Electronics Forum | Thu Oct 05 12:50:48 EDT 2017 | davef
Why not toss a handful of the component that you're concerned about into your cleaner, clean them according to your board spec and the evaluate what happened?
Electronics Forum | Thu Oct 05 10:25:13 EDT 2017 | davef
Consider ... * National Physical Laboratory (NPL) [http://www.npl.co.uk] did an extensive amount of research on proper frequencies and power levels for ultrasonic cleaning, maybe in late 1980s or early 1990s. That report might help you sort through
Electronics Forum | Wed May 15 15:58:11 EDT 2013 | rgduval
Let me see if I understand you correctly. You have a batch washer (looks like a dishwasher). There is a top and bottom spray fixture, which would normally spray water up at the board and down at the board being washed. When you place boards in t
Electronics Forum | Thu Oct 02 21:00:26 EDT 2003 | davef
Who says the chlorine comes from your tap water? Our PTOW dumps boat loads of chlorine into our water periodically. Sometimes it's so bad you can smell it. We doubt that it is the source of your problem. This chlorine will volitize very quickly,
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 | Wed Jun 24 21:34:02 EDT 2015 | kennyg
I am struggling with a water wash process for a very small (1"x1") PCB. It has components that are very esily damaged by contact. I'm stuck with wash. I know, I know, but no-clean isn't an option. We put the board in s compartmentalized wash basked
Electronics Forum | Wed Jun 10 22:47:17 EDT 2009 | davef
You're correct that JEDEC J-STD-033 defines baking condidtions for moisture sensitive components. Why do you want to bake assemblies after cleaning? Search the fine SMTnet Archives for threads like: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Me
Electronics Forum | Thu Mar 25 09:27:08 EDT 2010 | stepheniii
Thanks I guess I got used to google where the "and" is implied. I searched various combinations and all I could find were threads regarding the pcb's not the components. Does anyone bake their boards after wash before second reflow because of MSD c
Electronics Forum | Thu Jul 14 01:43:09 EDT 2005 | pyramus
Solder paste used was Kester FL250M (no-clean).... components affected were only chip components 0603, no BGA & no IC components.
Electronics Forum | Thu Aug 13 16:46:13 EDT 2009 | snsmt
Hello Everyone, I have noticed that everytime that we have ran a PCB with fine pitch components (or even 0603s), there are little white strands on the leads or on top of the components. It occurs on both lead and lead free solder. We usually soak
