| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress variance in product quality by minimizing the influence of gas, etc., adsorbed to a substrate of polycarbonate, etc., by modifying a filming process for a recording layer in sputtering without altering facilities nor adding new facilities. <P>SOLUTION: A manufacturing method for a phase change optical recording medium including as constitution elements at least a substrate which is left in an atmosphere after resin molding, a 1st protection layer, a recording layer, a 2nd protection layer, and a reflecting heat radiation layer which are laminated on the substrate by vacuum film deposition, and a UV-setting resin layer which is deposited on the top surface side of the reflecting heat radiation layer by coating and setting is characterized in that the quality of the phase change optical recording medium is stabilized by minimizing the influence of adsorbed gas in the substrate by adjusting at least one of the sputtering electric power for the recording film laminated by the vacuum film deposition, the wait time up to the start of sputtering, and the time for which the substrate is left in the atmosphere after the resin molding. <P>COPYRIGHT: (C)2003,JPO |
