Patent ID: 6522061
Filing Date: 2003-02-18
Classification: H01J

Abstract:
A field emission device comprising:a plurality of field emission cathodes for generating a plurality of streams of electrons; a gate structure positioned relative to each of the field emission cathodes for modulating the stream of electrons generated by each of the field emission cathodes; a microchannel gain element having: (i) a first dynode side adjacent the gate and an opposing, second dynode side, wherein each of the first and second dynode sides includes a conductive material thereon having a voltage difference therebetween, and (ii) a plurality of microchannels each having a secondary electron-emissive layer therein and each located adjacent each of the plurality of field emission cathodes for providing a gain to each of the streams of electrons; and an anode positioned adjacent the second dynode side, the anode absorbing electrons from each of the plurality of streams of electrons.