Design Consideration of Ion Implantation in Dopant Segregation Technique at NiSi/Si Interface
The impacts of drive-in annealing and ion implantation process have been experimentally analyzed for the dopant segregation method by silicide as diffusion source, which provides the design guidelines for the application of dopant segregation technique. The results illustrate that the silicide as diffusion source technique is more sensitive to the ion implantation process. By optimizing the post-implantation energy, Schottky diodes of NiSi/n-Si with large Ion/Ioff ratio up to 109 have been fabricated. The extracted electron Schottky barrier height increases to 0.92eV, which means a relative low hole Schottky barrier height of about 0.2eV, which is suitable for Schottky barrier source/drain PMOS fabrication.
Yue Guo Xia An Ru Huang Xing Zhang
Institute of Microelectronics, Peking University. Beijing 100871, China
国际会议
上海
英文
1012-1014
2010-11-01(万方平台首次上网日期,不代表论文的发表时间)