| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for forming a crystallization-accelerating layer having higher precision, out of either method for reducing or eliminating a laser initialization process by laminating a material having a crystallization- accelerating effect, on a phase-change type optical disk which changes physical properties of a recording layer (between a crystal state and a noncrystal state) with heat by the laser beam irradiation, makes record marks, and utilizes the difference of reflectance of a reading laser according to the difference of the states. <P>SOLUTION: The method for manufacturing the thin film is characterized by forming the thin film having a thickness of 100 Å or less with a discharge sputtering method using a direct current having a pulsed waveform, while using a target having a specific resistance of 0.5 Ωcm or less. <P>COPYRIGHT: (C)2004,JPO |
