soldering fault
Solder defects are faults on printed circuit boards that occur during the soldering process. Corresponding solder defects are detected by visual inspection or by test methods such as the AOI test. Soldering defects that can occur during PCB manufacture include short circuits caused by solder bridges(jumpers) between closely spaced solder points, interruptions ofconductor tracks, poor solder joints and missing contact of component connections or thermal damage during the soldering process.