Thin-film bridge electropyrotechnic initiator with a very low operating energy

摘要

The present invention relates to the field of very low-energy electropyrotechnic initiators. ;The initiator (1) according to the invention comprises, in particular: ;-an electrically and thermally insulating support (26) on which is deposited a thin-film electrical circuit comprising a resistive heating element (17) whose thickness is less than 110⁶ m; ;-an ignition composition (23) consisting of a primary explosive, the particle size of which is less than 3010⁶ m. ;The initiators according to the invention are very suitable for initiating devices for protecting the occupants of a motor vehicle.