Patent ID: 8546183

Claim:
A fabrication method of a heat dissipating semiconductor package, comprising the steps of: mounting and electrically connecting at least one semiconductor chip to a chip carrier; mounting a heat sink on the semiconductor chip, wherein the heat sink includes an insulating core layer, a thin metallic layer formed on each of an upper surface and a lower surface of the insulating core layer, and at least one thermal via hole formed in the insulating core layer, and the heat sink is further formed with an opening at a position corresponding to the semiconductor chip, such that a part of the thin metallic layer on the upper surface of the insulating core layer of the heat sink is exposed via the opening of the heat sink, and the semiconductor chip is received in the opening of the heat sink and in contact with the thin metallic layer on the upper surface of the insulating core layer of the heat sink; performing a molding process to form an encapsulant for completely encapsulating the semiconductor chip on the chip carrier and the heat sink so as to form a package unit; and performing a singulation process to peripherally cut the package unit, and removing a part of the encapsulant above the thin metallic layer on the upper surface of the insulating core layer of the heat sink such that the thin metallic layer on the upper surface of the insulating core layer of the heat sink is exposed, wherein an interface layer is formed on the thin metallic layer on the upper surface of the insulating core layer of the heat sink, so as to facilitate removal of the part of the encapsulant above the thin metallic layer on the upper surface of the insulating core layer of the heat sink, and the interface layer is made of a material selected from the group consisting of nickel, chromium and gold.