Class / Patent application number | Description | Number of patent applications / Date published |
438020000 | ELECTRON EMITTER MANUFACTURE | 20 |
20080261337 | LOW VOLTAGE ELECTRON SOURCE WITH SELF ALIGNED GATE APERTURES, FABRICATION METHOD THEREOF, AND LUMINOUS DISPLAY USING THE ELECTRON SOURCE - A method of fabricating an electron source having a self-aligned gate aperture is disclosed. A substrate is deposited on a first conductive layer. Over the first conductive layer an emitter layer is deposited. The emitter layer includes one or a plurality of spaced-apart nano-structures and a solid surface with nano-structures protruding above the surface. An insulator is conformally deposited over the emitter layer surface and forms a post from each protruding nano-structure. A second conductive layer is deposited over the insulator and the second conductive layer and the insulator are removed from the nano-structures such that apertures are formed in the second conductive layer and at least the ends of the nano-structures are exposed at the centers of said apertures. | 10-23-2008 |
20090023232 | ORGANIC ELECTROLUMINESCENCE ELEMENT, PROCESS FOR PREPARATION OF THE SAME, AND ELECTRODE FILM - An organic electroluminescence element has a layered structure on a surface of a transparent substrate. The layered structure comprises an organic material layer including a light-emitting organic material layer, an opaque electrode layer, an insulating layer, a metal layer and a resin film in order. The organic electroluminescence element is improved in durability because moisture is prevented from permeating into a light-emitting element. | 01-22-2009 |
20090098671 | Nanotube assembly including protective layer and method for making the same - Nanotube assemblies and methods for manufacturing the same, including one or more protective layers. A nanotube assembly may include a substrate, a nanotube array, formed on the substrate, and a protective layer, formed on a first area of the substrate where the nanotube array is not, the protective layer reducing the formation of nanocones, and promoting the formation of nanotubes, which make up the nanotube array. | 04-16-2009 |
20090117674 | Method for manufacturing field emission electron source having carbon nanotubes - A method for manufacturing a field emission electron source includes: providing a CNT array; drawing a bundle of CNTs from the CNT array to form a CNT yarn; soaking the CNT yarn into an organic solvent, and shrinking the CNT yarn into a CNT string after the organic solvent volatilizing; applying a voltage between two opposite ends of the CNT string, until the CNT string snapping at a certain point; and attaching the snapped CNT string to a conductive base, and achieving a field emission electron source. The field emission efficiency of the field emission electron source is high. | 05-07-2009 |
20090246895 | APPARATUS AND METHODS FOR COMBINING LIGHT EMITTERS - Provided are methods and apparatus for combining light emitters and devices including the same. Embodiments include methods of selecting combinations of multiple light emitters that are grouped into multiple bins. The multiple bins correspond to multiple emitter group regions in a multiple axis color space and multiple luminosity ranges. Such methods may include prioritizing multiple combinations of light emitters from at least two of the bins, each of the combinations including chromaticity values corresponding to a desired color region and a luminosity value corresponding to a specified luminosity range. | 10-01-2009 |
20090258448 | Method for making thermal electron emitter - A method for making the thermal electron emitter includes following steps. Providing a carbon nanotube film including a plurality of carbon nanotubes. Treating the carbon nanotube film with a solution comprising of a solvent and compound or a precursor of a compound, wherein the compound and the compound that is the basis of the precursor of a compound has a work function that is lower than the carbon nanotubes. Twisting the treated carbon nanotube film to form a carbon nanotube twisted wire. Drying the carbon nanotube twisted wire. Activating the carbon nanotube twisted wire. | 10-15-2009 |
20090263920 | PROTECTION OF CAVITIES OPENING ONTO A FACE OF A MICROSTRUCTURED ELEMENT - The invention relates to a method for protecting the interior of at least one cavity ( | 10-22-2009 |
