Electronics Forum | Mon Apr 09 11:39:32 EDT 2018 | emeto
The easiest way to do without special tools is to use level. Check machine co-planarity on the conveyor rails in both directions(you can do that with rails down or rails up or both). Then check co-planarity on the stencil. If the level shows the sam
Electronics Forum | Tue Apr 10 16:27:20 EDT 2018 | emeto
Of course, the more accurate the better. However, it might be a challenge to calibrate with really precise one - still better to take your time and do it right. Good luck!
Electronics Forum | Wed Aug 11 18:35:17 EDT 2010 | julie1
Anyone work with or have knowledge about metal core/clad boards? The board I'm working with is approximately 2" X 3/4" aluminum core pcb, in a 56 up array. There are 3 LED placements per board. I'm having trouble getting a consistent screen print.
Electronics Forum | Thu Aug 12 11:00:42 EDT 2010 | hegemon
Without seeing a picture, my first instinct would be first and foremost some fixturing that provides full support for your print process. After that, since you are citing bow and twist, consider that the fixturing might as well travel through the ov
Electronics Forum | Tue Nov 04 10:02:21 EST 2008 | m79d
jerry this is what i wanted to hear 'real' measurements. I did not want to make the tooling strip too wide as that would add to the cost of the bare board. thank mickd
Electronics Forum | Fri Oct 31 18:08:34 EDT 2008 | m79d
thank you both for the input ok so i understand the hole is on a 5mmx5mm center the pin seems to be 3mm. About 3mm of the board goes under the clamp rail so the tooling strip must be wider than 5mm as the fiducial also needs to be on it. Mark_m yo
Electronics Forum | Wed Apr 23 19:00:39 EDT 2008 | stevek
It depends on the laminate but a PWB is like any other MSL component. Some fab shops are only waranting standard FR4 laminates for 45-60 days when processed at lead free temperatures. The best thing I can say is to try some weight gain/loss experim
Electronics Forum | Tue Jun 11 13:44:22 EDT 2013 | 7pcbassembly
Can you provide sample images to understand it in detail? It will give better idea about your explanation. http://www.7pcb.com
Electronics Forum | Sun Aug 25 20:18:32 EDT 2013 | RHL
Contact Akrometrix.com
Electronics Forum | Tue May 21 15:37:36 EDT 2013 | armelinda
I am looking for a service providing non contact PCB flatness measurement for open board SiP assembly. It was returned for failure analysis with complaint that assembly does not solder properly onto customer system board. Since there are remnants o
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