Material constants extraction for AlScN thin films using a dual mode BAW resonator

Fazel Parsapour, Vladimir Pashchenko, Pascal Nicolay, Paul Muralt

    Research output: Conference proceeding/Chapter in Book/Report/Conference Paperpeer-review

    Abstract

    Dual mode bulk acoustic wave resonators were fabricated using tilted c-axis oriented grains. In this case, longitudinal and shear modes are excited at the same time. The stiffness matrix for the tilted geometry was derived, and served to determine c 33 and c 44 from the two basic resonance frequencies. In addition, it was possible to estimate the tilting angle from the ratio of the sound velocities.
    Original languageEnglish
    Title of host publicationMaterial constants extraction for AlScN thin films using a dual mode baw resonator
    ISBN (Electronic)2160-1968
    DOIs
    Publication statusPublished - 26 Apr 2018
    Event2018 IEEE Micro Electro Mechanical Systems - Belfast, United Kingdom
    Duration: 21 Jan 201825 Jan 2018

    Conference

    Conference2018 IEEE Micro Electro Mechanical Systems
    Abbreviated titleMEMS
    Country/TerritoryUnited Kingdom
    City Belfast
    Period21/01/1825/01/18

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