Resonator, ultrasonic die bonding head, and ultrasonic die bonding apparatus

Abstract: A resonator is disclosed that may includes a vibrating member holding an electronic component and applying a vibration to the electronic component, and a depressing member applying a depressing force for a side of a substrate to the electronic component through the vibrating member. The depressing member includes leg portions which are disposed so as to leave spaces between the leg portions and both side faces of the vibrating member parallel with a vibration direction, and supporting portions through which the leg portions and the side faces of the vibrating member are to be coupled to each other. With respect to a size of a cross section of each of the supporting portions parallel with the side face of the vibrating member, a length L2 along the vibration direction A of the vibrating member is shorter than a length L1 along a depressing direction B of the depressing member.