采用近场读出系统验证PTM的真实能力  

Real ability of PTM proved by near-field readout system

作　　者：Shin Masuhara 何留玥 

机构地区：[1]索尼公司

出　　处：《记录媒体技术》2008年第2期29-32,共4页China Mediatech

摘　　要：一、前言索尼公司开发了PTM(Phase Transition Mastering,相态转换母盘刻录)工艺,用于25GB蓝光只读光盘(Blu-ray ROM)的母盘刻录。PTM工艺的特点是使用无机光刻胶,能获得比传统母盘刻录工艺更高的记录密度。首先,SEM和AFM对坑点的间接观察表明,PTM工艺能获得超乎我们预期的更高的分辨率。另一方面,近场写入和读出系统的开发也在我们实验室同步进行。This article will describe a series of experiments we conducted for the purpose of pursuing the resolution limit of the PTM process.Disc samples with different track pitches and different linear densities were prepared through the PTM process.The signal properties of these discs were analyzed with the assistance of a near field readout system.The jitter value was 5.6% at the linear density of 7Onm/bit and 0.16μm track pitch,which corresponded to 80GB per 12cm diameter disc.Even at a recording density corresponding to a capacity of 100GB we observed jitter values less than 10%.

关 键 词：读出系统 PTM 无机光刻胶 记录密度 只读光盘 母盘 相变光盘 刻录机 间接观察 浸没透镜 

分 类 号：TP333.4[自动化与计算机技术—计算机系统结构]