What is a “ Good Condition” capillary?
There are two (2) critical areas of which a capillary is considered “good condition”
1. The inner wall area must NOT be dirty that give “drag” to the wire feed area causing :
a) Breaking wires
b) Irregular ball formation
c) Irregular wire loop height
2. Burn mark at the tip will cause contamination to the air ball resulting in poor ball bond and second “stitch” bond. |
