Super High-Frequency Scandium Aluminum Nitride Crystalline Film Bulk Acoustic Resonators

Mingyo Park, Jialin Wang, Rytis Dargis, Andrew Clark, Azadeh Ansari

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

29 Scopus citations

Abstract

This work presents promising results of overtone thickness resonance modes of film bulk acoustic resonators (FBARs) operating at Ku band, traditionally perceived unachievable by acoustic devices. We take advantage of the epitaxial growth of the bottom metal electrode, as well as the piezoelectric layer to improve thin-film crystal quality and hence quality factor (Q). This work is the first demonstration of a multi-GHz FBAR realized on single-crystalline Sc0.12Al0.88N/Mo stack.

Original languageEnglish (US)
Title of host publication2019 IEEE International Ultrasonics Symposium, IUS 2019
PublisherIEEE Computer Society
Pages1689-1692
Number of pages4
ISBN (Electronic)9781728145969
DOIs
StatePublished - Oct 2019
Event2019 IEEE International Ultrasonics Symposium, IUS 2019 - Glasgow, United Kingdom
Duration: Oct 6 2019Oct 9 2019

Publication series

NameIEEE International Ultrasonics Symposium, IUS
Volume2019-October
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Conference

Conference2019 IEEE International Ultrasonics Symposium, IUS 2019
Country/TerritoryUnited Kingdom
CityGlasgow
Period10/6/1910/9/19

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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