Patents by Inventor Ketan J. Shah

Ketan J. Shah 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: 7400154
    Abstract: A system, apparatus, and method for analyzing photon emission data to discriminate between photons emitted by transistors and photons emitted by background sources. The analysis involves spatial and/or temporal correlation of photon emissions. After correlation, the analysis may further involve obtaining a likelihood that the correlated photons were emitted by a transistor. After correlation, the analysis may also further involve assigning a weight to individual photon emissions as a function of the correlation. The weight, in some instances, reflecting a likelihood that the photons were emitted by a transistor. The analysis may further involve automatically identifying transistors in a photon emission image.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: July 15, 2008
    Assignee: Credence Systems Corporation
    Inventors: Romain Desplats, Philippe Perdu, Ketan J. Shah, Theodore R. Lundquist
  • Patent number: 6943572
    Abstract: A system, apparatus, and method for analyzing photon emission data to discriminate between photons emitted by transistors and photons emitted by background sources. The analysis involves processing of integrated circuit computer aided design data to identify transistors within the CAD data. The analysis may further involve the use of Boolean operators to process the CAD data to particularly identify, such as through a channel, the location of the NMOS and PMOS gates, the location of the drain and source, or some combination of the location of the gate and drain or source to particularly identify the pinch-off region.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: September 13, 2005
    Assignee: Credence Systems Corporation
    Inventors: Romain Desplats, Philippe Perdu, Ketan J. Shah, Theodore R. Lundquist
  • Publication number: 20040189335
    Abstract: A system, apparatus, and method for analyzing photon emission data to discriminate between photons emitted by transistors and photons emitted by background sources. The analysis involves processing of integrated circuit computer aided design data to identify transistors within the CAD data. The analysis may further involve the use of Boolean operators to process the CAD data to particularly identify, such as through a channel, the location of the NMOS and PMOS gates, the location of the drain and source, or some combination of the location of the gate and drain or source to particularly identify the pinch-off region.
    Type: Application
    Filed: December 5, 2003
    Publication date: September 30, 2004
    Inventors: Romain Desplats, Philippe Perdu, Ketan J. Shah, Theodore R. Lundquist