Patent ID: 7098539

Claim:
An electronic device comprising: a first electrode including a metal oxide; and a second electrode including an aluminum alloy film, said second electrode being electrically connected to said first electrode, wherein, in the contact interface between said aluminum alloy film and said first electrode, at least a part of alloy components constituting said aluminum alloy film exist as a precipitate extending through a concentrated alloy material of said aluminum alloy film, the concentrated alloy material existing at the contact interface between the metal oxide and the aluminum alloy film, wherein said aluminum alloy film includes at least one element as a first alloy component X 1 , the element being selected from the group consisting of Ag, Zn, Cu, and Ni, said aluminum alloy film further includes, as a second alloy component X 2 , at least one element selected from the group consisting of Nd and Y, wherein X 1 satisfy the following formula (I): 0.2≦0.5 ×CX 1 +CX 2 ≦4.5 (I) wherein CX 1 represents the content (at %) of Ag, Zn, Cu, and Ni in the aluminum alloy, and CX 2 represents the content (at %) of Nd and Y in the aluminum alloy.