Tin leaching / lead terminal discoloration on Pb-free| 24 July, 2006
We have experienced a problem with tin leaching or discoloration of lead terminals on random parts on solder side of a paste/paste operation. The profile has been used on previous production runs and there doesn't appear to be any heat damage to other components of board. The components appear to be properly tinned prior to reflow.
respond with email address for pictures of failures