Electronics Forum | Thu Jul 10 12:52:41 EDT 2003 | Terry Saunders
ALL, WE ARE HAVING TOMBSTONING ISSUES WITH LED'S -ANY HELP OUT THERE. PLEASE ADVISE. TERRY SAUNDERS.
Electronics Forum | Thu Jul 10 15:04:02 EDT 2003 | russ
Search the archives. There is a ton of tombstone discussion in there. Russ
Electronics Forum | Thu Aug 05 09:21:45 EDT 2010 | doug_johnson
I am havein a lot of trouble with KINGBRIGHT LEDs tombstoning in the reflow oven. It is a PLCC2 package. The stencil apatures are home plated. Can anyone help me
Electronics Forum | Fri Jul 11 03:35:44 EDT 2003 | emeto
Hi there is one thing. I had the same problem before and after examine it I found the problem is in the pads. The pads on the board were bigger then usual and the distance between them also was a little bit longer.Theese two are the best precondition
Electronics Forum | Thu Aug 05 09:43:35 EDT 2010 | dldavis
Try antitombstone paste or if you are using nitrogen back off on the amount of nitrogen used.
Electronics Forum | Fri Aug 06 06:38:52 EDT 2010 | mun4o
Turn the panel 90 degrees.
Electronics Forum | Mon Aug 09 12:44:01 EDT 2010 | cobar
Pad & Stencil Design http://www.shanelo.co.za/technical_paper_about_stencil.htm
Electronics Forum | Thu Aug 21 11:26:45 EDT 2008 | dlabelle
Mild tombstoning on 1206 Kingbright LED. Has anyone seen this problem and have any suggestions in root cause? Please see attachment for more detail
Electronics Forum | Mon May 05 11:35:00 EDT 2003 | Grant
Hi, This is an interesting point. I use Koki paste from Japan, and it's wonderful, however what properties of solder paste would make it "anti tombstone" paste? How does led free effect tomb-stoning? That would be interesting to know. We might go
Electronics Forum | Tue Sep 11 09:41:25 EDT 2018 | charliedci
Leo, Your pic is not clear. It appears the LED is either tombstoned or billboarding. A larger pic would help, also component info, how many pads, etc.
