Patent ID: 7540976

Claim:
A sputtering target for fluorescent thin-film formation comprising a matrix material and a luminescent center material, wherein said matrix material has a chemical composition represented by the following formula (1), and simultaneously satisfies conditions represented by the following inequalities (2) to (5) M II v A x B y O z S w (1) 0.05 ≦v/x≦ 5 (2) 1 ≦y/x≦ 6 (3) 0.01 ≦z /( z+w )≦0.85 (4) 0.6≦( v+x+ 3 y/ 2)/( z+w )≦1.5 (5) wherein M II represents one or more elements selected from the group consisting of Zn, Cd and Hg, A represents one or more elements selected from the group consisting of Mg, Ca, Sr, Ba and rare earth elements, B represents one or more elements selected from the group consisting of Al and In, and v, x, y, z and w each represent numerical values satisfying the conditions specified in the inequalities (2)to (5).