> Electronic devices are more reliable with tin-lead solder rather than Aluminum based solders. What are you talking about? None of the common lead-free solder

> Electronic devices are more reliable with tin-lead solder rather than Aluminum based solders. What are you talking about? None of the common lead-free solders contain any Aluminium. Furthermore the primary concern in regards to lead is during wave soldering during manufacturing (where you do get lead vapor; hand soldering and tinning is not really a problem) and during recycling later on.