Patent ID: 7750288

Claim:
A method of making an optoelectronic module, which includes a first light source circuit and a second photoreceptor circuit able to pick up the light from the first light source circuit directly or by reflection onto an external surface, wherein the method includes the steps of: making a first moulding with an encapsulation material on a lead frame on which there are placed, prior to or after the first moulding and over at least one part of one face of the lead frame that is not covered by the first moulding, the first light source circuit on one portion of a first conductive path of the lead frame and the second photoreceptor circuit on one portion of a second conductive path of the lead frame, the first and second conductive connecting paths, and other conductive connecting paths of the lead frame being connected outside the first moulding to at least one connecting bar, a through opening being made in the first moulding between the connecting bar and the location of the first light source circuit in order to give access to the first conductive path and to a third conductive connecting path for the first light source circuit, electrically connecting contact pads of the first and second circuits to corresponding uncovered pads of some conductive paths of the lead frame, the first light source circuit being connected via the first and third conductive paths to contact pads of the second photoreceptor circuit, and cutting the first and third conductive connecting paths through the through opening of the first moulding in order to electrically insulate the first light source circuit from the parts of the lead frame accessible outside the first moulding, said first light source circuit being connected to the exterior only via the second photoreceptor circuit, in order to protect the light source circuit from electrostatic discharge.