Patent ID: 7530043

Claim:
A printed circuit board comprising: a first layer comprising a first power portion and a first ground portion in a same plane and isolated from each other; and a second layer spaced from the first layer, the second layer comprising a second power portion and a second ground portion in a same plane and isolated from each other, wherein the first layer overlaps the second layer with the second ground portion arranged below the first power portion, and the second power portion is arranged below the first ground portion, each of the ground portions and the power portions comprises an edge forming an extending section in the same plane with the corresponding ground or power portion and a cutout, the extending section of the first power portion extends into the cutout of the first ground portion, the extending section of the first ground portion extends into the cutout of the first power portion, the extending section of the second power portion extends into the cutout of the second ground portion, the extending section of the second ground portion extends into the cutout of the second power portion, the extending section of the first power portion overlaps the extending section of the second power portion, the extending section of the first ground portion overlaps the extending section of the second ground portion, the extending section of the first power portion is electrically coupled to the extending section of the second power portion via a first via, the extending section of the first ground portion is electrically coupled to the extending section of the second ground portion via a second via.