Electronics Forum | Mon Jul 08 03:09:12 EDT 2002 | Benny
Hi all How can I find the technical paper or source of information about using No-clean flux with high frequency apllication. High frequency mean more than 2 GHz - 5 GHz. I heard from my colleague that No-clean flux residue on board effect to high
Electronics Forum | Thu Feb 27 12:23:47 EST 2003 | woodsmt
James, Have you considered going to a No-clean process? BGA's can be difficult to impossible to clean using an aqueous process. The water just won't penetrate under the entire BGA and efficiantly remove your flux residues. The tighter the pitch
Electronics Forum | Thu May 06 19:56:30 EDT 2004 | bruceatknoll
Here is some more info with regarding my Wave. 1. PCB .065" thick 2. leed length .20" (.135" protrution) I know this is high but we use many thousands and cutting each is not practical. 3. no clean flux by way of foam fluxer 4. wave machine is a HOL
Electronics Forum | Tue Jul 01 17:38:24 EDT 2003 | jartman
I've faced this several times in the past, and the only real solution is to wirebond before SMT assembly. Everything leaves a residue, and trying to clean a residue off later is basically hopeless. This may require some trickery in your SMT process
Electronics Forum | Sun Jul 06 10:07:03 EDT 2003 | MA/NY DDave
Hi Sam, Great answers so far. Let me take a stab at a few of your questions. Q1. whether this is named Pososity? I can't tell from your description. Several companies and the IPC have porosity tests to see if the Gold has good coverage of the und
Electronics Forum | Tue Nov 04 19:34:27 EST 2003 | gregoryyork
Blimey that's a problem and a half. Water Solubles will look completely different residue wise than No Cleans, pending age and solids contents No Cleans will go white powdery - watersolubles will stay oily Alternatively process reworked PCB's through
Electronics Forum | Tue Nov 11 16:01:09 EST 2003 | KSimpson
Adam, As for stripping the boards.. get them right to start with. Believe me you don't want to clean them. If you have to remove the coating most conformal coating brands offer a removal agent that has been tested on most all component ranges. IF yo
Electronics Forum | Thu Mar 04 12:34:48 EST 2004 | cyber_wolf
I know that many smaller companies clean their stencils the same way you do. If you get good results cleaning your stencils this way then I would say stick with the alcohol/wipe method. Take your stencil and put it under a microscope.If the aperture
Electronics Forum | Sat Mar 20 08:37:06 EST 2004 | Primus
The BioAct SC-10 wipes work great, but I've noticed some contamination in our solder joints after I began using them on the stencils. After cleaning the paste off the stencil with the wipes, I started spraying the stencil down with isoproponal and bl
Electronics Forum | Thu Mar 25 15:01:45 EST 2004 | patrickbruneel
Why are you guys not simply switching to No-Residue?? Residue free soldering is not a dream, it is a reality and is succesfully implemented for over a decade. I am the founder of no-residue technology, a technology developed to effectively compete w