Lifted Pads on a Printed Circuit Board-WAVE SOLDERING DEFECTS
Lifted pads are rarely seen on plated through hole boards but can occur on single-sided boards during assembly. The example in Figure 1 occurred directly after wave soldering when the assembly was being handled. The adhesion of the copper foil decreases as the surface heats up so directly after soldering the copper adhesion can be low. Any handling or force applied to the components can cause lifting of the pads. Care needs to be taken when lifting boards from the conveyor or out of pallets as often large components are often used by operators as handles.
Pic. This lifted pad occurred during handling, right after wave soldering.
How to Repair Damaged Printed Circuit Board Pads
Step 1: Tidy Up the Damaged Track 1
Step 2: Tidy Up the Damaged Track 2
Step 3: Exposing the Track
Step 4: Sticking Copper Tape Over the Exposed Track
Step 5: Soldering the Copper Tape Joints
Step 6: Pierce to Make the Hole
Step 7: Solder in Your Component
Step 8: Carefully Trim the Repair
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