Patent ID: 6491785
Filing Date: 2002-12-10
Classification: B23K,B29C,H01L

Abstract:
An ultrasonic vibration bonding machine for bonding a plurality of members placed one upon another with ultrasonic vibration, comprising;a bonding unit including a pressure control unit having an air cylinder connected to an output end of the bonding unit and a pressure supply system for supplying pressurized air to an equilibrium chamber and a pressure chamber provided in the air cylinder; pressure setting means for setting a pressure of pressurized air to be supplied to the equilibrium chamber according to a total weight of elements connected to the pressure control unit and a pressure of the pressurized air to be supplied to the pressure chamber according to sizes and materials of the members; a resonator supported by the bonding unit; a transducer connected to the resonator and transmitting the ultrasonic vibration to the resonator; and a mounting unit having a mount table, the plurality of members being pressure held between the mount table and the resonator.