Patent ID: 7457132

Claim:
A printed circuit board, comprising: a multi-layer board structure comprising a plurality of conductive layers separated by a plurality of non-conductive layers; a plurality of vias electrically coupling a first conductive layer of the plurality of conductive layers and a second conductive layer of the plurality of conductive layers; wherein at least one via of the plurality of vias comprises a via-through section and a via-stub section, the via-through section extending between the first and second conductive layers to provide functional electrical coupling between the first and second conductive layers, the via-stub section extending beyond the second conductive layer; a circuit-stub comprising a set of via-stub sections of the at least one via, the circuit-stub having an un-terminated end; electrically conductive material disposed within said plurality of vias to electrically couple the first conductive layer and the second conductive layer; one or more discrete terminating elements coupled to the un-terminated end of the circuit-stub, wherein termination of the circuit-stub using the one or more discrete terminating elements increases useable bandwidth of the multi-layer board structure.