Patent ID: 7789284

Claim:
An electronic component mounting apparatus comprising: a component holder which holds an electronic component; a pressing unit which applies pressure to the held electronic component through the component holder; and an ultrasonic transducer which applies ultrasonic vibration to the held electronic component through the component holder, wherein the component holder includes a horn to one end of which the ultrasonic transducer is fixed, and a holding tool which is fixed to the other end of the horn by a fastening unit and holds the electronic component, the horn has a first horn surface and a second horn surface at the other end, the holding tool has a first tool surface in intimate contact with the first horn surface and a second tool surface in intimate contact with the second horn surface, the fastening unit is a bolt and an internal thread, the internal thread is provided in the second horn surface, and the bolt passes through a through-hole provided in the holding tool and is screwed into the internal thread, and a screwing applies surface pressure to a connection part between the second horn surface and the second tool surface in a direction in which the applied ultrasonic vibration is transmitted.