Spurious mode suppression via apodization for 1 GHz AlN Contour-Mode Resonators

Marco Giovannini*, Serkan Yazici, Nai Kuei Kuo, Gianluca Piazza

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

21 Scopus citations

Abstract

This paper reports, for the first time, on the application of apodization techniques to 1 GHz MEMS AlN Contour-Mode Resonators (CMRs [1]) to efficiently suppress spurious modes in close proximity of the main mechanical resonance. This concept has been applied with excellent results to a variety of one port resonators formed by patterned top electrodes made out of Aluminum, and a floating bottom electrode made out of Platinum sandwiching the AlN film. As also predicted by 3D COMSOL simulations, a complete elimination of spurious responses in the admittance plot of these resonators is attained without impacting their quality factor and electromechanical coupling coefficient.

Original languageEnglish (US)
Title of host publication2012 IEEE International Frequency Control Symposium, IFCS 2012, Proceedings
Pages650-654
Number of pages5
DOIs
StatePublished - 2012
Externally publishedYes
Event2012 66th IEEE International Frequency Control Symposium, IFCS 2012 - Baltimore, MD, United States
Duration: May 21 2012May 24 2012

Publication series

Name2012 IEEE International Frequency Control Symposium, IFCS 2012, Proceedings

Conference

Conference2012 66th IEEE International Frequency Control Symposium, IFCS 2012
Country/TerritoryUnited States
CityBaltimore, MD
Period5/21/125/24/12

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics

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