A lateral-shift-free and large-vertical-displacement electrothermal actuator for scanning micromirror/lens

L. Wu*, H. Xie

*Corresponding author for this work

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

15 Citations (Scopus)

Abstract

This paper reports the design, fabrication and characterization of a novel lateral-shift-free (LSF) large-vertical-displacement (LVD) electrothermal actuator. Both micromirror and microlens holder based on the actuator design have been fabricated by a combined surface- and bulk-micromachining process. A 0.62mm vertical displacement has been demonstrated at only 5.3Vdc for a fabricated 0.8mm by 0.8mm micromirror, and both the lateral shift (10μm) and tilting angle (0.7°) are negligible in the full displacement range. The measured resonant frequency of the vertical motion resonance mode is 453Hz.

Original languageEnglish
Title of host publicationTRANSDUCERS and EUROSENSORS '07 - 4th International Conference on Solid-State Sensors, Actuators and Microsystems
Pages1075-1078
Number of pages4
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event4th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS '07 - Lyon, France
Duration: 10 Jun 200714 Jun 2007

Publication series

NameTRANSDUCERS and EUROSENSORS '07 - 4th International Conference on Solid-State Sensors, Actuators and Microsystems

Conference

Conference4th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS '07
Country/TerritoryFrance
CityLyon
Period10/06/0714/06/07

Keywords

  • Confocal imaging
  • Electrothermal bimorph actuator
  • Large vertical displacement (LVD)
  • Lateral shift free (LSF)
  • Microlens
  • Micromirror

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