Patent ID: 8963019
Filing Date: 2015-02-24
Classification: H05K

Abstract:
1. A manufacturing method of circuit board, comprising: providing a dielectric substrate; forming a dielectric layer on the dielectric substrate, wherein the dielectric layer contains a plurality of active particles therein; performing a surface treatment on a surface of the dielectric layer so as to activate the active particles at the surface of the dielectric layer; forming a first conductive layer on the activated surface of the dielectric layer; forming a conductive via in the dielectric substrate and the dielectric layer; forming a patterned mask layer on the first conductive layer, wherein the patterned mask layer exposes the conductive via and a part of the first conductive layer; forming a second conductive layer on the first conductive layer and conductive via exposed by the patterned mask layer; and removing the patterned mask layer and the first conductive layer below the patterned mask layer.