. . . . "The material of the second metal layer comprises metal (such as Ti, Ta, Ag, Au, Pt, Cu, Al, Mo, Nd, W, Cr, Rh, Re, Ru, Co, or other metal), alloy, or combinations thereof, preferably, for example a Mo/AlRu alloy, Mo/AlRu alloy/Mo, or Mo/Al/Mo, but not-limited it." . . . . .