Electronics Forum | Mon Feb 11 04:53:13 EST 2013 | ngineer
I'd like some recommendations on the type / size of quad fiducials to use. I started with a small + on the silkscreen layer, but i think that a via is better, and have been using it. Now i'm considering a round smd pad, but not sure the size. Any
Electronics Forum | Thu Feb 14 11:30:04 EST 2013 | davef
Yeh, I love the idea of tankless, but ... Tell ya what, when I'm at IPC APEX next week, I'll poke around on using tankless in a mid-to-low volume plant. BR, davef
Electronics Forum | Tue Mar 26 13:28:54 EDT 2013 | nickjamison
Hi robgd3, your DI system installer is right in his recommendation for a tankless/on-demand system. You know what? We are in the same situation six months ago and all my concerns were met when I installed this tankless water heater.
Electronics Forum | Tue Feb 12 14:00:53 EST 2013 | dyoungquist
We have a board with a 1.0mm pitch BGA. The stencil apertures are 0.0177 inch diameter. We used an electroform stencil with good results.
Electronics Forum | Tue Feb 12 15:28:19 EST 2013 | pnguyvu
You need a good designed stencil. Contact Steve - He'll make a free article stencil to try out below is his contact info. Steve@usastencils.com 714-636-6211 Good luck!
Electronics Forum | Tue Feb 12 15:48:40 EST 2013 | emeto
My appertures are 10mil diameter. Using electroformed stencil is probably be my next step. Thank you!
Electronics Forum | Fri Feb 15 12:29:35 EST 2013 | mikesewell
What foil thickness? Type 3 or 4 paste? Have you checked your area ratio(s)? You could overprint or drop your foil thickness by one mil to improve the ratio and paste transfer. As always you can search the fine SMTnet archives for more info.
Electronics Forum | Mon Feb 18 12:09:17 EST 2013 | pbarton
What type of flux material does your solder paste have? I have seen difficulties when attempting to print small apertures with water washable and rosin types. Do you get a good first print and then have problems or is it the same from the start?
Electronics Forum | Tue Feb 19 03:02:01 EST 2013 | pbarton
No Pete, > > problems start with very first > print. OK, So what is the flux type in your paste?
Electronics Forum | Wed Feb 13 09:51:14 EST 2013 | cnotebaert
Does anyone know of a masking material that could be applied over test pads that could be left on board that ICT test probes will pierce? could be tape or dispensed material. Thanks!!
