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为了解决长时数据存储的难题,开展了以数字格式在蓝宝石光盘表面写入数据的研究工作。根据艾林方程,分析了利用常用无机材料进行数据存储的数据失效时间。描述了在蓝宝石材料为基底的光盘上以数字格式记录数据的基本工艺流程,重点介绍了用于蓝宝石光盘的离子束刻蚀系统。实验结果显示,蓝宝石光盘表面刻蚀的信息坑宽度为0.6μm,深度为0.2μm,磁道节距为1.6μm,符合ISO/IEC 10149:1995规定的CD-ROM格式数据存储要求,表明采用本文提出的方法实现蓝宝石光盘的数字化数据存储是可行的。此外,这种基本工艺流程不仅适用于蓝宝石光盘,同样适用于其它以高度稳定的材料(如石英玻璃)作为基底的光盘。
In order to solve the problem of long-term data storage, the research work of writing data on sapphire disk in digital format has been carried out. According to Alin equation, the data failure time of data storage using common inorganic materials was analyzed. Describes the basic process flow for recording data in digital format on a sapphire-based optical disc, highlighting the ion beam etching system for sapphire discs. The experimental results show that the information pit width of sapphire disk etching is 0.6μm, the depth is 0.2μm and the track pitch is 1.6μm, which meets the data storage requirements of CD-ROM format stipulated by ISO / IEC 10149: 1995, The method to achieve sapphire compact disc digital data storage is feasible. In addition, this basic process not only applies to sapphire discs, but also to other discs made of highly stable materials such as quartz glass.