Electronics Forum | Thu Mar 18 16:39:14 EST 2004 | Jed Johnson
A few good points have been made here: The profile could be ramping too fast. The profile could be gettting too hot. The profile may need to have more "soak" time before reflow to allow the board temperatue to equalize and the board to "relax" and st
Electronics Forum | Mon Mar 08 04:52:25 EST 2004 | martin
Hello i have some problem with our dynapert. Wonder if you could give me some advise. The problem is our machine worked not so well so we started to take out one by one of the cards and check all ic's so they was properly inserted. But when we ca
Electronics Forum | Tue Apr 13 13:18:50 EDT 2004 | arcandspark
David F. thanks for information about the copper plating issues, I will check out the Indium site as you suggest. You are right about Thermount being Unreworkable, but T.I. makes us do it due to the cost of these RF proto types, $250 each bard board.
Electronics Forum | Tue Apr 13 21:33:48 EDT 2004 | qualitel
Hi Dreamsniper, It seen this is the major issue had been occurs you.( We had face all this issue last time too) We had done a lot of areospace products before and most of ours products is a must on class 3 spec. BGA is not that tough t
Electronics Forum | Thu Apr 15 01:29:35 EDT 2004 | pyro747
Hello Everyone, I am having a pin chain speed problem. The speed of the chain will slow down after start up of the oven. Example if you set the conveyer to run at 41 in/min, as the oven warms up of conveyer will slow down phycally but won't chan
Electronics Forum | Fri Apr 23 11:33:56 EDT 2004 | Ron Herbert
Dreamy, Adding chemistry to the wash section in a cleaner does have its advantages. It reduces the surface tension of the liquid and will remove contaminates such as fingerprints. It does however complicate the process in respect to water treatment
Electronics Forum | Fri Apr 23 22:42:13 EDT 2004 | ethercom
Thanks for the input Pete. I am using CP4 8x2 feeders. I have tried first with 0.7mm nozzle. Although pick up was OK, the camera saw a pregnant 0402 part which is as you know is 1mm by 0.5mm. I then moved to specially made 0.6mm nozzle to minimise th
Electronics Forum | Fri Apr 30 22:45:59 EDT 2004 | Bryan She
we can test the defects with multimeter after reflow ,before ICT.and if we replace this damaged parts with good ones.everthing is ok.I'm sure this part is damaged during reflow,but why not other 19 same parts of the 20 on each board?we attach a therm
Electronics Forum | Thu May 06 12:44:13 EDT 2004 | rob_thomas
Intel is very specific in their recommendations regarding moisture sensitivity.Check ou the following link: http://www.intel.com/design/Quality/icstorage/moist_classify.htm They also have plenty of other info in the developer side.They also have a do
Electronics Forum | Thu Oct 21 06:26:50 EDT 2004 | dennispoquiz
Right. Fiducial comes with the CAD data or the gerber files. If it doesnt, and you need to create fiducial coordinates, you may use a digitizer or a caliper and make use of the reference pin as the origin. Now if the fiducial camera focus is way out,
