Integrated detonation circuit arrangement for automobile occupant restraint device especially airbag

摘要

The integrated detonation circuit has a capacitor and a detonation element, with a semiconductor layer (1) incorporating a porous region (B1) acting as a capacitor electrode. This semiconductor layer is overlaid by a capacitor dielectric layer (2), in turn overlaid by a further semiconductor later (3) acting as the second capacitor electrode and provided with a tapered region acting as the detonation element, extending over a non-porous region (B3) of the first semiconductor layer.