摘要:
A carbon film having an area of insulating material surrounded by an area of conducing material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of insulating material to the area of conducting material.
摘要:
A film (carbon and/or diamond) for a field emitter device, which may be utilized within a computer display, is produced by a process utilizing treatment of a substrate and then depositing the film. The treatment step creates nucleation and growth sites on the substrate for the film deposition process and promotes election emission of the deposited film. With this process, a patterned emission can be achieved without post-deposition processing of the film. A field emitter device can be manufactured with such a film.
摘要:
A film (carbon and/or diamond) for a field emitter device, which may be utilized within a computer display, is produced by a process utilizing etching of a substrate and then depositing the film. The etching step creates nucleation sites on the substrate for the film deposition process. With this process patterning of the emitting film is avoided. A field emitter device can be manufactured with such a film.
摘要:
A carbon film having an area of insulating material surrounded by an area of conducing material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of insulating material to the area of conducting material.
摘要:
A carbon film having an area of insulating material surrounded by an area of conducing material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of insulating material to the area of conducting material. An emission site on the carbon film will emit electrons as a function of time, and as a function of distance across an emission site area.
摘要:
A carbon film having an area of insulating material surrounded by an area of conducting material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of insulating material to the area of conducting material.
摘要:
A film (carbon and/or diamond) for a field emitter device, which may be utilized within a computer display, is produced by a process utilizing treatment of a substrate and then depositing the film. The treatment step creates nucleation and growth sites on the substrate for the film deposition process and promotes election emission of the deposited film. With this process, a patterned emission can be achieved without post-deposition processing of the film. A field emitter device can be manufactured with such a film.
摘要:
A carbon film having an area of insulating material surrounded by an area of conducing material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of insulating material to the area of conducting material.
摘要:
An electron source include a first cathode electrode disposed over a substrate and terminated to provide electrons; an emitter layer disposed over the cathode electrode and formed from one or plurality vertically aligned and mono-dispersed nano-structures that are truncated to the same length, embedded in a solid matrix and protruding above the surface for emitting electrons; an insulator disposed over the emitter layer and having one or plurality of apertures, each is self-aligned with and exposes one nano-structure in the emitter layer; and a second gate electrode disposed over the insulator, having one or plurality of apertures self-aligned with the apertures in the insulator and terminated to extract electrons from the exposed nano-structures through the apertures. The gate aperture is substantially less than one micrometer and the gated nano-structures can have a density on the order of 108/cm2. Such an electron source can be modulated with an extra low voltage, emits electrons with high current density and high uniformity, and operates with high energy-efficiency and long lifetime.
摘要:
An x-ray generating device includes at least a nano-structure based field emission electron source having a self-aligned gate aperture incorporated on a substrate. The device further includes at least an anode target. Associated fabrication method is also described.