Patent ID: 8434659

Claim:
A bonding device, wherein the bonding device comprises a bonding head ( 2 ) which can be rotated about a geometric axis of rotation (D), on which a bonding tool ( 5 ) and an ultrasonic transducer ( 35 ) for ultrasonic vibration excitation of the bonding tool are disposed, the bonding tool being rotatably mounted to the ultrasonic transducer at a mounting point of a tool holder, wherein the main direction of extension ( 36 ) of the ultrasonic transducer ( 35 ) is along an axis of a minimum mass moment of inertia and extends in parallel to the geometrical axis of rotation (D) of the bonding head ( 2 ), and wherein the transducer is excited to oscillations by oscillation exciters or oscillation excitation elements, such that a wave form develops at the operating frequency that performs a fundamentally rotational movement of the mounting point of the tool and thus excites the tool in a node of its wave form to perform a transversal oscillation.