Patent ID: 7706148

Claim:
A stack structure of circuit boards embedded with semiconductor chips, comprising: at least two circuit boards each having first circuit layers formed on surfaces thereof and at least one opening with a semiconductor chip embedded therein, the semiconductor chip having a plurality of electrode pads, the first circuit layers having a plurality of first conductive structures and a plurality of first electrically conductive pads, the first conductive structures being electrically conductive to the electrode pads of the semiconductor chip; at least one adhesive layer formed between the at least two circuit boards and disposed with a conductive material corresponding in position to the first electrically conductive pads so as to form a conductive path by the conductive material between the first electrically conductive pads of the circuit boards, thereby establishing electrical connection between the circuit boards; circuit build-up structures formed on surfaces of the circuit boards where the adhesive layer is not formed, wherein a plurality of second conductive structures electrically conductive to the first circuit layers are formed in the circuit build-up structures, and a plurality of second electrically conductive pads are formed on surfaces of the circuit build-up structures; and insulating protection layers formed on the circuit build-up structures, wherein a plurality of openings are formed in the insulating protection layers so as to expose the second electrically conductive pads of the circuit build-up structures.