Electronics Forum | Thu Nov 14 21:47:41 EST 2019 | sssamw
Yes, 0.25x0.25 square could work @0.1 thickness, use nano-coating or electroform stencil for better solder paste release.
Electronics Forum | Wed Sep 08 20:22:38 EDT 2021 | emeto
Hello, do you perform any stencil maintenance? What type of controls do you use? Also interested if you have a way to measure nano coating thickness? Any ideas will be appreciated.
Electronics Forum | Thu Sep 09 20:48:12 EDT 2021 | laserstencils
I do not know of a way to measure the nano-coating. However, it is easy to check if it is still on the stencil. Simply use a 'sharpe' pen and try and mark the bottom (PCB) side near any openings. If it easily marks, then the nano is no longer present
Electronics Forum | Mon Aug 14 05:45:16 EDT 2023 | dimamalin
First, this is the result of bad printer setup. Adjust knife pressure, PCB gap, separation speed, tooling, and stencil cleaning. Pay attention to the coating of contacts pad and height of solder mask of PCB.
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
Electronics Forum | Fri Apr 21 17:46:29 EDT 2006 | SD
First of all, do not use kapton tape! It tends to cause a dewetting effect around the tape. A call to Humiseal will explain why. There's not really a blanket answer to your question.... Removing cured liquid mask can often result in a fillet ef
Electronics Forum | Thu Jan 29 15:27:54 EST 2015 | markhoch
I agree with SWAG on this. Nano Coatings make a big difference on paste release. I found when placed on the topside of the stencil, it also helps to reduce stencil wear, though others complained that it affected the solder roll, so most stencil house
Electronics Forum | Thu Sep 07 11:39:39 EDT 2017 | swag
Two magic bullets help us greatly with fine pitch printing: 1) nano coatings (we use a DEK product) YES it really does work 2) temperature control in the printer (AC unit). Of course good quality stencil and proper cleaning of the stencil are im
Electronics Forum | Fri Feb 22 13:48:27 EST 2013 | cyber_wolf
I have been told that stencil nano-coatings are rain-x in a different container. I guess I half believed it until I opened up a sample the other day. It smells EXCACTLY like rain-x. For those of you that have never smelled rain-x it has a very distin
Electronics Forum | Fri Sep 22 14:10:19 EDT 2017 | slthomas
Just for the sake of passing along the information, the fine grained stencil provided zero improvement over the standard PhD stainless and was not nearly as helpful as the baked-on nano-coating. We probably won't be trying that again unless we go und
