Electronics Forum | Fri Aug 27 20:13:41 EDT 2010 | whitewing
Have you tried replacing the LEDs in the illuminator? This is about the only 'wear' mechanism on a vision system, and should be pretty easy to fix.
Electronics Forum | Thu Sep 02 15:03:57 EDT 2010 | ccouture
a quick search on "life expectancy of linear bearings" will give you a clue on how any pick&place machine performance will decline with time. It's measured in distance travelled. So the more you use them, the more they wear out, the less precise the
Electronics Forum | Fri Aug 27 12:28:34 EDT 2010 | patrickbruneel
Under certain circumstances, Toyota says, solder connections may develop a crack that creates unpredictable behavior in the circuit. Look here: http://www.thecarconnection.com/marty-blog/1048692_toyota-recalls-1-1-mi
Electronics Forum | Wed Sep 01 07:44:36 EDT 2010 | sachu_70
Dear SMT-manufacturer, I would recommend to also have other device joints on board X-ray inspected to understand if void formations are seen across the board or confined only to one component. If seen across, your "Reflow Profile" could be the cause
Electronics Forum | Wed Sep 01 10:15:44 EDT 2010 | arjan
Dear Sachu_70, During the tests we also checkt other devices, there are a few small voids visible, but they are marginal. We only see large voids in this device. During the testruns we tried several reflow profiles, but without large succes.
Electronics Forum | Thu Sep 02 04:51:35 EDT 2010 | sachu_70
Seems interesting ... I am certain this could be resolved. But first one question: How did you monitor the reflow profile at this component? How and where was the thermocouple connected?
Electronics Forum | Thu Sep 02 05:08:12 EDT 2010 | arjan
We drilled a hole in the centre of the LGA and put the thermocouple inside, so we measure the exact temperature between PCB and device.
Electronics Forum | Mon Aug 30 09:17:28 EDT 2010 | sreid
Yes we have a set Hot-Tweezers. I should have stated above that all of the resistors have been removed already and the new parts are being soldered on. I was just looking for a quicker method of rework. But thanks for the ideas.
Electronics Forum | Mon Aug 30 10:18:32 EDT 2010 | ifrydr
Hello - Can anyone offer any insight or info on the particualr ERP/MRP systems used at your company? We currently have a small system and are looking to upgrade but I would really like feedback on systems used in a CM/EMS environment. Any input is
Electronics Forum | Mon Aug 30 14:46:56 EDT 2010 | davef
Sure, you should be able to measure the copper oxide thickness on the inner layers of a PCB when doing sections.
