Eutectic Solders
Eutectic solder increases process predictability
-Melting point of the solder
-Flow (wetting) action behavior
Eutectic solders
–Transitions from solid to liquid at a fixed temperature
–Lower melting point than parent metals
•Example: Sn63Pb37 melts at 183 C
•Example: Sn62Pb36Ag2 melts at 179 C