Electronics Forum | Mon Apr 22 16:55:42 EDT 2002 | russ
Greetings All, Anybody out there experiencing white residues after cleaning? We currently use a batch cleaner to clean water soluble fluxes. this cleaner makes its own DI water by means of carbon and resin tanks. After cleaning there are residues
Electronics Forum | Wed Oct 27 09:39:54 EDT 2004 | loz
Hi all, been recently wave soldering some pcbs with no problems and have now noticed what looks like blue residues on some solder joints. We have been running this product for around six months and this is the first time we have seen this. It is rand
Electronics Forum | Thu Aug 14 10:54:21 EDT 2008 | diesel_1t
Comments are: * Link you posted to your brush > actually connects to a general catalog page. * > Not sure what solders your friend was using, but > pastes leave different residues that affect > probing. Some are soft and gooey, others are hard >
Electronics Forum | Thu Nov 07 12:51:09 EST 2002 | slthomas
This is embarassing. I've used ipa (actually "70/30 rubbing" alcohol) to clean these for a better view (this is a no-clean), and found the above described anomaly to be intact. So, I assumed it was something in the solder itself. Well, today I us
Electronics Forum | Fri May 23 18:55:20 EDT 2008 | gregoryyork
This is one of the biggest mistakes with the Lead Free process. We have all listened to the 'industry experts' and followed their advice and unfortunately got it wrong. Keep the dwell times (dependant on alloy selection) the same as Leaded so you are
Electronics Forum | Tue May 19 12:54:55 EDT 1998 | Richard Jackson
| We had a similar problem. But whenever the solder came from the screen printer the solder would wet to the gold fingers, with the help of residual flux. But the problem is balls, that I assume are not wetted to the gold fingers but instead are jus
Electronics Forum | Mon Nov 01 15:57:35 EST 2004 | davef
Both are equally efficient process control tools. Neither is particularly effective in testing ionic contamination. The best way to sell your customer on allowing you to do this is to show them that you understand the WHOLE process and are able
Electronics Forum | Mon Jan 26 13:13:07 EST 2009 | rgduval
We've had this same problem with the solder wicking to the component terminations. However, in our case, we did not see the pads turning a silver-white color...rather, they exhibited a tarnishing/darkening of the gold. We determined that we had som
Electronics Forum | Thu Mar 21 09:23:35 EDT 2024 | alishakihn
Good morning! I'm sorry to hear about the anomalies you're experiencing with your inline wash. Dealing with foaming issues can be challenging, but I'll do my best to provide some suggestions to help you troubleshoot the problem. 1. Check the Water Q
Electronics Forum | Thu Jan 23 20:57:33 EST 2003 | davef
If the flux was not activated (ran in another area of the board), the flux should be removed from the board. Any Comments? A: We agree. In order for its �benigness� to take effect, NC flux is affected by: * Type of flux * Amount of flux * Proper ac
