Electronics Forum | Thu May 17 09:01:01 EDT 2012 | scottp
I'm not sure why anyone would pay extra for FG (fine grain) stencils. I've run studies comparing traditional YAG laser, fiber laser, and E-form stencils with regular stainless, FG, and nickel foils. YAG is the worse and should only be used for pret
Electronics Forum | Fri May 11 09:56:58 EDT 2012 | cyber_wolf
Paste control is a subject that has a lot of unfounded claims surrounding it. What is the difference in having a "working paste jar" and a "new paste jar" Either way new and old are getting mixed at some point. We just don't buy onto the whole thing
Electronics Forum | Tue Sep 25 15:54:55 EDT 2012 | davef
The more that I chew the idea of outgassing through the pad theory, the less I like it. Why would something, water???, choose to outgass through the pad when moving through the solder mask would be a path of much less resistance? And why wouldn't the
Electronics Forum | Thu Feb 28 10:22:46 EST 2013 | rway
If your silkscreen is too close to the toes of your leads, you can bring the lead bank inspection box in a little bit to compensate. I haven't had many issues with tantalum caps. I inspect those under white light with no filter just fine, but then
Electronics Forum | Wed Apr 03 16:07:13 EDT 2013 | microaide
OK, so I think I have figured out the machine configuration for tape feeders. BTW, your procedure for retrieving the X/Y/Z coordinates for the pickup locations was wrong. So I looked it up in the Quad manual. The manual was wrong too. Correct procedu
Electronics Forum | Fri Jun 14 12:00:10 EDT 2013 | rgduval
Is this a new assembly/new test fixture/program? Or is this an existing assembly that is suddenly exhibiting this failure? Capacitors measured in circuit will not necessarily measure their correct values. Active components in circuit will be affec
Electronics Forum | Tue Aug 13 10:09:10 EDT 2013 | dyoungquist
We have a Heller 1707EXL that we use for lead and lead-free production. It has both a mesh belt and edge rails. We run 90% of our assemblies on the mesh belt (leaving the edge rails wide open). I have noticed when profiling a board on the mesh bel
Electronics Forum | Mon Apr 14 17:38:18 EDT 2014 | bradlevy
I've got a small smt board I've already got working prototypes of, which uses a tactile switch. I've got another much less expensive tact switch of similar size that I had avoided due to a difference in actuators I originally had no way around. Now I
Electronics Forum | Tue Nov 25 05:20:20 EST 2014 | grimus
Could be. I am making overprint to achieve proper amount of solder paste inside hole. Now I am trying to reduce maximum overprint and compensate it with step - up stencil. This could reduce effect that some particles of solder paste are not gathering
Electronics Forum | Wed Sep 06 18:19:37 EDT 2017 | slthomas
Hi All, We are being intermittently challenged by a .5mm pitch uBGA paste release issue. We don't build with many of these so don't have a lot of history here. We've gone through 3 different stencil designs and the most consistent performer was 4 m
