| 摘要 |
PROBLEM TO BE SOLVED: To provide a wire bonder, capable of detecting every one of bonding wires formed into abnormal loops longer than a specified length. SOLUTION: This bonder comprises a capillary 3 which has a through-hole 3a and moves along a specified route with feeding a bonding wire 4 from the through-hole 3a to form a loop of the wire 4 in a specified shape, a tension gage 1 capable of measuring the tension of the bonding wire 4 caused by contacting the bonding wire 4 to the through-hole 3a of the capillary 3 in forming the loop of the bonding wire 4, and control means for detecting an abnormality, based on the value of the tension and executing specified controls. |
