Patent ID: 9721915
Date: 2017-08-01
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: a semiconductor substrate having a main surface; a Cu electrode which is selectively formed above said main surface of said semiconductor substrate; an inorganic film continuously formed from an end portion of an upper surface of said Cu electrode through a lateral side surface of said Cu electrode and through said main surface of said semiconductor substrate, said inorganic film being in contact with said end portion of said upper surface of said Cu electrode, with said lateral side surface of said Cu electrode, and with said main surface of said semiconductor substrate; an antioxidant film formed in a region of said upper surface of said Cu electrode except said end portion thereof so as to be in close contact with a lateral side surface of said inorganic film, which is formed on said end portion of said upper surface of said Cu electrode, said antioxidant film being formed on part of an upper surface of said inorganic film so as to be in close contact with said part of said upper surface of said inorganic film, which is formed on said end portion of said upper surface of said Cu electrode; and an organic resin film formed on said inorganic film, in a region without said antioxidant film.