SOLDER COAT CO.,LTD.
Defective rate decrease & High reliability / Lead-free solder alloy LLS 219α
The LLS 219α is an alloy with further improved wettability and heat-cycle resistance properties, and that inherits the superlative performance of the LLS 219.
Effect of adding Ge
Addition of Ge enables superior prevention of oxidization of the main ingredient (Ge), and improves wettability and reduces dross.
Improvement of wettability [Comparison of zero cross time]
Comparison of reducing dross
Effect of adding Ni
Addition of Ni sees a drastic reduction in shrinkage cavities through segmentation effect and an improvement in heat-cycle resistance properties by inhibiting grain coarsening.
Reducing shrinkage cavity
Improvement in heat-cycle resistance ［Comparison of tensile strength / -40⇔125°］
Copper corrosion amount decrease