20090280585 | HIGH-DENSITY FIELD EMISSION ELEMENTS AND A METHOD FOR FORMING SAID EMISSION ELEMENTS - A method for forming high density emission elements and field emission displays formed according to the method. Oxygen and a silicon etchant are introduced into a plasma etching chamber containing a silicon substrate. The oxygen reacts with the silicon surface to form regions of silicon dioxide, while the silicon etchant etches the silicon to form the emission elements. The silicon dioxide regions mask the underlying silicon during the silicon etch process. High density and high aspect ratio emission elements are formed without using photolithographic processes. The emission elements formed according to the present invention provide a more uniform emission of electrons. Further, a display incorporating emission elements formed according to the present invention provides increased brightness. The reliability of the display is increased due to the use of a plurality of emission elements to supply electrons for stimulating the phosphor substrate material to produce the image. | 11-12-2009 |
20090317926 | METHOD FOR MAKING TRANSMISSION ELECTRON MICROSCOPE GRID - A method for making transmission electron microscope gird is provided. An array of carbon nanotubes is provided and drawing a carbon nanotube film from the array of carbon nanotubes. A substrate has a plurality of spaced metal girds attached on the substrate. The metal girds are covered with the carbon nanotube film and treating the carbon nanotube film and the metal girds with organic solvent. A transmission electron microscope (TEM) grid is obtained by removing remaining CNT film. | 12-24-2009 |
20090325329 | METHOD FOR MANUFACTURING ELECTRON EMITTING DEVICE AND MEMORY MEDIUM OR RECORDING MEDIUM THEREFOR - A method and an apparatus for manufacturing a high intensity electron emitting device using a boron lanthanum compound thin film are provided. Sputtered particles of a low work function substance target are accumulated on a second substrate disposed an electron emitting base member. By using a mask for screening the electron emitting base member region opening other regions, the deposition of a low work function substance on the second substrate is etched, and after that, the second substrate and the first substrate disposed with the phosphor are sealed by a sealing agent to fabricate a vacuum chamber. During the fabrication step thereof, the first and second substrates are consistently maintained in a vacuum atmosphere or a reduced pressure. | 12-31-2009 |
20090325330 | METHOD FOR MANUFACTURING ELECTRON EMITTING DEVICE AND MEMORY MEDIUM OR RECORDING MEDIUM THEREFOR - A method and an apparatus for manufacturing a high intensity electron emitting device using a boron lanthanum compound thin film are provided. An electron emitting base member region is opened in a second substrate disposed with an electron emitting base member, and is applied with a mask screening another region, thereby sputter-accumulating the sputtered particles of a low work function substance target. The second substrate sputter-accumulated and a first substrate disposed with phosphor are sealed by a sealing agent to fabricate a vacuum chamber. During the fabrication step, the first and second substrates are consistently maintained in a vacuum atmosphere or a reduced pressure atmosphere. | 12-31-2009 |
20100009474 | METHOD OF GROWING CARBON NANOTUBES AND METHOD OF MANUFACTURING FIELD EMISSION DEVICE USING THE SAME - A method of growing carbon nanotubes and a method of manufacturing a field emission device using the same is provided. The method of growing carbon nanotubes includes steps of preparing a substrate, forming a catalyst metal layer on the substrate to promote growing of carbon nanotubes, forming an inactivation layer on the catalyst metal layer to reduce the activity of the catalyst metal layer, and growing carbon nanotubes on a surface of the catalyst metal layer. Because the inactivation layer partially covers the catalyst metal layer, carbon nanotubes are grown on a portion of the catalyst metal layer that is not covered by the inactivation layer. Thus, density of the carbon nanotubes can be controlled. This method for growing carbon nanotubes can be used to make an emitter of a field emission device. The field emission device having carbon nanotube emitter made of this method has superior electron emission characteristics. | 01-14-2010 |
20100075445 | Silicon Microchannel Plate Devices With Smooth Pores And Precise Dimensions - A method of fabricating a microchannel plate includes forming a plurality of pores in a silicon substrate. The plurality of pores is oxidized, thereby consuming silicon at surfaces of the plurality of pores and forming a silicon dioxide layer over the plurality of pores. At least a portion of the silicon dioxide layer is stripped, which reduces a surface roughness of the plurality of pores. A semiconducting layer can be deposited onto the surface of the silicon dioxide layer. The semiconducting layer is then oxidized, thereby consuming at least some of the polysilicon or amorphous silicon layer and forming an insulating layer. Resistive and secondary electron emissive layers are then deposited on the insulating layer by atomic layer deposition. | 03-25-2010 |
