In electronics, a signal trace or circuit trace on a printed circuit board (PCB) or integrated circuit (IC) is the equivalent of a wire for conducting signals. Each trace consists of a flat, narrow part of the copper foil that remains after etching. Signal traces are usually narrower than power or ground traces because the current carrying requirements are usually much less.
See also
References
Watanabe, Tetsushi; Fujihara, Hiroshi; Wada, Osami; Koga, Ryuji; Kami, Yoshio (2004-08-01). "A Prediction Method of Common-Mode Excitation on a Printed Circuit Board Having a Signal Trace near the Ground Edge". IEICE Transactions on Communications. E87-B (8): 2327–2334. ISSN 0916-8516. https://search.ieice.org/bin/summary.php?id=e87-b_8_2327&category=B&year=2004&lang=E&abst= ↩
Nawazi, Farwah (2022-04-25). "Signal Traces Parameters on Printed Circuit Board (PCB)". Circuits DIY. Retrieved 2022-11-22. https://www.circuits-diy.com/signal-traces-parameters-on-printed-circuit-board-pcb/ ↩