Photoetched-filament pyrotechnic initiator protected against electrostatic discharges
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United States of America Patent
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Jun 25, 2002
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N/A
app pub date -
Oct 25, 2000
filing date -
Nov 5, 1999
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Abstract
The present invention relates to the field of electropyrotechnic initiators comprising a thick-film multifoil circuit. The electrical circuit is photoetched on an insulating support (16). It consists of a resistive first foil having a central part (17) of constant width. This first foil is covered, except on the central part (17), by two conducting areas (28, 29) made of copper. The circuit (18) has an outline consisting of curved lines whose radius is greater than 7.times.10.sup.-4 m and whose shortest distance from the edge of the support (16) is at least 35.times.10.sup.-5 m. Such an initiator has an enhanced electrostatic discharge resistance.
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