New posts in Layout

For a 4 layers PCB (with ground plane), covering with ground polygon on Layer 1&4 necessary?

Is there a preferred placement of termination resistor for a differential clock line?

How to easily find or create parts for Eagle schematic/board layout

EAGLE Matched Length Pairs / Groups

Blind/buried vs. through hole vias?

Standard PCB Layout Book

What's the schematic to share one crystal with two micros?

Decoupling caps, PCB layout

Can I run traces through "No Connection" pins?

Ethernet Layout Guidelines