Electronics Forum | Wed Jan 22 13:31:23 EST 2003 | jonfox
Elongated slots!! Our older runs are a pain sometimes with parts (1206, 0805 chips) twisting as they go through cure. I'm sure that its not all due to the dots, but I'm sure that it doesn't help either. We don't see this effect on our runs that us
Electronics Forum | Wed Feb 19 17:27:14 EST 2003 | ryanm
I have a problem with 0805 caps and resistors randomly falling off in the wave solder machine. Currently I am placing single dots of epoxy under 0805's. The single dot is flattened down so I know that the part was placed. In the past when we double
Electronics Forum | Fri Feb 21 19:49:36 EST 2003 | MA/NY DDave
Hi Good Luck Neil, When I first saw this process described, what you are experiencing was my first visual thoughts. Partial filling as well as huge solder voids inside of the joints. I figured for low reliability product or short life maybe this t
Electronics Forum | Tue Mar 25 11:32:15 EST 2003 | MA/NY DDave
Hi Kevin, Well I or we, used to do this all the time in PiH or THT days with some small hand forming tools (dies) and also some automated ones. You already have gotten the phone numbers for a couple of the small electronic assembly hand tools place
Electronics Forum | Tue May 13 11:12:41 EDT 2003 | k_h
I currently am doing it. Keep in mind the parts are split up, such that, the chips are on one machine and the IC's and odd parts are on the second. It takes much more time to place IC's and odd parts because they need to be handled slower and often c
Electronics Forum | caldon |
Tue Jun 17 11:22:04 EDT 2003
Electronics Forum | Wed Aug 20 18:17:56 EDT 2003 | stefwitt
I guess we should differentiate between machine calibration, process reliability measurements and process capability study. For the machine calibration you use the machines own optical cameras, but for cpk or standard deviation you measure the place
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 Feb 11 18:21:39 EST 2004 | Steve
Does anybody know if there is such a thing as individual component paste stencils, and who would sell such an item? The reason I am asking is because we have instances when we build prototypes that we don't need a full stencil. We may only need to pl
Electronics Forum | Mon Mar 08 11:18:42 EST 2004 | Dave Euser
Hi everyone....I'm a student working on a short research project on industrial control algorithms - and part of the scope that we are looking at is SMT pick and place machines. I was wondering if anyone knows what type of control is used for the no
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