20110104832 | METHOD FOR PRODUCING A FIELD-EMITTER ARRAY WITH CONTROLLED APEX SHARPNESS - A method of manufacturing field-emitter arrays by a molding technique includes uniformly controlling a shape of mold holes to obtain field emitter tips having diameters below 100 nm and blunted side edges. Repeated oxidation and etching of a mold substrate formed of single-crystal semiconductor mold wafers is carried out, wherein the mold holes for individual emitters are fabricated by utilizing the crystal orientation dependence of the etching rate. | 05-05-2011 |
20110189799 | Method for Transferring a Nano Material from a Substrate to Another Substrate - A method for transferring a nano material formed on a first substrate through deposition techniques to a second substrate, includes: (A) contacting the second substrate with a free end of the nano material on the first substrate; (B) heating the first substrate so that heat is conducted substantially from the first substrate through the nano material to the second substrate to soften a contact portion of a surface of the second substrate that is in contact with the free end of the nano material; (C) after step (B), cooling the second substrate so as to permit hardening of the contact portion of the surface of the second substrate and solid bonding of the nano material to the second substrate; and (D) after step (C), removing the first substrate from the nano material. | 08-04-2011 |
20110212553 | Interfering excitations in FQHE fluids - An apparatus includes a substrate with a planar surface, a multilayer of semiconductor layers located on the planar surface, a plurality of electrodes located over the multilayer, and a dielectric layer located between the electrodes and the multilayer. The multilayer includes a 2D quantum well. A first set of the electrodes is located to substantially surround a lateral area of the 2D quantum well. A second set of the electrodes is controllable to vary a lateral width of a non-depleted channel between the substantially surrounded lateral area of the 2D quantum well and another area of the 2D quantum well. A third set of the electrodes is controllable to vary an area of a non-depleted portion of the lateral area. | 09-01-2011 |
20120301981 | METHOD FOR THE FABRICATION OF ELECTRON FIELD EMISSION DEVICES INCLUDING CARBON NANOTUBE FIELD ELECTRON EMISSON DEVICES - The present invention is directed to a method for the fabrication of electron field emitter devices, including carbon nanotube (CNT) field emission devices. The method of the present invention involves depositing one or more electrically conductive thin-film layers onto a electrically conductive substrate and performing lithography and etching on these thin film layers to pattern them into the desired shapes. The top-most layer may be of a material type that acts as a catalyst for the growth of single- or multiple-walled carbon nanotubes (CNTs). Subsequently, the substrate is etched to form a high-aspect ratio post or pillar structure onto which the previously patterned thin film layers are positioned. Carbon nanotubes may be grown on the catalyst material layer. The present invention also described methods by which the individual field emission devices may be singulated into individual die from a substrate. | 11-29-2012 |
20130280830 | CARBON NANOTUBE FIELD EMISSION DEVICE WITH OVERHANGING GATE - A carbon nanotube field emission device with overhanging gate fabricated by a double silicon-on-insulator process. Other embodiments are described and claimed. | 10-24-2013 |
20150311024 | ELECTRODE COATING FOR ELECTRON EMISSION DEVICES WITHIN CAVITIES - Embodiments of a method for forming a field emission diode for an electrostatic discharge device include forming a first electrode, a sacrificial layer, and a second electrode. The sacrificial layer separates the first and second electrodes. The method further includes forming a cavity between the first and second electrode by removing the sacrificial layer. The cavity separates the first and second electrodes. The method further includes depositing an electron emission material on at least one of the first and second electrodes through at least one access hole after formation of the first and second electrodes. The access hole is located remotely from a location of electron emission on the first and second electrode. | 10-29-2015 |
20160181051 | Nanoparticle-Templated Lithographic Patterning of Nanoscale Electronic Components | 06-23-2016 |