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Design and fabrication of a micro-electromechanical system sandwich capacitive accelerometer

  • Xiaofeng Zhou
  • , Youling Lin
  • , Lufeng Che*
  • , Xiaolin Li
  • , Jian Wu
  • , Yuelin Wang
  • *此作品的通讯作者

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 micro-gravity MEMS sandwich capacitive accelerometer with symmetrical double-sided folded beam-mass structure. The beam-mass structure is fabricated from a single double-device-layer SOI wafer (D-SOI). The fabrication process produced proof mass with though wafer thickness (860μm) to enable formation of a larger proof mass. The suspension system of eight folded beams with highly controllable dimension suspends the proof mass from both sides. A sandwich differential capacitive accelerometer based on symmetrical double-sided folded beams-mass structure is fabricated by three-layer silicon/silicon wafer direct bonding. The resonance frequency of the developed device is measured in an open-loop system by a network analyzer. The quality factor and the resonant frequency are 18 and 830Hz, respectively. The accelerometer has a closed-loop sensitivity of 1.8V/g and a nonlinearity of 0.52% over the range of 1g.

源语言英语
主期刊名9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014
出版商Institute of Electrical and Electronics Engineers Inc.
28-31
页数4
ISBN(电子版)9781479947270
DOI
出版状态已出版 - 23 9月 2014
已对外发布
活动9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014 - Waikiki Beach, 美国
期限: 13 4月 201416 4月 2014

出版系列

姓名9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014

会议

会议9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014
国家/地区美国
Waikiki Beach
时期13/04/1416/04/14

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