A (en) * | 1986-02-17 | 1987-08-22 | Nec Home Electronics Ltd | Photomagnetic recording medium |
JPS63282942A (en) * | 1987-05-14 | 1988-11-18 | Oki Electric Ind Co Ltd | Magneto-optical recording medium and its production |
-
1987
- 1987-07-10 JP JP17091387A patent/JPS6417238A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61227243A (en) * | 1985-03-30 | 1986-10-09 | Olympus Optical Co Ltd | Photomagnetic recording medium |
JPS62117156A (en) * | 1985-11-15 | 1987-05-28 | Mitsubishi Chem Ind Ltd | Photomagnetic recording medium |
JPS62192048A (en) * | 1986-02-17 | 1987-08-22 | Nec Home Electronics Ltd | Photomagnetic recording medium |
JPS63282942A (en) * | 1987-05-14 | 1988-11-18 | Oki Electric Ind Co Ltd | Magneto-optical recording medium and its production |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6051363A (en) * | 1997-01-10 | 2000-04-18 | Tdkcorporation | Method for making an optical recording medium |
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