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Electronics Forum | Mon Aug 14 15:00:46 EDT 2017 | charliedci
We run a "no clean" soldering process, class II primarily, conformal coating using a Humiseal acrylic coating, applied by machine and by brush. We have seen very few coating issues in my 10+ years from contamination by body oils. We are not using glo
Electronics Forum | Tue Oct 10 07:30:19 EDT 2017 | spoiltforchoice
TBH I think perhaps the OP deserved it, there is perfectly good explanation of Reflow and Process Window Index on Wikipedia for starters and if you want more all sorts of FREE specialist papers on things like reflowing flex circuit, lead/lead free et
Electronics Forum | Fri Oct 27 10:50:52 EDT 2017 | slthomas
Re: preheaters, YMMV, but my limited experience with SS is that without preheat these things have very limited value, even with boards that are not what you would think are thermally challenging. With preheat they seem to be able to do anything you
Electronics Forum | Thu Mar 08 10:53:58 EST 2018 | jn90z
We put components on the boards we purchase from overseas. So it depends on what you mean by make or manufacture. I realize that I didn't word that the best when I said competition. There are overseas companies that compete for our business but I was
Electronics Forum | Mon Nov 06 21:23:40 EST 2017 | wendymm
I just want to gain experience from someone who has their own opinion on my question. It seems that I have paid too much attention to the price now, but ignore other thins like public praise,company strength, customer service and so on.
Electronics Forum | Wed Jan 03 06:34:40 EST 2018 | buckcho
Hello, we used to repair them fairly easy at my previous company. Many of ours had problems, because operators bad handling. If you have a problem with feeders not lighting up, you better try to switch the pcb from one feeder to another and to check
Electronics Forum | Tue Nov 28 14:27:05 EST 2017 | emeto
Without the details I will tell you that you have too much paste. PCB Pad is probably way bigger than the contact lead surface of the part, you overprint, and in the oven this solder have nowhere to go and tilts your part. Check datasheet.Cutting sma
Electronics Forum | Tue Nov 28 11:58:58 EST 2017 | emeto
Hello all, I am about to design a panel and there are two connectors on the board that seem to be very close to the edge of the board. I am worried that they might interfere with the cutter blade. Can you tell me how close do you think a part should
Electronics Forum | Wed Nov 29 21:00:02 EST 2017 | truthseeker
Thx for following up. We have a small PCB in a defense application that has copper sulfide issues. We are using Ion chromotagraphy to track down varions ionic species including sulfates. Your post was a aha moment for me. We have a sample being analy
Electronics Forum | Thu Dec 14 14:29:53 EST 2017 | barryg
We did check for oven clearance thinking the same , but there is plenty clearance. We have however found that the problem was on several lots of PCBs. We ran a fresh lot and problem went away. There appears to be some kind of contamination on the PCb
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