Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 401 - 450 out of 3,742

Document Document Title
WO/1999/040600A2
Field emission devices may include emitter wells formed in a body of dielectric material. A gate conductor may be provided along the upper surface of the dielectric material. A gate hole may be provided in the gate conductor directly abo...  
WO/1999/039361A1
A plurality of field emission cathodes (601) generate an emission of electrons, wherein the emission of electrons is then controlled and focused using various electrodes (602, 603, 604) to produce an electron beam. Horizontal and vertica...  
WO/1999/035659A1
An apparatus for high speed gating of electric current based on the resonant interaction of tunnelling electron with optical fields is disclosed. The present invention biases an electron-emitting tip with a DC voltage source and focuses ...  
WO/1999/034229A1
A method for profiling the magnetic fields of periodic permanent magnetic field structures as performed by using an electromagnetic solver to generate data fields representative of each individual magnet's contribution to the total vecto...  
WO/1999/030348A1
An electron source includes a negative electron affinity photocathode (10) on a light-transmissive substrate (12) and a light beam generator (50) for directing a light beam (22) through the substrate (12) at the photocathode (10) for exc...  
WO/1999/030341A1
The present invention relates to a cathodic module comprising a field emitter and a secondary electronic emitter as well as to a vacuum electronic apparatus which comprises such a module and has its anode coated with a luminophore. This ...  
WO/1999/027419A1
Optical patterns and lithographic techniques are used as part of a process to embed parallel and evenly spaced conductors in the non-planar surfaces of an insulator to produce high gradient insulators. The approach extends the size that ...  
WO/1999/023679A1
An electron-emitting device contains a vertical emitter resistor patterned into multiple laterally separated sections (34, 34V, 46, or 46V) situated between the electron-emissive elements (40), on one hand, and emitter electrodes (32), o...  
WO/1999/019896A1
The invention concerns an electron source with microtips comprising: at least an electronic transmitting zone consisting of a plurality of microtips (45) electrically connected to a cathode conductor (41); at least a grid electrode (43) ...  
WO/1999/018423A1
The invention introduces applications of the use of coherent and non-coherent light in the high wavelengths of the visible spectrum and in the near wavelengths of the infrared spectrum. The applications include a system for the identific...  
WO/1999/017324A1
A structure and method for forming and anodized raw electrode (200) for a field emission display device. The raw electrode having first non-anodized regions (202, 204) and second anodized regions (206).  
WO/1999/016134A1
A high aspect ratio gated emitter structure (10) and a method of making the structure are disclosed. Emitters (202) may be provided in a densely packed array on a support (100). Two distinct layers of insulator material (320, 340) may su...  
WO/1999/014780A1
A flat panel display includes a cathodic structure (100). The cathodic structure includes a row metal (106) composed of stripes of aluminum overlaid by a layer (107) of cladding material.  
WO/1999/000817A1
An electron-emitting device employs a multi-layer resistor (46). A lower layer (48) of the resistor overlies an emitter electrode (42). An electron-emissive element (54) overlies an upper layer (50) of the resistor. The two resistive lay...  
WO/1998/054750A1
An electron beam source includes a cathode (200) having an electron emission surface including an active area (208) for emission of electrons and a cathode shield assembly (220) including a conductive shield disposed in proximity to the ...  
WO/1998/054745A1
An electron-emitting device contains an electron focusing system (37 or 37A) formed with a base focusing structure (38 or 38A) and a focus coating (39 or 39A) that penetrates, preferably only pathway, into a focus opening (40) extending ...  
WO/1998/054741A1
An electron-emitting device utilizes an emitter electrode (12) shaped like a ladder in which a line of emitter openings (18) extend through the electrode. In fabricating the device, the emitter openings can be utilized to self-align cert...  
WO1998032145A3  
WO/1998/044529A1
Diamond microtip field emitters (25) are fabricated for use in diode and triode vacuum microelectronic devices, sensors and displays. Ultra-sharp emitter tips are formed in a fabrication process in which diamond is deposited into mold ca...  
WO/1998/032145A2
A device useful as a display element has an electron emitter (40) and an anode (30) disposed to receive electrons emitted from the emitter. The anode has surface portions differing in resistivity, providing an electron sink portion (80) ...  
WO/1998/029895A1
An electron accelerator (10) includes a vacuum chamber (46) having an electron beam exit window (24). An electron generator (31) is positioned within the vacuum chamber for generating electrons. A housing (30) surrounds the electron gene...  
WO/1998/020516A1
Disclosed is a flat device for displaying data that comprises a matrix of display elements with passive or active addressing based on a film system with a flat autoemission cathode, as well as a screen with a cathodoluminescent coating. ...  
WO/1998/010457A1
A field emission display includes electrostatic discharge protection circuits coupled to an emitter substrate and an extraction grid. In the preferred embodiment, the electrostatic discharge circuit includes diodes reverse biased between...  
