Electronics Forum | Sun Jun 10 23:49:17 EDT 2001 | Robert Sykoh
No-clean is definitely a cheaper process. It will eliminte cleaning. Some issues associated with no-clean are: -- the flux stain left behind on the PCB will create a cosmetic issue. You may want to seek advice from your customers. -- next, the flux
Electronics Forum | Fri Mar 29 07:53:12 EDT 2019 | davef
Why are you printing paste on test via? In the old days, we probed soldered pads to cushion impact force of probing. Is that still a reasonable practice?
Electronics Forum | Fri Apr 14 13:30:20 EDT 2000 | Murad Kurwa
Hi All: Can you tell me specifically if you converted an exiting product made with Clean process using WS609 or compatible to 'No-Clean' process. We have to convert assemblies from current clean process at a CEM to No-Clean process in our own factor
Electronics Forum | Wed Jul 29 17:39:40 EDT 1998 | David Spilker
| Hello everybody. | Remember I posted some questions on the smtnet regarding placing the thru hole connector using paste and reflow(pin in hole). I have able to accomplish the process succcesfully.....but I have a problem. The boards are failing at
Electronics Forum | Thu Aug 04 09:32:03 EDT 2011 | rway
No need to clean unless the sticky residue is an issue for you. If you are working with RF, it could be an issue. You may have probe contact problems as well with ICT and FT fixtures. We use a low residue flux for our wave solder machines (Kester
Electronics Forum | Wed Jun 24 06:18:59 EDT 2020 | bukas
there is a oven setup wizard, I think you should be able to adjust probe offsets there. are the probes original? maybe they are replaced with inadequate ones? also, contacts on TDMs are weak, give them a good clean if you havent already. if you get "
Electronics Forum | Wed Jun 29 16:28:06 EDT 2011 | rway
Let's be more specific. Why do you need to clean the boards? I assume it is for testing purposes, probe contact concerns and the like. This is the only economical reason I can think of to clean no-clean flux residue from your assemblies. Before y
Electronics Forum | Fri Oct 13 15:55:53 EDT 2000 | Dave F
Guys, two things: 1 Fluxes have different probing chaacteristics. Consider broadening your horizons. 2 Look at SMTnet thread ... ICT Fixtures No-Clean Flux - Cartman 14:04:14 03/16/2000
Electronics Forum | Mon Aug 22 11:50:02 EDT 2011 | rway
Yes, but even high force probes are not a cure-all. You still get flux build-up over time which can cause contact issues. The best way is to use a low residue flux in the wave to minimize what's left on the pcb post-wave.
Electronics Forum | Wed Apr 03 19:02:16 EDT 2019 | SMTA-Vikram
We still use Via as test points. so we need to paste Via. Pasting will make better contact with probes compare to test via without solder.
winsouce.jpg)
