›› 2013, Vol. 26 ›› Issue (9): 50-.

• 论文 • 上一篇    下一篇

硅片表面粗糙度对界面态的影响

陈树华,武华,周弘毅,崔文凯,马云飞,郭霞   

  1. (北京工业大学 电子信息与控制工程学院,北京 100124)
  • 出版日期:2013-09-15 发布日期:2013-09-25
  • 作者简介:陈树华(1987—),男,硕士研究生。研究方向:硅基光电子器件。E-mail:chshh2006@126.com。郭霞(1974—),女,博士,教授,博士生导师。研究方向:光电子器件。
  • 基金资助:

    国家自然科学基金资助项目(61076048)

Influence of Silicon Surface Roughness on the Interface States

CHEN Shuhua,WU Hua,ZHOU Hongyi,CUI Wenkai,MA Yunfei,GUO Xia   

  1. (School of Electronic Information and Control Engineering,Beijing University of Technology,Beijing 100124,China)
  • Online:2013-09-15 Published:2013-09-25

摘要:

针对硅片研磨和抛光产生的亚表面损伤层会影响载流子寿命及界面态的特点,采用机械减薄、机械抛光、化学机械抛光(CMP)制备出不同粗糙度的样品。通过傅里叶红外透射谱分析和C-V 测试分析表明,粗糙度大的硅片表面因表面损伤大,具有更低的红外透射率和更高的界面态密度。

关键词: 粗糙度, 界面态, 傅里叶变换红外透射谱, C V测试

Abstract:

The sub-surface damage layer generated by grinding and polishing may effect the carrier lifetime and interface states of the silicon surface.Several samples for different roughness are fabricated by mechanical thinning,mechanical polishing and chemical mechanical polishing (CMP) processing in this paper.The Fourier transform infrared transmission spectroscopy and C-V test are used to analyze the samples.The results show that the higher the roughness of the silicon surface is,the lower the infrared transmittance and the higher density of interface states will be.

Key words: roughness;interface states;fourier transform infrared transmission spectrum;C V test

中图分类号: 

  • TN305.2