A semiconductor package is provided. In one configuration, the semiconductor package includes a substrate having a die attach surface. A conductive trace is disposed on the substrate, wherein the conductive trace is elongated and carries a signal or a ground across at least a portion of the substrate. A die is mounted on the die attach surface of the substrate via a conductive pillar bump, the conductive pillar bump being rounded and elongated such that the conductive pillar bump extends along a length of the conductive trace and contacts the conductive trace at an end or at an intermediate portion thereof. The die further includes a metal pad electrically coupling to the conductive pillar bump, wherein the metal pad has a first edge and a second edge substantially vertical to the first edge, and wherein the first edge is not adjacent to the second edge.