Electronics Forum | Fri Oct 11 17:30:37 EDT 2002 | peterson
Ok, I can't resist. I agree that a rep should be allowed to contribute if he/she identifies themselves. There will always be a conflict between technology/information and sales. Here's another example. If you are reading say, Circuits Assembly or SMT
Electronics Forum | Mon Oct 14 16:43:20 EDT 2002 | seand
Hey Peterson, Just as another resource, I've seen Circuits Assembly Magazine post equipment surveys in their website. I believe there should be a link on their site at http://www.circuitsassembly.com The survey index I noticed was at http://www.ci
Electronics Forum | Wed Oct 23 11:59:52 EDT 2002 | slthomas
Yeah, but the one's you're typing aren't displayed that way to me, anyway. They're all 00000000000000000000000000's. Hmmmm, let's see what happens when I post this: ° o O Those that I just typed all show up the way you apparently expect them to,
Electronics Forum | Tue Oct 29 15:55:16 EST 2002 | babe
If you are using a low end hot air system IE: Weller, Hakko or Pace then your problems are with the system and not necessarily with your process. However process is important. We have found by inspection with an Ersa Scope (BGA inspection system) tha
Electronics Forum | Thu Oct 31 16:13:46 EST 2002 | babe
If your processing with Nitrogen, tombstoning can be caused by your cooling rate. Go thru the solid/liquid phase of the solder slower..iN other words as you transition into or out of the liquidus pahse if 63/37 alloy 183C, ensure that your Delta are
Electronics Forum | Thu Nov 07 07:53:27 EST 2002 | cyber_wolf
Dr. Ning Cheng Lee from Indium Corp. of America has written papers on this phenomenon.Perhaps they would be willing to assist you. I am pretty sure I know exactly what you are talking about. We see this as well.Does it kinda resemble a disturbed sol
Electronics Forum | Wed Nov 20 16:27:15 EST 2002 | pjc
FYI: MPM does in fact offer alternate board support tooling than the vacuum box system. They have the X and Y snugger tooling, which clamps the board and uses magnetic support pins. If you are looking at a used UP2000, check to see what tooling it ha
Electronics Forum | Mon Nov 11 10:29:37 EST 2002 | Yannick
Hi, I'm beginnig working with BGA and with test I made I see some Void in it. I know that IPc have something on it. But I would appreciate if someone who have a good knowkledge about it contact me at: yb@m2s.ca Or can you give me some hint t
Electronics Forum | Fri Nov 22 08:57:56 EST 2002 | davef
Q1: What do you mean by "if the board is manufactured properly"? A2: If the epoxy is noy cured prooperly, for instance, the copper will not be well attached to the glass. So, peel strength will be lower. Q2: I don't believe that the peel off/or lif
Electronics Forum | Tue Apr 29 12:35:03 EDT 2003 | stepheno
Different viruses have different lifespans outside the host. HIV is something like a few seconds. The flu is something like 12 hours. Sars is something like 24 hrs. There are a lot more deadlier deseases. I think you would have a much greater chance
