Electronics Forum | Thu Nov 30 21:06:02 EST 2000 | Dave F
Tell me where I can learn more about vacuum casting and its application to solder paste, please.
Electronics Forum | Mon Nov 20 13:18:38 EST 2000 | Steve Schrader
Is anyone populating boards with LGA's on a production basis? If so, what process issues should I be concerned with and what challenges do they present that would be different from BGA assembly? Thanks. Steve
Electronics Forum | Sun Nov 19 22:24:38 EST 2000 | qinongzhu
I am finding a SMT assembly system for photoping/R&D application. Who can give me some information about suppliers ? thanks
Electronics Forum | Tue Nov 21 09:22:38 EST 2000 | Stefan Witte
In case you are looking for prototyping ( manual, semi/automatic )benchtop machines you may want to concider Manncorp or Fritsch. Search this forum for prototype.
Electronics Forum | Fri Nov 17 16:33:10 EST 2000 | Michael Parker
20X magnification, using 0.5 mil accuracy, is helpful. I have a MicroVU system for geometric measurements in my Receiving Inspection, which is used to also measure the new stencils to ensure aperture reductions requested are actually provided by the
Electronics Forum | Thu Nov 16 18:00:37 EST 2000 | Dave F
Please consider the 48 postings in the SMTnet Archives [under a search for ... benchmark*] as a starting point for your investigation.
Electronics Forum | Thu Nov 16 18:04:40 EST 2000 | Dave F
We've not seen "pick problems". We've seen "release after pick problems" caused by adhesive on components, recently. Could be the came thing, though.
Electronics Forum | Fri Nov 17 09:29:27 EST 2000 | CAL
Some more information is needed. Is there a machine error indicating a mispick? Or a vision error Component missing? I am not as familiar with UIC machines as I am with Siemens but here is my $.02 anyway. Try shimming the feeder under the pick up pos
Electronics Forum | Fri Nov 17 11:52:41 EST 2000 | Stefan Witte
I've seen problems where the component was slightly thicker than the tape and popped out of the pocket upon transport. Is the component still in the pocket after mispick? Do you have access to a high speed camera or could rent one for a day?
Electronics Forum | Thu Nov 16 07:32:51 EST 2000 | R Missimer
I have seen several patents on this process, and would discuss with you my understanding. I would also be interested in how things worked out for you, and your findings overall. Please advise RMissimer@ieee.org
