Copper pouring,which is a PCB Design Considerations
2016/8/9 13:45:37
There is a two layer board with no ground or VCC plains as
I can't go through the grief process.
My question is should I use a copper pour? Currently I have
three possibilities which I am contemplating.
Implement a copper pour connected to nothing
Do not use a copper pour
Implement a copper pour connected to ground
juan.jfl
2016/12/26 4:50:02
No pour is better than a floating pour for signal integrity reasons. When you have a floating pour you are increasing the coupling capacitance between signals so you are increasing the chance of cross talk. In general the pour that is grounded will perform the best, but you should be aware of image current flow.
miika.kirves
2016/12/5 6:49:35
If you're etching it yourself, you should add copper pour connected to nothing. If you're having it etched by a PCB fab, then leave the board without a pour.