signal trace

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.{{Cite journal |last=Watanabe |first=Tetsushi |last2=Fujihara |first2=Hiroshi |last3=Wada |first3=Osami |last4=Koga |first4=Ryuji |last5=Kami |first5=Yoshio |date=2004-08-01 |title=A Prediction Method of Common-Mode Excitation on a Printed Circuit Board Having a Signal Trace near the Ground Edge |url=https://search.ieice.org/bin/summary.php?id=e87-b_8_2327&category=B&year=2004&lang=E&abst= |journal=IEICE Transactions on Communications |volume=E87-B |issue=8 |pages=2327–2334 |issn=0916-8516}}{{Cite web |last=Nawazi |first=Farwah |date=2022-04-25 |title=Signal Traces Parameters on Printed Circuit Board (PCB) |url=https://www.circuits-diy.com/signal-traces-parameters-on-printed-circuit-board-pcb/ |access-date=2022-11-22 |website=Circuits DIY |language=en-US}} 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.