Applications and Devices -- MEMS-Based Thin Film and Resonant Chemical Sensors -- Microactuators Based on Thin Films -- Micromachined Ultrasonic Transducers and Acoustic Sensors Based on Piezoelectric Thin Films -- Thick-Film Piezoelectric and Magnetostrictive Devices -- Micromachined Infrared Detectors Based on Pyroelectric Thin Films -- RF Bulk Acoustic Wave Resonators and Filters -- High Freā¦