Electronics Forum | Thu Mar 31 19:23:30 EST 2005 | bobpan
After you press the space bar.....wait.....and then....type in quad or oven.......it is caps sensitive and i cant remember if you need lower case or upper....... good luck
Electronics Forum | Thu Dec 04 14:31:59 EST 2003 | irun
Hallo We are going to clean PCb after assembly (SMD and THT) due to conformal coating. It is small value production with elements on PCB like BGA, QFP. What you recommend or suggest to use : ultrasonic? , spray wash? or something like dish wash???.
Electronics Forum | Thu Jan 15 15:08:43 EST 2004 | mrmaint
Are your qfp's being stored properly. I have seen this in the past and it turned out to be a moisture issue. We saw most of the problems on the corners. The component would swell during the reflow process thus lifting the corners. After baking the re
Electronics Forum | Thu Jan 29 18:01:20 EST 2004 | davef
Rethinking to Ramp / Soak: Yano, staying with ramp might not be all that bad after all, just decrease the ramp / slow-down the conveyor.
Electronics Forum | Mon Feb 02 14:42:20 EST 2004 | fritschusa
Do you bake the boards after 30 minute submersion? Parts and boards are netoriously hydroscopic. What do you do to combat organcis in solution? How do you know your boards are "clean"? Clean is differnet things to different people. Just currious
Electronics Forum | Thu Feb 19 12:37:46 EST 2004 | MRMAINT
LOOKING FOR THE PROS AND CONS OF BOTH WATER SOLUBLE AND NO CLEAN PROCESS MATERIALS AS IT APPLIES TO BGA REFLOW.IS IT POSSIBLE TO REMOVE ALL W/S FLUX AFTER INLINE WASHING. THANKS MRMAINT
Electronics Forum | Tue Feb 24 08:57:28 EST 2004 | VE
From my experience, stencil thickness should be determined by your minimum component lead pitch and squeegee pressure will be determine by the type of squeegees you are using. Best method of checking whether or not your screen printer is set up and
Electronics Forum | Mon Mar 08 15:59:51 EST 2004 | mrmaint
Looking for warranty information on BGA packages. Specificaly what type of warranty if any, after reballing and reinstalling the BGA. Does reflow more than 2 times void this. Thanks MrMaint
Electronics Forum | Tue Mar 09 14:45:22 EST 2004 | Sr. Tech
Ummm....cummon Claude give me a little more credit than that. I understand supply and demand. That's not really the point I am after here, but anyways....carry on.
Electronics Forum | Fri Mar 12 15:57:30 EST 2004 | jseagle
Check the cables first, they get damaged after a while by the turntable for the monitor, lots of bending. We had to replace our cables. Also, have you checked the monitor? We had to replace ours. Our 3AV is 8 years old. James
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