Electronics Forum | Thu Apr 18 19:00:06 EDT 2013 | jorge_quijano
Hola.. I have several PCBs with some kind of oxidation, my supplier has told me that there is no problem with that oxidation, it will have no effet on soldering and press fit processes, PCBs were received 1 year ago, but they are well packaged and h
Electronics Forum | Mon Apr 29 01:29:29 EDT 2013 | aemery
If your current problem with the conveyor speed was caused by the SMEMA issue, maybe you have a Board #1 problem. The SMEMA communicates to the computer through Board #1. The input signal from the speed encoder and the output analog voltage to the
Electronics Forum | Sat May 18 10:21:09 EDT 2013 | davef
isd.jww: Comments are: * Current thinking has flux volatiles being the major contributor to voiding, not scavanging by via * I have no reason to think that 0.3mm via won't gladly accept solder. Plug them, if that's a concern. * If your concern is ina
Electronics Forum | Thu May 23 13:17:29 EDT 2013 | zrunkle_api
After I write a new program the machine started doing what I would call a double board stop check on the board the first is like 12" from the front end of the machine and the other is in the middle where it should be. Only problem is once the first
Electronics Forum | Wed May 29 18:52:59 EDT 2013 | navworx
Would like opinions on which brand of leaded water soluble solder has the longest print life. we're currently using Alpha WS-809. Each board goes through the printer every 15 minutes or so, and we wind up re-printing most boards as the solder isn't
Electronics Forum | Wed Jun 19 07:24:10 EDT 2013 | bobpan
Hello Rollon, There needs to be a contrast between the sticker and board. The manual gives and example of a round red sticker. If you still cant still make this work.....Do the following. Run the machine and after it finds fiducials press stop on the
Electronics Forum | Thu Aug 08 12:10:18 EDT 2013 | horchak
I have never heard of steaming PCBs. Wouldn't this induce moisture into the PCB and cause more delamination and out gassing? The only way to fix delamination, providing your manufacturing processes are in line is to find a new PCB fab house that can
Electronics Forum | Mon Oct 14 10:53:28 EDT 2013 | emeto
0.5 if you use electroformed stencil or > 0.8 if you use laser cut. 2. Always use fresh paste 3. Uses the right printer parameters for your paste(for example Alpha likes fast release of the stencil from the board - in DEK this is called separation s
Electronics Forum | Fri Oct 18 11:56:22 EDT 2013 | hegemon
You might try testing prior to using the Silicone if possible. Also you might try to qualify your cleaning process rather than the individual board. Clean an unrelated assembly and test it in your Ionagraph. Assuming it passes, Clean your subject a
Electronics Forum | Mon Oct 28 08:27:53 EDT 2013 | emeto
There are many profilers(physical devices) on the market. Most of them have software that makes predictions based on information about the paste, oven model...., but I wouldn't trust the predictor as on your boards you will have different parameters
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