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Patent Searching and Data


Matches 451 - 500 out of 3,741

Document Document Title
WO/1996/013849A1
Multiple gate field emitter devices and sources that are particularly useful as part of a matrix-addressed flat panel display system. In particular, a field emitter device is disclosed of the vertical type that has at least an emitter su...  
WO/1996/010836A1
An electron source (1) for an electron microscope is provided with a needle-shaped electron emitter (20) and a membrane-like, completely closed extraction-electrode (22) which is arranged at a small distance from the tip (21) of the need...  
WO/1996/009626A1
A data storage device including a substrate, a data storage layer on the substrate, and a spin-polarized electron source. The data storage layer comprises a fixed number of atomic layers of a magnetic material which provide the data stor...  
WO/1996/008025A2  
WO/1996/008028A1
A field emitter structure, comprising: a base substrate (42); a field emitter element (48) on the base substrate; a multilayer differentially etched dielectric stack (58, 60) circumscribingly surrounding the field emitter element on the ...  
WO/1996/007195A1
The invention relates to an electron beam generator consisting of a cathode (1), and anode (3) with an anode drilling for the electron beam (6) along a beam axis (5) and a Wehnelt electrode (2) arranged between the cathode (1) and the an...  
WO/1996/006442A2
An imaging apparatus (100) for providing an image from a display (106) to an observer (101), comprising: a display (106) generating an optical output, an imaging surface member (109) constructed and arranged for viewing by said observer,...  
WO/1995/020814A1
A data storage medium comprising a substrate and a data storage layer formed on the substrate. The data storage layer comprises a fixed number of atomic layers of a magnetic material which provide the data storage layer with a magnetic a...  
WO/1995/020821A1
A gated field-emission structure contains an emitter electrode (46), an overlying electrically insulating layer (48), and one or more electron-emissive elements (52) situated in one or more apertures extending through the insulating laye...  
WO/1995/017762A1
Lateral luminescent field emitter device (10) for use in flat panel displays and a method of manufacturing are described. Field enhancing structures such as conical tips, film edges, whiskers, etc. provide only a low current, high densit...  
WO/1995/014307A1
A method and apparatus for treating material surfaces (13) using a repetitively pulsed ion beam (11). In particular, the treatment is tailored by adjusting treatment parameters of a pulsed ion beam (11) to a duration less than or equal t...  
WO/1995/014306A1
An improved magnetically-confined anode plasma pulsed ion beam source (25). Beam rotation effects and power efficiency are improved by a magnetic design which places the separatrix between the fast field flux structure (408) and the slow...  
WO/1995/012211A1
A surface and/or bulk micromachined hermetically sealed cavity (40) containing at least one suspended structure in a low pressure ambient, and the associated fabrication method. The cavity (40) is bounded by a thin-film membrane (21) and...  
WO/1995/007543A1
Electron-emissive elements in area electron emitters suitable for flat-panel displays are fabricated at high packing density. The electron-emissive elements have various shapes such as filaments (30A, 30B, or 30/88D1), cones (1181 or 142...  
WO/1994/020975A1
A vertical field emitter structure (116) and field emission device such as a flat panel display (123) utilizing such structure. Self-aligned gate and emitter fabrication is described, together with virtual column field emitter structures...  
WO/1994/017546A1
An emitter device is disclosed comprising an anode (1) and a cathode (2), both of which are mounted on a substrate (3) made of a dielectric material. The anode (1) is situated at level (AA) below the level (BB) of the edge of the cathode...  
WO/1994/006147A1
The invention can be used in the production of electron beam tubes. The fundamental problem addressed by the invention is that of enhancing the efficiency and power of electron beam tubes while reducing the quantity of X-rays emitted by ...  
WO/1993/021650A1
A flat screen cathode ray tube display (10) is self-supporting. A multiplicity of supports extend from an addressing grid structure (35) to contact the inside surface of a face plate (12) between pixels. A back plate (16) is similarly su...  
WO/1993/017445A1
A deflection apparatus for high perveance ion beams, operating at 20 Hz fundamental and substantially higher order harmonics, has a magnetic structure formed of laminations (72) with thickness in range between 0.2 and 1 millimeter. A com...  
WO/1993/009558A1
A method of fabricating a self-aligned gated electron field emitter. An oxidation process forms an optimized, atomically sharp needle (18) in a silicon substrate (12). The needle and surrounding planar area is conformally coated with sil...  
WO/1993/004496A1
Methods and apparatus for providing signal modulation or control of collector initialized and sustained field emission in field emitter devices without input circuit loading. A special control gate is used to modulate emission with no re...  
WO/1992/021141A1
The method includes the steps of assembling one or more blanks (1) in supporting means (2, 3) so that the or each blank occupies at least the space to be occupied by elongate electrodes and, without disturbing the position of the blanks ...  
WO/1992/016006A1
An integrally controlled field emission device display (100, 110) employing planar field emission devices as controlling elements for non-planar field emission devices utilized for excitation of a cathodoluminescent layer is provided.  
WO/1992/009095A1
An electron source is provided, particularly as a point microcathode wherein a microcathode (MP) is located in a cavity (CA) of a dielectric (3). A first gate electrode (VG1) surrounds the cavity (CA) and a second gate electrode (VG2) su...  
WO/1992/005571A1
A cold-cathode field emission device controls electron emission by using a current source (101) coupled to the emitter (102). The open circuit oltage of the current source (101) is less than the voltage at which the FED would emit electr...  
WO/1992/001305A1
