| 摘要 |
PURPOSE:To form stable pits to enhance a recording sensitivity by a method wherein an optical recording medium is formed by providing a recording film made of an alloy film mainly composed of Te and an oxide film mainly composed of Te with a specific thickness successively on a substrate. CONSTITUTION:On a substrate 1 made of polycarbonate or the like, a Teflon film 2 is provided. On the film 2, an alloy film 3 mainly composed of Te is formed as a recording film. Furthermore, the surface of the alloy film 3 is forcibly oxidized to form an oxide film 4 thereon. As the alloy film 3, for example, a Te-Se-Pb alloy is used. The oxide film 4 is formed by oxidizing Te in the alloy film 3 to TeO2. The film thickness of the oxide film 4 is 10 - 25Angstrom . The obtained optical recording medium maintains mechanical and chemical stabilities and allows a writing laser power to effectively act to form pits ; thus, a recording sensitivity and a writing speed can be enhanced. |
