| 摘要 |
<p>An apparatus for determining the polarities of bonding points to locate false bonding connections including an applied voltage output circuit which outputs positive and negative voltages, a switching circuit which after a wire is connected to a bonding point impresses voltage from the applied voltage output circuit to the bonding wire, a D/A converter which outputs standard positive and negative voltages, a polarity determining comparator which determines the polarity of the bonding point by comparing the voltage detected on the bonding wire with the standard voltage, and a memory which stores such a determination result for each bonding point.</p> |
