Electronics Forum | Tue Nov 01 12:36:19 EST 2005 | moonshine
What's your pad geometry/sizes relative to lead width/length? Revisit this and my free website: http://www.moonmanondarkside.com and see some examples and download some free documents. MoonMan
Electronics Forum | Fri Nov 09 13:41:06 EST 2007 | stepheniii
Don't forget that leadfree solder can leach the iron out of old solder tanks. Make sure yours is compatable with leadfree solder. You don't want the tank disolving, unleashing a tidal wave of molten solder.
Electronics Forum | Wed Dec 05 03:52:15 EST 2007 | longlee
I disagree with the opinion what use the same reflow oven for both Lead and Lead-free process. As you know, the RoHs restrict the presence of certain substances, including Pb,Mercury,Cadmium,Hexavalent Chromium,PBB,PBDE. Maybe yon don't find any iss
Electronics Forum | Fri Apr 16 12:47:48 EDT 2010 | boardhouse
White solder mask does have a tendency to yellow within the lead free environment. so double coating will not help any. I due believe the flux is a factor in the yellowing but due to the color is the main reason. Find out what brand of S/M mask they
Electronics Forum | Fri Jan 26 09:37:42 EST 2001 | blnorman
Our current solder paste vendor wants us to evaluate a paste. One of the selling points is that this paste (SnPb) will have the same flux package that will be used with some of their lead-free pastes. We are looking at going to SAC when we go lead-
Electronics Forum | Fri Feb 24 15:15:33 EST 2006 | russ
The No-Clean indium lead free paste runs well. We discontinued because of extremely high shipping costs. We can get the same results with cheaper product. Almost all of the discussion in this forum about SAC305 and SN100C have to do with wave sold
Electronics Forum | Thu Jan 25 13:20:17 EST 2007 | slthomas
Are you running a lead free process? If not, have you identified these as lead free components? If so, have you increased the temps in your profile to accomodate that? After that, I'd look for a AgPd (silver/palladium) or some other such PITA platin
Electronics Forum | Mon Aug 31 09:55:09 EDT 2009 | pjc
What is the common practice for cleaning Tin/Lead and Lead Free solderpaste on stencils- some machines have filtration I'm told, so its not an issue according to the mfrs. On machines that don't have filtration do you run one after the other? Do you
Electronics Forum | Wed May 15 08:33:43 EDT 2013 | emeto
SAC is a lead free alloy that comes from SnAgCu(tin, silver, copper). When you say SAC305 that means 3%Ag 0.5%Cu and the rest is Tin. About the LF I assume that it means Lead Free, but what metal contents it has I can only guess.
Electronics Forum | Tue Jun 21 07:39:23 EDT 2005 | davef
There's a fair amount of material on cooling rates for lead free on the web. Look here: * http://www.speedlinetech.com/docs/Cooling-Slopes-Lead-Free-Reflow.pdf * http://www.findarticles.com/p/articles/mi_qa3776/is_200412/ai_n9473486 * http://www.m
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