Method for producing a disk-shaped substrate and method for producing an optical disk
a aa a a A method for producing a disk-shaped substrate used for producing an optical disk includes: (a) forming a protective layer that is larger in area than the disk-shaped substrate on a surface of a transparent plate ; and (b) cutting a portion of the plate with the protective layer formed ther...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
05.09.2006
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Online Access | Get full text |
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Summary: | a aa a a A method for producing a disk-shaped substrate used for producing an optical disk includes: (a) forming a protective layer that is larger in area than the disk-shaped substrate on a surface of a transparent plate ; and (b) cutting a portion of the plate with the protective layer formed thereon other than an outer edge portion of the protective layer to form a disk shape. According to this producing method, a thin substrate can be prevented from being damaged by forming a protective layer. Furthermore, according to this producing method, a protective layer with a uniform thickness can be formed. |
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