Electronics Forum | Mon Jun 14 14:09:23 EDT 2010 | jmedernach
Chris, There are a lot of potential causes for voids. I'll list a few below: a.) cleanliness (or lack there of) b.) Via in pad where said vias are not filled c.) reflow profile design d.) incompatible materials My knee jerk reaction would be to che
Electronics Forum | Tue Jun 29 14:55:22 EDT 2010 | rgduval
For the capacitors that Yageo analyzed... Were they taken out at representative points in the process?? ie. were samples taken from pre-assembly, pre-ICT, post-conformal coat, post-final test? You note that the parts 'seem' to be ok up to ICT. And
Electronics Forum | Wed Jul 14 13:41:40 EDT 2010 | rway
We are running SMT products and have been for some time now. First, I wanted to check with you folks to see what an acceptable FPY rate, or what you would consider and acceptable rate, is. Secondly, we are having issues primarily with product that
Electronics Forum | Wed Nov 03 14:08:55 EDT 2010 | clampron
Good Afternoon, I would throw my vote in to Mirtec as well. I also had an opportunity quite a few years ago to compare three systems side by side. At the end of the evaluation, the Mirtec stood out over the rest. Over the past several years, I was in
Electronics Forum | Thu Jan 06 12:41:37 EST 2011 | bk
That depends on what service screen you are using there are 2 of them.One is the exit to service under your exit prompt. The other is an extended version of the service program and you have to exit tpsys under the exit prompt and type in service -x w
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 | Fri May 13 14:08:39 EDT 2011 | eezday
This appears to be black-pad and is often the result of using specs that call for gold plating that is too thick. The black pad is corrosion that is created between the gold and electroless nickel during the gold plating process. This is counter in
Electronics Forum | Sun Sep 25 20:20:22 EDT 2011 | johnyq
We recently aquired an old MPM-AP25 stencil printer that printed paste with a large error (about .060 inches). I concluded camera alignment to be the cause but was surprised by the magnitude. I found the camera beam splitter prism misaligned and loos
Electronics Forum | Thu Oct 06 17:34:07 EDT 2011 | jrsmachine
Hello Tom. Thks for your response. I tryed all your suggestions. No luck. This is how it happened: Several weeks ago I allowed an inexperienced unsupervised operator to work on some program changes. When I checked back afew hours later I noticed
Electronics Forum | Sat Oct 01 20:31:19 EDT 2011 | assybkr
fishingfool, I would appear obvious that you are connected to Yestech since only inside information could make your statement in paragraph two. I hate to break it to you but a $15,000.00 ransom is exorbitant, most equipment suppliers are half if no
