Micro Secure initiator

The invention relates to a micro one initiator comprising a pyrotechnic initiating means 3 may be initiated by a first ignition means 13 and adapted itself to initiate a load 5. This micro initiator is characterized in that the pyrotechnic means 3 is formed by an energy composition placed on a first layer 2 of a substrate and connectable to the load 5 through a priming channel 6 which is closed by a movable screen 8 which is disposed on a second substrate layer 7 incorporated into the initiator, the screen 8 can be moved from a safe position to an armed position by the action of the gases generated by a first pyrotechnic generator 9 also incorporated into the micro initiator 1 and initiated a second ignition means 14.