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

Autor: Paul Murali, Fazel Parsapour, Pascal Nicolay, Vladimir Pashchenko
Rok vydání: 2018
Předmět:
Zdroj: 2018 IEEE Micro Electro Mechanical Systems (MEMS).
DOI: 10.1109/memsys.2018.8346667
Popis: 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.
Databáze: OpenAIRE