中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

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电子与封装 ›› 2020, Vol. 20 ›› Issue (3): 030401 . doi: 10.16257/j.cnki.1681-1070.2020.0310

• 微电子制造与可靠性 • 上一篇    下一篇

氟掺杂对非晶硅薄膜特性的影响

郑若成,王印权,刘佰清,郑良晨   

  1. 中科芯集成电路有限公司,江苏 无锡 214072
  • 发布日期:2020-03-26
  • 作者简介:郑若成(1971—),男,湖北监 利人,硕士,高级工程师,1997年毕 业于武汉大学物理系半导体专业,现 从事抗辐射工艺技术研究。

Influence of Fluorine Doping on the Characteristic of Amorphous Silicon Thin Films

ZHENG Ruocheng, WANG Yinquan, LIU Baiqing, ZHENG Liangchen   

  1. China Key System &Integrated Circuit Co.,Ltd., Wuxi 214072,China
  • Published:2020-03-26

摘要: 采用电容结构研究了氟(F,Flourine)掺杂非晶薄膜漏电、击穿以及温度特性。结果表 明,氟掺杂钝化了非晶膜中的缺陷和悬挂键,使非晶薄膜漏电降低两个数量级,同时使击穿电压升 高。掺杂非晶薄膜的漏电与温度呈指数增长,增长系数为0.0375 K-1,击穿电压随温度线性减小,系 数为0.012 V·K-1

关键词: 非晶硅, 薄膜, 氟掺杂, 介电常数

Abstract: We present the result of fluorine(F) doping effect on the characteristic of amorphous thin films, including leakage current, breakdown voltage and temperature characteristic. It is observed that F doping can effectively decrease thin films leakage current and increase breakdown voltage because of passivation of dangling bond and defect by fluorine. F doping thin films leakage exponential growth with temperature, the coefficient is 0.0375 K-1, breakdown voltage linear decrease with temperature, the coefficient is 0.012 V·K-1.

Key words: amorphous silicon, thin film, fluorine doping, dielectric constant

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