Electronics Forum | Thu Nov 16 18:19:10 EST 2000 | Dave F
We want to improve our process for accepting SMT solder paste stencils received from suppliers. Our process: * E-mail CAD aperatures to supplier with "readme" giving specific fabrication instructions to the supplier. * Receive stencil from the suppl
Electronics Forum | Wed Jun 13 13:50:49 EDT 2001 | DaveG
I don't have any actual "hard" data to give on improvements but, I can share some experiences with you. What we noticed when we implemented the Rheo pump was: No more solder "skips" on our boards, Improved print quality on our BGA's & 16mil fine pitc
Electronics Forum | Sat Sep 04 09:31:35 EDT 1999 | Earl Moon
| | | Dear sirs, | | | | | | If you have experienced Proflow of DEK screen printer, please let me know the details of it. | | | | | | Best regards, | | | | | | Jame Bond | | | | | | | | James, | | | | Stir, don't shake is not good advice for c
Electronics Forum | Mon Jul 29 11:20:10 EDT 2013 | rgduval
Is there any particular reason you're looking at getting a dedicated machine?! The first question that pops to mind is...are you having so many mis-prints that you need dedicated equipment at the site to mitigate the issue? If so, I know you've bee
Electronics Forum | Tue Sep 22 08:35:47 EDT 2009 | cman
Did you try pre-tinning your board on this suspect pad/s to see if it improved wetting/solderability prior to printing/SMT placement and reflow? Does the pad/s not soldering tie to a ground layer? I would connect a T/C to each pad of the same part an
Electronics Forum | Wed Nov 27 16:11:23 EST 2002 | davef
In my haste to respond, I neglected to ask THE QUESTION. What is it about your current process that you would like to improve? While we're at it, tell us more about your: * Stencil * Paste * Printing process and set-up
Electronics Forum | Fri Jun 24 13:59:15 EDT 2022 | davef
I received the same message for the 2nd, 3rd & 4th papers and have gotten SMTnet technical people working on correcting the issue Thanks for making us aware. [davefatsmtnet.com] Effect of Nano-Coated Stencil on 01005 Printing [https://smtnet.co
Electronics Forum | Tue Feb 20 14:00:50 EST 2001 | billschreiber
Hi Dave, It sounds like you haven�t been shopping for stencil cleaners in awhile. Ultrasonic stencil cleaners start at $12,900, evaporators start at $6,800 and 440-R SMT Detergent is $19.00 per gallon. For $19,719.00 you get everything you need to
Electronics Forum | Fri Oct 14 14:09:19 EDT 2005 | bschreiber
Your problem is not the 0.4 pitch. Your problem is the manual cleaning. Manual cleaning will only remove the solder paste from the surface of the stencil. What's more, manual cleaning will force additional contamination into the 0.4 pitch apertures
Electronics Forum | Tue Oct 03 15:27:37 EDT 2000 | Wolfgang Busko
What�s wrong with your printing process and what improvement do you expect from dispensing ? I can imagine that it�s more convinient just to have this process inline, no worrying about stencils, cleaning, changing printer setting, just replacing a ca
