Hi Group, Probably not the appropriate forum but here goes anyway.
A colleague is finding numerous problems with subtle dry joints (partial) between connectors and PCBs and is wondering if there is a way - short of new procedures in process control - that dry joints can be tested for? The specific problem is that the joints appear to be electrically sound to start with, meaning the units are getting through function test, but once exposed to endurance (lengthy) tests or worse still, actual practical use, the gremlins begin to show. The fault analysis almost invariably leads to a connector dry joint. The connectors are rated for 6A DC continuous. Any ideas how these can be picked up early or what measures you have in production to eradicate these problems? Regards - Chris Chileshe - Ultronics Ltd ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________ ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
