TRANSDUCTEUR MATRICIEL ULTRASONORE, PROCÉDÉ DE PRODUCTION DE TRANSDUCTEUR MATRICIEL ULTRASONORE, SONDE ULTRASONORE ET SYSTÈME DE DIAGNOSTIC PAR ULTRASONS
[Object] To provide an ultrasonic array oscillator, a method of producing an ultrasonic array oscillator, an ultrasonic probe, and an ultrasonic diagnostic apparatus having a high impedance matching effect and excellent productivity. [Solving Means] The ultrasonic array oscillator according to the present technology includes ultrasonic oscillators (130) and semiconductor chips (140). The ultrasonic oscillators (130) form an array. The semiconductor chips (140) are bonded to the respective ultrasonic oscillators (130) to form impedance matching circuits.