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Presented is the configuration design for piezoresistive absolute micropressure sensors. A figure of merit called the performance factor (PF) is defined as a quantitative index to describe the comprehensive performances of a sensor including sensitivity, resonant frequency and acceleration interference. Two configurations are proposed through introducing islands and sensitive beams into the typical...
A kind of micro piezoresistive pressure sensor with stable performances under high temperature is designed based on the silicon on insulator (SOI). Through analyzing the stress distribution of diaphragm by finite element method (FEM), the model of structure was established. The fabrication operated on SOI wafer, which can be used in extreme high temperature environments, and applied the technology...
In order to solve the pressure measurement problem in the harsh environment, such as high temperature above 200degC, a special piezoresistive pressure sensor chip has been developed. Based on the MEMS (micro electro-mechanical system) and SIMOX (separation by implantation of oxygen) technology, the piezoresistive pressure sensor chip was constituted by silicon substrate, a thin buried silicon dioxide...
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