A matrix addressed flat panel display, is disclosed herein and includes a lower planar array of spaced apart, parallel, electrically conductive leads (28) and a matrix array of field emission cathodes (29) connected to and extending up f...  
WO/1991/015870A1
A high performance, vaccum compatible electromagnetic electron lens coil for electron beam systems has reduced gaseous emissions and improved heat dissipation capability. It comprises a wound coil (48) of electrically conductive wire (56...  
WO/1991/012624A1
A cold cathode field emission device that includes a ballast resistor (202, 303, 402) integrally formed therewith and coupled to the emitter (204, 302, 403) to allow appropriate compensation for manufacturing and performance variations i...  
WO/1991/012625A1
A solid state field emission device (100) having a cathode (111) that is peripherally disposed about the anode (106) and axially displaced with respect thereto. The device itself is encapsulated, readily manufacturable, and has comparabl...  
WO/1991/012681A1
The invention is a method and apparatus for facilitating frequency hopping of information in a system, without the use of a baseband hopping unit, by sharing a common TDM bus between a plurality of radio communication units, processing u...  
WO/1991/012660A1
Field emission devices are cascaded in multiple stages, such that certain structures (206, 208, 304, and 307) function as electrodes for field emission devices of differing stages.  
WO/1991/001038A1
A soleno�d magnetic field generating part (5) is arranged along an electron beam (0) of an electron beam unit, and a high-frequency resonator (4) for inducing cyclotron maser is provided in this part (5). High-frequency waves for induc...  
WO/1990/013905A1
Energie is converted by launching a bundle of discrete self-contained electrons. The bundle is guided along a path defined by a channel (584) in a dielectric (582). Energy from the bundle is transferred by a charge transfer mechanism to ...  
WO/1990/011609A1
The CRT gun described comprises a dense-network source of field-effect micro-points. According to the invention, the surface of the source presents irregularities in the distribution of the micro-points, to give priority to certain parts...  
WO/1990/005990A1
A large-area electron source (22) which can operate continuously, stably, and indefinitely in a poor vacuum (20) environment. The source includes a glow discharge cathode, appropriately positioned with respect to a target anode (30) and ...  
WO/1990/001250A1
A wide area electron gun in which an electron beam originates from secondary emission electrons emitted by a target bombarded by ions. A cylindrical main housing (12) has a central region where the secondary emission target is located an...  
WO/1989/011157A1
Several embodiments of a thin film field emission cathode array are described which automatically shape the beams of emitted particles, without the addition of shaping or other electrode structure. A potential field pattern is establishe...  
WO/1989/010003A1
In the preferred application for preionizing TE lasers, in particular excimer lasers, the plasma X-ray tube (ER), which can also be referred to as single-chamber ion tube, has an elongated, box-shaped housing (G) including in its inside ...  
WO/1989/010004A1
A plasma X-ray tube with high electron stream densities, in particular for preionizing gas lasers, is based on the principle of the production of electrons by emission of secondary electrons through ion bombardment. A thin initiating wir...  
WO/1989/006434A1
Disclosed are self-contained high electrical charge density entities, generated in electrical discharge devices (10) including an anode (18) and cathode (12) on opposite sides of a dielectric material (16). Apparatus for isolating the hi...  
WO/1989/004087A1
A microwave distributed amplifier (210) includes a plurality of cascaded field emission triodes (211, 212, 213), each having a field emission element (218) for emitting electrons, a grid (224) disposed downstream from the field emission ...  
WO/1988/010018A1
An optical transmitter assembly (1) comprises an optical source (10) and an optical detector (20) arranged to receive light output from the source (10) indirectly via a deformable reflector (30). This allows tuning of the detector output...  
WO/1988/002180A1
A differential pressure electron beam system comprising means defining at least a first vacuum enclosure (12) adapted to be maintained at a first vacuum level and a second vacuum enclosure (18) adapted to be maintained at a second vacuum...  
WO/1988/001731A1
An ion source provides ions that pass through an analyzing magnet, image slit, and magnetic quadrupole lenses before entering a beam deflector. The deflected ion beam enters a magnetic field established by a dipole magnetic lens of recta...  
WO/1988/001424A1
A rapid random accessed electron beam memory system comprises a disc (14) mounted for rotation and supporting an information storage medium (13). An electron gun (18) is mounted for movement across the disc. The gun has ultra-compactness...  
WO/1988/001020A1
An emission current control system for balancing the individual emission currents from an array of hollow cathodes (12, 14) has current sensors (28, 30) for determining the current drawn by each cathode from a power supply (18). Each cur...  
WO/1987/006053A1
A plasma-anode electron gun includes a cathode means of a material such as molybdenum having a relatively high ratio of emission of secondary electrons to impinging helium ions. A hollow annular anode structure (16) contains an ionized p...  
WO/1986/001032A1
An electron gun (10) that suppresses the non-linear space charge forces and phase-dependant focusing forces that are chiefly responsible for the high emittance of conventional electron guns. The gun comprises a resonant microwave cavity ...  
WO/1986/000465A1
An improved Wire-Ion-Plasma Electron-gun (WIP E-gun) (50), having a very rapid electron beam current interruption capability. An auxiliary grid (65) is employed to provide a potential barrier to the reservoir of plasma ions in the ioniza...  
WO/1986/000466A1
An Electron Beam Controlled Switch employing a radial geometry and a Wire-Ion Plasma-Electron gun (WIP E-gun) as an electron source. The switch comprises an inner cylinder (10) that serves as the WIP E-gun cathode, a cylindrical grid (15...  

Matches 451 - 500 out of 3,741