Electronics Forum | Fri Dec 09 12:05:10 EST 2005 | chunks
Are you using the machine correctly? Ya just can't slap any ol' paper in there. Or just could be a conspiracy!
Electronics Forum | Tue Dec 13 09:22:37 EST 2005 | Samir Nagaheenanajar
Okay, here it is: [url=http://www.freeimagehosting.net/][img]http://www.freeimagehosting.net/uploads/10925a8e9e.jpg[/img][/url]
Electronics Forum | Tue Dec 13 09:25:25 EST 2005 | Samir Nagaheenanajar
Image can be found at: http://www.freeimagehosting.net/uploads/10925a8e9e.jpg
Electronics Forum | Thu May 25 15:31:08 EDT 2006 | samir
H, I tried without the commaat the end http://img336.imageshack.us/my.php?image=nodule27wc.jpg Seems to work. IMO, it looks like questionable component plating and not this so-called "nodule".
Electronics Forum | Thu May 25 16:50:34 EDT 2006 | patrickbruneel
This sure doesn't look very healthy. The important things to know are A) You see this already right after reflow B) Is this showing up after the board has been in use for a while If you could answer these questions we could take it a step further. P
Electronics Forum | Fri May 26 11:44:36 EDT 2006 | H
Patrick: The image that you see was from a unit that was known to have gone through a 5-year environmental life test. However, we took another board, pre-refow, and scoped a similar device. It exhibited the same grainy component plating.
Electronics Forum | Mon Jul 07 16:30:50 EDT 2008 | realchunks
Until a billion dollar/euro machine falls from the sky from a single tin whisker and the rest of your fleet is grounded till they find out whats wrong with it. Not good for the goose but the wolves will be licking their leaded chops.
Electronics Forum | Wed Mar 04 08:25:49 EST 2009 | scottp
I don't think anyone can give you an answer until you've had some failure analysis done. Silver migration? Dendritic growth? Tin whiskers? Lots of possibilities, but you won't know without failure analysis.
Electronics Forum | Wed Apr 29 04:57:08 EDT 2009 | davepick
It depends on the application what will be considered the biggest issue to avoid (production or longterm reliability). Tin Whiskers are bit of an unknown quantity - but a more realistic problem could be dendritic growth / electromigration forming sho
Electronics Forum | Mon May 23 14:33:03 EDT 2011 | patrickbruneel
Latest news on this issue http://circuitsassembly.com/cms/news/11230-report-tin-whiskers-a-culprit-in-toyota-ua
