Emitter structure with a protected gate electrode for an electron-emitting device

摘要

A cathode structure of a field emission device includes a gate electrode that is protected by a passivation layer. In one method for manufacturing such a field emission device, an emitter hole is formed through an insulating layer such that the passivation layer overhangs the gate layer, which overhangs an insulating layer. When used in a display system, the gate layer is exposed to an emitter electrode but shielded from an anode.