... sputtering argetPurity: 99.9 - 99.999% Element: Copper and Copper alloyTarget Shape: plate, wafer, rectangular, square, circle, ... tube, step wafer, step rectangle, and customer tailored. Copper Sputtering Targets,Copper target Material Purities ApplicationCu ... CuNi Copper Nickel 3N5 Electronics & Semiconductor CIG Copper Indium Gallium 4N Photovoltaics other Cu Copper / Copper alloys * ...