Electronics Forum | Mon Aug 31 13:04:13 EDT 2009 | bandjwet
We have tried air drying (using shop air) our SMT stencil post sonic cleaning. This technique only "pushes" the water droplet around to the other side of the stencil. Air drying causes the "Invar" stencils to rust as the water sits on the stencil sur
Electronics Forum | Thu Oct 29 05:24:48 EDT 2009 | sachu_70
Martin, to me your subject line suggests you intend to order and manage spares for an SMT machine at your site. Such activity is purely based on trend analysis and strategic planning. This does not require an ERP software or MOQ consideration with yo
Electronics Forum | Sun Nov 08 10:41:11 EST 2009 | rao
Excellent Web OEE calculator... For Ideal Cycle time we use to take Programming Cycle Time but in this calculator it seems you have taken Equipment Rated CPH. For a Given Board & the placement locations the rated CPH is not at all attainable because
Electronics Forum | Tue Nov 24 09:17:03 EST 2009 | spitkis2
A week or so ago I was reading an industry newsletter where the manager from Juki Europe (i think it was Juki) stated that SMT pick and place / equipment market fell by 80% in 2009. I guess that is compared to 2008. Anyway, that is a huge drop. Bo
Electronics Forum | Thu Jan 07 15:28:52 EST 2010 | cbart
did the boards get built by hand or via smt process (through reflow oven)? Someone asked earlier if some one touched up the adjacent joint. The answer to that question is yes. Look at how the solder tails off the smt pad away from that joint! I suspe
Electronics Forum | Fri Jan 29 10:03:25 EST 2010 | jamyboy
The SMT MFG Process for Flex circuits is relatively the same as traditional SMT process, the key is your PCB supplier. The good flex circuit shops will supply the circuits in a rigid carrier or if Rigid/Flex the supplier will create a support structu
Electronics Forum | Fri Feb 12 05:53:32 EST 2010 | muarty
Hi Flipit, One of our customers has recently changed to this type of finish on their PCB's, due to them wire bonding MMIC devices in their factory after we do the SMT build. We found that we had to change all of our stencils for these products, as t
Electronics Forum | Tue Feb 23 12:56:03 EST 2010 | vleasher
Is there any harm in washing SMT soldered with NoClean paste? The PCA has some large thru-hole connectors that we would prefer to do as water soluble on out selective solder but the SMT consists of LGA's and other low parts that we would not be able
Electronics Forum | Wed Feb 24 10:07:36 EST 2010 | aajmera
I am looking for some suitable SMT production performance metrics for a high mix, low volume setup. Currently we use CPH and Machine Utilization. However, in the process of catering to the HMLV setup, we have more changeovers and so the utilization a
Electronics Forum | Sun Apr 11 23:29:39 EDT 2010 | cadcopac
Hi chas, Should you still be in the market for "thru hole to smt conversion" services we are doing this sort of design all the time even converting a supplied stuffed board into gerber files for manufacturing with a parts list and all assembly files
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