Electronics Forum | Tue Apr 01 07:45:55 EDT 2008 | aj
Hi, We use the standard pin supports when necessary. Are your boards very thin i.e less than 1.6mm ? or maybe panelised ? Other things to check are Z0 placement height aswell as damaged nozzles,sticky nozzle/nozzle head , poor feeders along with t
Electronics Forum | Thu Apr 17 16:59:44 EDT 2008 | jmelson
What sort of parts are you looking for? I'd think the springs are fairly non-critical, and easily picked out of a big spring catalog. There are some E-clips and such things, but everything else (in their older feeders, at least) look totally custom
Electronics Forum | Wed Apr 16 15:44:35 EDT 2008 | jwolvans
Just a thought: if nothing else makes sense, you might want to watch the action of the edge-hold chains of the reflow oven, are they moving smoothly and uniformly around the drive gears and idlers? I've actually seen the situation where the chains we
Electronics Forum | Thu Apr 17 07:54:02 EDT 2008 | davef
Our quality types wouldn't allow: Q16 on "1up good board2.jpg", Q17 on "1up good board.jpg", or Q15 on "1up good board3.jpg". They'd probably pass Q13 on "Q13 next to Q14 no-reflow.jpg", if it wasn't part of a bigger issue. Again, you appear to have
Electronics Forum | Wed Apr 16 14:18:41 EDT 2008 | pima
Anyway thanks for any input from you Guys. Because at the moment we are trying to connect some products on one SMT platform (some short run about 100-500 boards from one product and changeover )and I just want to listen about ur experience with any k
Electronics Forum | Wed Apr 23 17:33:54 EDT 2008 | pima
so what period of times are you loosing for changeover? is it half of hour? more or less? because I think that should also be a useful indicator, how much time does it take to switch to different product if we are using panasonic,universal,fuji,phili
Electronics Forum | Fri Apr 18 10:28:59 EDT 2008 | patrickbruneel
Samir, The simple solution to your frustration is: NEVER talk technical to a manager talk numbers and $$$$. I made the same mistake in the past, I wrote long sophisticated technical reports to justify change in the process and never got anything a
Electronics Forum | Thu May 01 16:27:04 EDT 2008 | chrisawallace
As Mark stated in a different reply, we also send our Pb-free BGA's out to be re-balled with SnPb paste so that we don't have to elevate the reflow temperatures. You have to be careful regarding the individual components on your boards as although m
Electronics Forum | Fri May 02 08:44:36 EDT 2008 | realchunks
Sure you can. But I don't have the time, money or resourses to do this. I do not have the luxery of only getting SnPb parts. Wish I did, but I don't. As for temp specs, I know the specs on all my parts. We profile our ovens every month. We can
Electronics Forum | Fri May 09 14:56:37 EDT 2008 | markhoch
The paste dispensers work well as long as the humidity in your shop is properly controlled. If it gets too humid, and the paste gets "soupy", then it will take less air pressure to dispense it onto the stencil. Paste dispensers use a controlled, pre-