Monolithic RF/EMI desensitized electroexplosive device

Details Monolithic RF/EMI desensitized electroexplosive device Monolithic RF/EMI desensitized electroexplosive device

1988-12-05

1990-01-16

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Accidental fuse ignition prevention means

1022025, F42C 1912

Patent

active

048935638

ABSTRACT:
A device to protect electromagnetic devices and the method to manufacture e device is disclosed. The novel structure is inherently immune to sinusoidal radio frequency (RF) radiation, and also offers protection against stray signals induced by RF arcing. A main feature is the monolithic construction which reduces dramatically the coupling area for direct RF radiation. An oxide layer is thermally grown on a silicate substrate to form a dielectric, then a resistive layer of nichrome is sputtered to form a heating element. This process places the resistive bridgewire in direct contact with distributed capacitance.

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patent: 4378738 (1983-04-01), Proctor et al.
patent: 4708060 (1987-11-01), Bickes, Jr. et al.
patent: 4729315 (1988-03-01), Proffit et al.

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