| 摘要 |
PURPOSE:To eliminate the defective adhesion and corrosion generation of reflecting films to suppress the reflection in regions where there are no reflecting films by successively laminating the reflecting films consisting of metallic film patterns, a prescribed oxide film and a protective film on a transparent substrate. CONSTITUTION:The reflecting films 3 consisting of the metallic film patterns formed by forming a metallic film consisting of Al, etc., by an electron beam vapor deposition, etc., providing resist patterns on the film and etching the film are provided on the transparent disk-shaped substrate 1 to constitute the optical disk. The oxide film 5 formed by vapor-depositing Ti or Mg by a reactive vapor deposition method in gaseous oxygen and converting the same to titanium oxide or magnesium oxide is provided on the substrate 1 including the films 3. The protective film 6 consisting of silicon oxide, etc., is further provided on the film 5 by a sputtering method, etc. |
