Patent ID: 6043592
Filing Date: 2000-03-28
Classification: H01J

Abstract:
An electron source comprising:(a) a first series of parallel electrodes forming cathode conductors which are placed on an electrically insulating support, said electrically insulating support also carrying a plurality of electron emitting microtips;(b) a second series of parallel electrodes serving as grids, said grids being electrically insulated and spaced from the cathode conductors and forming an angle with the cathode conductors to define intersection areas, each of the electrodes of at least one of said series of parallel electrodes being in contact with a resistive layer and having a lattice structure, including tracks which intersect to define meshes, with a group of said plurality of electron emitting microtips facing each mesh; and(c) electrically conductive elements, each of said electrically conductive elements facing the interior of a corresponding mesh and being electrically insulated from said tracks and in contact with said resistive layer.