Bonder apparatus

Details Bonder apparatus Bonder apparatus

B - Operations, Transporting

23

K

26/31

B23K 37/02 (2006.01) B23K 20/00 (2006.01)

Patent

CA 1210228

BONDER APPARATUS ABSTRACT A wire bonder apparatus for use in connecting a conductor wire to a conductive element on a work piece, such as a microelectronic chip or wafer. The bonder apparatus includes a work piece support station adapted to support a work piece observable through a microscope viewing arrangement, and a bonding head having a support arm on which is mounted a bonding tool and selectively movable wire clamping arms adapted to incrementally feed a bonding wire to the bonding tool. The suppport arm is caused to undergo a ramped movement so as to effect a predetermined progressively increasing contact force between the bonding tool and the work piece. In one embodiment, the clamping arms are adapted for cooperation with actuator means so as to effect incremental stepped arcuate movement of clamping fingers along the path traversed by the conductor wire whereby to lineraly advance the bonding wire when gripped by the clamping fingers. Bonding wire supply means are selectively operable so as to maintain a desired tension in the bonding wire.

428722

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