Patent ID: 8536456
Filing Date: 2013-09-17
Classification: H05K

Abstract:
1. A printed circuit board comprising a first signal layer, a first reference layer, a second signal layer, and a third signal layer stacked one on another in that order, the printed circuit board comprising a first slanted via and a second slanted via, the first signal layer comprising a first transmission wire and a second transmission wire parallel to the first transmission wire, the first and second transmission wires being coupled with each other and cooperatively constituting a first differential pair with an edge-coupled structure, the second signal layer comprising a third transmission wire, the third signal layer comprising a fourth transmission wire parallel to and coupled with the third transmission wire, the third and fourth transmission wires cooperatively constituting a second differential pair with a broadside-coupled structure, the first slanted via obliquely interconnected between the first transmission wire and the third transmission wire, the second slanted via obliquely interconnected between the second transmission wire and the fourth transmission wire.