Patent classifications
H01J2237/0815
UNIAXIAL COUNTER-PROPAGATING MONOLASER ATOM TRAP
A uniaxial counter-propagating monolaser atom trap cools and traps atoms with a single a laser beam and includes: an atom slower that slows atoms to form slowed atoms; an optical diffractor including: a first diffraction grating that receives primary light and produces first reflected light; a second diffraction grating that receives primary light and produces second reflected light; and a third diffraction grating that receives the primary light and produces third reflected light; and a trapping region that forms trap light from the reflected lights and receives slowed atoms to produce trapped atoms from the slowed atoms that interact with the trap light.
ION IMPLANTATION PROCESSES AND APPARATUS USING GALLIUM
An ion source apparatus for ion implantation is described, including an ion source chamber, and a consumable structure in or associated with the ion source chamber, in which the consumable structure includes a solid dopant source material susceptible to reaction with a reactive gas for release of dopant in gaseous form to the ion source chamber, wherein the solid dopant source material comprises gallium nitride, gallium oxide, either of which may be isotopically enriched with respect to a gallium isotope, or combinations thereof.
Tetrode extraction apparatus for ion source
An electrode system for an ion source has a source electrode that defines a source aperture in an ion source chamber, and is coupled to a source power supply. A first ground electrode defines a first ground aperture that is electrically coupled to an electrical ground potential and extracts ions from the ion source. A suppression electrode is positioned downstream of the first ground electrode and defines a suppression aperture that is electrically coupled to a suppression power supply. A second ground electrode is positioned downstream of the suppression electrode and defines a second ground aperture. The first and second ground electrodes are fixedly coupled to one another and are electrically coupled to the electrical ground potential.
Composite ion source based upon heterogeneous metal-metal fluoride system
An ion source is provided. The ion source may include an ion chamber to generate an ion beam comprising a metal ion species; and a charge source, coupled to deliver a metal vapor to the ion chamber, the charge source including a charge mixture. The charge mixture may include a first portion, comprising an elemental metal; and a second portion, comprising a heterogeneous metal fluoride compound.
ION IMPLANTATION APPARATUS AND ION IMPLANTATION METHOD
Provided is an ion implantation method. An ion implantation method according to an embodiment of the inventive concept may include providing a host material and a target into a chamber, the target comprising a first material; irradiating the target with a laser to generate an ion beam; and irradiating the host material with the ion beam to dope the host material with the first material, wherein while the host material is irradiated with the ion beam, the host material is rotated.
DEVICE AND METHOD FOR GENERATING ORGANIC MOLECULAR CLUSTER ION BEAM
Disclosed is a device for generating an organic molecular cluster ion beam, the device including a receiver configured to accommodate an organic material, a cluster generator configured to generate a cluster by supersonic expanding the organic material accommodated in the receiver at a high speed, a photo-ionizer configured to temporarily accommodate the cluster that is generated through the cluster generator, an ultraviolet (UV) light source configured to irradiate an UV pulse to the photo-ionizer to ionize the cluster, and entrance electrodes disposed at both sides of the photo-ionizer and configured to provide a potential difference to the photo-ionizer to generate a cluster ion beam.
Method for Ion Mass Separation and Ion Energy Control in Process Plasmas
Plasma ion energy distribution for ions having different masses is controlled by controlling the relationship between a base RF frequency and a harmonic RF frequency. By the controlling the RF power frequencies, characteristics of the plasma process may be changed based on ion mass. The ions that dominate etching may be selectively based upon whether an ion is lighter or heavier than other ions. Similarly, atomic layer etch processes may be controlled such that the process may be switched between a layer modification step and a layer etch step though adjustment of the RF frequencies. Such switching is capable of being performed within the same gas phase of the plasma process. The control of the RF power includes controlling the phase difference and/or amplitude ratios between a base RF frequency and a harmonic frequency based upon the detection of one or more electrical characteristics within the plasma apparatus.
Ion milling device
An ion milling device which balances high processing speed and a wide processing region with smoothness of a processing surface. The ion milling device includes first to third ion guns that emit unfocused ion beams. An ion beam center of the third ion gun is included in a first plane defined by a normal to a surface of a sample and a mask end, and an ion beam center of the first ion gun and an ion beam center of the second ion gun are included in a second plane. The second plane is inclined toward the mask with respect to the first plane, and an angle formed by the first plane and the second plane is more than 0 degrees and 10 degrees or less. The processing surface of the sample is formed in a region where the emitted ion beams overlap on the surface of the sample.
Negative ribbon ion beams from pulsed plasmas
An apparatus and method for the creation of negative ion beams is disclosed. The apparatus includes an RF ion source, having an extraction aperture. An antenna disposed proximate a dielectric window is energized by a pulsed RF power supply. While the RF power supply is actuated, a plasma containing primarily positive ions and electrons is created. When the RF power supply is deactivated, the plasma transforms into an ion-ion plasma. Negative ions may be extracted from the RF ion source while the RF power supply is deactivated. These negative ions, in the form of a negative ribbon ion beam, may be directed toward a workpiece at a specific incident angle. Further, both a positive ion beam and a negative ion beam may be extracted from the same ion source by pulsing the bias power supply multiple times each period.
High brightness ion beam extraction using bias electrodes and magnets proximate the extraction aperture
An apparatus for the creation of high current ion beams is disclosed. The apparatus includes an ion source, such as a RF ion source or an indirectly heated cathode (IHC) ion source, having an extraction aperture. Disposed proximate the extraction aperture is a bias electrode, which has a hollow center portion that is aligned with the extraction aperture. A magnetic field is created along the perimeter of the hollow center portion, which serves to contain electrons within a confinement region. Electrons in the confinement region energetically collide with neutral particles, increasing the number of ions that are created near the extraction aperture. The magnetic field may be created using two magnets that are embedded in the bias electrode. Alternatively, a single magnet or magnetic coils may be used to create this magnetic field.