Patent ID: 7759170

Claim:
A fabrication method of a semiconductor package, comprising the steps of: mounting a chip on a substrate; mounting a heat dissipating device on the chip, wherein the heat dissipating device comprises an accommodating room, and a first opening and a second opening that communicate with the accommodating room, and wherein an interface layer is formed on a top surface of the heat dissipating device; performing a molding process to form an encapsulant that encapsulates the chip, the heat dissipating device and the interface layer, such that a package unit is formed; performing a cutting process to cut the package unit along cutting lines corresponding to predetermined dimensions of the semiconductor package, so as to remove a non-electrical part of the package unit, which is located beyond the predetermined dimensions of the semiconductor package, and expose the first and second openings from the encapsulant; and removing the encapsulant partially formed on the interface layer.