Patent ID: 6602737
Filing Date: 2003-08-05
Classification: H01L

Abstract:
A method for making a semiconductor package, comprising the steps of:providing a heat-dissipating structure comprising a heat sink having a first surface and a second surface, and a plurality of solder columns attached to the second surface of the heat sink; providing a substrate having a first side and a second side; forming a plurality of connecting pads on the first side of the substrate for attaching the solder columns to the substrate; mounting at least one semiconductor chip on the first side of the substrate, and electrically connecting the semiconductor chip to the substrate; attaching the solder columns to the connecting pads on the first side of the substrate for mounting the heat-dissipating structure on the substrate in a manner that the heat sink is positioned above the semiconductor chip; forming an encapsulant on the first side of the substrate to encapsulate the semiconductor chip and the heat-dissipating structure, while allowing the first surface of the heat sink to be exposed to the atmosphere; and mounting a plurality of conductive elements on the second side of the substrate.