Method for fabricating a one-time electrically activated switch
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United States of America Patent
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Aug 21, 1984
Issued Date -
N/A
app pub date -
Jan 24, 1983
filing date -
Dec 29, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A one-time electrically-activated switch is composed of a cured polymeric binder which contains a powdered conductive material in an amount sufficient to establish particle-to-particle contact throughout the binder and in which the material powder particles have a non-conductive oxide surface sufficient to resist the flow of electricity below a given threshold. When a sufficiently high voltage is applied to the switch, the break-down voltage of the oxide layer is exceeded and avalanche current is permitted to flow. As a result, the oxide layer on the conductive particles breaks down along the break-down path and forms an irreversible low-impedance connection.
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