Patents by Inventor Yun Fook Thomas Liew

Yun Fook Thomas Liew 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).

  • Diode and memory device having a diode
    Patent number: 8599607
    Abstract: A diode and a memory device having a diode are provided. The diode includes a semiconductor layer and phase change material layer. The semiconductor layer and the phase change material layer have different energy bandgaps and different carrier concentrations such that an isotype heterojunction is formed at a boundary interface between the semiconductor layer and the phase change material layer.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: December 3, 2013
    Assignee: Agency for Science, Technology and Research
    Inventors: Wendong Song, Luping Shi, Yun Fook Thomas Liew, Tow Chong Chong
  • Diode and Memory Device Having a Diode
    Publication number: 20120147668
    Abstract: A diode and a memory device having a diode are provided. The diode includes a semiconductor layer and phase change material layer. The semiconductor layer and the phase change material layer have different energy bandgaps and different carrier concentrations such that an isotype heterojunction is formed at a boundary interface between the semiconductor layer and the phase change material layer.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 14, 2012
    Inventors: Wendong SONG, Luping Shi, Yun Fook Thomas Liew, Tow Chong Chong