Resistive element for a pyrotechnic initiator
The resistive element (4) comprises a substrate (14) which has a resistive layer (16) fixed to it, partially covered by a conducting layer (20) to provide an electrical contact between two terminals. The substrate is made from a material with a thermal and electrical conductivity and surface state c...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | The resistive element (4) comprises a substrate (14) which has a resistive layer (16) fixed to it, partially covered by a conducting layer (20) to provide an electrical contact between two terminals. The substrate is made from a material with a thermal and electrical conductivity and surface state comparable with that of glass. Preferred Features: The resistive layer, which can be of silicon, is deposited on the substrate (14) by photolithography in a vacuum. The resistive element is connected to the current feed terminals by a solder or via a printed circuit.
L'invention concerne un élément résistif (4) pour initiateur électro-pyrotechnique d'allumage ou de détonation, comportant un substrat (14) sur lequel est fixée une couche résistive (16) recouverte partiellement par une couche conductrice (20) assurant le contact électrique avec deux bornes d'amenée de courant électrique (23). Selon l'invention, le substrat est réalisé dans un matériau ayant une conductivité thermique et électrique et un état de surface, comparables à ceux du verre. |
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