| 摘要 |
A method for manufacturing an information storage medium in which information is stored as a concave-convex pattern includes forming an inorganic-resist master disc by depositing on a substrate an inorganic resist layer reactive to thermal reaction associated with laser beam irradiation, recording on the inorganic-resist master disc by differentiating depths of thermal reaction portions in the inorganic resist layer by inputting information to be stored in the information storage medium and varying power of the laser beam striking the inorganic-resist master disc over at least three levels according to the input information, forming an information storage master disc having a concave-convex pattern in the inorganic resist layer by developing the recorded inorganic-resist master disc, forming a stamper to which the concave-convex pattern formed on the inorganic resist layer has been transferred on the basis of the information storage master disc, and forming the information storage medium using the stamper.
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