Electronics Forum | Wed Apr 25 07:51:44 EDT 2012 | jdengler
United Chemi-Con makes a 2200uF 35V capacitor EMVA350GDA222MMN0S That's the biggest SMT capacitor I have ever encountered. Jerry
Electronics Forum | Wed Apr 25 10:15:06 EDT 2012 | cyber_wolf
Does anyone have a source for micro cross section supplies? I know about Buehler...was looking for another.
Electronics Forum | Wed Apr 25 12:16:09 EDT 2012 | markhoch
You might want to take a look at Allied High Tech. I was investigating this same thing a few years ago. I never purchased it, so I can't vouch for the product itself, but it's another option. http://www.alliedhightech.com/grinding/xsectiontool/
Electronics Forum | Thu Apr 26 13:37:02 EDT 2012 | bobsavenger
I was just wondering what everyone is using for a standard cleaning cycle on their screen printers? I'm sure there a study that I can do on printing but don't have the time currently. Please let me know what everyone is doing as a standard practice
Electronics Forum | Thu Apr 26 15:58:38 EDT 2012 | jdengler
By default we clean after 10 cycles. Some boards are poorly designed and we end up doing it every 4 cycles
Electronics Forum | Fri May 11 07:53:28 EDT 2012 | stentech
You may also look into a product called Nano Protek. This is an application that helps reduce your cycles and increase productivity. In some cases beter paste deposition has been recorded. Contact your stencil vendor or I can give you information.
Electronics Forum | Sat Apr 28 11:13:38 EDT 2012 | davef
Yiii, you scared me with that wave soldering 25 thou stuff upfront. Look here, it may help http://www.jlab.org/accel/eecad/pdf/022pulliam.pdf
Electronics Forum | Mon Apr 30 10:21:51 EDT 2012 | kahrpr
Good luck with that!!! if someone out there can do that I would love to know how. At .015 the best you can hope for is getting just some bridging maybe.
Electronics Forum | Tue May 01 20:39:41 EDT 2012 | davef
Good luck with that. A couple of things to think about ... * BGA self-align during reflow, just get 'em on the pads * Add a box [or four corner] legend on the bare board to help you position BGA
Electronics Forum | Wed May 02 09:28:20 EDT 2012 | almoore
The surface tension of lead free solder alloys doesn't self align as well as it does with leaded alloys. Taking the guesswork out of alignment would negate the need for expensive split vision systems and make the parts hand reworkable.
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