DESIGN, TEST, AND MICROFABRICATION OF MEMS AND MOEMS, PTS 1 AND 2
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1999年
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3680卷
关键词:
microheater;
gas sensor;
finite-element simulation;
D O I:
10.1117/12.341164
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
We report on the design, fabrication, and characterisation of a microheater module for chemoresistive, metal-oxide semiconductor gas sensors, consisting of a dielectric stacked membrane, micromachined from bulk silicon and with an embedded polysilicon resistor heater. Fabricated structures exhibit excellent heating efficiency, requiring only 30 mW to achieve a temperature of 500 C. Measured electrothermal characteristics are in good agreement with the outcomes of 3D numerical simulations.