Patent ID: 7644852
Filing Date: 2010-01-12
Classification: B23K,H01L

Abstract:
1. A bonding apparatus comprising: a capillary attached to a tip end of a bonding arm; a peripheral wall for forming a gas atmospheric space surrounding the capillary, the peripheral wall having an opening portion that opens on a side of the bonding arm, and a plurality of gas ejection ports in an inner wall surface that surrounds the capillary so as to enclose the capillary toward the bonding arm and faces toward the capillary; an electronic flame off probe for forming a ball at a tip end of a wire passing through the capillary, the electronic flame off probe being inserted into the gas atmospheric space from a bottom portion of the peripheral wall toward a tip end of the capillary; a supply channel for supplying a gas atmosphere, the supply channel being inserted into the gas atmospheric space from a bottom portion of the peripheral wall toward the tip end of the capillary, and the supply channel being integrally provided with the electronic flame off probe; and wherein a retracting device is attached to a positioning camera provided with a certain positional relation with respect to the bonding arm, and movable with respect to the capillary between a gas atmosphere forming position and a retracted position; the supply channel and the electronic flame off probe are provided with a predetermined fixed positional relation with respect to the peripheral wall; and the peripheral wall includes a retracting device allowing the peripheral wall to retract from the capillary.