Accession Number : AD0164229

Title :   Thin Film Room-Temperature Electron Emitter.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Smith,Sidney T.

Report Date : 05 OCT 1971

Pagination or Media Count : 4

Abstract : The patent describes a vacuum enclosure containing an anode and a cathode, wherein a first embodiment of the cathode comprises a continuous thin film of semiconductive material deposited on an electrically insulating substrate and adapted to have a potential difference placed thereacross. A break in the film exists so as to produce a high impedance to the flow of current. A second embodiment of the cathode comprises a noncontiguous thin film of semiconductive and metallic material deposited at random in small droplets on a substrate and adapted to have a potential difference placed thereacross.

Descriptors :   *Emitters, *Patents, Electron tubes, Thin films, Semiconducting films

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE