摘要
使用常规的PECVD等离子体增强化学汽相沉积)沉积技术成功地制备出具有纳米相结构的硅薄膜,并研究了以玻璃和单晶硅为衬底材料纳米硅薄膜的压阻特性.测得两种衬底材料制备的样品均有很高的压力灵敏度系数K,其值可以达到80,退火后K值会增加,电阻随压力呈良好的线性关系,但有较大滞后.并对样品的受力情况及测试结果进行了简单的分析.本文对nc-Si:H薄膜力敏器件的设计和制造将有重要的参考价值.
By employing the conventional PECVD deposition method, the nano-sized crystalline silicon films (nc-Si:H)are obtained and piezo-resistance effect of nc-Si:H on glass and silicon substrates is also studied. The resistance increases with annealing process linearly but has lag.The K values for two kinds of substrates are high and vary with annealing process.The maximum K value can reach 80.The result has significant value in designing and fabricating nc-Si:H piezo-sensitivity devices.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
1996年第1期84-87,共4页
Journal of Beijing University of Aeronautics and Astronautics
基金
航空科学基金
关键词
硅膜
界面
压力灵敏度
纳米硅
晶态比
silicon films
interfaces
pressure
sensitivity
hysteretic effeet
nano-crystalline silicon
crystalline volumefraction