Patent ID: 8383955
Filing Date: 2013-02-26
Classification: H05K

Abstract:
1. A printed circuit board comprising first to fourth layers, wherein a power supply is arranged on the first layer, an electronic component is arranged on the fourth layer, a first vertical interconnection access (via) and a second via extend through the first to fourth layers, and are electrically connected to the electronic component, the power supply is electrically connected to the first and second vias through a first trace arranged on the first layer, a third via extends through the first to fourth layers, and is insulated from the second and third layers, a fourth via extends through the first layer and the second layer, a fifth via extends through the second to fourth layers, and is insulated from the third layer, a sixth via and a seventh via extend through the third layer and the fourth layer, a second trace arranged on the second layer is electrically connected to the fourth via and the fifth via, a third trace arranged on the fourth layer is electrically connected to the fifth via and the sixth via, a fourth trace arranged on the third layer is electrically connected to the first via, the second via, and the seventh via, a fifth trace arranged on the third layer is electrically connected to the sixth via and the fourth trace, a sixth trace arranged on the fourth layer is electrically connected to the third via and the seventh via.