Patent ID: 6626720
Filing Date: 2003-09-30
Classification: B82Y,H01J

Abstract:
A method of fabricating a vacuum gap dielectric field emission triode comprising the steps of:providing a supporting substrate; depositing a layer of conductive material on the supporting substrate; positioning an emitter on the layer of conductive material; forming a sacrificial layer of material surrounding the emitter, the sacrificial layer having a depth and width that defines a gate separation from the emitter; forming a gate seed layer on the sacrificial layer; forming a mask on the gate seed layer, the mask defining a gate opening and gate edges; depositing a gate metal layer on the gate seed layer using the mask, the gate metal layer and the seed layer combining to form a gate; removing the mask; etching an opening through the gate seed layer using the gate metal layer as a mask; removing the sacrificial layer surrounding the emitter; and positioning an anode in spaced relationship to the gate metal layer.