Integrated circuit configuration and ignition unit
First Claim
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1. An integrated circuit configuration, comprising:
- a semiconductor layer functioning as a first capacitor electrode, said semiconductor layer having a porous region formed therein;
a dielectric layer disposed on said semiconductor layer; and
a further semiconductor layer functioning as a second capacitor electrode disposed on said dielectric layer, said first capacitor electrode, said dielectric layer and said second capacitor electrode forming a capacitor in said porous region of said semiconductor layer, said further semiconductor layer having a region tapered in its cross-section serving as an ignition element connected to said capacitor.
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Abstract
An integrated circuit configuration, in particular for igniting a restraint device of a motor vehicle, has a capacitor and an ignition element. In this case, a porous region of a semiconductor layer forms a capacitor electrode, which is isolated from a further semiconductor layer by a dielectric layer. The further semiconductor layer being configured as a further capacitor electrode. The further semiconductor layer has a region that is tapered in its cross-section and serves as an ignition element electrically connected to the capacitor.
21 Citations
12 Claims
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1. An integrated circuit configuration, comprising:
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a semiconductor layer functioning as a first capacitor electrode, said semiconductor layer having a porous region formed therein;
a dielectric layer disposed on said semiconductor layer; and
a further semiconductor layer functioning as a second capacitor electrode disposed on said dielectric layer, said first capacitor electrode, said dielectric layer and said second capacitor electrode forming a capacitor in said porous region of said semiconductor layer, said further semiconductor layer having a region tapered in its cross-section serving as an ignition element connected to said capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In an occupant protection device of a motor vehicle, an ignition unit for igniting the occupant protection device, the ignition unit comprising:
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a semiconductor layer functioning as a first capacitor electrode, said semiconductor layer having a porous region formed therein;
a dielectric layer disposed on said semiconductor layer;
a further semiconductor layer functioning as a second capacitor electrode disposed on said dielectric layer, said first capacitor electrode, said dielectric layer and said second capacitor electrode forming a capacitor in said porous region of said semiconductor layer;
an ignition material; and
said further semiconductor layer having a region tapered in its cross-section and serves as an ignition element connected to said capacitor, said capacitor storing electrical energy for heating said ignition element, said ignition element, in an event of current throughflow, igniting said ignition material thermally coupled to said ignition element. - View Dependent Claims (11, 12)
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Specification