Electronics Forum | Tue Sep 11 22:52:18 EDT 2007 | davef
Here are some options for removing OSP coatings from pads of the BGA substrates. * Leave the substrates in storage for 13-14 months. Shelf life of OSP coating is ~12 months, depending on the product. * Wash the substrates in your aqueous washer. Ea
Electronics Forum | Thu Sep 20 16:06:23 EDT 2007 | jmelson
Are these shorts occuring after reflow, or are they shorted on the incoming boards before stuffing? If the latter, is the fabricator doing electrical test? How are these boards getting past their electrical test? Especially if multilayer, there's
Electronics Forum | Sat Sep 29 09:19:28 EDT 2007 | davef
For people with a statistics background, using Minitab, SAS, Statgraphics, or Statistica is easy. However, for many others it is not so easy. Amoung, DOE software packages compatible with Microsoft Excel are: SPX XL [$250], DOE KISS [$150], DOE PRO
Electronics Forum | Fri Sep 28 18:16:19 EDT 2007 | allgood
Rob Thats really helpful, thanks. You are right in that I am looking at both ends of the spectrum, Manex is to be honest a lot for us to consider but if it really would do the job we could stretch that far. We bought CircuitCam from Aegis years ag
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 | Tue Oct 16 18:00:52 EDT 2007 | jmelson
Oh, heh heh, I DO have the manuals for the III series of machines, including the spare parts manual. Maybe I can scan the detail of the drawing in question, and see if that looks like your machine. I can also get the exact model number range that m
Electronics Forum | Mon Oct 22 09:50:54 EDT 2007 | cyber_wolf
The true way to track feeder maintenance is through a real time bar code reading system...For example Bartector. (We have never used this system nor do we receive any benefit from them) We currently have our CP6 feeders set up on a three month inter
Electronics Forum | Mon Nov 05 01:26:37 EST 2007 | jmelson
WOW! What a horror story. Well I got a Philips CSM84, having never programmed a P&P machine before, or actually ever seeing one run. I got some manuals with it that were for a different model, but they were pretty close. I had some trouble gettin
Electronics Forum | Wed Nov 07 10:30:19 EST 2007 | grantp
Hi, I did an interesting experiment today, when we had some government people in our factory to visit us. I mentioned that we went lead free well before the deadline, and it's nice none of our people need to handle anything with lead content, (they
Electronics Forum | Sat Nov 17 18:29:02 EST 2007 | bbarton
Let's face it guys...in most cases (stress the MOST!) a typical FR4 board will do the job. Few layers, low copper, not too densly populated etc...no worries. Use a reflow profile which avoids the 245-250C range, use a shorter TAL, Viola you have a go
