Patent application number | Description | Published |
20080299864 | PROCESS FOR IMPROVING THE EMISSION OF ELECTRON FIELD EMITTERS - This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter. | 12-04-2008 |
20090104834 | PROCESS FOR IMPROVING THE EMISSION OF ELECTRON FIELD EMITTERS - This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter. | 04-23-2009 |
20090314647 | METHOD FOR THE ELECTROCHEMICAL DEPOSITION OF CARBON NANOTUBES - This invention relates to the electrochemical deposition of carbon nanotubes (“CNTs”) on a substrate using an electrochemical cell. A dispersion of a complex of CNTs and an anionic polymer is neutralized and thereby caused to deposit on the anode plate of the cell. | 12-24-2009 |
20100072879 | FIELD EMISSION DEVICE WITH ANODE COATING - A field emission device in which a protective material is employed in relation to the anode wherein the protective material is selected from one or more members of the group consisting of amorphous carbon, graphite, diamond-like carbon, fullerenes, carbon nanotubes, a (co)polymer and an organic coating compound. | 03-25-2010 |
20100119435 | Processes for growing carbon nanotubes in the absence of catalysts - Processes for increasing the production rate of single-wall carbon nanotubes using a disordered carbon target are disclosed. The processes use a disordered carbon target and include vaporization of the target in the presence of a non-oxidizing gas. The single-wall nanotubes produced can be incorporated into electronic devices such as diodes and transistors. | 05-13-2010 |
20100239490 | Processes for growing carbon nanotubes using disordered carbon target - Processes for producing single-wall carbon nanotubes without catalysts are provided. The nanotubes are produced by vaporizing silicon carbide and carbon. | 09-23-2010 |
20110006271 | DIELECTRIC COMPOSITION WITH REDUCED RESISTANCE - This invention provides a dielectric composition comprising a dielectric which is fireable in air at a temperature in the range of about 450° C. to about 550° C. and a conductive oxide selected from the group consisting of antimony-doped tin oxide, tin-doped indium oxide, a transition metal oxide which has mixed valence states or will form mixed valence states after firing in a nitrogen atmosphere at a temperature in the range of about 450° C. to about 550° C. and normally conducting precious metal oxides such as ruthenium dioxide, wherein the amount of conductive oxide present is from about 0.25 wt % to about 25 wt % of the total weight of dielectric and conductive oxide. This dielectric composition has reduced electrical resistance and is useful in electron field emission devices to eliminate charging of the dielectric in the vicinity of the electron emitter and the effect of static charge induced field emission. | 01-13-2011 |
20110101859 | FIELD EMISSION DEVICE WITH PROTECTING VAPOR - A field emission device in which a protectin vapor is present in an evacuated space between a field emission cathode assembly and an anode. The protectin vapor may be one or more hydrogen-containing gases suc as a gas containing M—H bonds where M may be C, Si, B, Al or P. The protecting vapor has within the evacuated space a partial pressure greater than about 10 | 05-05-2011 |
20110232747 | THICK-FILM PASTES AND SOLAR CELLS MADE THEREFROM - This invention relates to thick-film pastes and processes for using such pastes to make solar cell contacts and other circuit devices. In particular, the thick-film pastes comprise a lead-tellurium-oxide frit component, an organic vehicle, and a conductive metal component comprising a silver component and a nickel component. | 09-29-2011 |
20110316177 | POLYIMIDE PARTICLES DERIVED FROM SCRAP POLYIMIDE FILM AND METHODS RELATING THERETO - A method is disclosed for making polyimide powder. The method includes feeding polyimide film material into an extruder, where the extruder has at least one heating zone. The feed rate into the extruder is less than the maximum feed rate of the extruder. The material is then extruded for at least 0.5 seconds at a temperature greater than 300° C. to provide a powdered extrudate. | 12-29-2011 |
20120003476 | POLYIMIDE BASED PURGE MEDIA AND METHODS RELATING THERETO - A method is disclosed for the manufacture of a powdered polyimide extrudate for use as a purge media. The method includes feeding a polyimide film material into an extruder having a first zone that provides heating and a subsequent second zone that provides endothermic shearing. In one embodiment, the resulting purge media comprises a sheared polyimide powder having an average particle size in a range of about 5 to 100 microns (or any sub-range thereof). The purge media can comprises up to 35 weight percent other additives. | 01-05-2012 |
20140061830 | CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREWITH - A conductive paste composition contains a source of an electrically conductive metal, an alkaline-earth-metal boron tellurium oxide, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the paste composition on a semiconductor device substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and establish electrical contact between it and the device. | 03-06-2014 |
20140061831 | CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREWITH - A conductive paste composition contains a source of an electrically conductive metal, a Ti—Te—Li oxide, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the paste composition on a semiconductor substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and establish electrical contact between it and the device. | 03-06-2014 |
20150068598 | CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREWITH - A conductive paste composition contains a source of an electrically conductive metal, an alkaline-earth-metal boron tellurium oxide, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the paste composition on a semiconductor device substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and establish electrical contact between it and the device. | 03-12-2015 |