Electronics Forum | Thu Feb 15 10:13:01 EST 2018 | edhare
It would likely be useful to identify the yellow dust in order to determine the root cause. This can be done using SEM/EDS (e.g. http://www.semlab.com)
Electronics Forum | Thu Feb 15 07:09:52 EST 2018 | paulocabaca60
Hi many thanks for your help, I mean reflow oven.
Electronics Forum | Thu Feb 15 10:26:26 EST 2018 | paulocabaca60
Correct, we must do it. Many thanks for your help. Regards Paulo
Electronics Forum | Wed Feb 07 07:55:45 EST 2018 | paulocabaca60
Hi Recently have several components inside the machine covered with this yellow dust. It is visible that some components are almost obstructed after a week working. We never seen this kind of dirt inside the machines, and we don’t know the origin o
Electronics Forum | Thu Feb 15 10:02:27 EST 2018 | paulocabaca60
The question is that we are cleaning almost once per month and that is starting we we start producing a 8layers boards
Electronics Forum | Thu Feb 15 08:00:35 EST 2018 | cbart
Hi many thanks for your help, I mean reflow > oven. Ok, yes, it sounds like the debris that builds up on fans/heaters/ducting may be making its way onto you product. if the exhaust fan that vents your machine failed this could be the cause, or it
Electronics Forum | Fri Sep 11 15:11:23 EDT 1998 | Dave Celestian
I am running composite fixtures on my wave solder machine and after about 500 passes each (1 month)they are showing serious signs of wear in that the composite surface is bubbling up and glass fibers are also starting to show. The problem here is t
Electronics Forum | Sat Feb 27 15:14:08 EST 2021 | researchmfg
Does anyone know what defect in SMT will be caused by dust contamination? What dust level in SMT environment is recommended? Recently an audit come to factory and ask we must control the amount of dust. Why SMT line need to control the dust level?
Electronics Forum | Mon Mar 15 01:38:46 EDT 2021 | researchmfg
Thanks for the answer. Did you really find the dust block the nozzle and sensor? By the way, If SMT environment need to control the dust then what size of dust need to be controlled? 0.3um, 0.5um or 10um?
Electronics Forum | Tue Mar 09 20:58:48 EST 2021 | emeto
This have been solved by storing the boards right in all places I have worked. You open a pack, label and use. If you collect dust in such a small time window, you should totally start paying for cleaning service of the building. Electronics we build
