Patent ID: 6807065
Filing Date: 2004-10-19
Classification: H01P,H05K,Y10T

Abstract:
A multilayer printed circuit board (PCB), comprising:a first signal transmission line; a second signal transmission line opposite to the first transmission line; a first ground layer opposite to the first transmission line; a second ground layer opposite to the first ground layer; a first insulator disposed between the first and second transmission lines; a second insulator disposed between the first and second ground layers; a signal via passing through the first insulator and connected between the first and second transmission lines, the signal via being separated from the first and second ground layers; and a ground via passing through the second insulator and connected between the first and second ground layers, the ground via being separated from the signal via, wherein the first ground layer has an end protruding with respect to the second layer, the end extending nearer to the signal via than an end of the second ground layer opposite to the end.