METHOD FOR PRODUCING WEDGE-WEDGE WIRE CONNECTION
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United States of America Patent
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app pub date -
Jan 4, 2005
filing date -
Jan 9, 2004
priority date (Note) -
Abandoned
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Abstract
A Ball-Wire Bonder can be used for the production of a wedge-wedge wire connection between first and second connection points when the tearing off of the wire takes place after production of the second wedge connection so that the piece of wire protruding out of the capillary points in the direction of the next wire connection to be made. The following steps are carried out in order to complete the wedge-wedge wire connection by tearing off the wire and to prepare the piece of wire protruding out of the capillary for producing the next wedge-wedge wire connection to be made: calculating a two-dimensional vector v lying in a horizontal plane that points from the desired impact point of the capillary on the first connection point of the next wedge-wedge wire connection to be made towards the desired impact point of the capillary on the second connection point of the next wedge-wedge wire connection to be made, and after attaching the wire to the second connection point, moving the capillary along a travel path that lies in a plane formed by the vector v and the vertical whereby the wire tears off on reaching the end of the travel path.
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