BOOSTING Q OF <100> ALIGNED ALN-ON-SILICON LATERALLY VIBRATING RESONATORS BY WIDE ACOUSTIC BANDGAP PHONONIC CRYSTAL ANCHORS

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

1 Scopus Citations
View graph of relations

Detail(s)

Original languageEnglish
Title of host publication2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers)
PublisherInstitute of Electrical and Electronics Engineers, Inc.
Pages1375-1378
ISBN (electronic)978-0-7381-2562-6, 978-1-6654-1267-4
ISBN (print)978-1-6654-4845-1
Publication statusPublished - 2021

Publication series

NameInternational Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS
ISSN (Print)2167-0013
ISSN (electronic)2167-0021

Conference

Title21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers 2021)
LocationVirtual
PlaceUnited States
CityOrlando
Period20 - 25 June 2021

Abstract

We demonstrate the boosting of quality factor (Q) of a <100> aligned Aluminum Nitride (AlN) on Silicon (Si) laterally vibrating resonator (LVR) by using wide acoustic bandgap (ABG) phononic crystal (PnC) anchors. To date, Q-boosting strategies have been studied predominantly for the common <110> orientation. Given the anisotropy of Si, changing orientation could notably affect the effectiveness of Q-boosting strategies. We show experimentally that Qs of <100> aligned LVRs more than doubled to 10000 with the PnC anchors. To further corroborate the effectiveness of the PnCs, we also incorporated the PnCs into delay lines with wave propagation along the <100> axis, showing that the PnCs provide large acoustic attenuation of 45 dB.

Research Area(s)

  • MEMS resonators, piezoelectric devices, anchor loss, phononic crystals, thin-film piezoelectric-on-silicon

Citation Format(s)

BOOSTING Q OF <100> ALIGNED ALN-ON-SILICON LATERALLY VIBRATING RESONATORS BY WIDE ACOUSTIC BANDGAP PHONONIC CRYSTAL ANCHORS. / Yang, Renhua; Qian, Jingui; Lee, Joshua E.-Y.
2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers). Institute of Electrical and Electronics Engineers, Inc., 2021. p. 1375-1378 (International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS).

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review