Patent ID: 8647484

Claim:
A sputtering target for a sputtering chamber having a magnetic field generator that generates a rotating magnetic field in the sputtering chamber, the sputtering target comprising: (a) a metal backing plate comprising: (i) a backside surface comprising an inner radius and an outer radius, and a plurality of curved grooves, each curved groove extending from the inner radius of the backing plate to the outer radius of the backing plate; (ii) a thermal conductivity of at least about 200 W/(m·K); and (iii) an electrical resistivity from about 2 to about 5 μohm cm; and (b) a sputtering plate mounted on the backing plate, the sputtering plate comprising: (i) a cylindrical mesa having a plane comprising the sputtering surface; and (ii) an annular inclined rim surrounding the cylindrical mesa.