Effect of the surface roughness on the detecting capacitance

被引:5
作者
Zhang, Haifeng [1 ,2 ]
Liu, Xiaowei [1 ,2 ]
Li, Hai [2 ]
Chen, Nan [2 ]
Fu, Yibo [2 ]
机构
[1] Harbin Inst Technol, Minist Educ, Key Lab Microsyst & Microstruct Mfg, Harbin, Peoples R China
[2] Harbin Inst Technol, MEMS Ctr, Harbin, Peoples R China
来源
MICRO-NANO TECHNOLOGY XIV, PTS 1-4 | 2013年 / 562-565卷
基金
美国国家科学基金会;
关键词
surface roughness; capacitance; effect; modeling; MEMS device; INTERCONNECTS; ELECTRODES;
D O I
10.4028/www.scientific.net/KEM.562-565.1461
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
With the MEMS technology advancement, electronic devices are miniaturized at every development node. The surface roughness is affecting the detecting capacitance of MEMS device because surface to volume ratio is increasing rapidly. A novel model with one rough electrode is investigated in this paper. The impacts of surface roughness on detecting capacitance are analyzed. The image of height percentage is used to describe the surface roughness of electrode sample. The function of the surface roughness is obtained according the method of curve fitting. The effect of surface roughness on the capacitance is calculated. The results demonstrate the capacitance increases with the surface roughness.
引用
收藏
页码:1461 / +
页数:2
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