Patents by Inventor James Peter McNiven

James Peter McNiven has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8497984
    Abstract: A surface inspection system, as well as related components and methods, are provided. The surface inspection system includes a beam source subsystem, a beam scanning subsystem, a workpiece movement subsystem, an optical collection and detection subsystem, and a processing subsystem. Certain of these components, most notably the beam source subsystem, the beam scanning subsystem and the optical collection and detection subsystem are modular for ready field replacement and/or maintenance. The optical collection and detection system features wing collectors in the front quartersphere and back collectors in the back quartersphere for collected light scattered from the surface of the workpiece. This can greatly improve the measurement capabilities of the system. Also included is a method for detecting asymmetric defects using the wing collectors and back collectors.
    Type: Grant
    Filed: December 17, 2005
    Date of Patent: July 30, 2013
    Assignee: KLA-Tencor Corporation
    Inventors: Richard Earl Bills, Neil Judell, Timothy R. Tiemeyer, James Peter McNiven
  • Patent number: 8330947
    Abstract: A surface inspection system includes a beam source subsystem, a beam scanning subsystem, a workpiece movement subsystem, an optical collection and detection subsystem, and a processing subsystem. The optical collection and detection system features back collectors disposed in the back quartersphere, outside the incident plane, for collecting light scattered from the surface of the workpiece. The back collectors are disposed at a relative minimum in the portion of scattered light attributable to haze relative to the portion of scattered light attributable to defect scatter portion, or, alternatively, at a relative minimum in the Rayleigh scatter.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: December 11, 2012
    Assignee: KLA-Tencor Corporation
    Inventors: Richard Earl Bills, Neil Judell, Klaus Reinhard Freischlad, James Peter McNiven
  • Publication number: 20100265518
    Abstract: A surface inspection system includes a beam source subsystem, a beam scanning subsystem, a workpiece movement subsystem, an optical collection and detection subsystem, and a processing subsystem. The optical collection and detection system features back collectors disposed in the back quartersphere, outside the incident plane, for collecting light scattered from the surface of the workpiece. The back collectors are disposed at a relative minimum in the portion of scattered light attributable to haze relative to the portion of scattered light attributable to defect scatter portion, or, alternatively, at a relative minimum in the Rayleigh scatter.
    Type: Application
    Filed: September 30, 2009
    Publication date: October 21, 2010
    Applicant: KLA-Tencor Corporation
    Inventors: Richard Earl Bills, Neil Judell, Klaus Reinhard Rreischlad, James Peter McNiven
  • Publication number: 20100110419
    Abstract: A surface inspection system, as well as related components and methods, are provided. The surface inspection system includes a beam source subsystem, a beam scanning subsystem, a workpiece movement subsystem, an optical collection and detection subsystem, and a processing subsystem. The optical collection and detection system features, in the front quartersphere, a light channel assembly for collecting light reflected from the surface of the workpiece, and a front collector and wing collectors for collecting light scattered from the surface, to greatly improve the measurement capabilities of the system. The light channel assembly has a switchable edge exclusion mask and a reflected light detection system for improved detection of the reflected light.
    Type: Application
    Filed: September 30, 2009
    Publication date: May 6, 2010
    Applicant: KLA-TENCOR CORPORATION
    Inventors: Richard Earl Bills, Neil Judell, Klaus Reinhard Freischlad, James Peter McNiven
  • Patent number: 7659974
    Abstract: In one embodiment, a surface analyzer system comprises a radiation targeting assembly to target a radiation beam onto a surface; and a scattered radiation collecting assembly that collects radiation scattered from the surface. The radiation targeting assembly generates primary and secondary beams. Data collected from the reflections of the primary and secondary beams may be used in a dynamic range extension routine, alone or in combination with a power attenuation routine.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: February 9, 2010
    Assignee: KLA-Tencor Corporation
    Inventors: Richard Earl Bills, James Peter McNiven
  • Patent number: 7605913
    Abstract: A surface inspection system, as well as related components and methods, are provided. The surface inspection system includes a beam source subsystem, a beam scanning subsystem, a workpiece movement subsystem, an optical collection and detection subsystem, and a processing subsystem. The optical collection and detection system features, in the front quartersphere, a light channel assembly for collecting light reflected from the surface of the workpiece, and a front collector and wing collectors for collecting light scattered from the surface, to greatly improve the measurement capabilities of the system. The light channel assembly has a switchable edge exclusion mask and a reflected light detection system for improved detection of the reflected light.
    Type: Grant
    Filed: December 17, 2005
    Date of Patent: October 20, 2009
    Assignee: KLA-Tencor Corporation
    Inventors: Richard Earl Bills, Neil Judell, Klaus Reinhard Freischlad, James Peter McNiven
  • Publication number: 20080304057
    Abstract: In one embodiment, a surface analyzer system comprises a radiation targeting assembly to target a radiation beam onto a surface; and a scattered radiation collecting assembly that collects radiation scattered from the surface. The radiation targeting assembly generates primary and secondary beams. Data collected from the reflections of the primary and secondary beams may be used in a dynamic range extension routine, alone or in combination with a power attenuation routine.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 11, 2008
    Applicant: KLA-Tencor Corporation
    Inventors: Richard Earl Bills, James Peter McNiven
  • Patent number: 7417722
    Abstract: A surface inspection system, as well as related components and methods, are provided. The surface inspection system includes a beam source subsystem, a beam scanning subsystem, a workpiece movement subsystem, an optical collection and detection subsystem, and a processing subsystem. The system features masking positioned in the collection and detection subsystem arranged to selectively prevent a portion of scattered light from passing through. Also included is a scatter absorbing system having a series of scatter absorbing elements for minimizing unrelated to the scatter associated with a desired location on the surface.
    Type: Grant
    Filed: December 17, 2005
    Date of Patent: August 26, 2008
    Assignee: KLA-Tencor Technologies Corporation
    Inventors: Richard Earl Bills, James Peter McNiven