Repeatability dependence of phase‐change optical disks on morphology of protective layers
作者:
R. Chiba,
H. Yamazaki,
S. Yagi,
S. Fujimori,
期刊:
Applied Physics Letters
(AIP Available online 1990)
卷期:
Volume 56,
issue 24
页码: 2373-2375
ISSN:0003-6951
年代: 1990
DOI:10.1063/1.102919
出版商: AIP
数据来源: AIP
摘要:
The surface or the Si3N4‐sputtered protective layer of phase change optical recording media was observed with a scanning tunneling microscope. We found the morphology of the protective layer can be controlled by changing the sputtering gas conditions and that overwrite cycle repeatability strongly depends on it. As the Ar gas pressure in the sputtering chamber is decreased, the protective layers become denser and have a flatter surface, and the repeatability is improved from 3×103to 5×105. The media sensitivity also depends on the morphology of the protective layers. The causes of media deterioration after a large number of overwrite cycles are discussed
点击下载:
PDF
(256KB)
返 回