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Fabrication and characterization of a high Q-factor microcantilever enhanced by lead zirconate titanate thick film

  • Quanliang Zhao*
  • , Zhongxiang Li
  • , Guangping He
  • , Maosheng Cao
  • , Dawei Wang
  • , Jiejian Di
  • *Corresponding author for this work
  • North China University of Technology
  • Beijing Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

A microcantilever actuated by 2.5-mm-thick lead zirconate titanate (PZT) film was fabricated by a bulk silicon micromachining technique and a sol-gel route. The results show that the fundamental resonant frequency is 199.63 kHz, which is similar to the theoretical result. The mechanical quality factor (Q-factor) is 799 even under standard atmospheric pressure condition. According to the analysis of energy dissipation mechanism, the PZT thick film can improve the Q-factor of the resonator due to the great effective elastic modulus and the "hard" property. These results imply that the PZT thick film could have a promising application in high Q-factor microelectromechanical devices.

Original languageEnglish
Pages (from-to)65-69
Number of pages5
JournalKuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
Volume42
Issue number1
DOIs
StatePublished - Jan 2014
Externally publishedYes

Keywords

  • Lead zirconate titanate
  • Mechanical quality factor
  • Microcantilever
  • Thick film

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