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A MEMS Pirani Vacuum Sensor with a Mesh Support Beam for Extending the Lower Limit of Vacuum Measurement

  • Jingping Qiao
  • , Ruiwen Liu
  • , Yanmei Kong
  • , Gao Bo Xu
  • , Xin Liu
  • , Yuxin Ye
  • , Xiangbin Du
  • , Zilong Wang
  • , Binbin Jiao
  • CAS - Institute of Microelectronics
  • University of Chinese Academy of Sciences
  • Zhengzhou Zhongke Integrated Circuit and System Application Research Institute
  • Xi'an Jiaotong University

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

摘要

This paper reports a novel MEMS Pirani sensor with a low thermal conductance mesh support beam for extending the lower limit of vacuum measurements. Experimental results demonstrate that the mesh support beam design reduces the solid thermal conductance of the MEMS Pirani chip by 63.67%, from 3.35 × 10−5 W/K to 1.22 × 10−5 W/K. Compared to conventional MEMS Pirani sensors, the sensitivity of the sensor employing the low-thermal-conductivity mesh-supported beam design increased from 0.019 V/Pa to 0.17 V/Pa, with an 8.9-fold improvement. And the detection lower limit of the sensor was extended to 5.83 × 10−4 Pa, attributable to the reduced solid thermal conductance of the chip. High sensitivity and ultra-low detection limits enable MEMS Pirani sensors to meet vacuum detection requirements in the semiconductor industry or industrial Internet of Things (IoT) systems.

源语言英语
主期刊名Proceedings of the 4th International Conference on Sensing, Measurement, Communication and Internet of Things Technologies
编辑Zhenyu Zhao, Peiquan Jin, Mingchuan Zhang
出版商Springer Science and Business Media Deutschland GmbH
页470-478
页数9
ISBN(印刷版)9789819582310
DOI
出版状态已出版 - 2026
活动4th International Conference on Sensing, Measurement, Communication and Internet of Things Technologies, SMC-IoT 2025 - Luoyang, 中国
期限: 28 11月 2025 → 30 11月 2025

丛书

姓名Lecture Notes in Electrical Engineering
卷1597 LNEE
ISSN(印刷版)1876-1100
ISSN(电子版)1876-1119

会议

会议4th International Conference on Sensing, Measurement, Communication and Internet of Things Technologies, SMC-IoT 2025
国家/地区中国
市Luoyang
时期28/11/25 → 30/11/25

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