Patents by Inventor David Roger Timberlake

David Roger Timberlake 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: 11749500
    Abstract: A system and method for controlling an amount of outgassing caused by implanting ions into a photoresist disposed on a workpiece. The amount of outgassing is based on the species being implanted, the type of photoresist, the energy of the implant, and the amount of dose that has already been implanted, among other effects. By controlling the effective beam current, the amount of outgassing may be maintained below a predetermined threshold. By developing and utilizing the relationship between effective beam current, dose completed and rate of outgassing, the effective beam current may be controlled more precisely to implant the workpiece in the most efficient manner while remaining below the predetermined outgassing threshold.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: September 5, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Nevin Clay, David Roger Timberlake, Christopher W. Campbell
  • Publication number: 20230238214
    Abstract: A system and method for controlling an amount of outgassing caused by implanting ions into a photoresist disposed on a workpiece. The amount of outgassing is based on the species being implanted, the type of photoresist, the energy of the implant, and the amount of dose that has already been implanted, among other effects. By controlling the effective beam current, the amount of outgassing may be maintained below a predetermined threshold. By developing and utilizing the relationship between effective beam current, dose completed and rate of outgassing, the effective beam current may be controlled more precisely to implant the workpiece in the most efficient manner while remaining below the predetermined outgassing threshold.
    Type: Application
    Filed: January 24, 2022
    Publication date: July 27, 2023
    Inventors: Nevin Clay, David Roger Timberlake, Christopher R. Campbell
  • Patent number: 9006692
    Abstract: A system to control an ion beam in an ion implanter includes a detector to perform a plurality of beam current measurements of the ion beam along a first direction perpendicular to a direction of propagation of the ion beam. The system also includes an analysis component to determine a beam current profile based upon the plurality of beam current measurements, the beam current profile comprising a variation of beam current along the first direction; and an adjustment component to adjust a height of the ion beam along the first direction when the beam current profile indicates the beam height is below a threshold.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: April 14, 2015
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Stanislav S. Todorov, George M. Gammel, Richard Allen Sprenkle, Norman E. Hussey, Frank Sinclair, Shengwu Chang, Joseph C. Olson, David Roger Timberlake, Kurt T. Decker-Lucke
  • Publication number: 20140326179
    Abstract: A system to control an ion beam in an ion implanter includes a detector to perform a plurality of beam current measurements of the ion beam along a first direction perpendicular to a direction of propagation of the ion beam. The system also includes an analysis component to determine a beam current profile based upon the plurality of beam current measurements, the beam current profile comprising a variation of beam current along the first direction; and an adjustment component to adjust a height of the ion beam along the first direction when the beam current profile indicates the beam height is below a threshold.
    Type: Application
    Filed: September 25, 2013
    Publication date: November 6, 2014
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Stanislav S. Todorov, George M. Gammel, Richard Allen Sprenkle, Norman E. Hussey, Frank Sinclair, Shengwu Chang, Joseph C. Olson, David Roger Timberlake, Kurt T. Decker-Lucke
  • Patent number: 8853653
    Abstract: A system to control an ion beam in an ion implanter includes a detector system to detect a plurality of beam current measurements of the ion beam at a first frequency and an analysis component to determine a variation of the ion beam based upon the plurality of beam current measurements, the variation corresponding to a beam current variation of the ion beam at a second frequency different from the first frequency. The system also includes an adjustment component to adjust the ion beam in response to an output of the analysis component to reduce the variation, wherein the analysis component and the adjustment component are configured to dynamically reduce the variation of the ion beam below a threshold value while the ion beam is generated in the ion implanter.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: October 7, 2014
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Stanislav S. Todorov, George M. Gammel, Richard Allen Sprenkle, Norman E. Hussey, Frank Sinclair, Shengwu Chang, Joseph C. Olson, David Roger Timberlake, Kurt T. Decker-Lucke