Patent ID: 7709747
Filing Date: 2010-05-04
Classification: H05K

Abstract:
1. A circuit board for receiving an electrical component, the circuit board comprising: a substrate; a plurality of electrically-conductive pads disposed on a surface of the substrate, the pads arranged in first and second adjacent rows that each include both ground pads and signal pads, the first and second rows of pads being devoid of power pads, the pads defining a pad row pitch, and a plurality of vias extending into the substrate, the vias arranged in first and second rows that each include both ground vias and signal vias, the first and second adjacent rows of vias being devoid of power vias, the vias defining a row pitch, wherein (i) each of the signal vias is electrically connected to a respective one of the pads (ii) the pads are disposed relative to one another in a pad arrangement, (iii) the vias are disposed relative to one another in a via arrangement that differs from the pad arrangement such that the via row pitch is different than the pad row pitch, and (iv) an electrical performance characteristic of the circuit board is improved relative to what the electrical performance characteristic would be if the via arrangement were the same as the pad arrangement.