PCB tracking faults can be caused at raw board manufacture, or by handling issues during assembly processes. Broken tracks can be repaired by hard wiring but this method may be deemed unsightly by the customer and is not permanent.

Gold coated copper tracking is welded between existing track ends to recreate the original circuit. The energy produced by the welding equipment causes the gold and copper to fuse together creating a bond which is as strong as (and in most cases is stronger) than the original track. The repair is then coated with a colour matched resist, cured, tested and inspected.

The diagram on the right allows you to closely inspect a repaired track - use the left and right buttons to switch between the close and wide shots.