Definition
Reflowing (or reflow soldering) involves heating solder joints to their melting point to re-establish electrical connections that have cracked or degraded. This is done using a hot air rework station or infrared heater with precise temperature control. The technique addresses cold solder joints and stress fractures caused by repeated thermal expansion and contraction during normal miner operation.
Reflowing is less invasive than chip replacement and can fix many intermittent failures. However, it is a temporary fix if the root cause (thermal stress) continues. Proper thermal paste application and temperature management help prevent the need for reflowing.
In Simple Terms
Reheating solder joints to fix broken connections. A common repair for intermittent chip failures.