Patent ID: 8399778

Claim:
A circuit board structure, comprising: a carrying board having a first and an opposite second surface and having at least one through cavity formed therein; at least one semiconductor chip disposed in the through cavity of the carrying board, wherein the semiconductor chip is embedded in the carrying board and has an active surface and an opposite inactive surface, and wherein the active surface has a plurality of electrode pads thereon, and the inactive surface is flush with the second surface of the carrying board; an adhesive material filling a gap between the through cavity of the carrying board and the semiconductor chip to fix in position the semiconductor chip in the through cavity, wherein the adhesive material is different from a material of the carrying board; and a reinforcing layer disposed on the second surface of the carrying board and the inactive surface of the semiconductor chip, wherein the reinforcing layer is made of a thermoplastic resin, and a material of the thermoplastic resin is different from the adhesive material, and wherein the reinforcing layer has an opening to expose the inactive surface of the semiconductor chip, and one end of the opening is completely covered by the inactive surface.