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Signal trace - Wikipedia, the free encyclopedia (81 words) |
 | On a printed circuit board, a signal trace is the printed circuit equivalent of a wire for carrying electrical signals. |
| Each trace consists of a flat, narrow part of the copper foil that remains after etching. |
| Signal traces are usually narrower than power / ground traces because their current carrying requirements are often much less. |
| United States Patent Application: 0040238213 (3132 words) |
| In particular, the present invention recognizes that the reflections on traces on printed circuit boards are at least partially caused by the non-uniform impedance profile that is presented to the trace as the trace's proximity to ground vias changes as it traverses the printed circuit board. |
| Typically, the trace's proximity to ground vias is different when the trace passes through connector footprints where there are ground vias in close proximity in contrast to when the trace passes between connector footprints where there are few, if any, ground vias in close proximity. |
| Trace 320 is substantially straight along its course from signal via 311-1 to signal via 313-1, and its corners are rounded. |
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