Electronics Forum | Thu Apr 17 10:44:24 EDT 2008 | rculpepp
I'd suspect contamination also, possibly from the board supplier. Sr. Tech's post mentioned what looks like a blister on the board, in the upper right of the Q19 photo. This could very well be a contaminate from the PWB fab shop. I've seen similar pr
Electronics Forum | Fri Apr 25 11:38:22 EDT 2008 | vortex337
Our company has run into an issue with de-wetting of lead free components. Our profile is dead on with paste manufacturers specs. We have had this issue with both gold immersed, and hot air leveled boards. We have tried three different solder paste m
Electronics Forum | Wed Jan 07 00:18:14 EST 2009 | milanrit
Recently on one of my assemblies(sn/pb) I started seeing leaded BGA failure at functinal test for opens, but when I inspected them through 5DX and ERSA Scope it doesnt seem like there is any opens or insufficient and half no. of boards passed functio
Electronics Forum | Fri Jun 12 17:26:48 EDT 2009 | sadamson
I'm not the Asymtek expert on this subject but you have to run a ROI study. When you buy a system you have to look at how much time you are spending on masking. If every job is a one board special, then you may be better off spraying on a coating. Ho
Electronics Forum | Thu Dec 02 09:07:18 EST 2010 | patrickbruneel
Hi Jacki, Water soluble flux was for the majority used in the USA in the 80’s and 90’s under the motto “flux your problems away” (water soluble fluxes are very active). Water soluble fluxes have never been popular in the rest of the world. The main
Electronics Forum | Mon Mar 21 02:41:29 EDT 2011 | kemasta
Hi It's me again. Our products need to pass a chamber test 45c/36hrs after the PCBA completed batch of functional tests and assemble in to case. We found 1 unit was functioning for 24hours in the chamber, but hang after that. We tried to re-boot the
Electronics Forum | Sun Jan 20 17:47:41 EST 2013 | ngineer
Bobpan, It's been a while, and I haven't really had a need for this (simple boards, with larger components), but now I'm back to a board that needs this. I only have options for HOLD, PASS or VISION under transport in the Sequence Programming.
Electronics Forum | Tue Jul 31 10:16:59 EDT 2012 | silverbullet
We are in the process of revamping our conformal coating room. Presently, we have a C-740 Nordson Asymtek coating machine that sprays most of our boards with Dow Corning 2577. We are spending a lot of time masking boards and are thinking of upgrading
Electronics Forum | Fri Apr 05 20:00:08 EDT 2013 | microaide
I cheated on the escapement length for the SOLIC plate and got through Feeder Optimization and Generate Program without any errors. Some progress, but no I cant figure out how to the the generated program into the central controllers on the Quad IVc
Electronics Forum | Sat Jun 01 11:15:34 EDT 2013 | aemery
Delete the program and start over. I can't get a clear understanding the way you described the error, but it does sound like you have some kind of detent issue or a board stop programming issue. Depending on the configuration of your machine and th
