Abstract:
An apparatus may include an ion source generating an ion beam, the ion source coupled to a first voltage. The apparatus may further include a stopping element disposed between the ion source and a substrate position; a stopping voltage supply coupled to the stopping element; and a control component to direct the stopping voltage supply to apply a stopping voltage to the stopping element, the stopping voltage being equal to or more positive than the first voltage when the ion beam comprises positive ions, and being equal to or more negative than the first voltage when the ion beam comprises negative ions, wherein at least a portion of the ion beam is deflected backwardly from an initial trajectory as deflected ions when the stopping voltage is applied to the stopping element.
Abstract:
An isotope generation apparatus is disclosed including: an ion beam source of any of the types described herein; an extractor for extracting the ion beam from the confinement region, where the beam includes a portion of multiply ionized ions in a selected final ionization state; a target including a target material; and an accelerator for accelerating the ion beam and directing the ion beam to the target. The ion beam directed to the target transmutes at least a portion of the target material to a radio-isotope in response to a nuclear reaction between ions in the selected final ion state and atoms of the target material.
Abstract:
A focused ion beam system includes a gas ion source and an emitter structure. The emitter structure includes a pair of conductive pins fixed to a base member, a filament connected between the pair of conductive pins, and an emitter which has a tip end with one atom or three atoms and which is connected to the filament. A supporting member is fixed to the base material, and the emitter is connected to the supporting member.
Abstract:
An ionic liquid ion source can include a microfabricated body including a base and a tip. The body can be formed of a porous material compatible with at least one of an ionic liquid or room-temperature molten salt. The body can have a pore size gradient that decreases from the base of the body to the tip of the body, such that the at least one of an ionic liquid or room-temperature molten salt is capable of being transported through capillarity from the base to the tip.
Abstract:
A high brightness ion source with a gas chamber includes multiple channels, wherein the multiple channels each have a different gas. An electron beam is passed through one of the channels to provide ions of a certain species for processing a sample. The ion species can be rapidly changed by directing the electrons into another channel with a different gas species and processing a sample with ions of a second species. Deflection plates are used to align the electron beam into the gas chamber, thereby allowing the gas species in the focused ion beam to be switched quickly.
Abstract:
A combined scanning and focusing magnet for an ion implantation system is provided. The combined scanning and focusing magnet has a yoke having a high magnetic permeability. The yoke defines a hole configured to pass an ion beam therethrough. One or more scanner coils operably are coupled to the yoke and configured to generate a time-varying predominantly dipole magnetic field when electrically coupled to a power supply. One or more focusing coils are operably coupled to the yoke and configured to generate a predominantly multipole magnetic field, wherein the predominantly multipole magnetic field is one of static or time-varying.
Abstract:
The present invention provides apparatus for an imaging system comprising a multitude of imaging elements upon a substrate. In some embodiments the substrate may be approximately round with a radius of approximately one inch. Various methods relating to using and producing an imaging system are discussed.
Abstract:
Optimization techniques are disclosed for producing sharp and stable tips/nanotips relying on liquid Taylor cones created from electrically conductive materials with high melting points. A wire substrate of such a material with a preform end in the shape of a regular or concave cone, is first melted with a focused laser beam. Under the influence of a high positive potential, a Taylor cone in a liquid/molten state is formed at that end. The cone is then quenched upon cessation of the laser power, thus freezing the Taylor cone. The tip of the frozen Taylor cone is reheated by the laser to allow its precise localized melting and shaping. Tips thus obtained yield desirable end-forms suitable as electron field emission sources for a variety of applications. In-situ regeneration of the tip is readily accomplished. These tips can also be employed as regenerable bright ion sources using field ionization/desorption of introduced chemical species.
Abstract:
A focused ion beam apparatus includes an ion source that emits an ion beam, an extraction electrode that extracts ions from a tip end of an emitter of the ion source, and a first lens electrode that configures a condenser lens by a potential difference with the extraction electrode, the condenser lens focusing the ions extracted by the extraction electrode, in which a strong lens action is generated between the extraction electrode and the first lens electrode so as to focus all ions extracted from the ion source to pass through a hole of the condenser lens including the first lens electrode.
Abstract:
A novel composition, system and method thereof for improving beam current during boron ion implantation are provided. The boron ion implant process involves utilizing B2H6, BF3 and H2 at specific ranges of concentrations. The B2H6 is selected to have an ionization cross-section higher than that of the BF3 at an operating arc voltage of an ion source utilized during generation and implantation of active hydrogen ions species. The hydrogen allows higher levels of B2H6 to be introduced into the BF3 without reduction in F ion scavenging. The active boron ions produce an improved beam current characterized by maintaining or increasing the beam current level without incurring degradation of the ion source when compared to a beam current generated from conventional boron precursor materials.