In PCB Routing, There Are Actually "8 Golden Rules" – If Design Engineers Ignore Them, the Circuit Board May Have Unstable Performance or Even Be Directly Scrapped!
 
1. Keep traces short and straight to reduce interference.
2. Avoid right-angle traces; use 45° transitions instead.
3. Enlarge power and ground traces to reduce voltage drop.
4. Route analog and digital signals separately to minimize crosstalk.
5. Keep high-frequency signals as short as possible and close to the ground plane.
6. Ensure differential signals are of equal length to maintain balance.
7. Prioritize the layout of clock lines and keep them as far away from sensitive components as possible.
8. Control the number of vias – each additional via reduces signal integrity to some extent.