Patents by Inventor Scott Ruby

Scott Ruby 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).

  • Method of avoiding unwanted metal deposition on a semiconductor resistor structure
    Patent number: 7754558
    Abstract: An electrical resistance is produced in a semiconductor device by first providing a semiconductor resistor structure that includes a semiconductor resistor having formed thereon a native oxide layer. A portion of the native oxide layer that overlies a corresponding top surface portion of the semiconductor resistor is removed, in order to expose the top surface portion of the semiconductor resistor. Metal is deposited on the exposed top surface portion of the semiconductor resistor. A chemical reaction is effectuated in order to reduce the likelihood of metal reacting with the underlying silicon on any portion of the semiconductor resistor other than the top surface portion thereof. The chemical reaction can be an oxidation reaction that produces on the semiconductor resistor structure an oxide layer other than the native oxide layer and substantially thicker than the native oxide layer.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: July 13, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Reshmi Mitra, Scott Ruby, Sergai Drizlikh, Thomas Francis, Robert Tracy