Patent ID: 8119462

Claim:
A method for forming a conductive film of which forming a conductive film including copper as a main component and additive metal on a surface of an object to be film formed in vacuum ambience by a sputtering method, the method comprising the step of sputtering a target containing copper as a main component and at least any one type of additive metal selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Ru, Os, Co, Ni, Bi, Ag, Zn, Sn, B, C, Al, Si, La, Ce, Pr, and Nd, while supplying an oxidation gas that has oxygen atoms in its chemical structure, for reaction with the additive metal, into the vacuum ambience, such that a ratio of a partial pressure of the oxidation gas to a total pressure of the vacuum ambience is at least 0.1% and at most 20%, thereby making the conductive film include the additive metal therein.