ULTRASONIC VIBRATOR AND BODY CAVITY ULTRASONOGRAPH HAVING THE ULTRASONIC VIBRATOR

摘要

A micromachined ultrasound transducer including a plurality of ultrasound transducer cells each of which includes a substrate on which a bottom electrode is formed, and a membrane provided apart from the substrate and having an upper electrode formed thereon, said ultrasound transducer generating ultrasound with the membrane vibrating when voltage is applied between the bottom electrode and the upper electrode, comprises: vibration propagation suppression means suppressing propagation of vibration of said each ultrasound transducer cell to an adjacent ultrasound transducer cell.