Design and optimization of a micro piezoresistive pressure sensor

Shuang Chen, Ming Quan Zhu, Bing He Ma, Wei Zheng Yuan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

45 Scopus citations

Abstract

This paper focuses the structural design and optimisation of the micro piezoresistive pressure sensor to enhance the sensitivity and linearity. Finite element method (FEM) is adopted to optimize the sensor parameters, such as the resistor location and number of turns. An absolutely type pressure sensor with 150kPa full scale span (FSS) is built based on the optimal design programme as well as the bulkmicromachined process. For an 1150-μm-wide 30-μm-thick square-shape pressure sensor, experimental results show that the sensitivity of 2.3mV/V/10kPa, linearity error of 0.57% FSS and pressure hysteresis of 0.04% FSS are achieved. The well compatibility between the results of simulation and testing certifies the validitv of the ontimized scheme.

Original languageEnglish
Title of host publication3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2008
Pages351-356
Number of pages6
DOIs
StatePublished - 2008
Event3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2008 - Sanya, China
Duration: 6 Jan 20089 Jan 2008

Publication series

Name3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS

Conference

Conference3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2008
Country/TerritoryChina
CitySanya
Period6/01/089/01/08

Keywords

  • Finite element analysis (FEA)
  • Linearity
  • Optimization
  • Piezoresistive pressure sensor (PZR pressure sensor)
  • Sensitivity

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