Patent ID: 6367685
Filing Date: 2002-04-09
Classification: B23K,H01L

Abstract:
A wire bonding apparatus, comprising:a capillary having a lumen therein adapted to receive a bonding wire therein, said bonding wire having a ball formed on a distal end thereof extending at least partially out of said capillary; an ultrasonic transducer, coupled to said capillary and adapted to impart ultrasonic vibrational energy to said capillary; wherein said ultrasonic transducer comprises: a transducer for generating vibrational energy; a signal generator for applying drive signals to said transducer; a polygonal ultrasonic wave-propagating arm coupled to said transducer, said polygonal arm comprising a plurality of beams and at least one fixed reflection board, said beams and said at least one fixed reflection board cooperating to angularly reflect said vibrational energy such that said capillary vibrates in a substantially circular or elliptical vibration mode.