close-up of a soldering iron working on a circuit board with a microchip. the soldering iron glows red hot

close solder iron work circuit board microchip glow red hot construction rework accuracy lead ergonomic tool technician powerful safety surface connector precision repair copper variable electronic insulate resistor engineering automate manufacture thermal workshop bond diode wattage stand connection pin hobbyist technology machine robotic flux rosin assembly device regulator workbench component closeup soldering working glows generative