| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical master disk capable of reducing defects, a molding stamper, an optical disk, and methods for manufacturing the same. <P>SOLUTION: An optical master disk 100 is configured by including a substrate member 1 in which a predetermined rugged pattern is formed, and a tungsten oxide film 2 in which 55 (atomic %)<X<60 (atomic %) and Y=100-X (atomic %) when the atomic composition percentage ratio of oxygen is defined as X and the atomic composition percentage ratio of tungsten is defined as Y. A metal layer 5 is formed on the optical master disk 100, and a molding stamper 200 is manufactured by peeling the metal layer. The molding stamper 200 is used to mold a disk substrate 6, and an optical disk 300 is manufactured by forming a reflection film 7 and a protection film 8 on the disk substrate 6. <P>COPYRIGHT: (C)2013,JPO&INPIT |
