Invention Grant
US07782744B2 Systems and methods for forming a master disk utilizing variation in an applied signal power for forming uniform pits 有权
利用施加的信号功率的变化形成母盘的系统和方法,用于形成均匀的凹坑

Systems and methods for forming a master disk utilizing variation in an applied signal power for forming uniform pits
Abstract:
A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).
Information query
Patent Agency Ranking
0/0