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| Number | Title | Issue Date |
| 7932477 | Electron beam heating system having carbon nanotubes An electron beam heating system includes a cathode, an anode, a CNT string and a chamber. The CNT string includes an end portion and an emission portion, and the end portion is contacted with and electrically connected to the cathode. The cathode, the anode and CNT ... | 04/26/2011 |
| 7800012 | Electron gun with a focusing anode, forming a window for said gun and application thereof to irradiation and sterilization An electron gun includes a sealed chamber under vacuum. A cathode having an emitting face is placed inside the chamber. An anode forms a sealed window, formed facing the emitting face in one of the walls of the chamber. The anode is capable of allowing electrons emi... | 09/21/2010 |
| 6776324 | Wire bonding apparatus A wire bonding apparatus including a capillary, which allows a tip end of a bonding wire to protrude from the bottom, and a discharge electrode, which generates a spark between the electrode and the tip end of the wire by an electrical discharge; and auxiliary elect... | 08/17/2004 |
| 6492647 | Electron guns for lithography tools The specification describes a method and apparatus for electron beam lithography wherein a Wehnelt electron gun is modified to improve the uniformity of the electron beam. The bias on the Wehnelt aperture is reversed from the conventional bias so that it ... | 12/10/2002 |
| 6417480 | Method of processing a surface of a mold using electric discharge, an electrode used in such processing and a method of manufacturing such an electrode The electrode used in processing a surface of a mold is manufactured as follows. Material powder such as metal powder or metal compound powder is filled in a female mold of the mold. Then the material powder in the female mold is press-molded using a male... | 07/09/2002 |
| 6252339 | Removable bombardment filament-module for electron beam projection systems This method and apparatus permit installing and removing an electron beam generating element comprising a filament or a cathode in a rapidly replaceable module. The apparatus is an electron gun system having an electron gun enclosure, a feed-through eleme... | 06/26/2001 |
| 6064686 | Arc-free electron gun An electron gun that prevents undesirable arcing by providing an improved electrostatic field that generates a confined electron stream, an improved magnetic field that directs the confined electron stream to a crucible with minimal divergence, and an imp... | 05/16/2000 |
| 5945683 | Electron beam exposure device An electron beam exposure device includes an alignment optical system; an electromagnetic lens system; a stage on which the sample is provided; and an electron gun. The electron gun is comprised of an electron generating source; an electron generating sou... | 08/31/1999 |
| 5866974 | Electron beam generator with magnetic cathode-protection unit An electron beam generator includes: an electron emitting cathode (1); an anode (3) with an anode bore (4) for the passage of an electron beam (6); a Wehnelt electrode (2) between the cathode (1) and the anode (3) for controlling the electron beam; the ca... | 02/02/1999 |
| 5686785 | Electron gun having electrically isolated and adjustable cathode An electron gun for producing a beam of electrons has an elongated, linear thermionic cathode and a focusing electrode. The opposite ends of the cathode are engaged by adjustable holders which enable the spatial separation between the cathode and focusing... | 11/11/1997 |
| 5661369 | Charged particle generation with a resonant electrical circuit Apparatus for generating a stream of charged particles, for example for use in an electron beam welding device. The apparatus includes a charged particle source (5) such as a filament and a target (6). The charged particle source (5) is connected in serie... | 08/26/1997 |
| 5623148 | Device for the generation of electron beams The invention which relates to a device for the generating of electron beams with a vacuum chamber, in which a massive cathode (10) is arranged with a wire cathode (14) arranged above and a aperture anode (17) below the massive cathode (10) and whom below... | 04/22/1997 |
| 5514847 | Electron beam radiator with cold cathode integral with focusing grid member and process of fabrication thereof A first laminated sub-structure having a semiconductor substrate, a lower insulating layer on the semiconductor substrate, emitter electrodes formed in micro-apertures in the lower insulating layer and a gate electrode on the upper surface of the lower in... | 05/07/1996 |
| 5418348 | Electron beam source assembly An electron beam source assembly includes a water cooled crucible positioned substantially flush with the top of the block. A magnet is attached to each long sides of the rectangular block to establish parallel opposed pole magnets with the crucible there... | 05/23/1995 |
| 5346554 | Apparatus for forming a thin film An apparatus for forming a thin film irradiates an electron beam on a vaporizable substance held in a crucible. A pair of electromagnets are disposed in coplanar relation and at right angles to each other to generate a magnetic field which deflects the el... | 09/13/1994 |
| 5263044 | Remelting method for recognition and recovery of noble metals and rare metals Method for recognition of noble metals otherwise not recognizable in base material clusters includes using an electron beam furnace in which base material clusters are vaporized by means of an electron beam gun, and the vaporized materials are condensed a... | 11/16/1993 |
| 5182488 | Electron beam gun for use in an electron beam evaporation source The present invention provides an electron beam gun for an electron beam evaporation source in which a beam former shields a filament from an anode such that electrons emitted from the filament are accelerated past the anode in a ribbon-like beam. The fil... | 01/26/1993 |
| 5149934 | High voltage electron beam gun An electron beam gun for operation from 100 to 200 kilovolts which includes means for maintaining the alignment and spacing of critical gun elements over the wide range of temperatures experienced during operation of the gun and which allows for ease in c... | 09/22/1992 |
| 5089686 | Electron beam generator for an electron beam gun In the electron beam generator the cathode (3) the control electrode (4) and the anode (5) are provided with easily replaceable parts (12, 13, 14, 28, 29) so as to be able, by exchanging the parts, to optimize the electron beam generator in a simple manne... | 02/18/1992 |
