Resonant-frequency tuning of angular vertical comb-driven microscanner

Youngkee Eun, Jongbaeg Kim, Liwei Lin

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The resonant-frequency tuning of a self-aligned angular vertical comb-driven electrostatic microscanner is demonstrated by the electromechanical spring effect. The microscanner is fabricated on a silicon-on-insulator wafer using the plastic deformation of silicon. A tuning electrode is fabricated to be electrically separated from the actuation electrode to tune the resonant frequency by adjusting the applied direct-current voltage bias. The experimentally obtained maximum resonant-frequency shift was 3.2% when the resonant frequency of 3167 Hz is reduced to 3066 Hz when a tuning voltage of 30 V was applied while maintaining the actuation voltage. The method enables facile frequency tuning without any permanent geometrical modification to the microscanner.

Original languageEnglish
Article number4
JournalMicro and Nano Systems Letters
Volume2
Issue number1
DOIs
Publication statusPublished - 2014 Dec 1

All Science Journal Classification (ASJC) codes

  • Biomaterials
  • Biomedical Engineering

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