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The discovery of enhanced piezoelectricity in solid solutions of AlN and ScN is certainly one of the most important events in piezoelectric MEMS. As compared to pure AlN, it brought a crucial factor 2 to 3 improvement in a number of figures of merit governing the performance of MEMS devices. The aim of this contribution is to give a short overview on actual topics in processing, properties, and applications in RF filters and sensors.
Edoardo Charbon, Andrea Ruffino
Tobias Kippenberg, Amir Youssefi, Nick Jacob Sauerwein, Philipp Johann Uhrich