Electronics Forum | Thu Apr 28 04:16:53 EDT 2016 | sarason
Which chemicals do you need and what process are you running? PCB manufacture is a fairly well understood , but there are quite a few complex processes. To end up with a board. there are a few small specialist suppliers like Think/Tinker and MG Chemi
Electronics Forum | Sat Jun 12 17:01:44 EDT 1999 | Murray Pulman
We are using so called no-clean fluxws for our small batch production, however the results are not always very visualy pleasing with white powdery deposits being the norm. I would like advise on the best avenue to explore for a small batch cleaning s
Electronics Forum | Tue Oct 29 21:27:21 EDT 2019 | aqueous
It depends on the flux type. If it's water soluble, it should be cleaned soon after reflow because OA flux remains active after reflow. If it's rosin or no-clean (low-residue), then the only concern is the longer wait time, the more difficult it will
Electronics Forum | Tue Apr 13 19:47:05 EDT 2004 | davef
Glue has different mechanical, thermal, and electrical properties than solder. That's why all these very nice no-lead people are furiously trying to gin-up some wacky solder alloy, rather than using glue. Among the papers in the SMTA Knowledge base
Electronics Forum | Mon Apr 01 19:12:16 EST 2002 | Mike Konrad
�Cheap� is relevant. Is $ 3,500 for equipment cheap or expensive? If $ 3,500 is cheap, than we have a solution for you. If $ 3,500 is expensive, then purchase pre-saturated chemical wipes, latex gloves and a hazardous waste bin. As for �effective
Electronics Forum | Wed Nov 09 07:22:28 EST 2005 | davef
No. Aqueous Technologies, Kyzen, Petroferm, Zestron, Alpha Metals and many more companies have tested their chemical for use with many different production materials and should be able to discuss the effectiveness of their chemical. Beyond that, ma
Electronics Forum | Fri Jan 19 20:55:56 EST 2007 | Mike Konrad
The answer depends on the cleaning / defluxing method. There are many fine chemicals available. One must first consider the cleaning method, then safety (environment and operator), then cost. For automated board cleaners (defluxers), consider th
Electronics Forum | Wed Feb 18 10:15:04 EST 2004 | jdumont
We are having problems removing the flux residue from our boards in our batch cleaner. We use Indium SMQ92J which I hear is notoriously difficult to remove. Can anyone suggest a similar paste (price/performance) that has better results with cleaning
Electronics Forum | Fri Feb 05 14:29:14 EST 2010 | kaz
the board in question is from Foba Laser Engraver, it's a surface contamination coming from.. everywhere, a lot of moving parts that are lubricated. I'm now studding chemicals that we may use for our kind of rework & cleaning. We may think of modifyi
Electronics Forum | Fri Jan 29 21:31:46 EST 2010 | aqueous
I would recommend the following paper entitled "Cleaning for Reliability Post QFN Rework" by Mike Bixenman (Kyzen) and myself (Aqueous Technologies). While it discussed cleaning under QFN's in a batch environment, it is also applicable to cleaning u
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