Electronics Forum | Fri Jan 06 16:14:10 EST 2006 | trynders
Have had a lot of issues with our machine and was just curious if anyone else out there was having any problems with theirs. This is actully our second 3Z. Our first one had so many problems Contact took it back and replaced it with a newer one. Abou
Electronics Forum | Mon Jan 09 19:55:32 EST 2006 | davef
"Poor release" (paste hanging-up in the stencil holes) could have three main (or combination of) causes: 1 Equipment * Proper aperture area ratio provide better release * Laser cut release better than chemical etched stencil 2 Process * Snap-off dis
Electronics Forum | Fri Jan 13 10:39:53 EST 2006 | samir
Good one! I remember at my old company, the auditors, both internal and external would go immediately to the refrigerator where we kept our glue and solder paste and then they would spend most of their time there, because they were afraid of all of
Electronics Forum | Fri Jan 20 05:53:23 EST 2006 | dougs
i think it's more likely to be greasy/dirty shaft clutches, stand at the front of the machine and use the cam handle to turn the cam, while your doing this push up gently on the black top section of the shaft and try to turn the shaft, it shouldn't r
Electronics Forum | Thu Mar 30 12:57:21 EST 2006 | cyber_wolf
Fuji has said a lot of things in the past, then changed it later on. Just for the sake of argument....The guys that have trained me worked at Fuji for a minimum of 12 years. Not quite sure what Tech is talking about, but I do not recommend doing w
Electronics Forum | Tue Jan 24 19:00:15 EST 2006 | MikeF
Graham Naisbitt is definitely an expert on conformal coating, he has posted answers here for years. Check your material to see what the cure mechanism is. Most urethanes need moisture from the air to cure, the higher the relative humidity the faste
Electronics Forum | Wed Feb 08 03:35:58 EST 2006 | GS
100�C) the moisture changes in vapour/gas generating an internal pressure causing in the worst case damages like internal planes delamination, popcorn effects, degassing, ecc. So you can understand why before reflow it could be necessary to backe and
Electronics Forum | Tue Jan 31 15:15:13 EST 2006 | russ
Heat guns used improperly will definitely damage components. You must have a controlled heat gun that can be set to the max temp you want pb =215C max, Pbfree maybe 240C max. This heat gun must not be able to be adjusted or you must have total trus
Electronics Forum | Mon Feb 13 16:24:39 EST 2006 | samir
SPC was a fad of the '80's and has been mis-used by the igonorant for decades now! Doing SPC on defects is a case in point. Hell I implemented wave SPC programs before eating breakfast at 2 previous companies, and they worked great..resulting in 25
Electronics Forum | Fri Feb 10 12:09:53 EST 2006 | cyber_wolf
Russ, We use a unit called a Datapaq surveyor to monitor our ovens. Its basically a unit that a data logger rides through the oven in. It has 3 thermal couples across the top and 3 across the bottom. It takes measurements the full width of the proces
