COMPOSITIONS, METHODS AND DEVICES FOR HIGH TEMPERATURE LEAD-FREE SOLDER

摘要

A lead-free solder (130) comprises an alloy that includes Ag in an amount of 2 wt % to 18 wt %, Bi in an amount of 98 wt % to 82 wt %, and a third element in an amount of 0.1 wt % to 5.0 wt %. The third element is selected from the group consisting of Au, Cu, Pt, Sb, Zn, In, Sn, Ni and Ge. Contemplated alloys have a solidus of no lower than 230°C and a liquidus of no higher than 400°C.