WO/1998/010458A1
An atomic force microscope utilizes an optical system having a numerical aperture sufficient with the wavelength of light of an incident beam (44) to form a spot on a cantilever (14) having a size of 8 micrometers or less in at least one...  
WO1998001886A3  
WO/1998/001886A2
A design of an electron optical system is proposed, the design is based on a module approach to its production: a cathode module (100), an electrode module (200), and an anode module (300) are realized separately. Versatility of the elec...  
WO/1997/049111A1
A method and apparatus for focusing dispersed charged particles. More specifically, a series of elements, each having successively larger apertures forming an ion funnel, wherein RF voltages are applied to the elements so that the RF vol...  
WO/1997/044805A1
The present invention pertains to an electron gun that generates an electron flow to produce r.f. energy therefrom. The electron gun (10) comprises an electrostatic cavity (12) having a first stage (14) with emitting faces (16) and multi...  
WO/1997/044804A1
The present invention pertains to an electron gun that generates multiple electron bunches to produce r.f. energy. The electron gun (10) comprises an r.f. input cavity having a first multiple emitting surface (14, 16) and a second multip...  
WO/1997/042645A1
A field-electron-emission triode is based on silicon emitters prepared from an oriented whisker array. The whiskers were epitaxially grown on a (111) oriented single-crystalline silicon substrate by crystallization from vapor phase accor...  
WO/1997/027612A1
An electron beam device (10) has a cathode (34) that generates a fan-shaped electron beam. A first focusing lens (44, 46, 48, 50) includes first (48) and second (50) plates on opposed sides of a filament. The edges of the plates closest ...  
WO/1997/017715A1
The invention relates to a pulsed electron beam source based on the vacuum diode principle and comprising: a vacuum diode with a multipoint emission cathode; a control grid; a pulse generator; a magnetic compression unit made from field ...  
WO1997003453A3  
WO1997009731A3  
WO/1997/009731A2
A field emitter device formed by a veil process wherein a protective layer (64/66) comprising a release layer (64) is deposited on the gate electrode layer (62) for the device, with the protective layer overlying the circumscribing perip...  
WO/1997/009733A1
Microelectronic field emission device (10) has an ultra-thin emitter electrode (30) extending parallel to substrate (20) and an anode (40). A control electrode (70) having a lateral dimension a small fraction of the emitter-to-anode gap ...  
WO/1997/009734A1
Electron-optical device having two elongate emitting regions arranged symmetrically with respect to a longitudinal axis for producing two electron beams having an elongate cross section. By means of electron grids, the two beams are focu...  
WO/1997/009732A1
Electron-optical device having an electron-emitting region, a longitudinal axis and an arrangement of apertured electron grids along the axis. The first grid has an aperture for passing electrons, which aperture is located further outwar...  
WO/1997/008726A1
An electron source comprises cathode means and a permanent magnet perforated by a plurality of channels extending between opposite poles of the magnet. Each channel forms electrons received from the cathode means into an electron beam fo...  
WO/1997/008730A1
A display system comprises a display screen including a matrix of display elements and a permanent magnet having an array of channels formed therein. Each channel corresponds to a different display element. Each display element comprises...  
WO/1997/003453A2
An electron source includes a negative electron affinity photocathode on a light-transmissive substrate and a light beam generator for directing a light beam through the substrate at the photocathode for exciting electrons into the condu...  
WO/1996/042101A1
The electron source comprises a uniform microscopically flat carbon nanotube film parallel to which and close to which are one or several perforated thin conducting plates, which are electrically insulated from the microscopically flat c...  
WO1996033537A3  
WO/1996/038854A1
A lateral field-emission device (10) has a lateral emitter (100) substantially parallel to a substrate (20) and has a simplified anode structure (70). The anode's top surface is precisely spaced apart from the plane of the lateral emitte...  
WO/1996/038855A1
A process for fabricating, in a planar substrate, a hermetically sealed chamber for a field-emission cell or the like, allows operating the device in a vacuum or a low pressure inert gas. The process includes methods of covering an openi...  
WO/1996/036061A1
A lateral-emitter field-emission device includes a thin-film emitter cathode (50) of thickness less than several hundred angstrom and has an edge or tip (110) with small radius of curvature. In the display cell structure, a cathodolumine...  
WO/1996/035219A1
The present invention relates to a grid electron tube whose cathode is comprised of an emissive part (12) which delimits a substantially central recess (11). Said cathode reduces considerably the emission of spurious electrons of the gri...  
WO/1996/033537A2
A passive region (3) is provided adjacent the mirror surface (20) of a laser by the known method. A mesa (12) is formed in that case with an end face parallel to the mirror surface to be formed. The passive region (3) is grown against th...  
WO1996006442A3  
WO/1996/016426A1
A particle-beam column comprising a needle-type ions source (1) such as a liquid metal ion source, one or more round lenses (2), and a plurality of interleaved quadrupole lenses (14, 16). Also an ion-beam column comprising a liquid alloy...  

Matches 401 - 450 out of 3,742