Patent ID: 7129416

Claim:
An electrical mounting board comprising: a substrate having a plurality layers configured such that a substrate core lies between the layers; a first layer having formed thereon a plurality of bi-directionally oriented electrical ground traces arranged in a hybrid configuration so that a first group of electrical ground traces is arranged in a transverse relationship with a second group of electrical ground traces and wherein the first layer includes longitudinal spaces between the ground traces enabling signal traces to be formed thereon; a second layer having formed thereon a plurality of bi-directionally oriented electrical ground traces arranged in a hybrid configuration so that a third group of electrical ground traces is arranged in a transverse relationship with a fourth group of electrical ground traces and wherein the second layer includes longitudinal spaces between the ground traces enabling signal traces to be formed thereon; a set of electrically conductive interconnects that pass through the substrate core to electrically connect electrical ground traces of the first layer with electrical ground traces of the second layer to form a multi-layer ground grid having a plurality of ringlets; and signal traces formed on the longitudinal spaces between the electrical ground traces of at least one of the first and second layers.