Electronics Forum | Mon Aug 28 17:16:32 EDT 2006 | Board House
Being the Lead free material would be more fragile it would have more of a tendency to fracture the material. I have had a customer run into this issue, they have not came across a cure yet. Hitting the upper tolerance might be the cure I will sugges
Electronics Forum | Tue Aug 22 12:04:11 EDT 2006 | rlackey
No, not by us mere mortals but where there WML there's hope. I'm not convinced the package would like around 260C either. Disclaimer: Please note I am just a simple engineer and was not privileged enough to attend Soltec University, instead having
Electronics Forum | Wed Aug 23 22:31:17 EDT 2006 | darby
Nope, and, Be careful with the "grid" on your stencil for the big centre pad - I could not find the stencil recommendations. I use a similar part by Cygnal (CP2101). Next time I will reduce the apertures by 50% from their suggested layout. We had fl
Electronics Forum | Thu Aug 24 03:20:36 EDT 2006 | aj
we had problems with fillets and shifting aswell,but the recommended print aperture is reduce thermal pad by 35% and offset the lead print by 3thou...i.e. 3thou over hang on outer edge of lead which also moves the paste 3thou in from the inner edge .
Electronics Forum | Fri Aug 25 09:15:43 EDT 2006 | russ
We use a single large pad on board and reduce stencil aperture 50%. If you mask/reduce the thermal pad the solder will not wet out to edges and you will still see the part standoff with the open joints. the purpose of reduction is to wet the paste
Electronics Forum | Tue Aug 22 15:10:09 EDT 2006 | bobpan
Just to comment on the quad equipment side......The QSA-30 is also obsolete but you can use the same feeders on it as the 4c. The setup time would be the same but the speed is quicker (i think around 10k cph). If I were in your shoes....i think i wou
Electronics Forum | Tue Aug 22 12:50:16 EDT 2006 | Mark H
I've recently been told that Dover Corporation is selling the Vitronics Soltec division. Has anyone heard anything more about this? Our company is looking at buying a new wavesolder machine, but are hesitant with the news. Here is the release from
Electronics Forum | Tue Aug 22 13:00:53 EDT 2006 | Chunks
More importantly, does this void WML education at Soltec College? If so, he would become mere mortal, right? (Sorry Mark, Snakes On A Plane.... I know) If you were seriously looking at Soltec, then an Electrovert wave should fit your every needs a
Electronics Forum | Tue Aug 22 15:34:14 EDT 2006 | Chunks
Hi Steve, What type of flux? How do you apply it? What kind of wave? Rite off the cuff, I'd say you're applying too much flux, but without knowing a little more, it's tuff to say. It could even be board related. Hate to see what WML has to say
Electronics Forum | Tue Aug 22 18:15:50 EDT 2006 | russ
okay so both the 2005 formulas from interflux are clear alchol based fluxes. Yellow res huh? In looking at the temps here, I would say you might be too hot at both preheat and solder temp. You may be burning flux. How long is dwell time over wave
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