Electronics Forum | Fri Jun 09 12:13:11 EDT 2006 | Chunks
Rob and Pete are both right. "We" had the same problem, with just one manufacturer of the same style QFP (don't want to name names here). We had the same style of QFP from a different manufacture right next to the problematic one on about 3 product
Electronics Forum | Sat Mar 14 09:12:59 EDT 2009 | davef
First, there is no good justification for getting solder on gold fingers. Second, it is well known that solder on gold fingers is unacceptable. So, shipping boards with that condition indicates sloppy quality practices at your CM. Third, that being
| https://www.eptac.com/solder-tips/
. Does turning up the solder pot too high cause impurities to collect on parts? Can you comment on this? Read Answer What’s with the expiration dates on solder paste or wire? Question
Surface Mount Technology Association (SMTA) | https://www.smta.org/smtai/best_papers.cfm
. Manchao Xia and Kevin J. Lawless, Indium Corporation "Prospects of Solder Paste, in Ultra Fine Pitch Era" 1992: Dennis Ostendorf, Sundstrand Aerospace "Solder Joint Reliability of Leaded and Leadless Components Mounted on Multiple Substrate Materials" 1991
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