| 摘要 |
<p>An information signal portion (1c) is structured by forming a reflecting layer (11), a first dielectric layer (12) of ZnS-SiO2, a recording layer (13) of a phase-change recording material, and a second dielectric layer (14) of ZnS-SiO2 on a replica substrate (1a) sequentially, and further forming a reaction-preventive layer (15) of Si3N4 or SiO2 on the second dielectric layer (14). A light-transmitting layer is provided by laying a light-transmitting sheet with an adhesive layer so as to cover the information signal layer (1c). If the reaction-preventive layer (15) is not provided, a reaction-preventive resin layer of an ultraviolet-curing resin is so formed as to cover the information signal portion (1c).</p> |
