Liquidus and Solidus Temperatures

Melting temperature and melting range are basic consideration criterion when selecting solder alloys or designing a new solder. The liquidus and solidus temperatures of a large number of commercial solder alloys have been collected and compared to the calculated temperatures using the TCS Solder Alloy Solutions Database (TCSLD).

Figure 1: Comparison of experimental and calculated liquidus and solidus temperatures for various solder alloys. Critical temperatures refers to either the liquidus or the solidus temperatures. Good agreement between calculations and experiments is observed.