BACKGROUND:
We found the product LFSL51523328COAT use the capacitor Mfg: 593D226X9035E2TE3, date code 1515 had high failure rate.
We found the solder defect on de-wetting /non-wetting as picture below. This defect were
found after pass the selective wave machine (Ersa Wave).
We just found them and try to verify while production run quantity defect =10 from
total kit =42 boards. For the remain we will move to manual hand soldering .
They pass SMT process and didn’t found this defect all. So we would like to know
the real root cause for our reference in the future and feedback to supplier.