Abstract:
An ion beam implanter includes an ion beam source for generating an ion beam moving along a beam line and a vacuum or implantation chamber wherein a workpiece is positioned to intersect the ion beam for ion implantation of a surface of the workpiece by the ion beam. The ion beam implanter further includes a workpiece support structure coupled to the implantation chamber and supporting the workpiece. The workpiece support structure includes a rotation member rotatably affixed to the implantation chamber. Rotation of the rotation member with respect to the implantation chamber changes an implantation angle of the workpiece with respect to the portion of the ion beam beam line within the implantation chamber. The workpiece support structure further includes a translation member movably coupled to the rotation member and supporting the workpiece for linear movement along a path of travel. The translation member moves along a direction of movement such that a distance that the ion beam moves through the implantation chamber remains constant during movement of the workpiece along its path of travel.
Abstract:
A method and apparatus for generating a plasma in a gas using a thermal source and a heat source in a common reaction zone. A process gas is flowed to a reaction zone and heated with a thermal energy source. Within the same reaction zone, a current is passed in the gas to generate a plasma within the gas. The plasma is directed to a substrate for treatment. The substrate may be a silicon wafer as part of an etching, ashing, wafer cleaning, and chemical vapor deposition.
Abstract:
A method for controlling workpiece deformation presents a first side of a first workpiece having an initial planarity to a first ion beam. The first ion beam deforms the first workpiece to define a first deformation of the first workpiece. A second side of the first workpiece is presented to a second ion beam to define a second deformation of the first workpiece that generally counteracts the first deformation of the first workpiece to define a final planarity of the first workpiece. The first workpiece can be a donor workpiece that is annealed after being presented to the second ion beam to define a split layer on one or more of the first and second sides of the donor workpiece. A receiver workpiece is bonded to the donor workpiece and is split from the donor workpiece to define an engineered substrate.
Abstract:
A light source directs an incident beam at a surface of the workpiece on a stage at an oblique angle. A detector images a diffraction pattern of the incident beam reflected off the workpiece. At least one of a twist angle and a tilt angle of the workpiece on the stage is determined based on the diffraction pattern. The workpiece may be a semiconductor wafer and the stage may be, for example, part of an ion implanter.
Abstract:
A high-energy ion implantation system has an ion source and mass analyzer to form and analyze an ion beam along a beam path. A first RF LINAC accelerates the ion beam to a first accelerator exit, and a second RF LINAC accelerates the ion beam to a second accelerator exit along the beam path. A first magnet between the first and second RF LINACs alters the beam path along a first plane. A third RF LINAC accelerates the ion beam, and a second magnet between the second and third RF LINACs alters the beam path along a second plane. A beam shaping apparatus defines a shape of the ion beam, and a third magnet between the third RF LINAC beam shaping apparatus alters the beam path along a third plane, where the first, second, and third planes are not coplanar.
Abstract:
An electrode apparatus for an ion implantation system has a base plate having a base plate aperture and at least one securement region. A securement apparatus is associated with each securement region, and a plurality of electrode rods are selectively coupled to the base plate by the securement apparatus. The plurality of electrode rods have a predetermined shape to define an optical region that is associated with the base plate aperture. An electrical coupling electrically connects to the plurality of electrode rods and is configured to electrically connect to an electrical potential. The plurality of electrode rods have a predetermined shape configured to define a path of a charged particle passing between the plurality of electrode rods based on the electrical potential. The plurality of electrode rods can define a suppressor or ground electrode downstream of an extraction aperture of an ion source.
Abstract:
A method for implanting high charge state ions into a workpiece while mitigating trace metal contamination includes generating desired ions at a first charge state from a desired species in an ion source, as well as generating trace metal ions of a contaminant species in a first ion beam. A charge-to-mass ratio of the desired ions and the trace metal ions is equal. The desired ions and trace metal ions are extracted from the ion source. At least one electron stripped from the desired ions to define a second ion beam of the desired ions at a second charge state and the trace metal ions. Only the desired ions from the second ion beam are selectively passed only through a charge selector to define a final ion beam of the desired ions at the second charge state and no trace metal ions, and the desired ions of the second charge state are implanted into a workpiece.
Abstract:
A workpiece processing system has a cooling chamber enclosing a chamber volume. A workpiece support within the cooling chamber supports a workpiece having a material with an outgassing temperature, above which, the material outgases an outgas material at an outgassing rate that is toxic to personnel. A cooling apparatus selectively cools the workpiece to a predetermined temperature. A vacuum source and purge gas source selectively evacuates and selectively provides a purge gas to the chamber volume. A controller controls the cooling apparatus to cool the workpiece to the predetermined temperature, where the one or more materials are cooled below the outgassing temperature. The vacuum source and purge gas source are controlled to provide a predetermined heat transfer rate while removing the respective outgas material from the chamber volume.
Abstract:
An ion source for an ion implantation system is configured to form an ion beam from a predetermined species along a beamline, where the ion beam is at an initial energy. A deceleration component is configured to decelerate the ion beam to a final energy that is less than the initial energy. A workpiece support is configured to support a workpiece along a workpiece plane downstream of the deceleration component along the beamline. A beamline component is positioned downstream of the deceleration component along the beamline. The beamline component has a feature that is at least partially impinged by the ion beam, and where the feature has a surface having a predetermined angle of incidence with respect to the ion beam. The predetermined angle of incidence provides a predetermined sputter yield of the ion beam at the final energy that mitigates deposition of the ion species on the beamline component.
Abstract:
An ion implantation system has an ion source to generate an ion beam, and a mass analyzer to define a first ion beam having desired ions at a first charge state. A first linear accelerator accelerates the first ion beam to a plurality of first energies. A charge stripper strips electrons from the desired ions defining a second ion beam at a plurality of second charge states. A first dipole magnet spatially disperses and bends the second ion beam at a first angle. A charge defining aperture passes a desired charge state of the second ion beam while blocking a remainder of the plurality of second charge states. A quadrupole apparatus spatially focuses the second ion beam, defining a third ion beam. A second dipole magnet bends the third ion beam at a second angle. A second linear accelerator accelerates the third ion beam. A final energy magnet bends the third ion beam at a third angle, and wherein an energy defining aperture passes only the desired ions at a desired energy and charge state.