Patents by Inventor Guy Charles Wicker

Guy Charles Wicker 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: 10147876
    Abstract: Systems and methods for providing a phase change memory that includes a phase change material, such as a chalcogenide material, in series with a heating element that comprises multiple thermal interfaces are described. The multiple thermal interfaces may cause the heating element to have a reduced bulk thermal conductivity or a lower heat transfer rate across the heating element without a corresponding reduction in electrical conductivity. The phase change material may comprise a germanium-antimony-tellurium compound or a chalcogenide glass. The heating element may include a plurality of conducting layers with different thermal conductivities. In some cases, the heating element may include two or more conducting layers in which the conducting layers comprise the same electrically conductive material or compound but are deposited or formed using different temperatures, carrier gas pressures, flow rates, and/or film thicknesses to create thermal interfaces between the two or more conducting layers.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: December 4, 2018
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Lidu Huang, Mac D. Apodaca, Toshiki Hirano, Ailian Zhao, Guy Charles Wicker, Federico Nardi