SN100C is a lead-free silver-free solder alloy developed by Nihon Superior in Japan. SN100C offers user-friendly properties and has been proven in commercial applications since 1999. The inclusion of nickel reduces copper dissolution and produces a bright shiny solder fillet. The addition of germanium reduces dross formation and promotes solder flow. Performance in wave and selective soldering is similar to SAC alloys at considerably lower cost. SN100C is available in bar, solid and cored wire, and solder paste.