Electronics Forum | Thu Jul 21 07:21:47 EDT 2011 | ccouture
So far after ~1500 units printed with the stencil treated once with Rain-X, no issues were detected with solder joints. The only difference is no more solder bridges on fine pitch with .010" openings. The print is picture perfect on all pads, nice an
Electronics Forum | Thu Jul 21 11:13:25 EDT 2011 | kahrpr
we use turtle wax on a more serous note, I bet those two products are similar in the fact it you fill the ridges in the aperture walls you will get better release. They may be closer than you think.
Electronics Forum | Thu Jul 21 12:04:01 EDT 2011 | ccouture
the appearance during the application was the same (to the eye). the feel to the touch is the same once it is dry and polished. The effect is the same when water is sprinkled on the treated surface. My understanding is that the product bonds to the s
Electronics Forum | Thu Jul 21 13:16:06 EDT 2011 | markhoch
You best be careful and watch your back. The DEK Mafia may be lurking.... You may end up sleeping with the fishes...
Electronics Forum | Fri Jul 22 13:13:03 EDT 2011 | ehughes
Yes we have tried. It works really well and lasted as long as the run which was in the tens of thousands of cycles. I think we increased the interval time between cleaning by a factor of 5.
Electronics Forum | Wed Jul 20 13:46:24 EDT 2011 | ccouture
200 PCB over 3 shifts now on Rain-X. No signs of contamination from the stuff. Yes, Rain-X, the stuff you buy at auto shop to treat the windshield so that the rain just rolls off the glass. Cost: ~$6 for 200ml, enough for ~100 stencils... I'm not pr
Electronics Forum | Thu May 17 11:07:11 EDT 2012 | scottp
I don't have an opinion on nano coatings since I haven't tried them. Our suppliers keep pushing it so I'll eventually check it out. The reason I zeroed in on the FG foil is because I almost fell into that trap. Several years ago I wasn't aware the
Electronics Forum | Wed Nov 15 12:52:21 EST 2017 | georgetruitt
IMO – Look into nano-coatings for your stencil and radius all square apertures This should help out with solder paste releasing from the stencil helping with insufficient solder QFN LGA aperture design, try a stencil cut with a few different apertur
Electronics Forum | Wed Mar 18 11:27:24 EDT 2020 | slthomas
I am about to order a stencil and I can already see that I'm going to have issues. I'm hoping someone has a recipe for this scenario that we haven't tried yet. The parts are 16 mil pitch bga's, the pads are NSMD (10 mil dia. with 12.6 mil mask open
Electronics Forum | Fri Jul 08 12:45:10 EDT 2011 | markhoch
It's a $40 adder to my stencils if I have them apply it. But I've just discovered that if you have THEM add it, they add it thru a stencil and only apply it to the appertures. (My guess is they do this because it allows them to use much less material
