soldering on an electronic circuit board

green blue light iron electronics machine number line gadget art nature leaf yellow electronic board soldering iron soldered electronics circuit circuit hardware microchip soldering chip technology card processor technician green technical service manufacturing bench technical engineering hot solder pencil-soldering-iron repair electronic repairing fix maintenance semiconductor electronic-components integrated-circuit pcb tool industry digital background cold-solder-joint testing electronic-assembly solder-paste melting resistance texture data-lines