Patent ID: 8871144
Filing Date: 2014-10-28
Classification: C22C,C23C

Abstract:
1. A high purity nickel-vanadium alloy sputtering target for depositing thin films forming microcircuits of semiconductor devices, comprising: a sputtering target body consisting of a non-magnetic Ni—V alloy having 7.2 wt % V that provides stable etching characteristics and that suppresses alpha emissions, said sputtering target body not including Ni said Ni—V alloy having a purity, excluding gas components, of at least 99.995 wt %, a variation of V content within 0.4%, an impurity content of 10 ppm or less of each of Cr, Al and Mg, and an impurity content of 1 ppb or less of each of U and Th.