Traces are the "printed" wire electrical connections between electronic components on a printed circuit board. For example, a trace might connect pin 7 of an IC to pin 2 of a resistor.
Traces are added after you place component footprints and (highly recommended) set up nets.
Board tracing or routing is the process of placing traces.
When routing your PCB it is recommended to:
- Maintain a safe distance between traces and pads.
- Use the widest practical trace width.
- Minimize trace length.
- Use trace angles of 90 and 45 degrees.