Patent ID: 7884286

Claim:
A printed circuit board comprising: a core substrate; an electronic device provided in the core substrate and having an electrode pad formed thereon; a passivation layer formed on the electronic device and on a first portion of a surface of said electrode pad; an intermediate layer formed directly on the electrode pad and on the passivation layer, the intermediate layer comprising: a first metal layer formed directly on a second portion of the surface of said electrode pad where said passivation layer is not formed, a second metal layer formed directly on the first metal layer, and a third metal layer formed directly on the second metal layer, a first interlayer insulating layer formed over the core substrate and the electronic device and having a first via hole opening therein; a first via hole structure formed in the first via hole opening of the first interlayer insulating layer and electrically connected to the intermediate layer; a second interlayer insulating layer formed over the first interlayer insulating layer and the first via hole structure and having a second via hole opening therein; and a second via hole structure formed in the second via hole opening of the second interlayer insulating layer and electrically connected to the first via hole structure.