Patents by Inventor Steven C. Catlett

Steven C. Catlett 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: 8185227
    Abstract: A first linear combination of a local moving aggregated quantity derived from a WIP distribution and a global aggregated quantity derived from the WIP distribution is calculated for each range for a given product type in a manufacturing line. The first linear combination serves as a first throughput target for the range and product. A second linear combination of a standard deviation of the non-zero portion of the WIP distribution and the global aggregated quantity is calculated for the product type in the manufacturing line. The coefficients of this second linear combination are predetermined. This second linear combination serves as a second throughput target. A throughput target for each range is determined by determining the minimum of the first throughput target, which can be different for each range, and the second throughput target, which is common across all ranges.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: May 22, 2012
    Assignee: International Business Machines Corporation
    Inventors: Sugato Bagchi, Lindsay E. Burns, Steven C. Catlett, Ching-Hua Chen-Ritzo
  • Publication number: 20110172801
    Abstract: A first linear combination of a local moving aggregated quantity derived from a WIP distribution and a global aggregated quantity derived from the WIP distribution is calculated for each range for a given product type in a manufacturing line. The first linear combination serves as a first throughput target for the range and product. A second linear combination of a standard deviation of the non-zero portion of the WIP distribution and the global aggregated quantity is calculated for the product type in the manufacturing line. The coefficients of this second linear combination are predetermined. This second linear combination serves as a second throughput target. A throughput target for each range is determined by determining the minimum of the first throughput target, which can be different for each range, and the second throughput target, which is common across all ranges.
    Type: Application
    Filed: January 11, 2010
    Publication date: July 14, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Sugato Bagchi, Lindsay E. Burns, Steven C. Catlett, Ching-Hua Chen-Ritzo
  • Publication number: 20090291510
    Abstract: A method for creating a testing pattern for sampling the sheet resistance of a test wafer for tuning an annealing process includes establishing a center point for the wafer and determining a plurality of sample points having a radial displacement from the center point of the wafer and an angular displacement, the radial displacement of successive sample points decreasing in radial distance from one another as the distance from the center point increases and the angular displacement between each successive sample point being constant.
    Type: Application
    Filed: May 20, 2008
    Publication date: November 26, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Steven C. Catlett, Kevin K. Dezfulian