Electronics Forum | Sun Nov 06 06:16:14 EST 2005 | grantp
Hi, We have been running Soltec reflow and wave, and are very happy with them. The software on the Soltec oven is great, but a bit stupid on the wave. However they are both great units, and after about 38,000 PCB's they are still totally clean with
Electronics Forum | Fri Nov 04 08:10:04 EST 2005 | Amol
Hi all, If i know my field conditions and the required lifespan of the final product, how can i decide what thermal cycle to use for ATC to qualify the product?? I have the JEDEC standards for min-max temps and dwells, but how do i translate them int
Electronics Forum | Fri Nov 04 11:18:34 EST 2005 | patrickbruneel
I agree with Dave 100%, ATC will expose the board and components weaknesses and potential design problems and/or the need for conformal coating. The life span can only be predicted and/or extended by well-documented field failure analyses history and
Electronics Forum | Sat Nov 05 07:33:14 EST 2005 | milroyperera
Hi, I see that the wave angle of the wave solder machine takes a major part on soldering SMDs if they are assemlbed with glue. To avoid the shadowing effect and bridging what would be the best angel of the wave for Sn/Pb & Pb-free soldering processs
Electronics Forum | Sun Nov 06 13:12:17 EST 2005 | sk
Hello, I use Siemens MS128 & HS180. I need to place a lot of TO-252AA, SOT223, ... components. At the moment I use only mechanical centering but I want to center these components opticaly. There is no problem to center chips and other symetrical com
Electronics Forum | Wed Nov 09 07:16:44 EST 2005 | pjc
Besides IPA, here is a list of links to cleaning agent suppliers besides Zestron, Vigon is a very good cleaning agent: http://www.envirosense.com/ http://www.kyzen.com/ http://www.petroferm.com/ If you give them your material mfr. and part numbe
Electronics Forum | Mon Nov 07 08:27:56 EST 2005 | chunks
It could be you are drying out your solder paste. Most flux formulations are alcohol based and after a few hours can dry out. This can can lead to dewetting and solder balling as well. Especially if you do not homeplate your R's and C's. A simple
Electronics Forum | Mon Nov 07 09:57:43 EST 2005 | james
Does anyone else know where you can purchase parts for quad 8mm feeders instead of directly buying them from TYCO. In the past 2 months their costs went up over 50%. I order the pins already from another vendor but that is it. Thanks
Electronics Forum | Mon Nov 07 16:34:55 EST 2005 | CW
If I am putting chip capacitors on a .063 FR4 board, what size package should we stay away from to avoid cracking? If I use 2 mil copper on the outside layers of a PCB, am I limited to what pitch of parts I can use? Specifically, will using 0603
Electronics Forum | Tue Nov 08 20:20:32 EST 2005 | davef
Necessary tools are: * Chisel * Ball peen hammer After you buy two new nozzles, keep one in a baby food jar filled with your underfill suppliers recommended solvent for half the shift. At the break, swap the dirty nozzle on the machine with the cle
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