Electronics Forum | Tue Apr 20 20:11:58 EDT 2004 | davef
First, how oxidized are these solder balls? Will the take solder using your routine flux / paste? Second, on restoring solderability, the three basic methods you can use to restore solderability on components are: * Highly active fluxes in a retinn
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 16:36:27 EDT 2004 | davef
Comments. Comments. Hell yeh, we got comments!!! You are correct to question the appearance of this solder connection. Based on your description, it's defective. Well at best, it's VERY suspect. That's the rule. If it's suspect, question it.
Electronics Forum | Tue May 04 10:59:23 EDT 2004 | Evtimov
Hi, It depends of your boards(are they for SMD or not) and how many boards you assemble. The process at all is like that: 1.Stencil printer - to adjust the paste 2. Pick and place machine(for your quantity) 3.Reflow oven Theese are the machines you
Electronics Forum | Tue May 04 16:43:41 EDT 2004 | russ
So the only difference between the "regular solderers" and the BGA people is trace repair? If that is it than you should put the pay in range with your PCB repair people. We do not pay any extra for BGA rework since all they do is wick pads (common
Electronics Forum | Tue Jun 01 16:12:49 EDT 2004 | gregf912
The 10k rebuild does not need to be applied every 3-4 months as previosly stated. A cp machine that is running 100% of the time on a 24/7 basis will tack up 10k hours in 12.4 months. Now we all know that this is impossible due to parts shortages, pro
Electronics Forum | Wed May 12 08:16:33 EDT 2004 | solderpro
woow, slow down hot rod, hey davef, you are alright by me, good to see some one out there that has hands on experience rather than a theory nut.... any how, you need a top of the line profiler, super gold mole, or Kic.... these truly are the best and
Electronics Forum | Mon May 10 20:46:25 EDT 2004 | davef
The three basic methods you can use to restore solderability on components are: * Highly active fluxes in a retinning operation. * Surface stripping chemistry and then a standard retinning operation. * Electrochemical conversion chemistry and then a
Electronics Forum | Fri May 14 13:12:00 EDT 2004 | russ
This little bit was interesting, I posted a very similar response the other day in agrrement with newbie, I was starting to get a little ticked myself and the "going back to the basics" questions that we are starting to see more and more of. I afte
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,
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