Hi All,
Recently, we encountered strange defect at our SMT line. We can see solder ball spatter around at one of the component pad. This lead to insufficient solder defect at 1 side of the component. The other side of the component look good(Meet IPC 610 spec). This problem only happen at this 0402 chip capacitor. Others component on the motherboard do not have this problem.
Initially, we thought it was component(0402 chip capacitor) issue related. However, we still found the same problem after we used part from other supplier. This show this defect shouldn't be part related.
We believe this issue should not due to solder paste or PCB or moisture. If this were due to one of the mention factor, we should see this problem across the motherboard. However, the fact is this problem only appear on 0402 chip capacitor's one of the terminal side with solder ball spatter around it.
Very strange...Anyone experience this before?
Thanks, Jacky
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