Electronics Forum | Tue Nov 27 13:36:22 EST 2001 | jmathis
Solder balls on the topside of our wave solder boards is a real issue. We have found that during the wave solder process, solder will enter through the via holes in the form of solder balls. It seems to be related to flux captured in the vias and o
Electronics Forum | Fri May 29 15:17:14 EDT 1998 | Ryan
| Thanks Steve- Here is the whole story: The solder balls are appearing all over, similar to a splatter. They are relatively small. We are using H-Technologies S-HQ no-clean solder paste. The stencil is 6 mil and the boards are running in a ABW
Electronics Forum | Thu Jan 31 10:20:04 EST 2013 | rjohnston58
Need your help with a referee call on solder balls. See attached pictures. Engineering believes the solder balls and splash in pictures violate IPC-A-610E-2010 section 5.2.7.1. Purchasing on the other hand believes these are acceptable. Info: balls a
Electronics Forum | Wed Aug 23 15:19:11 EDT 2000 | Dr. Ning-Cheng Lee
From solder material point of view, a solder paste with slow coalescence rate, or slow wetting rate, will be most desirable. Processwise, allowing the paste to stay at soaking zone for longer time will dry out the volatiles, and reduce the chance of
Electronics Forum | Tue Jan 08 14:54:10 EST 2002 | Yannick
Hi, I experience some trouble with my solder joint recently. And I'm wondering if someone could help me with this. First I use a thermocouple wich I must tape to the board to profile my temperature. I want to buy the Temprobe from Saunder Tech
Electronics Forum | Fri Aug 18 00:23:21 EDT 2006 | umar
Hi SWAG/Rush/Steve, Thanks for your response, Currently I am running with 811 lead paste. Actually this problem not only effect for one assy. I got 700 models runing at my company, but almost 50% of the model I have problem with solder balls issue.
Electronics Forum | Fri May 29 16:07:55 EDT 1998 | Steve Gregory
| | Thanks Steve- | Here is the whole story: | | The solder balls are appearing all over, similar to a | splatter. They are relatively small. We are using H-Technologies | S-HQ no-clean solder paste. The stencil is 6 mil and the boards | are ru
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
Electronics Forum | Mon Jan 19 20:01:11 EST 1998 | Steve Gregory
| We use no clean paste and sometimes experience | flux splattering which gives spot on gold fingers. | Need help in analize the cause. thx. Dominic, That is STILL a problem huh? It's a tough one to solve sometimes...especially when you have as
Electronics Forum | Mon Jun 01 14:35:59 EDT 1998 | Rich
| | | | | | Thanks Steve- | | | Here is the whole story: | | | | | | The solder balls are appearing all over, similar to a | | | splatter. They are relatively small. We are using H-Technologies | | | S-HQ no-clean solder paste. The stencil is
