| 摘要 |
PURPOSE:To provide the optical information recording medium with which recording and reproducing of information are executed at a high density and high speed and which is stable to long-time irradiation with reproducing light by providing a sputtered film and plasma polymerized film of fluorocarbon on a substrate, thereby forming undercoating layers consisting of multiple layers. CONSTITUTION:The sputtered film of the polyfluorocarbon is first formed on the substrate and in succession, the plasma polymerized film of the fluorocarbon is formed thereon, by which the undercoating layer consisting of the multiple layers are formed. The sputtered film of the polyfluorocarbon is formed by using a target of a polymer contg. fluorine, such as polytetrafluoroethylene(PTFE), copolymer of PTFE and hexafluoropropylene or polychlorofluoroethylene, and executing sputtering in an inert gas. As a result, the optical information recording medium with which the recording and reproducing of the information are executed at a high density and high speed and which is stable to the long-time irradiation with the reproducing light is obtd. |
