Electronics Forum | Mon Sep 28 19:07:47 EDT 1998 | Steve Gregory
| I have had some field failures returned recently, the boards had flux contamination under the components in a sensitive area, Nothing really visible until the component was removed, and the board had no evidence of rework of any type. Is it poss
Electronics Forum | Wed Jun 17 16:08:37 EDT 1998 | upinder singh
We are facing a problem of high contamination on boards after wave soldering. We want the contamination to be under 24 ugm/inch square. We are using a no clean flux with the spray fluxer unit of wave soldering. The contamination is higher on the end
Electronics Forum | Fri Jul 13 16:45:37 EDT 2007 | losersk8er
The Contamination has proven to be pretty random, lots of stainless steel though in fact two cases in the past two days. As far as I know all machinery is cleaned regularly as well, even the stencil washer itself. The boards we make are 90% (at l
Electronics Forum | Mon Sep 28 09:35:28 EDT 1998 | Clive Heke
I have had some field failures returned recently, the boards had flux contamination under the components in a sensitive area, Nothing really visible until the component was removed, and the board had no evidence of rework of any type. Is it possib
Electronics Forum | Fri Jan 21 08:00:09 EST 2005 | Lloyd
I recently saw a brief presentation on selective cleaning using Co2. In basic terms a fine jet of Co2 is blasted onto the desired area of the PCB removing the contamination and supposedly causing no damage to PCB or components. I think it's quite a n
Electronics Forum | Wed Jun 17 16:19:10 EDT 1998 | Ryan Jennens
| We are facing a problem of high contamination on boards after wave soldering. We want the contamination to be under 24 ugm/inch square. We are using a no clean flux with the spray fluxer unit of wave soldering. The contamination is higher on the e
Electronics Forum | Mon Jun 19 09:47:23 EDT 2017 | georgetruitt
You have a lot to think about! What does the flux manufacturer recommend as far as specifics like water temp or pressure? Do they recommend high temp di-water a detergent or saponifier? Do you currently have a cleaning machine, batch cleaner or inl
Electronics Forum | Tue Sep 29 04:54:23 EDT 1998 | Clive Heke
Thank you Steve for your input it was very usefull. I think I skipped a few pertinant details on my initial message though, the component which we found the flux contamination on was on the top side of the board, I was curious if the flux could come
Electronics Forum | Wed Sep 05 17:37:56 EDT 2001 | seand
Hello Jeff, If you have components on your board be careful of how low the frequency is that you will be applying to your board. Ultrasonics are great for cleaning stencils and bare boards at around 40kHz. These frequencies (and Lower)may however
Electronics Forum | Thu Jun 12 00:28:28 EDT 2014 | ericchien
Hi Martin, Just wondering do you wish to test the component? I and my company may identify what is the foreign contaminants of it. Most probably is the flux deposits though. Anything you want to inspect you might get to me at +65 94870818.
