Electronics Forum | Tue Mar 30 22:30:06 EST 2004 | davef
Tony First, drying at 125*C for an hour is not going to do much drying. Heck, those boards are barely warm to the touch. Second, tell us about: * Pitch of your uBGA * Solder paste flux * Cleaning process and agents
Electronics Forum | Fri Mar 23 11:58:01 EST 2001 | mparker
You are mixing long exposed paste back into fresh? How long has your fresh jar been open to the air? You are probably doing yourself a disservice by scavenging the paste (it could have moisture entrapped). Your visocity has definitely changed. You a
Electronics Forum | Wed Sep 02 16:47:03 EDT 2015 | curiousman
Hi all, My company recently purchased a preowned EBSO SPA 400-F, and I am trying to get it up and running. Still need to get a few other parts like a nozzle and nitrogen generator, but in the meantime I was looking to clean out the residues and oxid
Electronics Forum | Tue May 26 19:20:39 EDT 1998 | Graham Naisbitt
Ryan, Please consider the following: There is no such thing as no residue flux. Low or no solids flux contain "wetting" agents to help the stuff stick upside down! Try painting your ceiling with less than 2% solids paint!! With all this excess liquid
Electronics Forum | Mon Oct 02 10:22:13 EDT 2006 | SteveH
We are having issues with cleaning underneath leadless chip carriers due to their extreme low lying nature and I wondered if anyone else had any experience of this. Our process for years has been vapour degreasing with Triklone N, which works, but w
Electronics Forum | Thu Dec 06 08:57:32 EST 2007 | davef
With this small amount of background information on the situation, comments are: * If you let adhesive cure on your stencil, you should not be using Zestron 301. A hammer and chisel is more effective. * Assuming you are not letting the adhesive cure,
Electronics Forum | Mon Jan 21 20:15:50 EST 2013 | jeremymek
It depends really on what you are looking to spend. there are small bench top ultra sonic style cleaners ( eg http://www.gen3systems.com/viewprod-GENSONIC.php) or larger full automatic immersion style cleaners eg http://www.mb-tech.fr/en/our-soluti
Electronics Forum | Fri Oct 13 17:21:05 EDT 2000 | Jason Nipper
A few weeks back we experienced a wave process problem where we received deposits on our pcb. At first we though it was dedrites but after an outside analysis of the deposits they were found to be tin. We have tried to remove the deposits with brus
Electronics Forum | Tue Aug 03 18:11:21 EDT 2004 | davef
Improper washing of water soluable flux residues can be a major contributor to flux residues remaining on the board surface. ;-O That you appear to be only complaining about the pathetic state of the ability of your washer to clean under BGA, it may
Electronics Forum | Fri Nov 13 13:04:00 EST 2009 | jagadeeshrajagopalan
Normaly we clean using tooth brush with anti grease agent. Most of the time we found the eccentric pins got worn out during HSP feeder maintenance
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