Additional ways to minimize impedance
and reduce EMI in your PCB are listed below:
- Placing extra vias near all
ground pins can further minimize impedance in a similar manner as described
previously.
- Avoid open space with no ground
pours around. Avoid big power/signal pours generally.
- Reduce PCB height as much as
possible. You can do this by adjusting the center dielectric so the current
between layers has less distance to travel.