Patent ID: 8028886

Claim:
A bonding tool, comprising: a horn which transmits an ultrasonic vibration; an ultrasonic transducer which is provided on one end of the horn, and produces the ultrasonic vibration; a heater disposition part, in which a heater is disposed, which is provided between the one end of the horn and the other end of the horn; a bonding action part which is provided between the one end of the horn and the other end of the horn, holds an electronic component, and is heated by the heater; a first cooling part, through which a fluid flows, which is provided between the heater disposition part and the one end of the horn; and a second cooling part, through which a fluid flows, which is provided between the heater disposition part and the other end of the horn, wherein the heater disposition part is a heater insertion hole which penetrates the horn in a direction that is perpendicular to a direction in which the ultrasonic vibration is transmitted, and the heater is fixed to a heater holding block with a predetermined clearance between the heater and a wall of the heater insertion hole so that the heater is not in contact with the horn, the heater holding block being disposed outside of the horn and connected to a pressing unit externally provided.