Patent ID: 7064015

Claim:
A manufacturing method of a semiconductor device having: a first member having a first electrode; and a second member having a second electrode formed on the surface of the insulating substrate and connected with said first electrode, in which a manufacturing method of said second member comprises the steps of: forming a through hole on a required position of said insulating substrate; performing processing to reduce a degree of surface activeness of the surface of a region other than the region of said through hole on the surface of said insulating substrate; and forming the second electrode formed of a connection electrode with a required pattern in the region including said through hole on a surface of said insulating substrate, in which said second electrode is connected with said insulating substrate in said through hole region, and formed in the state that it is easily peeled off from the surface of said insulating substrate in the region other than the through hole, wherein, said performing of processing to reduce the degree of surface activeness of the surface other than the region of said through hole on the surface of said insulating substrate further comprises the steps of: making the region on the surface of said insulating substrate become a rough surface to form fine concave portions and convex portions; and coating surface low active agent on the surface of said insulating substrate to leave the agent in said concave portions, and said forming of said second electrode further comprises the steps of: plating a conductive material on the surface of said insulating substrate and the inner surface of the through hole to form a plated film; and forming said plated film in a required pattern to form a through hole electrode and a connection electrode respectively on said through hole inner surface and the surface of said insulating substrate, in which said second electrode is formed in the state that it connects with said through hole electrode in one portion and closely contacts with the insulating substrate at the vertex of the convex portion of said insulating substrate in another portion.