Abstract:
A method for treatment of products in gas-discharge plasma consists in that a two-step vacuum-arc discharge is initiated between an anode (3) and an integrally cold cathode (2), featuring a metal-gaseous step of plasma and a gaseous step of plasma. The gaseous step of plasma is established by ionizing the working gas with electrons separated from the metal-gaseous step of plasma. Then a product (5) under treatment is preheated to working temperature and held in a preset temperature range. To this end, provision is made in the device for a means (13) for electron separation from the metal-gaseous step of plasma, which means is situated in the zone of the integrally cold cathode (2) and is impermeable to the metal ions generated by the cathode (2). In a particular case the means (13) is made as a set of V-shaped plates (14).
Abstract:
Methods and apparatus for etching ultra fine lines of impurities on semiconductors and other materials. A cold diverging ion beam is generated, made to converge, encoded using a mask to correspond to an image, and then used to etch impurities on the substrate. An ECR plasma source is used to generate a warm plasma. A cooled neutral target gas is penetrated by the warm plasma ions so that the plasma ion charge is transferred to the cool target gas to provide cool ions, which are then extracted to provide a cryogenic ion beam. The ion beam is made converging and then encoded by the mask. The ion beam also may be transformed into an atom beam in a charge exchange cell.
Abstract:
The present disclosure is directed to semiconductor deposition tools having a specimen support, at least one ion gun directed to a specimen positioned on the specimen support, at least one source, and at least one electron beam gun directed at the source. In an aspect, the electron beam guns, sources, and ion beam guns are positioned below the specimen support and specimen positioned thereon, which has its top surface facing downward. In another aspect, the method includes activating the electron beam gun and depositing the source material in a trench in the specimen and on surfaces adjacent to the opening of the trench and activating the ion beam gun to remove portions of the source material deposited on the surfaces adjacent to the opening of the trench.
Abstract:
An ion implantation system, ion source, and method are provided, where an ion source is configured to ionize an aluminum-based ion source material and to form an ion beam and a by-product including a non-conducting material. An etchant gas mixture has a predetermined concentration of fluorine and a noble gas that is in fluid communication with the ion source. The predetermined concentration of fluorine is associated with a predetermined health safety level, such as approximately a 20% maximum concentration of fluorine. The etchant gas mixture can have a co-gas with a concentration less than approximately 5% of argon. The aluminum-based ion source material can be a ceramic member, such as a repeller shaft, a shield, or other member within the ion source.
Abstract:
A method to improve plasma discharge efficiency by attaching one or more booster chambers to the main discharge chamber is disclosed here. The booster chamber functions as a plasma discharge amplification device for the main discharge chamber. It improves plasma density significantly, especially at pressure below 50 mTorr. Compared with traditional inductively coupled plasma (ICP) source, the strength of the plasma source enhanced with booster chamber has been improved several folds at low pressure conditions. Booster chamber can also be used as a convenient high speed plasma etching and deposition processing chamber for small samples. A method to gauge plasma strength by measuring plasma emission intensity has also been disclosed in this application.
Abstract:
A method to improve plasma discharge efficiency by attaching one or more booster chambers to the main discharge chamber is disclosed here. The booster chamber functions as a plasma discharge amplification device for the main discharge chamber. It improves plasma density significantly, especially at pressure below 50 mTorr. Compared with traditional inductively coupled plasma (ICP) source, the strength of the plasma source enhanced with booster chamber has been improved several folds at low pressure conditions. Booster chamber can also be used as a convenient high speed plasma etching and deposition processing chamber for small samples. A method to gauge plasma strength by measuring plasma emission intensity has also been disclosed in this application.
Abstract:
A vacuum is maintained inside a vacuum partition (1). The whole of the solid packed container (3) is disposed inside the vacuum partition (1). A heater (7) sublimates the aluminum chloride (8) packed in lid packed container (3) to generate an aluminum chloride gas (9). An arc chamber (6) ionizes the aluminum chloride gas (9) and emits an ion beam (11) of the ionized aluminum chloride gas (9). A gas supply nozzle (10) leads the aluminum oride gas (9) from the solid packed container (3) into the arc chamber (6). A supporting part (4) supports and fixes the solid packed container (3) on the vacuum partition (1). A thermal conductivity of the supporting part (4) is lower than thermal conductivities of the vacuum partition (1) and the solid packed container (3).
Abstract:
A novel composition, system and method for improving beam current during boron ion implantation are provided. In a preferred aspect, the boron ion implant process involves utilizing B2H6, 11BF3 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.
Abstract:
A method for using a Focused Ion Beam and/or Scanning Electron Microscope (FIB/SEM) for etching one or more alignment markers on a rock sample, the one or more alignment markers being etched on the rock sample using the FIB/SEM. The one or more alignment markers may further be deposited with a platinum alloy or other suitable compositions for increasing alignment marker visibility.
Abstract:
An ion implantation system and method is provided for varying an angle of incidence of a scanned ion beam relative to the workpiece concurrent with the scanned ion beam impacting the workpiece. The system has an ion source configured to form an ion beam and a mass analyzer configured to mass analyze the ion beam. An ion beam scanner is configured to scan the ion beam in a first direction, therein defining a scanned ion beam. A workpiece support is configured to support a workpiece thereon, and an angular implant apparatus is configured to vary an angle of incidence of the scanned ion beam relative to the workpiece. The angular implant apparatus comprises one or more of an angular energy filter and a mechanical apparatus operably coupled to the workpiece support, wherein a controller controls the angular implant apparatus, thus varying the angle of incidence of the scanned ion beam relative to the workpiece concurrent with the scanned ion beam impacting the workpiece.