| 4825033 | Variable shaped spot electron beam pattern generator The electron beam 2 of the generator illuminates a first rectangular aperture 4 which is then imaged on a second rectangular aperture 10 by a magnetic lens 7 having reversible flux. The flux of the lens is chosen so that the focused image of the first ape... | 04/25/1989 |
| 4804395 | Electrode arrangement for lensing method A system is provided for positioning a pair of electrodes on either side of the end portion of an optical fiber extending through a contact, to establish an arc through a cross-aperture in the contact and across the fiber to melt the fiber into a lens, wh... | 02/14/1989 |
| 4760238 | Charged particle beam generation A charge particle beam generator is described which comprises an annular arrangement of filaments (6) which, when heated, emit electrons. A microprocessor controller (not shown) causes a voltage to be applied across each filament (6) in succession so as t... | 07/26/1988 |
| 4755203 | Optic fiber positioning for lensing method A system is described for forming a lens at the end of an optical fiber which extends through a hole in a contact, so the tip of the lens lies at a desired lens position located a predetermined distance rearward of the tip of the contact. The fiber is fix... | 07/05/1988 |
| 4743283 | Alternating current arc for lensing system and method of using same A system is provided for forming an end of an optical fiber into a lens, which produces a lensed fiber having an especially smooth lens surface and high strength near the intersection of the lens and the rest of the fiber. A lens is formed by establishing... | 05/10/1988 |
| 4728850 | Mounting means for mounting spiral wire cathodes In a mounting device for electrically heated, spirally wound wire cathodes in electron guns, two mounting posts joined together by an insulator are configured as sector-shaped sections of a hollow cylinder, and have each a circumferential groove on its en... | 03/01/1988 |
| 4687902 | Electron-beam welding apparatus Electron beam welding apparatus, suitable as a mobile welding apparatus, having a solid dielectric insulator for the high voltage electrical conductors and also having liquid coolants for cooling the conductors and the insulator which are heated by the ca... | 08/18/1987 |
| 4665297 | High power electron gun A high beam power electron gun of the axial type, particularly useful in large-scale vacuum metallurgy plants for melting, vaporizing and heat treating. The electron gun is controllable over its entire power range, i.e., from 10% to 100% of its nominal po... | 05/12/1987 |
| 4654506 | Method and apparatus for detecting and regulating position of welding electron beam A method and apparatus for detecting and regulating a focused condition of an electron beam emitted from an electron gun of an electron beam welding apparatus. An electron beam of a low intensity is first directed onto the workpiece. The coil current of a... | 03/31/1987 |
| 4622453 | Electron beam gun mounting on a work chamber An electron beam gun comprising a beam generator (4), an acceleration chamber (7) and a beam-guide chamber (10). The beam-guide chamber is formed by a jacket tube (19) and a beam-guide tube (18), which extends to the work chamber (1) and is surrounded by ... | 11/11/1986 |
| 4599869 | Cryogenic deposition of catalysts A reactor for performing reactions at very low, i.e. cryogenic temperatures has a collection vessel mounted above an electron gun to collect vaporized material such as metals, metal oxides, metal salts and metal halides. The collection vessel is maintaine... | 07/15/1986 |
| 4574178 | Electron gun An electron gun with a beam generator 4, a high-voltage connection 25 and a high-voltage insulator 23 is equipped with at least one insulating transformer 26, 27 and circuit elements 43 for producing auxiliary voltages at high-voltage potential. The beam ... | 03/04/1986 |
| 4574179 | Ion beam machining device The disclosed ion beam machining device has a plasma-generating chamber, a machining chamber, and an ion-extracting grid disposed between the two chambers, which grid has an insulator layer facing the plasma-generating chamber and a conductor layer facing... | 03/04/1986 |
| 4527044 | Apparatus for treating a sample by a pulsed electron beam The invention relates to an apparatus for treating samples comprising in a vacuum enclosure a cathode, an actual anode and a grid, as well as means for supplying the sample to the enclosure, a high voltage generator, a capacitor C1 charged by w... | 07/02/1985 |
| 4484058 | Electron beam hole drilling apparatus When drilling very small diameter holes in workpieces, there is a great tendency for expulsed workpiece material to travel back along the electron beam path, and to deposit as debris within the interior of the gun. The debris is caused to mostly land at a... | 11/20/1984 |
| 4371774 | High power linear pulsed beam annealer A high power pulsed electron beam is produced in a system comprised of an electron gun having a heated cathode, control grid, focus ring, and a curved drift tube. The drift tube is maintained at a high positive voltage with respect to the cathode to accel... | 02/01/1983 |
| 4335314 | Generator for pulsed electron beams A generator for pulsed electron beams of the type including a vacuum chamber for performing high voltage discharges, cathode and anode electrodes, for irradiating a sample with accelerated charge carriers, provided in the vacuum chamber, and a first high ... | 06/15/1982 |
| 4335297 | Electron beam processor An electron beam processor with an energy storage line and matched field emission diode that define a high energy electron beam generator. A transport system positions a specimen to be thermally processed in a processing station. Energy stored on the line... | 06/15/1982 |
| 4271348 | Electron beam welding method and apparatus therefor An electron beam welding apparatus is provided with a magnetic shielding pipe for preventing electron beams emitted from being deflected by stray magnetic fields, and a removing device for removing metal deposit accumulated on a tip portion of the magneti... | 06/02/1981 |
| 4243866 | Method and apparatus for forming a variable size electron beam In electron beam apparatus having a souce of electrons and a target area toward which the electrons are directed, electron beam forming means are provided along the path from the source to the target. These forming means include a first beam shaping membe... | 01/06/1981 |
| 4147915 | Electron-beam apparatus for thermal treatment by electron bombardment An electron-beam apparatus for thermal treatment by electron bombardment, comprising a power supply, a vacuum chamber accommodating an object being treated, an electron gun including a cathode which is the source of an electron flow and an accelerating el... | 04/03/1979 |
