摘要:
A deposition system includes a substrate holder supporting a substrate defining at least one topographical feature. In addition, the system includes a deposition plume that is directed toward the substrate. A first profiler mask is positioned between the deposition plume and the substrate, and is shaped so as to reduce inboard/outboard asymmetry in a deposition profile associated with the feature.
摘要:
Methods of operating an electromagnet of an ion source for generating an ion beam with a controllable ion current density distribution. The methods may include generating plasma in a discharge space of the ion source, generating and shaping a magnetic field in the discharge space by applying a current to an electromagnet that is effective to define a plasma density distribution, extracting an ion beam from the plasma, measuring a distribution profile for the ion beam density, and comparing the actual distribution profile with a desired distribution profile for the ion beam density. Based upon the comparison, the current applied to the electromagnet may be adjusted either manually or automatically to modify the magnetic field in the discharge space and, thereby, alter the plasma density distribution.
摘要:
Method and apparatus for processing a substrate with a beam of energetic particles. The beam is directed from a source through a rectangular aperture in a shield positioned between the source and substrate to a treatment zone in a plane of substrate movement. Features on the substrate are aligned parallel to a major dimension of the rectangular aperture and the substrate is moved orthogonally to the aperture's major dimension. The beam impinges the substrate through the aperture during movement. The substrate may be periodically rotated by approximately 180° to reorient the features relative to the major dimension of the rectangular aperture. The resulting treatment profile is symmetrical about the sides of the features oriented toward the major dimension of the rectangular aperture.
摘要:
Method and apparatus for processing a substrate with a beam of energetic particles. The beam is directed from a source through a rectangular aperture in a shield positioned between the source and substrate to a treatment zone in a plane of substrate movement. Features on the substrate are aligned parallel to a major dimension of the rectangular aperture and the substrate is moved orthogonally to the aperture's major dimension. The beam impinges the substrate through the aperture during movement. The substrate may be periodically rotated by approximately 180° to reorient the features relative to the major dimension of the rectangular aperture. The resulting treatment profile is symmetrical about the sides of the features oriented toward the major dimension of the rectangular aperture.
摘要:
Method and apparatus for processing a substrate with an energetic particle beam. Features on the substrate are oriented relative to the energetic particle beam and the substrate is scanned through the energetic particle beam. The substrate is periodically indexed about its azimuthal axis of symmetry, while shielded from exposure to the energetic particle beam, to reorient the features relative to the major dimension of the beam.
摘要:
A charged particle apparatus, with multiple electrically conducting semispheric grid electrodes, the grid electrodes mounted in a dielectric mounting ring, with hidden areas or regions to maintain electrical isolation between the grid electrodes as sputter deposits form on the grid electrodes and mounting ring. The grid electrodes are mounted to the mounting ring with slots and fastening pins that allow sliding thermal expansion and contraction between the grid electrodes and mounting ring while substantially maintaining alignment of grid openings and spacing between the grid electrodes. Asymmetric fastening pins facilitate the sliding thermal expansion while restraining the grid electrodes. Electrical contactors supply and maintain electrical potentials of the grid electrodes with spring loaded sliding contacts, without substantially affecting the thermal characteristics of the grid electrodes.
摘要:
Methods of operating an electromagnet of an ion source for generating an ion beam with a controllable ion current density distribution. The methods may include generating plasma in a discharge space of the ion source, generating and shaping a magnetic field in the discharge space by applying a current to an electromagnet that is effective to define a plasma density distribution, extracting an ion beam from the plasma, measuring a distribution profile for the ion beam density, and comparing the actual distribution profile with a desired distribution profile for the ion beam density. Based upon the comparison, the current applied to the electromagnet may be adjusted either manually or automatically to modify the magnetic field in the discharge space and, thereby, alter the plasma density distribution.
摘要:
Method and apparatus for processing a substrate with an energetic particle beam. Features on the substrate are oriented relative to the energetic particle beam and the substrate is scanned through the energetic particle beam. The substrate is periodically indexed about its azimuthal axis of symmetry, while shielded from exposure to the energetic particle beam, to reorient the features relative to the major dimension of the beam.
摘要:
Method and apparatus for processing a substrate with a beam of energetic particles. The beam is directed from a source through a rectangular aperture in a shield positioned between the source and substrate to a treatment zone in a plane of substrate movement. Features on the substrate are aligned parallel to a major dimension of the rectangular aperture and the substrate is moved orthogonally to the aperture's major dimension. The beam impinges the substrate through the aperture during movement. The substrate may be periodically rotated by approximately 180° to reorient the features relative to the major dimension of the rectangular aperture. The resulting treatment profile is symmetrical about the sides of the features oriented toward the major dimension of the rectangular aperture.
摘要:
Ion sources and methods for generating an ion beam with a controllable ion current density distribution. The ion source includes a discharge chamber and an electromagnet adapted to generate a magnetic field for changing a density distribution of the plasma inside the discharge chamber and, thereby, to change the ion current density distribution.