摘要 |
A printed circuit board (500a-d) is disclosed. The printed circuit board comprises a substrate (200) having a top surface (202) and a bottom surface (203). A ground plane (228) is on the bottom surface. A signal trace (212c) is on the top surface along a first direction. At least two isolated power planes (208,210) are on the top surface adjacent to opposite sides of the signal trace, respectively. A conductive connection (330) along a second direction couples to the two power planes, across the signal trace without electrically connecting to the signal trace, wherein the signal trace doesn't directly pass over any split of the ground plane. |