An electrical interconnect for an electronic package. The electrical interconnect includes a first dielectric layer; a second dielectric layer; a signal conductor positioned between the first dielectric layer and the second dielectric layer; and a conductive reference layer mounted on the first dielectric layer, and wherein the conductive reference layer does not cover the signal conductor. The conductive reference layer may be a first conductive reference layer and the electrical interconnect further comprises a second conductive reference layer mounted on the second dielectric layer. The second conductive reference layer does not cover the signal conductor. In addition, the signal conductor may be a first signal conductor and the electrical interconnect may further include a second signal conductor between the first dielectric layer and the second dielectric layer. The first and second signal conductors may form a differential pair of conductors.