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Ultrasound - wire bonding device with a device for testing a bonded joint and method for testing a by means of an ultrasound - wire bonding tool bond produced
Ultrasound - wire bonding device with a device for testing a bonded joint and method for testing a by means of an ultrasound - wire bonding tool bond produced
An ultrasonic wire bonder including apparatus for testing a bond includes a bonding tool ultrasonically driven for welding a wire on an underlying substrate and a clamp for holding the wire to be bonded by the bonding tool. The same clamp or other pulling apparatus moves the wire that has been bonded with a pre-established force to determine whether the bond will withstand the force. The accompanying method for testing a bond includes holding the wire after the bond has been made with the same holder and pulling the wire with a pre-established force substantially along the direction of the wire's longitudinal axis to determine the strength of the bond.
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