Patent ID: 8497571

Claim:
A thin flip chip package structure comprises: a substrate having an insulating layer and a trace layer, the insulating layer comprising a top surface, a bottom surface and a plurality of apertures formed at the bottom surface, wherein the bottom surface of the insulating layer comprising a disposing area and a non-disposing area located at outside of the disposing area, each of the apertures is located at the disposing area and comprising a lateral wall and a base surface in connection with the lateral wall, a first thickness is formed between the base surface of each of the apertures and the top surface of the insulating layer, a second thickness is formed between the top surface and the bottom surface of the insulating layer, the second thickness is larger than the first thickness, and the trace layer is formed on the top surface of the insulating layer; a chip disposed on the top surface of the insulating layer, the chip comprising a chip surface and a plurality of bumps electrically connected with the trace layer, wherein the chip surface is corresponded to the disposing area; and a heat dissipation paste at least filling the apertures, and the bottom surface of each of the apertures is in contact with the heat dissipation paste.