Patent ID: 8186045

Claim:
A method of manufacturing a multilayer printed circuit board, comprising: providing a substrate; embedding an electronic component having a die pad on a surface of the electronic component into the substrate such that the electronic component has the surface and die pad exposed from a surface of the substrate; forming a metallic layer comprising a plurality of metallic film layers such that the surface of the substrate and the die pad and surface of the electronic component are covered with the metallic layer; providing a resist on the metallic layer such that a portion of the metallic layer on the die pad is exposed from the resist; forming a thickening metallic layer on the portion of the metallic layer exposed from the resist; removing the resist from the substrate and the surface of the electronic component; and etching to remove the metallic layer such that a mediate layer comprising the portion of the metallic layer is formed between the die pad and the thickening metallic layer.