The combined effect of the thermally conductive resin and the SbSn solder joints within the arcTEC™ structure has a dramatic effect on the reliability and life span of the Peltier modules. The data shows the stark contrast between Peltier modules built with and without the arcTEC™ structure. After as few as 3000 thermal cycles, the conventional Peltier modules already show a dramatic change in resistance. In contrast, the modules built using the arcTEC™ structure show negligible change in resistance all the way out to 30,000+ thermal cycles.