Patents by Inventor Mohammad Massodi

Mohammad Massodi 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: 6991946
    Abstract: The present inventive principles provide a method and system for performing backside voltage contrast on an SOI device. The SOI semiconductor device includes a bulk silicon, a box insulator residing on the bulk silicon and a silicon region on the box insulator. The SOI semiconductor device further includes a plurality of structures in the silicon region, the plurality of structures includes a conductive structure. The method and system include mechanical dimpling and chemical etching of the substrate to expose the box insulator. Optionally, a second chemical etch to remove at least a portion of the box insulator may be performed. A charged particle beam, such as energetic electrons from an SEM, for example, may be directed at the backside of the device, and emitted secondary electrons observed.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: January 31, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Mehrdad Mahanpour, Mohammad Massodi, Caiwen Yuan