Electronics Forum | Wed Jul 09 14:47:39 EDT 2014 | deanm
I'm looking for a typical SMT placement defect rate from others in the field so I can judge whether or not we are in an acceptable range. If I give you a board with 200 components (0603, 0805, SOICs, 20mil MSOPs, tantalums, DPAKs and a few 20mil fin
Electronics Forum | Wed Jul 16 14:13:17 EDT 2014 | alexeis
Hi, If you can not rely on your programmer and the tools he uses then "double checking" can save you only materials but in time you really do not save often extend meaning. There are things you can identify before the stove, but if you use tools li
Electronics Forum | Sun Sep 21 15:48:48 EDT 2014 | gascon5383
Our company has a process standard that requires a double person check at the beginning of every run (size of run is irrelevent, whether 20 panels or 500 panels). Every changeover that occurs a first piece inspection is made before reflow. If all is
Electronics Forum | Fri Jul 18 03:21:59 EDT 2014 | skipbruce
Hello June The following infomationI find from net for you reference. OSP (Organic Solderability Preservative) 1)Preserves copper surface from oxidation until asse mbly. 2) Very thin coating (100-4000 Angstroms). 3)Applied in a vertical (dip tank
Electronics Forum | Wed Jul 16 14:21:15 EDT 2014 | toddp2012
Hi all, we have a Speedline Technologies ELEOCTROVERT/Aquastorm 200. In January we stared supplying it with pre-filterd to the DI cabinet next to machine so our large media would last longer. All was fine for about 4 months and then we started gett
Electronics Forum | Fri Jul 18 15:25:19 EDT 2014 | davef
The presence of agitation at an air / solution interface and a foaming agent causes foaming. Most water soluble fluxes contain surficants. Surficants are foaming agents. First, it's likely this foaming is caused by poor control of the temperature of
Electronics Forum | Fri Jul 18 10:10:21 EDT 2014 | proceng1
We've got an MPM Accuflex printer that generally works great, but we've had a recurring problem. The powered rail (rear rail) fails to initialize. Sometimes all it takes is restarting the machine to get it to work. At the suggestion of the repair
Electronics Forum | Mon Jul 21 06:18:15 EDT 2014 | digar
We had this. The anti-backlash nuts were binding. > We took them apart, chased the threads with a tap > and re-assembled with slightly less pre-load. > Hasn't been a problem since. > We had this. The anti-backlash nuts were binding. > We took t
Electronics Forum | Fri Jul 25 10:11:36 EDT 2014 | cgreiner
We also had this problem and found similar results with the anti-backlash nuts binding. We went through the process of cleaning the lead screws and the nuts which resolved the problem for about 6 months only to have it return. We learned that the
Electronics Forum | Fri Jul 25 10:13:01 EDT 2014 | cgreiner
We also had this problem and found similar results with the anti-backlash nuts binding. We went through the process of cleaning the lead screws and the nuts which resolved the problem for about 6 months only to have it return. We learned that the