Over the last year we have seen a number of reworked and counterfeit parts coming in - particularly BGAs. This has been rather expected of some of our 'black market' sources but lately we have seen it from our larger, more respectable vendors as well. Our reputable vendor is claiming ignorance and insisting they came right from the factory but we have a number of defects that are easily seen even w/o a scope (contamination, flat balls on BGAs, different size balls, etc). Has anyone else been having this problem?
(http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=61859)