Abstract:
A method for manufacturing a triode type cathode structure including depositing and etching: a cathode layer as cathode conductors; a grid layer as grid conductors; an electrical insulation layer and the grid conductors until reaching a resistive layer to provide cavities; and the cathode conductors to have a perforated structure at the intersection of the cathode conductors and grid conductors. Etching the grid conductors and the electrical insulation layer includes: a) depositing a resin layer on the grid layer, b) lithography and development of the resin layer according to a pattern that will form emissive pads, c) etching the grid layer according to the pattern, d) etching the insulation layer subjacent to the grid layer by extending the etching beyond emissive pad patterns, e) etching the grid layer at zones exposed by etching the insulation layer until reaching the resin layer, f) depositing a catalyst layer in openings of the resin layer to form emissive pads at the bottom of the cavities, and g) eliminating the resin layer.
Abstract:
An electron source has a plurality of electron-emitting devices, a plurality of scanning wirings and a plurality of modulation wirings which connect the plurality of electron-emitting devices into a matrix pattern, a scanning wiring connecting electrode which connects the electron-emitting device and the scanning wiring, a modulation wiring connecting electrode which connects the electron-emitting device and the modulation wiring, and a bypass wiring which is insulated from the scanning wiring and the modulation wiring and is arranged in parallel with the scanning wiring or the modulation wiring. The connecting electrode of any one of the scanning wiring connecting electrode and the modulation wiring connecting electrode, which is closer to the bypass wiring, has an overcurrent suppressing portion which suppresses flowing of a certain or more electric current to the connecting electrode.
Abstract:
An electron emission element is provided with at least one electrode, an electron emission region, and a resistance layer for electrically connecting the electrode to the electron emission region. The resistance layer is formed of one of a metal oxide material and a metal nitride material.
Abstract:
A thrombectomy apparatus for breaking up thrombus or other obstructive material in a lumen of a vascular graft or vessel includes a flexible sheath and a wire positioned within the flexible sheath, wherein the wire and flexible sheath are relatively movable. The wire is substantially sinuous in configuration and assumes a substantially sinuous shape when deployed from the flexible sheath and a straighter configuration when retracted into the flexible sheath. The wire is operatively connected to a motor for rotation of the wire to enable the deployed wire to break up the thrombus or other obstructive material.
Abstract:
An electron emission element is provided with at least one electrode, an electron emission region, and a resistance layer for electrically connecting the electrode to the electron emission region. The resistance layer is formed of one of a metal oxide material and a metal nitride material.
Abstract:
An image formation apparatus is disclosed which includes, within an enclosure configured by a pair of substrates placed face to face and an external frame placed between the substrates, an electron source placed on one of the pair of substrates, an image formation material placed on the other substrate, and spacers placed between the substrates, characterized in that the spacers and the external frame is conductive and device is provided for electrically connecting the spacers and the external frame so that the equipotential surfaces between the spacers and the external frame are quasi-parallel when driven.
Abstract:
Provided is a field emission display in which a gate hole having an inclined inner wall and a gate electrode around the gate hole are formed between an anode plate having a phosphor and a cathode plate having a field emitter and a control device for controlling a field emission current, whereby the voltage applied to the gate electrode of the gate plate serves to prohibit an electron emission of the field emitter by the anode voltage, and prevent a local arching by forming a totally uniform potential, so that the life time of the field emission display can be improved, and the gate hole having the inclined inner wall enables a fabrication of a filed emission display panel having a high brightness without an additional focusing grid.
Abstract:
An apparatus for stabilizing the threshold voltage in an active matrix field emission device is disclosed. The apparatus includes the formation of radiation-blocking elements between a cathodoluminescent display screen of the FED and semiconductor junctions formed on a baseplate of the FED.
Abstract:
Described herein is a resistor layer for use in field emission display devices and the like, and its method of manufacture. The resistor layer is an amorphous silicon layer doped with nitrogen and phosphorus. Nitrogen concentration in the resistor layer is preferably between about 5 and 15 atomic percent. The presence of nitrogen and phosphorus in the silicon prevents diffusion of Si atoms into metal conductive layers such as aluminum, even up to diffusion and packaging temperatures. The nitrogen and phosphorus also prevent defects from forming at the boundary between the resistor layer and metal conductor. This leads to better control over shorting and improved resistivity in the resistor.
Abstract:
Provided is a field emission display in which a gate hole having an inclined inner wall and a gate electrode around the gate hole are formed between an anode plate having a phosphor and a cathode plate having a field emitter and a control device for controlling a field emission current, whereby the voltage applied to the gate electrode of the gate plate serves to prohibit an electron emission of the field emitter by the anode voltage, and prevent a local arching by forming a totally uniform potential, so that the life time of the field emission display can be improved, and the gate hole having the inclined inner wall enables a fabrication of a filed emission display panel having a high brightness without an additional focusing grid.