Patents by Inventor Ronald W. Mauthe

Ronald W. Mauthe 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).

  • Electrode for phase change memory device and method
    Patent number: 7456420
    Abstract: An electrode for a memory material of a phase change memory device is disclosed. The electrode includes a first layer adhered to the memory material, the first layer including a nitride (ANx), where A is one of titanium (Ti) and tungsten (W) and x greater than zero, but is less than 1.0, and a second layer adhered to the first layer, the second layer including a nitride (ANy), where y is greater than or equal to 1.0. The multiple layer electrode allows the first layer to better adhere to chalcogenide based memory material, such as GST, than for example, stoichiometric TiN or WN, which prevents delamination. A phase change memory device and method are also disclosed.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: November 25, 2008
    Assignee: International Business Machines Corporation
    Inventors: Donna R. Cote, Ronald W. Mauthe, Keith Kwong Hon Wong