Patents by Inventor David Fatke

David Fatke 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: 7297287
    Abstract: An apparatus and method for detection of a feature etch completion within an etching reactor. The method includes determining a correlation matrix by recording first measured data regarding a first etch process over successive time intervals to form a first recorded data matrix, assembling a first endpoint signal matrix using target endpoint data for a specific etch process, performing a partial least squares analysis on the recorded data matrix and the first endpoint signal matrix to refine the recorded data matrix, and computing a correlation matrix based upon the refined recorded data matrix and the first endpoint signal matrix. The method further includes performing a second etch process to form a second recorded data matrix. The correlation matrix and the second recorded data matrix are analyzed to determine whether an endpoint of the second etch process has been achieved.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: November 20, 2007
    Assignee: Tokyo Electron Limited
    Inventors: David Fatke, Hongyu Yue
  • Patent number: 7213478
    Abstract: A method of automatically configuring an Advanced Process Control (APC) system for a semiconductor manufacturing environment in which an auto-configuration script is generated for executing an auto-configuration program. The auto-configuration script activates default values for input to the auto-configuration program. The auto-configuration script is executed to generate an enabled parameter file output from the auto-configuration program. The enabled parameter file identifies parameters for statistical process control (SPC) chart generation.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: May 8, 2007
    Assignee: Tokyo Electron Limited
    Inventors: Satoshi Harada, Edward C. Hume, III, James E Willis, Kevin Andrew Chamness, Hieu A Lam, Hongyu Yue, David Fatke
  • Publication number: 20050016947
    Abstract: An apparatus and method for detection of a feature etch completion within an etching reactor. The method includes determining a correlation matrix by recording first measured data regarding a first etch process over successive time intervals to form a first recorded data matrix, assembling a first endpoint signal matrix using target endpoint data for a specific etch process, performing a partial least squares analysis on the recorded data matrix and the first endpoint signal matrix to refine the recorded data matrix, and computing a correlation matrix based upon the refined recorded data matrix and the first endpoint signal matrix. The method further includes performing a second etch process to form a second recorded data matrix. The correlation matrix and the second recorded data matrix are analyzed to determine whether an endpoint of the second etch process has been achieved.
    Type: Application
    Filed: March 25, 2002
    Publication date: January 27, 2005
    Inventors: David Fatke, Hongyu Yue
  • Publication number: 20050015176
    Abstract: A method of automatically configuring an Advanced Process Control (APC) system for a semiconductor manufacturing environment in which an auto-configuration script is generated for executing an auto-configuration program. The auto-configuration script activates default values for input to the auto-configuration program. The auto-configuration script is executed to generate an enabled parameter file output from the auto-configuration program. The enabled parameter file identifies parameters for statistical process control (SPC) chart generation.
    Type: Application
    Filed: February 12, 2004
    Publication date: January 20, 2005
    Applicant: Tokyo Electron Limited
    Inventors: Satoshi Harada, Edward Hume, James Willis, Kevin Chamness, Hieu Lam, Hongyu Yue, David Fatke