Electronics Forum | Mon Feb 19 22:56:20 EST 2007 | davef
Russ We agree with your comments on plugging from one side only. But... We believe that it IS possible to trap process chemicals [technically, not flux] in a blind [or any other] via. This can be done by plating the via closed, rather than pluggi
Electronics Forum | Wed Apr 04 23:36:09 EDT 2007 | Brandon
Ok so.... I have a boss who thinks there is nothing wrong with stacking completed boards smt&thru in totes and submitting them to QA like this. I mean piled upon one another in a tote. Now... it has fallen on me to try to explain in a convincing mann
Electronics Forum | Fri Apr 20 07:54:25 EDT 2007 | Bob R.
I'm in the high reliability (exempt) sector and have thermal cycled hundreds of boards in the past few years. As far as which is more reliable, SnPb or SAC305, my data is similar to what the technical literature is saying, "It Depends". In low stra
Electronics Forum | Thu May 03 18:21:09 EDT 2007 | ratsalad
We just recently registered with UIC a GSM that we obtained used from another company. I don't recall exactly how much it was, but I believe it was in the $1000-$1500 range. All they are really charging you to register is the software, not the mach
Electronics Forum | Mon May 07 16:00:38 EDT 2007 | patrickbruneel
Dave, There is not really a �smart� or scientific way to check this but I know of easy ways and very effective ways. Fex. an easy way to check is with a 3� spatula, you hold the spatula at the same angle as the board and drag trough the wave simula
Electronics Forum | Thu Jul 05 14:00:21 EDT 2007 | wayne123
we have recently been having trouble with our PPS capacitors on a couple of our boards. these boards are RoHs and the Parts are RoHs compliant. these boards first run through our reflow then a batch washer some through-hole parts are placed and then
Electronics Forum | Thu Oct 11 09:01:04 EDT 2007 | actech
Jon, Thank you for your input, I think you may be correct in that the Brd./Comp. of Fid data may not be correct any more. The unit was caught up in a flash flood just high enough in our facility to get the processor board. After cleaning and drying a
Electronics Forum | Thu Oct 11 18:06:45 EDT 2007 | jmelson
Ohh, MY! Well, there is a whole block of info that is machine specific. There are 4 things on the main menu, the last one is the system calibrations. It has offsets between the primary reference (if you don't have vision, like mine) then the beam
Electronics Forum | Wed Oct 17 09:19:23 EDT 2007 | actech
This box has the I/O card mounted sideways under it's own cover on the side of the main box. The CPU card is the bottom card. The Two driver cards X/Y and R/Z are side by side and mount to a steel base pannel with there relays at the back. but even i
Electronics Forum | Mon Nov 12 09:37:17 EST 2007 | russ
You need to perform process a capability study prior to putting these controls into place. Cleaning a stencil after each pass will get ugly, solvent residues remaining in apertures etc. 2D inspection is good. Change paste every hour will get very
