Study on the Influence Factors of Leakage Current of Tantalum Wires for Capacitors

The effects of the tantalum wire purity and leakage current test conditions analysis on the tantalum wire leakage current were studied.Resultsshowed that the appropriate content of doping agent and the suitable ratio could significantly reduce the leakage current of tantalum wire. The anodic oxidation condition of tantalum wire was also an important factor affecting the leakage current. By controlling the purity of tantalum wire and optimizing anodizing conditions, the stable and reliable tantalum wire leakage current could be obtained.