Patent ID: 8357934

Claim:
A semiconductor structure comprising: a semiconductor substrate comprising a group of sub-mounts, wherein each sub-mount comprises: a die attach pad and first and second contact pads inside a recess defined in a front-side of the substrate, and feed-through metallization in via structures extending from a surface within the recess to a back-side surface of the substrate, wherein the feed-through metallization in at least one of the via structures electrically couples the first contact pad on the front-side surface of the substrate to a first pad on the back-side surface of the substrate, and wherein the feed-through metallization in at least one other via structure electrically couples the second contact pad on the front-side surface of the substrate to a second pad on the back-side surface of the substrate; first conductive line on the substrate, wherein the first conductive line forms part of a first electrical path that electrically connects together one of the first contact pads or the second contact pads from each sub-mount in the group of sub-mounts; and second conductive line on the substrate, wherein the second conductive line forms part of a second electrical path that electrically connects together one of the first contact pads or the second contact pads in each sub-mount in the group of sub-mounts, such that the first conductive line and the second conductive line are not directly connected.