One-time electrically-activated switch

Details One-time electrically-activated switch One-time electrically-activated switch

1980-12-29

1983-04-19

Albritton, C. L.

Electrical resistors

With switch

431359, H01C 1300

Patent

active

043807496

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.

REFERENCES:
patent: 3996066 (1976-07-01), Smielek et al.
patent: 4144418 (1979-03-01), Girard et al.

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