Hello all,
I know for sure this is not new for some of you but I will deeply
appreciate all your advices regarding this problem.

Up to now we have some possible causes that are specific for our process:
   Chip capacitors solderability problem
   Oven Profiling, as a fact I am using a VIP BTU Oven of 5 Zones Top and 5
   Zones bottom.

Please help me in this regarding

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