"Soldering surface-mount components, also known as SMT or SMD, is completely different than soldering through-hole components. They are not only smaller but need a completely different technique of soldering. The old adage of heating metal first, not the solder, does not work with SMD components. Different SMD components also require different techneques."@en . "Soldering surface-mount components, also known as SMT or SMD, is completely different than soldering through-hole components. They are not only smaller but need a completely different technique of soldering. The old adage of heating metal first, not the solder, does not work with SMD components. Different SMD components also require different techneques."@en . . . "How to solder surface-mount devices"@en . .