Patent ID: 8302299

Claim:
A method of manufacturing a multilayer printed circuit board of a built-in electronic device, comprising the steps of; providing a substrate, and the substrate including a copper clad laminate with a metal board and a copper foil layer coated onto the metal board; laminating a first dielectric layer with a plastic property onto the copper clad laminate, and the first dielectric layer formed by laminating a plurality of layers, and having a cavity penetrated through the first dielectric layer; installing the electronic device into the cavity and laminating a second dielectric layer with a plastic property onto the substrate and the electronic device to produce a base circuit board; and forming an electric circuit on the base circuit board; wherein the second dielectric layer sequentially comprises a second copper clad laminate laminated thereon and having a metal board and a copper foil layer, and the copper foil layer is coated on the metal board, and after the copper clad laminate and the second copper clad laminate are attached closely by a lamination process, the metal boards are removed.