At 01:42 PM 8/16/2005 -0500, you wrote: >Further, I know that since the last run, there has been a major shakeup >at the factory, and the fellow who was in charge of process control is >gone. I don't have a ton of confidence in his replacement, but up to >this point, I hadn't seen anything directly wrong with him either. > >So: How can I that these are, or are not, contaminated? Measure leakage between two unconnected points on a board from the factory. Compare with a similar unpopulated cleaned board that they have not touched. >This will be a big issue, the factory is not going to want to hear this. Might be a change to a water-soluble flux. That's burnt a lot of people. Some no-clean is bad too. The white stuff sounds a bit like undissolved activated flux particles, though. good luck with it. >Best regards, Spehro Pefhany --"it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com ->> Inexpensive test equipment & parts http://search.ebay.com/_W0QQsassZspeff -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist