Electronics Forum | Wed Oct 11 10:29:28 EDT 2000 | G. English
Try the following steps : FIRST CHECK THE ARCHIVE for further information, it WILL help you. Step One : What�s the chemical analysis of this white res? Obtain a sample. It could be tin, rosin, or something else??? Step Two : The fastest way I know
Electronics Forum | Fri Oct 13 05:21:08 EDT 2000 | Robert Steltman
Looking at the original post, it seems that the white residue is formed on the board after wave soldering and becomes evident when it has been left standing for a while. From what I understand, it seems that the solids content of the "no clean" flux
Electronics Forum | Sun Aug 29 19:17:34 EDT 2004 | aqueous
Chen, It is always best to place one�s effort on determining the cause and content of the residue rather than trying to work around it. The first thing you must determine is the nature of the residue. Is it flux? In many instances, the residue is
Electronics Forum | Tue Sep 01 06:55:22 EDT 2009 | davef
Rocko: While you're rooting around with the cleaner to better understand the issues with your water supply, monitor the heaters of your cleaner. We've had instances were the heater control has created "white haze" problems. Are you sure the residue
Electronics Forum | Thu Nov 02 13:17:06 EDT 2017 | jardcrocker
Hi...i have a question. After you solder a circuit board, what do you wash the flux residue off with? I am hesitant to use water for fear of subsequent corrosion, and have no clue as to what kind of flux is in my solder wire. automated pcb assembly
Electronics Forum | Fri Dec 01 14:12:50 EST 2000 | Jim M.
My company currently uses water soluble paste for our SMT process. We were having trouble retaining hot water in our in line, closed loop DI cleaner. The cleaner kept shutting down when the water temp. dropped below 125C. As a result, the conveyor
Electronics Forum | Fri Dec 01 15:37:50 EST 2000 | Dason C
Jim, you may need to look with different paste instead of the cleaning solvent. Please advise what is the paste which you currently using? Beside, when you talking about the board stayed in hot area, is it a drying area or the cleaning zone. If it
Electronics Forum | Fri Jul 30 09:43:44 EDT 1999 | C.K.
| We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. | The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is that after
Electronics Forum | Thu Aug 06 09:51:20 EDT 1998 | Bob Willis
This text may be of interest to any one with tin lead spots Guide to Solder Spots - A New Plague in Manufacture ? So what are solder spots ? They appear to be the next big problem in modern reflow assembly in fact in any process that involves solder
Electronics Forum | Fri May 11 15:43:41 EDT 2001 | davef
More information would be helpful. For instance: * Talk about the distribution of the problem, including a single lot or from various lots and over components and component types on the board * Tell us about the board (ie, thickness, type, solder ma
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