Patent ID: 8062933

Claim:
A method for fabricating a heat dissipating package structure, comprising the steps of: mounting a semiconductor chip on at least one chip carrier and electrically connecting an active surface of the semiconductor chip to the chip carrier; attaching a heat spreader having a hollow portion to an interface layer, wherein the hollow portion corresponds in position to the chip and is larger in size than the chip; mounting the heat spreader to a non-active surface of the chip via the interface layer, wherein the chip is received in the hollow portion of the heat spreader, and the non-active surface of the chip is flush with a top surface of the heat spreader; performing a molding process to form an encapsulant for encapsulating the chip on the chip carrier and the heat spreader with the interface layer; performing a singulation process to remove peripheral non-electrical functional portions of a packaging unit obtained after the molding process, such that sides of the heat spreader are exposed; and removing the interface layer and a part of the encapsulant formed on the interface layer, such that the heat spreader is exposed and the non-active surface of the chip is completely exposed to the hollow portion of the heat spreader so that the non-active surface of the chip comes into contact with atmosphere.