PROBLEM TO BE SOLVED: To provide an ultrasonic bonding device with which clearance between a plurality of anvils set up to a rotary body and an ultrasonic horn is individually adjusted to reduce tolerance so as to improve the quality of ultrasonic bonding.SOLUTION: The ultrasonic bonding device includes the following structure: an anvil 200 comprises a temperature adjustment mechanism 262 provided with a heat generation body which generates heat. The anvil 200 also comprises a heat transfer part 261 for transferring the heat generated from the temperature adjustment mechanism 262 to a rotary drum 110. The anvil 200 further comprises temperature sensors 270 detecting the temperature of an anvil-attached part 112a to which the anvil 200 of the rotary drum 110 is set up. The ultrasonic bonding device 100, not shown, is provided with a control unit which controls the heating temperature of the rotary drum 110 by the temperature adjustment mechanism 260. The control unit controls the amount of heat generated by the heat generation body of the temperature adjustment mechanism 262 on the basis of the result of detection by the temperature sensors 270. According to the embodiment shown in Fig.6, the temperature adjustment mechanisms 260 are each mounted on a plurality pieces of the anvils 200.COPYRIGHT: (C)2011,JPO&INPIT
