Eradication of asymmetric spurious modes in AlN MEMS resonators using mode conversion

Anming Gao, Yansong Yang, Songbin Gong

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

Abstract

This papers reports on a spurious mode suppression technique that converts the asymmetrical (A0) mode to the intended symmetrical (S0) mode vibrations by installing a notch in aluminum nitride (AlN) laterally vibrating resonators. The technique has been experimentally validated to simultaneously eradicate the A0 spurious mode and enhance the S0 mode electromechanical coupling (kt2) for the monolithically integrated resonators over a wide frequency range (100∼600 MHz). The method described herein has overcome a major bottleneck obstructing the deployment of single-chip multi-frequency AlN resonators as a commercially viable solution for RF front-end filtering. It is also the first demonstration of complete A0 mode suppression in lamb-wave resonators with enhancement of kt2.

Original languageEnglish (US)
Title of host publicationMEMS 2016 - 29th IEEE International Conference on Micro Electro Mechanical Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages119-122
Number of pages4
ISBN (Electronic)9781509019731
DOIs
StatePublished - Feb 26 2016
Event29th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2016 - Shanghai, China
Duration: Jan 24 2016Jan 28 2016

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Volume2016-February
ISSN (Print)1084-6999

Other

Other29th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2016
Country/TerritoryChina
CityShanghai
Period1/24/161/28/16

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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