Electronics Forum | Mon Oct 21 23:48:13 EDT 2002 | harris
Hi: If anyone have the experience with the PCB pad design and stencil design for the uBGA? We meet the problem for it. The component data is 0.3mm diameter and 0.5 pitch. Could anyone tell me the PCB pad dimension, the stencil type and aperture dimes
Electronics Forum | Wed Oct 10 19:02:38 EDT 2001 | mparker
Why not quantify the amount of time spent taping apertures every time you want to use the stencil vs. the cost of a new stencil (about $300, usually)? Look for problems that are created by the blocked aperture method - is there rework down the line t
Electronics Forum | Wed Oct 10 20:54:32 EDT 2001 | davef
We're with the Ozzy's earlier posting on this thread. We make similar products, like: * Phantom products that are mostly complete and then are configured to order by adding or subtracting a couple of parts and some jumpers. * Version products like y
Electronics Forum | Fri Jun 23 09:54:20 EDT 2000 | Dave F
Igmar: Chrys and JAX make good points. I'd like to add that you should be careful that you don't starve larger chip components of solder when using a 4 thou stencil.
Electronics Forum | Fri Nov 19 22:48:26 EST 1999 | mark
Steve, your comments from your stencil vendor are very interesting. Any decent laser cutter automatically cuts a trapezoidal aperture. This is just the nature of the cutting. We have a bunch of lasers (and chem-etch). You have to polish your laser cu
Electronics Forum | Wed Apr 10 11:45:08 EDT 2002 | mwoodall
We measure the thickness of solder paste printed onto PCBs as a control of the printing process. Generally 6 thou stencils are used and give between 6.2 and 6.8 thou. What thicknesses do other users get? Cheers! Mark
Electronics Forum | Fri Apr 12 10:15:12 EDT 2002 | dima
Hi! I investigate possibility of manufacturing laser cut stencils. May be someone knows about equipment suppliers for such production (lasers, e.c.t.)? Thank you in advance for your help!
Electronics Forum | Wed Feb 04 16:54:04 EST 2004 | mk
Hopefully this is not a stupid questions but, if you are printing low tech surface mount boards, is it possible to print through a mesh screen versus a stencil? Isn't that the way it used to be done? Like soldermask only stainless steel versus polyes
Electronics Forum | Mon Sep 27 14:01:45 EDT 2004 | scombs
Has anyone out there had any long term experience with either of these stencil systems? I'm looking for feedback on how the foils hold up, operator interface etc. Thanks in advance. Steve
Electronics Forum | Thu Oct 09 15:26:08 EDT 2008 | wrongway
We use campton tape also but we use a ultasonic stencil cleaner and the tape will come off everytime its washed good luck
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