Electronics Forum | Mon Apr 15 20:03:59 EDT 2002 | Jones
They work great as long as your conveyor speed has been calibrated and checked on some type of PM schedule. On some oven types these sensors can warn you to possible problems with the conveyor speed. Say the oven is calculating that the board is movi
Electronics Forum | Fri Aug 30 17:33:20 EDT 2002 | slthomas
Thanks, guys. Hi Larry, long time no "see". Dave, 60k dots out of a Camalot 2800 does not a "Dispenser Boy" make. :P I'd print them in a heartbeat if the proximity to radial leads didn't necessitate me placing radials first. Oh, wait, I'd have to
Electronics Forum | Tue Oct 14 23:40:36 EDT 2003 | Dean
Here is a tip. Do an evaluation on materials. DO not trust what anyone says about solder paste. There are just too may "experts" out there peddling the brand of the week. You can begin with the brands listed, but do your homework. You know your
Electronics Forum | Tue Oct 14 23:59:49 EDT 2003 | MA/NY DDave
Hi I am going to take another direction. Go to some classes, and buy some of the books, or hire a consultant to get you up fast. A consultant would be my first choice for speed and accuracy. National Training Center for Microelectronics in Bethleh
Electronics Forum | Wed Oct 15 12:03:11 EDT 2003 | blnorman
What works in Alaska will probably not work as well in Florida. We have solder paste vendors give us direction with their specific paste, but we also impart our required process parameters on their paste. For instance, here in Alabama in the summ
Electronics Forum | Mon Oct 20 11:48:34 EDT 2003 | blnorman
Who said there was NO evaluation? The paste we chose was evaluated based on a 20 point test score as well as material compatibility. Once we introduced it to manufacturing each line had problems. For one manufacturing treated it as a drop in repla
Electronics Forum | Sun Nov 20 01:27:21 EST 2005 | C. Kolokoy
Try an experiment where you profile the assembly with 3 consecutive boards in the oven spaced just 1" apart versus just 6" apart and then 12" apart. You figure most ovens have about 12 - 16" heating zones, so for your typical 8"x8" PCB, you'd have w
Electronics Forum | Tue Jan 31 12:13:26 EST 2006 | Calvin Kolokoy
Today's regular Sn-Pb paste chemistries are designed to run at higher peak temperatures ensuring that your lead-free alloys will coalesce with your regular Sn-Pb solder. That being said, it is do-able to solder both types in one oven. Generally, wit
Electronics Forum | Wed Feb 01 03:38:56 EST 2006 | Jose Luis
Hi all, I'm working in Military Production and then, We have an exception about RoHS (LEAD FREE), but, because we use "normal" components, in this moments, a lot of components have LEAD FREE terminations, and we think that after of 1st July, we wo'nt
Electronics Forum | Thu Oct 05 16:03:31 EDT 2006 | C.K. the Flip
I had horrible experiences with a certain brand on multiple types of BGA's (I choose not to mention the brand). The paste was nice and active, but almost to a fault when it came to BGA's. Finally, I arrived at a profile with a more agressive ramp u
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