Patent ID: 7506435

Claim:
A manufacturing method of a multi-layer circuit board with an embedded passive component, comprising: providing a single layer plate having a dielectric layer and a first conductive foil, wherein the dielectric layer has a first surface and a second surface, the first conductive foil is disposed on the first surface for forming surface circuits; heating the single layer plate to melt the dielectric layer; pressing a passive component into the melting dielectric layer from the second surface of the dielectric layer so that the passive component is embedded into the melting dielectric layer and a top of the passive component is coplanar with the second surface; stacking the single layer plate on a core substrate to press the surface circuits into the melting dielectric layer from the first surface of the dielectric layer so that the first surface contacts the core substrate; stacking a second conductive foil on the single layer plate; and forming an electrical pattern on the second conductive foil.