| 摘要 |
PURPOSE:To prevent deterioration of a recording layer due to oxidation and to obtain a laser recording medium enhanced in recording sensitivity by forming a plasma-polymerized florocarbon film on a substrate and a metallic recording layer contg. Te on this film. CONSTITUTION:A substrate 1 having track servo grooves 4 are formed with plastics, such as polymethacrylate or polycarbonate, and then, a polyfluorocarbon film 2 is formed by plasma polymn. Further, a CS2 plasma polymerized film 3 contg. 90vol% Te is formed on the film 2 to obtain an optical recording layer. In another manner, a glass substrate 1 is coated with a UV hardenable resin film 5 of an acrylic or the like resin, the grooves 4 are transferred by using an Ni stamper or the like, the polyfluorocarbon film 2 is formed on the film 5, and then the recording layer 3 is formed. The film 2 prevents oxidation of the film 3 due to intrusion of moisture from the side of the substrate 1, and degradation and deterioration due to the unhardened matter and the remaining low-molecular matters of the resin film 5, and the obtained recording layer is superior in recording sensitivity and stable against the lapse of time. |
