Study on high density disk data storage using atomic force micorscopy

原子力显微镜高密度磁盘数据存储研究

基本信息

批准号：
07555081
负责人：
HANE Kazuhiro
金额：
$ 3.26万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

项目摘要

It is indespensable to develope a high density data storage since the recording of the huge information becomes important according to the progress of multimedia. The memory density of the conventional optical deta storage is limitted by the pit size which is equal to a fraction of the laser light wavelength. On the other hand, the resolution of the newly invented scanning probe microscopy is not limitted by the light wavelenght, but is dependent on the tip radius of the probe or one atom on the top of the probe. And thus, unconventionally high resolution is obtained. In addition, nanometer scale pit can be generated by the application of voltage or load to the probe.In this study, advantageously using the high resolution of the scanning probe microscopy, especially the scanning electrostatic microscopy utilizing electrostatic force, a technique to store data at very high density by generating nanometer scale pits is studied. To improve the response of the probe microscopy, the elecrostatic force is effectively used and the micromachined probe having a high resonant frequency is desined. In the recording method, a new charge strage and reding technique using semiconductor probe, in which the depression of the semiconductor tip is monitored by the chapacitance change, is proposed and demonstareted. A new tortional resonator type probe has been fabricated for high speed data starage by silicon micormachining techinique.

可以开发高密度数据存储是可以不可思议的，因为根据多媒体的进展，巨大信息的记录变得很重要。常规光学DETA存储的存储密度受到凹口大小等于激光光波长的一部分的限制。另一方面，新发明的扫描探针显微镜的分辨率不受光Wavelenght的限制，而是依赖于探针的尖端半径或探针顶部的一个原子。因此，获得了非常规的高分辨率。此外，可以通过将电压或负载施加到探测器中来产生纳米尺度坑。在这项研究中，使用扫描探针显微镜的高分辨率，尤其是利用静电力的扫描探针显微镜的高分辨率，尤其是利用静电力的扫描静电显微镜，这是一种通过生成纳米尺度的水平来存储数据的技术。为了改善探针显微镜的响应，有效地使用了电击力，并应等到具有高谐振频率的微机械探针。在录制方法中，提出并删除了使用半导体探针的新电荷曲线和重新探测技术，其中提出并删除半导体尖端的抑郁症。 Silicon Micormachining Techinique已制造了一种新的侵蚀性谐振型探针，用于高速数据星。