Patent ID: 6710260
Filing Date: 2004-03-23
Classification: H05K

Abstract:
A printed circuit board comprising:a circuit pattern formed on a surface of a base substrate, the surface at least comprising an insulative material; an insulative layer formed over the surface of said base substrate and including said circuit pattern, the insulative layer comprising a mixed insulative material of more than two kinds of organic resins having different etching rates during a dry etching process; a connection hole perforating said insulative layer; a conductive film forming an electroplating foundation, electroplating formed on the surface of said insulative layer by a vacuum film forming process after roughing the surface of said insulative layer by removing a part of the surface of said insulative layer with a dry etching process; and a conductive layer formed over said conductive film by an electroplating process; wherein said conductive layer is connected with said circuit pattern electrically.