Electronics Forum | Sat Jul 17 15:22:17 EDT 2004 | rohman23
Thanks for all the responses. I do agree with what was said, and can certainly see reasons not to try. I'll write a little more about what we do. We are a defense contractor, and as I mentioned very high mix, low volume. We only have 1 SMT line.
Electronics Forum | Fri Jul 16 15:07:11 EDT 2004 | waveroom
Good question, we are a distributor and have offered lots of different magnifiers. We finally decided to stick with only one brand. It's not the least expensive but the quality and warranty are superior to any other. That would be OC White. I replac
Electronics Forum | Thu Sep 09 11:30:03 EDT 2004 | Tim Lawrence
Hi I came across this article while writing a paper. I don't know if it's the first, but it is early wave soldering: W L Oates, "Automatic Soldering Machines for Printed Circuit Board Assemblies", IRE National Convesntion Record, Vol. 6, No. 6, pa
Electronics Forum | Fri Sep 24 13:38:16 EDT 2004 | Nick Prince
The re-use of any component has commercial implications as weel. If you check the data sheet for the component in question you will find the reflow profile, usually there will be a "Max No of Reflows". I have never seen this number higher than 2. If
Electronics Forum | Tue Aug 31 19:50:44 EDT 2004 | davef
To take our turn at keeping everyone else on the straight and narrow. For more on lead contamination of no-lead solder, look here: http://www.aimsolder.com/techarticles/Lead%20Contamination%20in%20Lead-Free%20Electronics%20Assembly.pdf [We apolog
Electronics Forum | Thu Sep 02 16:47:08 EDT 2004 | Irun
Hi all I have a question about DI water for cleaning system. What water quality should ionic exchanger produce for assembly cleaning (SMD and THT components with BGA and microwave application). What is recommend water conduction and minimal level (0.
Electronics Forum | Tue Sep 07 10:05:33 EDT 2004 | russ
Components do not have to be in the framework of the fiducials. It is recommended that the fiducials are at the outer extremeties in at least 3 corners of the assembly however. It is also a good idea to keep a minimum "keepout" area around them of
Electronics Forum | Wed Sep 15 17:50:24 EDT 2004 | GS
Hi Simon, do not forget BGA have more surface contact ( qty off balls) then a same size of QFP. I mean, theoretically unless the BGA is very heavy, it is more simple to solder mirrored PBGA then try to have QFP on bottom side to be soldered. Are ple
Electronics Forum | Wed Sep 15 11:33:12 EDT 2004 | sue ph
We are building seven different assemblies that have flex circuitry that go off in four different directions within the panel. The panels are square to facilitate flow through smt & wave solder and depanilized in solder touchup. Currently, we are usi
Electronics Forum | Thu Sep 23 02:52:21 EDT 2004 | johnwnz
olks, got one for you. What is the feeling on reusing SMT components that you have removed from an assembled PCBA? For example, you place your IC's and they are 180 deg out, you have to remove them.... but what about refiting the same devices? Are t
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