A novel squeezed-film damping model for MEMS comb structures

  • Alexandre Sinding
  • , Arnaud Parent
  • , Ilker E. Ocak
  • , Wajih U. Syed
  • , Aveek N. Chatterjee
  • , Christopher Welham
  • , Shuangqin Liu
  • , Jun Yan
  • , Stephen Breit
  • , Hyun Kee Chang
  • , Ibrahim Abe M. Elfadel
  • , Zouhair Sbiaa

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

2 Scopus citations

Abstract

We present the implementation and validation of a novel model for simulating comb squeezed-film damping. The model is computationally efficient regardless of finger count and optionally includes top and bottom encapsulation surfaces surrounding the fingers. Comparison with standard numerical simulation shows a difference in damping coefficient of less than 1%. One application is to predict the Q factors of resonant MEMS such as gyroscopes for which a high Q-factor ensures stable oscillations and certain magnetometers for which it amplifies the sensitivity. The model is validated against experimental Q factors of a magnetometer, predicted values are within 10% of measurement from 0.01MPa to 100Pa.

Original languageBritish English
Title of host publicationTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2095-2098
Number of pages4
ISBN (Electronic)9781538627310
DOIs
StatePublished - 26 Jul 2017
Event19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017 - Kaohsiung, Taiwan, Province of China
Duration: 18 Jun 201722 Jun 2017

Publication series

NameTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems

Conference

Conference19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017
Country/TerritoryTaiwan, Province of China
CityKaohsiung
Period18/06/1722/06/17

Keywords

  • Comb Finger
  • Damping
  • Magnetometer
  • MEMS
  • Model Validation
  • Q-Factor
  • Simulation
  • Squeezed-Film

Fingerprint

Dive into the research topics of 'A novel squeezed-film damping model for MEMS comb structures'. Together they form a unique fingerprint.

Cite this