Patent ID: 7666768
Filing Date: 2010-02-23
Classification: H01L

Abstract:
1. A semiconductor package comprising: an integrated circuit disposed on a die with an active side and a back side, wherein the die forms a through-hole that extends between the active side and the back side; a though die via formed of a composite material that fills the through-hole, wherein the composite material includes a continuous phase of matrix metal and a dispersed phase of graphitic structures of carbon, and wherein the through die via provides electrical connectivity to the integrated circuit, wherein a first substantial plurality of graphitic structures of carbon that form the dispersed phase align substantially parallel to a centerline of the through-hole, wherein the centerline is perpendicular to the active side and the back side of the die, and wherein a second substantial plurality of graphitic structures of carbon that form the dispersed phase align perpendicularly to the first substantial plurality of graphitic structures of carbon.