Coated wire

The invention relates to a wire comprising a wire core having a surface, the wire core having a coating superimposed on the surface thereof, the wire core itself being a silver-based wire core, the coating being a double layer consisting of an inner layer of nickel or palladium having a thickness of 1 nm to 100 nm and an adjacent outer layer of gold having a thickness of 1 nm to 250 nm, characterized in that: the outer layer of gold has a thickness of 1 nm to 250 nm; the wire exhibits a total carbon content of < = 40 wt.-ppm. 本发明涉及一种线材，该线材包括具有表面的线材芯，该线材芯具有叠加在其表面上的涂层，其中该线材芯本身是银基线材芯，其中该涂层是由1nm至100nm厚的镍或钯内层和相邻的1nm至250nm厚的金外层组成的双层，其特征在于，该线材表现出≤40wt.-ppm的总碳含量。