Patent ID: 8723175

Claim:
A target consisting of a composite oxide which comprises In, Zn, and one or more elements X selected from the group consisting of Zr, Hf, Ge, Si, Ti, Mn, W, Cu, Ni, Co, Fe, Cr, Nb, Al, B, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu in the following atomic ratios (1) to (4): In/(In +Zn)=0.2 to 0.8 (1) In/(In +X)=0.29 to 0.99 (2) Zn/(X+Zn)=0.29 to 0.99 (3) Zn/(In +Zn+X)=0.21 to 0.72 (4).