Electronics Forum | Wed May 06 10:20:21 EDT 1998 | SMT-ASSY
Good morning, We would like to offer our services. SMT-ASSY is a training facility (Located in Dorval, Montreal area) which can introduce your workforce to SMT and the workmanship required to obtain quality products. We have attached our brochure in
Electronics Forum | Wed Jun 14 09:34:25 EDT 2017 | cyber_wolf
In my experience there is no need for wet wiping stencils. We run 0201'and micro BGA's daily with no issues. If you are having paste release issues, I would be looking at other things. Aperture area aspect ratio, aperture design, land design, sold
Electronics Forum | Thu Sep 07 08:45:02 EDT 2017 | dleeper
In my experience with similar sized parts, the nano coatings (or what ever your supplier might call them) do help with repeatable paste release. How are you cleaning your stencils? A big red flag to me is that your stencil worked fine for the first
Electronics Forum | Tue Dec 14 17:02:04 EST 1999 | John Thorup
Hello Kris If you do have and OSP coating I'd say Curtis has nailed it. But you seem to have references to gold. Does this board have a standard nickle/gold finish. If so what sort of "solder on gold" problems were you having? Reading between the
Electronics Forum | Mon Jun 28 08:25:54 EDT 2004 | Scott Dodge
What is the difference between a smooth finish organic coated bare copper board for fine-pitch components and HASL finish?
Electronics Forum | Tue Sep 14 09:35:47 EDT 2004 | JB
We have been using SANFORD Gold Coat and are pleased with it so far. It's a meallic marker. Hope it helps.
Electronics Forum | Thu Jul 21 07:15:27 EDT 2011 | ccouture
I cleaned the stencil with IPA 99% before applying the Rain-X. Apply Rain-X as per instruction.
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 | Fri Jan 10 15:02:03 EST 2003 | John
Hi. I am familiar with the Transition blades. Normally, when there is metal to metal contact, as in the squeegee-stencil situation, there will be scratches, or a "brush pattern". Sometimes it takes the pattern of the high profile surface elements u
Electronics Forum | Thu Jul 21 19:53:20 EDT 2011 | isd_jwendell
Using AIM N.C. paste, just ran 10 panels to test after applying Rain-X to the stencil (pre-clean with IPA). Printing and release were slightly better (maybe my imagination), but not a large difference. Stencil remained cleaner longer. I could not tel
