Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

548results about "Non-emitting electrodes manufacture" patented technology

Picosecond pulse laser cutting preparation method for grid-control traveling wave tube grid mesh

The invention discloses a picosecond pulse laser cutting preparation method for a grid-control traveling wave tube grid mesh. The method comprises the following steps of performing cleaning, hydrogen burning and annealing on a grid mesh material, then pressing the grid mesh material through a die on a punching machine to form a spherical grid mesh blank with high curvature radius precision, performing destressing hydrogen burning on the blank to eliminate stress during processing to guarantee the stability of the curvature radius of a spherical cap of a grid mesh, and finally cutting the grid mesh by adopting picosecond pulse laser of an optimized technology to prepare the grid-control traveling wave tube grid mesh with high size precision and high consistency. According to the preparation method for the grid mesh of a grid-control traveling wave tube, specific technical parameters of picosecond laser cutting are screened through a large number of experiments, the operability is high, the technical design is reasonable, and the application range is large; the prepared grid mesh is high in size precision, high in consistency, high in yield and high in reliability and has an important application value; the shortcoming of an existing electric spark grid mesh processing technology can be effectively overcome.
Owner:NANJING SANLE GROUP

Method of manufacturing light emitting element and method of manufacturing display apparatus having the same

InactiveUS20080090484A1Improving luminance and uniformity of luminanceImprove luminanceElectroluminescent light sourcesSolid-state devicesEngineeringLuminescent material
In a method of manufacturing a light emitting element, a plurality of first electrodes arranged in a matrix shape is formed on a pixel area of a base substrate. A bank is formed between the first electrodes. A light emitting material is ejected on a portion of the first electrodes spaced apart from one another to form a plurality of first light emitting patterns. The light emitting material is erected on a portion of the first electrodes between the first light emitting patterns to form a plurality of second light emitting patterns. A second electrode is formed on the first and second light emitting patterns. Therefore, a luminance of the light emitting element is improved and uniformized.
Owner:LEE DONG WON +2

Field emission devices made with laser and/or plasma treated carbon nanotube mats, films or inks

Field emission devices comprising carbon nanotube mats which have been treated with laser or plasma are provided. Mats are formed from carbon nanotubes, also known as carbon fibrils, which are vermicular carbon deposits having diameters of less than about one micron. The carbon nanotube mats are then subjected to laser or plasma treatment. The treated carbon nanotube mat results in improved field emission performance as either a field emission cathode or as part of a field emission device.
Owner:HYPERION CATALYSIS INT

Micro x-ray source

A micro X-ray source comprising a target acting as anode, and a cathode, which during operation interacts with the target and functions as electron source, wherein the target is embodied as a metal foil possessing a spot where the electrons from the electron source arrive, and the metal foil being locally thinner at the spot.
Owner:TECH UNIV DELFT

Self-aligned gated carbon nanotube field emitter structures and associated methods of fabrication

InactiveUS20050067936A1Simple and cost-effective and efficientDischarge tube luminescnet screensElectric discharge tubesElectrical conductorField line
A method for fabricating a self-aligned gated carbon nanotube field emitter structure includes providing a substrate, depositing a dielectric material on the surface of the substrate and depositing a conductor layer on the surface of the dielectric material. The method also includes selectively etching the conductor layer to form an opening and selectively etching the dielectric material to form a micro-cavity. The method further includes depositing a base layer structure in the micro-cavity adjacent to the surface of the substrate, wherein the base layer structure has a substantially conical shape, and depositing a catalyst on a portion of the surface of the base layer structure, wherein the catalyst is suitable for growing at least one carbon nanotube. The method still further includes applying an electrical potential to the substrate and the conductor layer, wherein the electrical potential generates a plurality of electrical field lines that are deflected around the surface of the base layer structure, and wherein the plurality of electrical field lines have a strength that is greatest in a direction substantially perpendicular to the surface of the substrate. Finally, the method includes growing at least one carbon nanotube from the catalyst in the presence of the plurality of electrical field lines, wherein the at least one carbon nanotube is grown in a direction substantially perpendicular to the surface of the substrate.
Owner:GENERAL ELECTRIC CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products