Electronics Forum | Wed Aug 11 06:40:51 EDT 2010 | bob
If the fiducials are bad. There are 2 lights on the downward camera. The one that you can see is mainly used for bright and shiny fids....the other light is for dark/dirty fids. Turn this light on and set the other for 1 (not 0 because of a software
Electronics Forum | Wed Sep 01 08:16:55 EDT 2010 | sachu_70
Drill holes or tooling holes have higher tolerances than Fiducial marks during PCB fabrication. I would certainly recommend Fiducial recognition as a more reliable approach for better accuracy. You could re-calibrate the Vision system file used for
Electronics Forum | Tue Aug 17 11:24:04 EDT 2010 | namruht
I have a question that has been discussed many times, but is always good to get some new insight. We have lots of issues with our no clean process. We use a Kester EP256 solder paste. I would just like to get some general tips on how to get rid of mi
Electronics Forum | Tue Aug 17 12:27:48 EDT 2010 | namruht
That reminds me...We already have home plate apertures on our stencil. Try number 2...I tried an overall reduction based on the copper layer of 10% and used oval apertures. I hope that you guys can suggest something that I am over looking. I know tha
Electronics Forum | Thu Aug 19 16:03:04 EDT 2010 | kpm135
Are you reusing your paste or putting down new every time? I've seen solder balls before when operators try to use the paste past the recomended stencil life. I've also seen it happen with a bad batch of solder paste from a vendor.
Electronics Forum | Thu Aug 19 10:28:26 EDT 2010 | tpearson
We want to complete an end of life build on a leaded no-clean circuit board assembly. I was asked how long the assembly can be stored for future use. Assume it is in a temperature controlled warehouse. Boards will be placed into individual ESD bags f
Electronics Forum | Sat Sep 18 03:45:08 EDT 2010 | vinitverma
Before reinstalling, just take a system data backup of the machine. It'll create one floppy which you will use in the form of "System Data Restore" once you have reinstalled the software. By the way, you should have 2 CDs, one titled Application Soft
Electronics Forum | Wed Sep 01 08:54:25 EDT 2010 | fedorend
Hi Namruht, One question, what exactly are you > wanting to achieve using "feeder calibration? In > what way would feeder calibration make these > feeders (between Siemens and Universal) > compatible? Or maybe i misunderstood your point > .....
Electronics Forum | Thu Sep 02 04:59:17 EDT 2010 | sachu_70
Feeder calibration helps to center the window opening used during component pick-up by a machine nozzle. Once this is established, the next step would be to confirm the centering of Machine nozzle to the center of this feeder window during machine op
Electronics Forum | Fri Sep 03 10:52:39 EDT 2010 | arjan
Mark, Can you send some X-ray foto's of your LGA solderjoints, I am curious about the results of a marginal paste volume in combination with the Multicore LF318. Did you follow the recommandation of LT and use also soldermask defined pads on your bo
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