Electronics Forum | Tue Aug 30 10:46:27 EDT 2005 | lyrtech
Hi, I curently have an interesting challenge. But I don't have all the knowledge to solve it. One of our boards is used in RF applications. We noticed that the No-Clean flux residue makes interferences in the RF signal. Removing the flux residue so
Electronics Forum | Wed Aug 31 04:04:32 EDT 2005 | Slaine
im running some tests at the moment for hand soldering using a no residue water based flux from MBO, called WBF-01. leaves a good clean finish.
Electronics Forum | Tue Aug 30 12:24:02 EDT 2005 | patrickbruneel
Yes a No-Residue solder paste exist. email me for more info Pat
Electronics Forum | Tue Aug 30 12:08:09 EDT 2005 | slthomas
The answer for us at my previous employer was water soluble flux. Wash the board, no residue. If you're not set up to wash (needing a washer, DI water source, waste treatment, ventilation, etc.) it can be expensive and space consuming. Do some resea
Electronics Forum | Tue Aug 30 15:05:23 EDT 2005 | Shean Dalton
Dear Ing, Have you analyzed why some RF device aren't operational after washing? An assumption is that failures are related to the ultrasonic energy applied. Other possibilities are for poor rinsing, poor drying, inadequate washing on those failed
Electronics Forum | Mon Jan 08 10:29:15 EST 2007 | jaime39
The water soluble flux residue is staying there because the rinsing temperature it may be too low. The flux needs about 130-140 degrees celcius to become soft. If you are using water soluble flux, as per IPC A 610 standards it needs to be remove comp
Electronics Forum | Tue Dec 26 20:11:47 EST 2006 | davef
What is the make-up of the residue? Is finding this residue new to your standard operation? What has changed?
Electronics Forum | Wed Jan 17 10:01:49 EST 2007 | lyetc
Hi...have you try ultrasonic cleaning before rinsing?
Electronics Forum | Fri Dec 29 01:25:32 EST 2006 | yusuf
About one year we have that problem with some of pcbs. Our customers told us about that. Because they can't mounting components on those pcb reason of flux residue. As you know flux not conductive chemical. We didn't change anything before having tha
Electronics Forum | Thu Sep 03 11:20:41 EDT 2009 | thunderdog5000
I have a customer that is having a flux residue problem after wave soldering. Flux is roaring through the board to the top side and leaving a residue. This is only happening on the flat stamped leads. The round leads are fine. They are using Supe
