These higher silver alloys are true eutectic alloys — completely changing form a solid to a liquid at the melting point of 217°C. In contrast, SAC305 has a range between 217–219°C.

This study focused on optimizing Ga-FIB preparation of APT specimens for low-melting SAC305 solder materials. The SAC305 solder alloy specimen was reflowed at 240 °C, then cooled rapidly to 90 ...