Electronics Forum | Fri Nov 09 14:42:08 EST 2001 | vickt
Great advice!........Single tier feeder set-up carts are also available through Universal instruments directly for this exact purpose. Most people who really care about this changeover time have "pit-crews" that work in the component storage areas, o
Electronics Forum | Tue Oct 09 14:25:33 EDT 2001 | cal
Most PIck and place manufacturers have off line feeder set up available. Dedicating common feeder types to one side and having the other side available for job specific is also an option. *****note dedicating feeders can effect your throughput num
Electronics Forum | Tue Oct 09 12:04:37 EDT 2001 | Mike
Has anyone looked at setup reduction for machine feeders. We have made some gains through changing the flow of work but as lot sizes decrease the number of parts required remains the same. We remove all reels from the feeders after a job is complet
Electronics Forum | Sat Oct 20 00:34:57 EDT 2001 | kenbliss
Hi mike The solution is simple but two fold, first your process needs to be changed a bit, you need additional feeders to pre-stage the new P/N run and prestage the extra feeders for reload as certain higher volume components exhaust. The idea is t
Electronics Forum | Fri May 28 03:55:38 EDT 2010 | sibbe
also think of the space u can save by getting rid of the stencils and reduction in set-up time (no more stencil/blade cleening, just load the file)
Electronics Forum | Fri Apr 20 11:05:23 EDT 2001 | gcs
Just a bullet! My results are, .005" stencil thickness should measure between .0055" - .006" if your pressure is correct, metal blades and snap-off is set up correctly. Do you have aperture reductions at the QFP locations "typicial industry standard
Electronics Forum | Fri Sep 20 10:27:21 EDT 2002 | Dick Russell
Wow, you have received a lot of suggestions and opinions. Here is one more for the record. First try to improve the performance of your sub-contractor. While you are doing that start bringing in low quantities of parts to develop your in-house cap
Electronics Forum | Sun May 21 05:54:04 EDT 2000 | Sal
Currently manufacturing double-sided PCMCIA cards with a nickel/gold finish, which are 0.0235thou in thickness, using surface mount carriers. Problem we are seeing is when building the densely populated side on the second pass we are seeing lifting o
Electronics Forum | Thu Sep 21 12:03:35 EDT 2000 | Boca
We have been using a hot air knife on Electrovert equipment for a few years. It must be set up properly for a given machine, primarily the distance from the trailing edge of the wave. Sometimes the set up must be adjusted for the assembly being sol
Electronics Forum | Wed Dec 08 18:11:22 EST 1999 | Dave F
sin: You're correct, there is no defect reduction program that's perfect, in fact nothing is perfect!!!! That's why people talk about 6 sigma and not 20 sigma!!!! If you had a perfectly controlled process, you'd still have defects due to random va
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