Method for producing an electronic module by means of sequential fixation of the components, and corresponding production line

A process for manufacturing an electronic module comprising a printed-circuit board, at least one first-type component and one second-type component, wherein the process comprises:

• placing solder on the board;
• putting the first-type component in a first position;
• heating the entire board to melt the solder, resulting in soldering of the first-type component;
• putting the second-type component in a second position such that the second-type component has leads bearing on the board via the solder;
• and
• heating the solder locally to melt the solder such that the second-type component is soldered,
• wherein heating the solder locally comprises applying two electrodes on each lead of the second-type component and making an electrical current flow between the electrodes in order to heat each lead of the second-type component, wherein each of the two electrodes directly contacts each lead of the second-type component so as to make the electrical current flow between the two electrodes via the corresponding lead of the second-type component.