Ultrasonic bonding hone and ultrasonic welding method

摘要

An ultrasonic bonding hone is provided with a bonding pressing surface which extends in one direction and on which ultrasonic wave energy is concentrated. The bonding pressing surface is provided with a pair of protrusions extending in parallel to the direction in which the bonding pressing surface extends on opposite sides of the bonding pressing surface spaced from each other in the direction of width of the bonding pressing surface.