Electronics Forum | Tue Mar 26 06:07:58 EDT 2019 | pooja_4t
Hi i am referring Tin whisker report JESD201A class 2 standard from Vishay. i can see at TC -55/85C using pbfree reflow there are 0 growth at 500&1000 cycles. for snpb reflow and the same temperature and same cycle significant growth can be found. my
Electronics Forum | Thu May 11 13:28:49 EDT 2006 | patrickbruneel
Being a typically efficient Swiss based company Swatch started the task of RoHS conversion a year ago. After 2 years of intensive research they implemented the process in mass production in June 2005, they started shipping and found massive problem
Electronics Forum | Tue Feb 03 21:36:29 EST 2009 | davef
NASA gets itself in a froth about the potental for whisker growth in high tin solders used in space applications.
Electronics Forum | Tue Oct 11 14:42:15 EDT 2005 | patrickbruneel
NASA website on Tin whiskers: http://nepp.nasa.gov/whisker/ NEMI Tin whisker activities: http://www.inemi.org/cms/projects/ese/tin_whisker_activities.html CALCE Tin Whisker Working Group: http://www.calce.umd.edu/lead-free/tin-whiskers/ Measur
Electronics Forum | Sun Dec 13 08:49:15 EST 1998 | Ron Costa
Has anyone had any experience with using this alternative plating process? Some board houses are pushing toward this plating. Is there any long term data on this process? Any problems experienced with smt and thru-hole? I've heard tin whiskers to be
Electronics Forum | Tue Aug 22 11:17:04 EDT 2000 | Dr. Ning-Cheng Lee
The classic dilemma, cost vs. performance. In typical applications, Sn whisker growth is not an issue. It only seems to occur under extreme use (high stress, low temperature)conditions. Until this issue is fully addressed, Pd seems to be the favor
Electronics Forum | Fri Aug 29 10:23:30 EDT 2008 | vladig
Everyone has been playing a guess game so far :-) but we don't even know what the lead finish is:-) Even old (Sn-Pb finish) days, the ammount of Pb in the plating would be on a single digit level (just to mitigate Sn-whiskers growth), meaning that th
Electronics Forum | Tue Sep 16 16:03:43 EDT 2008 | vladig
Well, typical content of Pb in Sn/Pb polating is a few percent (just to mitigate Sn whiskers growth). Therefore, the lead finished with SAC305 won't be much different from those finished with Sn/Pb. You can make one or two cross-sections for sanity c
Electronics Forum | Thu Sep 11 11:34:52 EDT 2008 | patrickbruneel
Interesting observation Manuel. I will be blamed again for crying wolf but look below a lot more defects will soon see the daylight all related to lead-free. This information was posted at the tin whisker forum by Bob Landman of H&L Instruments.
Electronics Forum | Mon Dec 14 10:53:10 EST 1998 | Earl Moon
| Has anyone had any experience with using this alternative plating process? Some board houses are pushing toward this plating. Is there any long term data on this process? Any problems experienced with smt and thru-hole? I've heard tin whiskers to b
