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硅基微结构气体传感器结构的有限元模拟分析

杨广立1, 张 彤1,2, 李春明1   

  1. 1. 吉林大学电子科学与工程学院, 长春 130023; 2. 中国科学院光机与物理研究所, 长春 130022
  • 收稿日期:2003-04-04 修回日期:1900-01-01 出版日期:2003-10-26 发布日期:2003-10-26
  • 通讯作者: 张彤

FEA Simulation and Analysis of Si-substrated Micro-Structural Gas Sensor

YANG Guang-li1, ZHANG Tong1,2, LI Chun-ming1   

  1. 1. College of Electronics Science and Engineering, Jilin University, Changchun 130023, China;2. Changchun Institute of Optics and Fine Mechanics Physics, Chinese Academy, Changchun 130022, China
  • Received:2003-04-04 Revised:1900-01-01 Online:2003-10-26 Published:2003-10-26
  • Contact: ZHANG Tong

摘要: 利用金属铂的热阻、 热敏特性, 以及SiO2和SiNx良好的绝 热、 绝缘特性, 设计一种以铂丝为加热层, 叉指状的金电极为敏感膜信号电极, SiO2和SiNx为隔热和电绝缘层的硅基微热板结构气敏元件. 并利 用有限元分析工具ANSYS, 对所设计的硅基微结构气敏元件的加热器进行了稳态过程和瞬态 过程的模拟和分析, 得到了元件表面的稳态热场分布和瞬态响应的分析结果.

关键词: 微加热器, 有限元分析, 稳态, 瞬态, 温度场, 响应时间

Abstract: Considering of the thermal resistant and sensitive char acteristics of metal platinum, as well as the heat and electricity insulating ch aracteristics of SiO2 and SiNx, we designed a kind of the Si-substrated micro structural gas sensor, which used platinum filament as heate r, gold electrodes with crossing fingers shape as sensitive film electrodes, SiO 2 and SiNx as thermal and electricity insulation. Then we simulated and analyzed the static and the transient processes of the heater of t he Si-substrated micro structural gas sensor using the finite element analysis ( FEA) tool ANSYS. The perfect results of the static temperature distributing and the transient response have been obtained.

Key words: MHP(micro-hotplate), FEA(finite element analysis), static, transie nt, temperature distributing, response time

中图分类号: 

  • TP212