Patents by Inventor Andy Fu

Andy Fu 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: 8467224
    Abstract: In some aspects, a microelectronic structure is provided that includes (1) a first conducting layer; (2) a first dielectric layer formed above the first conducting layer and having a feature that exposes a portion of the first conducting layer; (3) a graphitic carbon film disposed on a sidewall of the feature defined by the first dielectric layer and in contact with the first conducting layer at a bottom of the feature; and (4) a second conducting layer disposed above and in contact with the graphitic carbon film. Numerous other aspects are provided.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: June 18, 2013
    Assignee: SanDisk 3D LLC
    Inventors: April D. Schricker, Mark H. Clark, Andy Fu, Huiwen Xu
  • Patent number: 8445385
    Abstract: Memory cells, and methods of forming such memory cells are provided that include a steering element coupled to a carbon-based reversible resistivity-switching material. In particular embodiments, methods in accordance with this invention etch a carbon nano-tube (“CNT”) film formed over a substrate, the methods including coating the substrate with a masking layer, patterning the masking layer, and etching the CNT film through the patterned masking layer using a non-oxygen based chemistry. Other aspects are also described.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: May 21, 2013
    Assignee: SanDisk 3D LLC
    Inventors: April D. Schricker, Andy Fu, Michael Konevecki, Steven Maxwell
  • Patent number: 7935594
    Abstract: Forming a metal-insulator diode and carbon memory element in a single damascene process is disclosed. A trench having a bottom and a sidewall is formed in an insulator. A first diode electrode is formed in the trench during a single damascene process. A first insulating region comprising a first insulating material is formed in the trench during the single damascene process. A second insulating region comprising a second insulating material is formed in the trench during the single damascene process. A second diode electrode is formed in the trench during the single damascene process. The first insulating region and the second insulating region reside between the first diode electrode and the second diode electrode to form a metal-insulator-insulator-metal (MIIM) diode. A region of carbon is formed in the trench during the single damascene process. At least a portion of the carbon is electrically in series with the MIIM diode.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: May 3, 2011
    Assignee: SanDisk 3D LLC
    Inventors: April Dawn Schricker, Deepak C. Sekar, Andy Fu, Mark Clark
  • Publication number: 20100081268
    Abstract: Forming a metal-insulator diode and carbon memory element in a single damascene process is disclosed. A trench having a bottom and a sidewall is formed in an insulator. A first diode electrode is formed in the trench during a single damascene process. A first insulating region comprising a first insulating material is formed in the trench during the single damascene process. A second insulating region comprising a second insulating material is formed in the trench during the single damascene process. A second diode electrode is formed in the trench during the single damascene process. The first insulating region and the second insulating region reside between the first diode electrode and the second diode electrode to form a metal-insulator-insulator-metal (MIIM) diode. A region of carbon is formed in the trench during the single damascene process. At least a portion of the carbon is electrically in series with the MIIM diode.
    Type: Application
    Filed: September 24, 2009
    Publication date: April 1, 2010
    Inventors: April Dawn Schricker, Deepak C. Sekar, Andy Fu, Mark Clark
  • Publication number: 20100012914
    Abstract: Methods of forming memory devices, and memory devices formed in accordance with such methods, are provided, the methods including forming a via above a first conductive layer, forming a nonconformal carbon-based resistivity-switchable material layer in the via and coupled to the first conductive layer; and forming a second conductive layer in the via, above and coupled to the nonconformal carbon-based resistivity-switchable material layer. Numerous other aspects are provided.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 21, 2010
    Applicant: SanDisk 3D LLC
    Inventors: Huiwen Xu, Er-Xuan Ping, Andy Fu
  • Publication number: 20090278112
    Abstract: Memory cells, and methods of forming such memory cells are provided that include a steering element coupled to a carbon-based reversible resistivity-switching material. In particular embodiments, methods in accordance with this invention etch a carbon nano-tube (“CNT”) film formed over a substrate, the methods including coating the substrate with a masking layer, patterning the masking layer, and etching the CNT film through the patterned masking layer using a non-oxygen based chemistry. Other aspects are also described.
    Type: Application
    Filed: April 10, 2009
    Publication date: November 12, 2009
    Applicant: SANDISK 3D LLC
    Inventors: April D. Schricker, Andy Fu, Michael Konevecki, Steven Maxwell
  • Patent number: 7615439
    Abstract: Forming a metal-insulator diode and carbon memory element in a single damascene process is disclosed. A trench having a bottom and a sidewall is formed in an insulator. A first diode electrode is formed in the trench during a single damascene process. A first insulating region comprising a first insulating material is formed in the trench during the single damascene process. A second insulating region comprising a second insulating material is formed in the trench during the single damascene process. A second diode electrode is formed in the trench during the single damascene process. The first insulating region and the second insulating region reside between the first diode electrode and the second diode electrode to form a metal-insulator-insulator-metal (MIIM) diode. A region of carbon is formed in the trench during the single damascene process. At least a portion of the carbon is electrically in series with the MIIM diode.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: November 10, 2009
    Assignee: SanDisk Corporation
    Inventors: April Dawn Schricker, Deepak C. Sekar, Andy Fu, Mark Clark
  • Publication number: 20090257270
    Abstract: In some aspects, a microelectronic structure is provided that includes (1) a first conducting layer; (2) a first dielectric layer formed above the first conducting layer and having a feature that exposes a portion of the first conducting layer; (3) a graphitic carbon film disposed on a sidewall of the feature defined by the first dielectric layer and in contact with the first conducting layer at a bottom of the feature; and (4) a second conducting layer disposed above and in contact with the graphitic carbon film. Numerous other aspects are provided.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 15, 2009
    Applicant: SANDISK 3D LLC
    Inventors: April D. Schricker, Mark H. Clark, Andy Fu, Huiwen Xu