Influence of Electric Current at Solidification of Solder

This paper deals with the possibility of affecting the creation of solder inner structure under the flow of electric current. The soldering apparatus with a special electrode system has been developed. The reflow of the solder occurred in a quartz glass tube where the brass electrodes were placed at each end of the tube. There have been tested two possibilities, with electric current and without current flow. The used inspection method was the optical inspection of micro-section cut with SEM microscopy.