Electronics Forum | Mon Jul 01 09:33:08 EDT 2019 | dbuschel
if you can't change the PCB materials or design at this point, you might be able to reduce it somewhat through the use of fixtures or edge stiffeners. Unless it is a particularly thick board, I don't think the reflow profile would be the issue. The t
Electronics Forum | Thu Oct 11 17:44:30 EDT 2001 | aaelect
OK, OK. 672 ball BGA. The pcbs are PC Card bus size and are .015 thick. There are 3 on a panel with about 1/2" between and rails. The aluminum plates are about 3" by 7". There are 3 cutouts which allow for the parts from either side to protrude du
Electronics Forum | Mon Oct 08 23:17:48 EDT 2001 | Brad Arnold
We are trying to produce a PC Card bus assembly with a 672 pin BGA on one side. These pcb's are .015 thick. I believe the ball pitch is .5mm. The pcb's are plated with white tin. The pcb's are in a 1 X 3 array. We had 2 plates with appropriate cutout
Electronics Forum | Fri Nov 30 15:27:19 EST 2001 | Rex Gustafson
Where can I find pcb scoring guidelines for boards with different thicknesses, panel arrays, ....?
Electronics Forum | Tue Jun 05 14:04:11 EDT 2007 | hussman
We have the same situation here. But generally it is the customer gives us a 1-up Gerber drawing and we need a multi-up or some form of breakaway to make the product. The way we achieve this is thru a Word document we call PCB Guidelines. We attac
Electronics Forum | Tue Oct 29 08:07:53 EDT 2013 | cyber_wolf
Are there a set of guidelines for optimizing panel design for tabs that will be removed with a board router ? In other words we need to know how to layout the tabs. Thanks
Electronics Forum | Fri Sep 24 09:57:54 EDT 1999 | Boca
| | Is there a standard rule/guide for the orientation of pcb's in a panel for panelised board (specially for routed panel). | | i often get this question from peeps here and i kept telling them that it depends on how it affects the process. | | than
Electronics Forum | Sat Jan 30 16:42:32 EST 2016 | davef
Many board fabs help their customer understand the importance of copper balance. Copper balance * http://www.multi-circuit-boards.eu/en/pcb-design-aid/copper-balance.html * http://electronics.stackexchange.com/questions/85633/what-is-copper-thiev
Electronics Forum | Tue Nov 05 11:52:48 EST 2019 | rgduval
Richard, Are you trying to put different pcb's on the panel, or just step and repeating the same pcb across the panel? Either way, the method is pretty similar. For step and repeat, you need to create a panel/layout, using the panel fiducials. Th
Electronics Forum | Wed Dec 10 10:36:42 EST 2003 | russ
I would contact your PCB supplier, they usually have some type of software for panel optimization. Each shop potentially uses different size panels so it is a good idea to ask them what they are using and go from there. Keep in mind that there are
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