Accession Number : ADD014475

Title :   Monolithic RF/EMI Desensitized Electroexplosive Device.

Descriptive Note : Patent, filed 5 Dec 88, Patented 16 Jan 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Baginski, Thomas A

Report Date : 16 Jan 1990

Pagination or Media Count : 6

Abstract : This patent discloses a device to protect electromagnetic devices and the method to manufacture the 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 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. (JHD)

Descriptors :   *EXPLOSIVES INITIATORS, *ELECTROMAGNETIC SHIELDING, *DESENSITIZING, *PATENTS, *RADIATION RESISTANCE, ELECTROSTATIC CHARGE, CAPACITANCE, CHROMIUM ALLOYS, COUPLING(INTERACTION), ELECTROMAGNETIC RADIATION, HEATING ELEMENTS, LAYERS, MAGNETIC DEVICES, HEATING, NICKEL ALLOYS, OXIDES, SILICATES, SUBSTRATES

Subject Categories : Electromagnetic Shielding

Distribution Statement : APPROVED FOR PUBLIC RELEASE