Abstract: An ultrasonic cleaning device includes an ultrasonic transducer (13) for providing ultrasonic energy to a propagation liquid (15), an ultrasonic propagation tube (12) for flowing the propagation liquid provided with the ultrasonic energy by the ultrasonic transducer, a holding mechanism disposed below the ultrasonic propagation tube for holding an object to be cleaned (21), and a cleaning liquid supply mechanism for supplying a cleaning liquid to a cleaning surface of the object to be cleaned held by the holding mechanism, and the ultrasonic propagation tube (12) is disposed so that a side surface thereof may contact a liquid film (19) of the cleaning liquid formed on the cleaning surface by supplying the cleaning liquid to the cleaning surface by the cleaning liquid supply mechanism.

Abstract: An ultrasonic cleaning device including an ultrasonic transducer (13) for providing ultrasonic energy to a propagation liquid (15), an ultrasonic propagation tube (12) for flowing the propagation liquid provided with the ultrasonic energy by the ultrasonic transducer, a holding mechanism disposed below the ultrasonic propagation tube for holding an object to be cleaned (21), and a cleaning liquid supply mechanism for supplying a cleaning liquid to a cleaning surface of the object to be cleaned held by the holding mechanism, and the ultrasonic propagation tube (12) is disposed so that a side surface thereof may contact a liquid film (19) of the cleaning liquid formed on the cleaning surface by supplying the cleaning liquid to the cleaning surface by the cleaning liquid supply mechanism.