Patent ID: 7910053

Claim:
A semiconductor device comprising: a semiconductor layer; an aluminum alloy film electrically connected to the semiconductor layer; a transparent electrode layer directly contacting the aluminum alloy film at least over an insulting substrate; and an interface region between the aluminum alloy film and the transparent electrode layer, wherein the aluminum alloy film comprises: one or more group 8b metals selected from the group consisting of iron, cobalt and nickel, wherein the one or more group 8b metals are present in a total amount of 0.5-10mole %; nitrogen or a mixture of nitrogen and one or more elements selected from the group consisting of carbon, silicon, and a combination thereof, wherein said nitrogen or said mixture is present in an amount of 5-15 mole %; and a remaining amount predominantly comprising aluminum, and wherein the interface region comprises: one or more conductive metal oxides, which are included in the transparent electrode layer; and one or more non-oxidized metal elements, which are included in the aluminum alloy film or the transparent electrode layer.