Electronics Forum | Sat Jun 29 10:05:54 EDT 2002 | davef
First, it is very reputable that your supplier is giving you notification of this product change. Second, comments on the previous discussion are: * Sales-types do good things, but most times commenting on technical issues is better left to others.
Electronics Forum | Thu Jun 27 11:22:03 EDT 2002 | robbied
Hi there. We have had an out of control reflow oven that has allowed its temperature to fluctuate by up to +/- 20 deg C from set point in very short periods of time. We found the root cause of the problem and fixed it, but by then we had already run
Electronics Forum | Mon Jul 01 20:42:54 EDT 2002 | davef
Comments [questions] are: * It�s strange that an uggie ol� SOIC, 50 pitch, BIG honkin� solder pad, kinda thang is failing. Sumpin aint kosher, yano? * Where is the failure occurring [ie, lead to pad, pad to board, etc]? Talk about the breadth and di
Electronics Forum | Mon Jul 01 20:44:17 EDT 2002 | davef
Actually, the white res were caused by the water carrier in your Lonco 23F reacting with the res from the nc flux used to solder the component in place. Comments are: * Some nc flux res are cleanable, some are not. Your supplier [Alpha?] can probab
Electronics Forum | Tue Jul 02 14:24:30 EDT 2002 | paul_bmc
My question is refering to "stencil life". How accurate is this and is this something I can go by. The solder paste I am using is Kester R562, R562 specifications state that it has a 12 hour stencil life, optimal temp ranges 70-77 F, 35-65% RH. Ou
Electronics Forum | Wed Jul 03 07:40:48 EDT 2002 | Yannick
Hi, WE are making some test with this kind of component and aperture and here what we think. when you use a home plate aperture it's seem that the component is not lenght enought to have a good solder but maybe is our CAD guy that didn't make a
Electronics Forum | Tue Jul 09 08:29:10 EDT 2002 | r_sturdevant
I agree with others here who have questioned the amount of solder and reliability of the joint when using this aperture shape. I have had experience with these with MELFS, and the main issue I've seen comes when cleaning the stencil - all those littl
Electronics Forum | Wed Jul 03 10:34:35 EDT 2002 | davef
Suggestions are: * Convince yourself that your paste printing and paste control processes are in control. * Convince yourself you oven is in-control and capable. * Get one of those FREE software packages from the profiler companies [ie, KIC, ECD, etc
Electronics Forum | Wed Jul 03 15:38:37 EDT 2002 | mantis
We have used MCs F4g and fujicam,and i can definetly recommend going with fujicam.Its GUI is very easy to understand and generating programs couldnt be easier.Although it will probably take a little while to adjust from MCS.F4g was fuji's attempt at
Electronics Forum | Wed Jul 03 20:18:50 EDT 2002 | Dreamsniper
Vapor Phase, Nitrogen Oven, Convective Oven? Which among the above 3 ovens do I need to process my BGA's and Fine pitch on a 6 to 12 layer board. Which will give me best results? Inert type oven or just a convective oven? Another thing is what will
