Hello Pete ,
We always keep ground template or any other copper minimum 15 mils away from the PCB board edge .
Also when the board is complex which has routing along the edges , we keep ground for shielding or for impedance matching till the edge of PCB .
But the question here is when the routing is not along the PCB board edge and is quite inside the PCB board edge , it is OK to extend ground 15 mils away from the PCB board edge ?
What are the positive and negative effects from compliance point of view ?
Best Regards ,
Parth Sutariya
Hardware CAD Engineer
MATRIX COMSEC
Vadodara , Gujarat
INDIA