Electronics Forum | Tue Feb 23 13:49:20 EST 2010 | davef
There should be no problem. Recognize that the residue of some low residue fluxes turn a milky-white color when you wash them. This could freak your quality people.
Electronics Forum | Wed Feb 24 11:28:09 EST 2010 | vleasher
I apologize for being so vague. It is a standard leaded process using ALPHA OM-5100 for the SMT. So would a reduction in wash temp result in less white residue?
Electronics Forum | Wed Feb 24 10:23:04 EST 2010 | xps
60° C). Moreover (by IPC standard)... "White residues resulting from no-clean or other processes are acceptable provided the residues from chemistries used have been qualified and documented as benign...". So, use an EDX or IC analysis in order to
Electronics Forum | Thu Feb 25 03:37:25 EST 2010 | xps
Sorry, but I don't know this brand. Anyway pay attention, because if the chemistry is resin based, is difficult to clean and the residuals may be hygroscopic. So, I only can suggest you to read the data sheet and follow the instructions by the solder
Electronics Forum | Tue Feb 23 16:45:36 EST 2010 | dyoungquist
Davef is right on as usual. We are doing exactly what you do. Some smt with no clean paste then the plate through connectors on our selective solder machine using water soluble flux. We then clean with a ultrasonic water process. We do see the re
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 | 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 | Mon Jul 12 11:35:27 EDT 2004 | Pierre RICHARD
Here are some answers to my questions after a good research. I also added more definitions that could help understand this esoteric language used in assembly, specially surrounding fluxes and their use. In blue italics are comments and extracts from
Electronics Forum | Wed Oct 10 13:51:08 EDT 2007 | petep
Coilcraft has posted the following and I am wondering how you folks are handling the use of coils in a Water Soluble world. PCB Washing and Coilcraft Parts Coilcraft tests for resistance to solvents per the following specification: Resistance to s
Electronics Forum | Sat Feb 05 09:08:18 EST 2000 | Dave F
Casimir: Let me expand on something that I said in my response to your thread on ionic testing. Generally, no-clean people don�t use ROSE testing as part of their process control, because the ROSE test is essentially washing your board in DI/IPA �
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