Patents by Inventor Randall S. Mundt

Randall S. Mundt 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: 9029728
    Abstract: A sensor apparatus for measuring a plasma process parameter for processing a workpiece. The sensor apparatus includes a base, an information processor supported on or in the base, and at least one sensor supported on or in the base. The at least one sensor includes at least one sensing element configured for measuring an electrical property of a plasma and may include a transducer coupled to the at least one sensing element. The transducer can be configured to receive a signal from the sensing element and convert the signal into a second signal for input to the information processor.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: May 12, 2015
    Assignee: KLA-TENCOR Corporation
    Inventors: Randall S. Mundt, Paul Douglas MacDonald, Andrew Beers, Mason L. Freed, Costas J. Spanos
  • Publication number: 20140312916
    Abstract: A sensor apparatus for measuring a plasma process parameter for processing a workpiece. The sensor apparatus includes a base, an information processor supported on or in the base, and at least one sensor supported on or in the base. The at least one sensor includes at least one sensing element configured for measuring an electrical property of a plasma and may include a transducer coupled to the at least one sensing element. The transducer can be configured to receive a signal from the sensing element and convert the signal into a second signal for input to the information processor.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 23, 2014
    Applicant: KLA-Tencor Corporation
    Inventors: Randall S. Mundt, Paul Douglas MacDonald, Andrew Beers, Mason L. Freed, Costas J. Spanos
  • Patent number: 8698037
    Abstract: A sensor apparatus for measuring a plasma process parameter for processing a workpiece. The sensor apparatus includes a base, an information processor supported on or in the base, and at least one sensor supported on or in the base. The at least one sensor includes at least one sensing element configured for measuring an electrical property of a plasma and may include a transducer coupled to the at least one sensing element. The transducer can be configured to receive a signal from the sensing element and convert the signal into a second signal for input to the information processor.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: April 15, 2014
    Assignee: KLA-Tencor Corporation
    Inventors: Randall S. Mundt, Paul Douglas MacDonald, Andrew Beers, Mason L. Freed, Costas J. Spanos
  • Publication number: 20110240610
    Abstract: A sensor apparatus for measuring a plasma process parameter for processing a workpiece. The sensor apparatus includes a base, an information processor supported on or in the base, and at least one sensor supported on or in the base. The at least one sensor includes at least one sensing element configured for measuring an electrical property of a plasma and may include a transducer coupled to the at least one sensing element. The transducer can be configured to receive a signal from the sensing element and convert the signal into a second signal for input to the information processor.
    Type: Application
    Filed: June 13, 2011
    Publication date: October 6, 2011
    Applicant: KLA-Tencor Corporation
    Inventors: Randall S. Mundt, Paul D. MacDonald, Andrew Beers, Mason L. Freed, Costas J. Spanos
  • Patent number: 7960670
    Abstract: A sensor apparatus for measuring a plasma process parameter for processing a workpiece. The sensor apparatus includes a base, an information processor supported on or in the base, and at least one sensor supported on or in the base. The at least one sensor includes at least one sensing element configured for measuring an electrical property of a plasma and at least one transducer coupled to the at least one sensing element. The transducer is configured so as to receive a signal from the sensing element and converting the signal into a second signal for input to the information processor.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: June 14, 2011
    Assignee: KLA-TENCOR Corporation
    Inventors: Randall S. Mundt, Paul D. MacDonald, Andrew Beers, Mason L. Freed, Costas J. Spanos
  • Patent number: 7722434
    Abstract: Some problems related to processing workpieces are presented along with solutions to one or more of the problems. One embodiment of the invention comprises a sensor apparatus for collecting data representing one or more process conditions used for processing a workpiece. Another embodiment of the present invention is a combination comprising a sensor apparatus and a process tool for applications such as chemical mechanical planarization of workpieces and chemical mechanical polishing of workpieces.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: May 25, 2010
    Assignee: KLA-Tencor Corporation
    Inventor: Randall S. Mundt
  • Patent number: 7531984
    Abstract: Presented are methods, systems, and apparatuses for managing and maintaining an electronic device such as a sensor apparatus.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: May 12, 2009
    Assignee: KLA-Tencor Corporation
    Inventors: Mason L. Freed, Randall S. Mundt, Costas J. Spanos
  • Patent number: 7482576
    Abstract: One or more problems related to processing workpieces using processes that involve optical radiation are presented along with solutions to one or more of the problems. One embodiment of the invention comprises a sensor apparatus for collecting optical radiation data representing one or more process conditions used for processing a workpiece. In a further embodiment, the sensor apparatus is also configured for measuring data other than optical radiation.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: January 27, 2009
    Assignee: KLA-Tencor Corporation
    Inventors: Randall S. Mundt, Andrew Beers, Paul D. MacDonald, Mason L. Freed, Dean Hunt
  • Patent number: 7282889
    Abstract: Presented are methods, systems, and apparatuses for managing and maintaining an electronic device such as a sensor apparatus.
    Type: Grant
    Filed: July 10, 2004
    Date of Patent: October 16, 2007
    Assignee: OnWafer Technologies, Inc.
