Abstract: A field emission device with an emitter on a first layer of material and an anode on a second layer of material, separated by a predetermined distance, with a sealed region therebetween. Changes in pressure external to the sealed region producing movement and consequent changes in the predetermined distance between the first and second layers, which change in distance produces a change in current between the emitter and anode. The change in current representing the change in differential pressure.

Abstract: A display addressing method applied in conjunction with an array of cold cathode field emission micro-emitters employs a row-by-row addressing technique in concert with controlled constant current sources connected simultaneously to each column of the array of emitters to provide a novel addressing scheme which yields an improvement in cathodoluminescent display brightness on the order of a full order of magnitude over that of the prior art.

Abstract: Depositing a diamond film on an electron emitting tip including disposing hydrocarbon and etchant reactant gasses together with the tip in a reaction vessel and providing an external voltage source such that electrons, emitted from the electron emitter, disassociate hydrocarbon constituents of the reactant gas. The constituents accelerate toward and are deposited onto the tip and are selectively etched by the etchant constituents such that only the diamond form of the deposited carbon remains.

Abstract: An electron device including a diamond material electron emitter and an anode, both disposed on a supporting substrate, so as to define an interelectrode region therebetween. Electron transport across the interelectrode region is initiated at an emitting surface of the diamond material electron emitter. An alternative embodiment employs a gate electrode disposed substantially symmetrically and axially displaced about the electron emitter and substantially in the interelectrode region to provide a modulation capability.

Abstract: Electron devices employing electron sources including a material having a surface exhibiting a very low/negative electron affinity such as, for example, the 111 crystallographic plane of type II-B diamond. Electron sources with geometric discontinuities exhibiting radii of curvature of greater than approximately 1000.ANG. are provided which substantially improve electron emission levels and relax tip/edge feature requirements. Electron devices employing such electron sources are described including image generation electron devices, light source electron devices, and information signal amplifier electron devices.

Abstract: A field emission device providing electric-field induced electron emission includes an annular edge emitter for emission of electrons. Emitted electrons are collected, at least in part, by an anode centrally disposed with respect to the annular edge emitter.

Abstract: Cathodoluminescent display apparatus employing an electron source including a plurality of diamond crystallites. Image display apparatus employing an array of picture elements, each picture element having associated therewith an electron source including electron emitting diamond crystallites, is realized as a preferred embodiment.

Abstract: An electronic device including a plurality of field emission devices exhibiting dis-similar electron emission characteristics wherein an aperture radius associated with each of the plurality of field emission devices determines the electron emission characteristic.

Abstract: A field emission electron emitter including a coating of diamond material disposed on a surface of a selectively formed conductive/semiconductive electrode wherein carbon ions are implanted at a surface of the electrode to function as nucleation sites for the diamond formation. A second field emission electron emitter is constructed by implanting carbon ions at a surface of a selectively shaped substrate to function as nucleation sites for the diamond formation. A conductive layer is deposited over the diamond and the substrate is removed to leave an electron emitter with a diamond coating.

Abstract: An electron device (100, 110, 200, 300, 400, 500) comprised of a semiconductor transistor such as a bipolar or field effect transistor, a diamond material layer (107, 206, 305), and a distally disposed anode is provided.

Abstract: A depletion mode electron emission apparatus with an electron source including a plurality of preferentially oriented diamond crystallites. Applications employing pluralities of electron sources including preferentially oriented diamond crystallites include image display devices.

Abstract: A method of forming a field emission device including the steps of selective deposition of a column/ridge within the confines of a conformally deposited insulator layer and subsequent directional deposition to form a cone/wedge, having a geometric discontinuity of small radius of curvature, on the column/ridge is provided.

Abstract: An enclosure providing an evacuated region about an array of microelectronic vacuum devices including a substrate, a first encapsulation member defining a cavity, a second encapsulation member defining a cavity and mating with the first encapsulation member so as to define an encapsulated region, a ledge formed in the first encapsulation member for supporting the substrate and defining a communicating passage between the cavities and a sealing agent disposed between the mating surfaces of the encapsulation members to effect a vacuum seal such that when the encapsulated region is evacuated it will be at the same vacuum levels throughout to eliminate differential pressure induced deformation of the substrate. The evacuated substrate enclosure further provides for assembly without an evacuated environment.

Abstract: An electronic device that provides a multiplicity of electronic circuit functions within a single device package by utilizing a plurality of field emission devices wherein at least some of the field emission devices are employed to perform more than a single circuit function.

Abstract: An integrally controlled field emission display device (FED display) is set forth wherein at least a first controller, realized generally as a transistor device, is disposed in/on at least a layer of the FED display and is operably connected to at least one element of the field emission devices of the FED display. A plurality of integrally formed controllers may be selectively interconnected to provide selective control of groups of FEDs of the FED display in a manner that provides for integrated active addressing of the FED display.

Abstract: An image projection system utilizing a cold cathode field emission device to provide the image source is provided. By using a cold cathode field emission device as an image source, an improved image may be achieved as compared to that of a conventional electron-gun CRT image source. First, the resulting image provides improved resolution, due to the fact that smaller pixel cells may be achieved with the cold cathode device. Second, the resulting image is considerably brighter, due to the fact that much higher current densities are achievable with a cold cathode image unit, as compared to the older electron-gun CRT unit.

Abstract: A FED with integrally formed deflection electrode coupled to the electron emitter such that any variation of electron emitter operating voltage is coincidentally impressed on the deflection electrode so as to effectively minimize variations in the emitted electron beam cross-section. In image display devices including FEDs with voltage variations induced at the electron emitter to provide image information, integrally formed deflection electrodes are connected to follow the electron emitter variations so that pixel cross-sections remain substantially invariant under device operation.

Abstract: An electron device employing an electron source including a polycrystalline diamond film having a surface with a plurality of crystallographic planes some of which exhibit a very low/negative electron affinity such as, for example, the 111 crystallographic plane of type II-B diamond. Electron devices employing such electron sources are described including image generation electron devices, light source electron devices, and information signal amplifier electron devices.

Abstract: A field emission device is set forth for providing selected bi-directional transport of charge carriers.

Abstract: A field emission device is set forth for providing a current-regulating and potential equilibrium function.