Electronics Forum | Thu Oct 30 21:55:13 EDT 2014 | davef
Why soldering issues? I'd guess the nickel is corroded. It is very difficult to solder to oxidized nickel. Your SAC305 would get kicked all the way down the conveyor by nickel oxide. A lack of Ni-Sn-IMC formation will confirm this dewetting . What's
Electronics Forum | Tue Oct 28 18:58:05 EDT 2014 | rangarajd
You might want to consider using a stepped stencil. We have tried using a 5 mils with an increased aperture size to compensate for the lost solder volume, if you were to use a 6 mils. While the yield was good, we'd still get random opens. With a 6 m
Electronics Forum | Fri Oct 31 14:09:07 EDT 2014 | wbrenner
Having a problem with a DEK printer. In the back to front motion, getting poor ramdom paste volume on micro BGA pads. Other BGA 1 mm pads are fine. The front to back motion is fine. Any throufghts on this directional issue. Ran ~200 panels no pr
Electronics Forum | Thu Jan 29 15:27:54 EST 2015 | markhoch
I agree with SWAG on this. Nano Coatings make a big difference on paste release. I found when placed on the topside of the stencil, it also helps to reduce stencil wear, though others complained that it affected the solder roll, so most stencil house
Electronics Forum | Mon Nov 03 22:38:39 EST 2014 | dustind
Hi there! I'm an engineering student from Toronto, ON looking for someone to mount a MEMS microphone for me for a school design project. Trouble is, I need a reflow oven for the proper surface mount and my university doesn't have access to one. K
Electronics Forum | Sun Nov 09 15:03:20 EST 2014 | warwolf
Google doesn't return anything with this one. Your best bet would be to take them out and look for obvious damage, check that the relays are working/fuses are okay and what not. If its anything like the PLC that has died then you'll be out of luck.
Electronics Forum | Thu Nov 06 14:24:52 EST 2014 | wolverine
As part of the process of assembly, we have to scuff the surface of our board around the border about a half inch in from the edge before application of an adhesive. We have been doing this by hand with 60 grit sandpaper, we are looking for a way to
Electronics Forum | Fri Nov 07 03:46:09 EST 2014 | philc
Just wondering why you need to scuff the surface at all, as a decent glue should take to the PCB material anyway. However, it may be a customer requirement, so you have to do it. Have you thought about getting the PCB's made with a rough surface wh
Electronics Forum | Fri Nov 07 06:45:13 EST 2014 | cot628
Has anybody had issues with the Mydata centering jaws causing esd and part damage. I understand we can lower the force on the components but ESD is my main concern. In the past I heard of companies testing the centering jaws because of this concern.
Electronics Forum | Fri Nov 07 11:13:35 EST 2014 | dyoungquist
We have run Mydata machines for 10+ years with no ESD damage from the machine itself that we know of. Can you tell us how you have verified it is the machine causing the ESD damage? It seems to me the ESD damage would be far more likely coming from
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