    Inventors: Mason L. Freed, Randall S. Mundt, Costas J. Spanos
  • Patent number: 7127362
    Abstract: Data are collected for deriving response models and information required for developing and maintaining processes and process tools. Methods and apparatus for collecting the data include a process tolerant sensor apparatus capable of collecting data with less perturbation and fewer disruptions than is usually possible using standard methods.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: October 24, 2006
    Inventor: Randall S. Mundt
  • Patent number: 6907364
    Abstract: Presented are methods, systems, and apparatus for deriving heat flux information and using heat flux information for a workpiece used in temperature sensitive processes.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: June 14, 2005
    Assignee: OnWafer Technologies, Inc.
    Inventors: Kameshwar Poolla, Randall S. Mundt
  • Patent number: 6878301
    Abstract: A method for optically detecting a trench depth includes detecting a first maxima in an intensity of multi-wavelength light. A portion of the multi-wavelength light is reflected from a top trench surface. A second maxima in an intensity of multi-wavelength light is also detected. A portion of the multi-wavelength light is reflected from a bottom trench surface. A maxima peak separation between the first maxima and the second maxima is determined. The trench depth corresponds to the maxima peak separation.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: April 12, 2005
    Assignee: Lam Research
    Inventor: Randall S. Mundt
  • Publication number: 20040267501
    Abstract: Presented are methods, systems, and apparatuses for managing and maintaining an electronic device such as a sensor apparatus.
    Type: Application
    Filed: July 10, 2004
    Publication date: December 30, 2004
    Inventors: Mason L. Freed, Randall S. Mundt, Costas J. Spanos
  • Publication number: 20040236524
    Abstract: Data are collected for deriving response models and information required for developing and maintaining processes and process tools. Methods and apparatus for collecting the data include a process tolerant sensor apparatus capable of collecting data with less perturbation and fewer disruptions than is usually possible using standard methods.
    Type: Application
    Filed: February 9, 2004
    Publication date: November 25, 2004
    Inventor: Randall S. Mundt
  • Publication number: 20040107066
    Abstract: Presented are methods, systems, and apparatus for deriving heat flux information and using heat flux information for a workpiece used in temperature sensitive processes.
    Type: Application
    Filed: September 16, 2003
    Publication date: June 3, 2004
    Inventors: Kameshwar Poolla, Randall S. Mundt
  • Patent number: 6719456
    Abstract: A method of detecting fire ignition sources includes using an electronic temperature sensor to probe potential ignition sites. The fire hazards for the sites are determined based on at least one of measurements of temperatures at or near the site, measurements of rate of temperature rise at or near the site, and measurements of temperature gradients at or near the site. Apparatus for performing the method is also described.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: April 13, 2004
    Inventors: Randall S. Mundt, James C. Mundt
  • Patent number: 6691068
    Abstract: Data are collected for deriving response models and information required for developing and maintaining processes and process tools. Methods and apparatus for collecting the data include a sensor apparatus capable of collecting data with less perturbation and fewer disruptions than is usually possible using standard methods. The sensor apparatus is capable of being loaded into a process tool. From within the process tool, the sensor apparatus is capable of measuring data, processing data, storing data, and transmitting data. The sensor apparatus has capabilities for near real time data collection and communication.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: February 10, 2004
    Assignee: OnWafer Technologies, Inc.
    Inventors: Mason L. Freed, Randall S. Mundt, Costas J. Spanos
  • Publication number: 20030222049
    Abstract: A method for optically detecting a trench depth includes detecting a first maxima in an intensity of multi-wavelength light. A portion of the multi-wavelength light is reflected from a top trench surface. A second maxima in an intensity of multi-wavelength light is also detected. A portion of the multi-wavelength light is reflected from a bottom trench surface. A maxima peak separation between the first maxima and the second maxima is determined. The trench depth corresponds to the maxima peak separation.
    Type: Application
    Filed: April 30, 2003
    Publication date: December 4, 2003
    Applicant: LAM RESEARCH
    Inventor: Randall S. Mundt
  • Patent number: 6642063
    Abstract: Apparatus characterizes the quality of microelectronic features using broadband white light. A highly collimated light source illuminates an area of a first wafer using broadband multi-spectral light. The angular distribution of the light scattered from the first wafer is then measured. Generally, the angle of the light source, detector, or both is altered and an angular distribution measurement taken at each angle, producing a scatter signature for the first wafer. Finally, the scatter signature of the first wafer is compared with a known scatter signature of a second wafer of good quality to determine the quality of the first wafer.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: November 4, 2003
    Assignees: Lam Research Corporation, Verity Instruments, Inc.
    Inventors: Randall S. Mundt, Albert J. Lamm, Mike Whelan, Andrew Weeks Kueny
  • Patent number: 6582619
    Abstract: An inventive method for optically detecting a trench depth in a wafer is disclosed. The method includes detecting a first maxima in the intensity of a multi-wavelength light source, a portion of the light being reflected from the top trench surface of a wafer. A second maxima is then detected in the intensity of the multi-wavelength light source, a portion of which being reflected from the bottom trench surface of a wafer. The method further includes determining a maxima peak difference between the first maxima and the second maxima, wherein the trench depth corresponds to the maxima peak separation. The invention provides a robust, cost effective method for trench depth detection.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: June 24, 2003
    Assignee: Lam Research Corporation
    Inventor: Randall S. Mundt