Patents by Inventor Renhua Zhang

Renhua Zhang 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: 10020317
    Abstract: A 3-D/vertical non-volatile (NV) memory device such as 3-D NAND flash memory and fabrication method thereof, the NV memory device includes vertical openings disposed in a stack of alternating stack layers of first stack layers and second stack layers over a wafer, a multi-layer dielectric disposed over an inner sidewall of each opening, a first channel layer disposed over the multi-layer dielectric, and a second channel layer disposed over the first channel layer, in which at least one of the first or second channel layers includes polycrystalline germanium or silicon-germanium.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: July 10, 2018
    Assignee: Cypress Semiconductor Corporation
    Inventors: Renhua Zhang, Lei Xue, Rinji Sugino, Krishnaswamy Ramkumar
  • Publication number: 20170263623
    Abstract: A 3-D/vertical non-volatile (NV) memory device such as 3-D NAND flash memory and fabrication method thereof, the NV memory device includes vertical openings disposed in a stack of alternating stack layers of first stack layers and second stack layers over a wafer, a multi-layer dielectric disposed over an inner sidewall of each opening, a first channel layer disposed over the multi-layer dielectric, and a second channel layer disposed over the first channel layer, in which at least one of the first or second channel layers includes polycrystalline germanium or silicon-germanium.
    Type: Application
    Filed: March 23, 2016
    Publication date: September 14, 2017
    Inventors: Renhua Zhang, Lei Xue, Rinji Sugino, Krishnaswamy Ramkumar
  • Patent number: 9166071
    Abstract: A polarization resistant solar cell using an oxygen-rich interface layer is provided. The oxygen-rich interface layer may be comprised of SiOxNy, which may have a graded profile that varies between oxygen-rich proximate to the solar cell to nitrogen-rich distal to the solar cell. A silicon oxide passivation layer may be interposed between the solar cell and the SiOxNy graded dielectric layer. The graded SiOxNy dielectric layer may be replaced with a non-graded SiOxNy dielectric layer and a SiN AR coating.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: October 20, 2015
    Assignee: Silicor Materials Inc.
    Inventors: Bill Phan, Renhua Zhang, John Gorman, Omar Sidelkheir, Jean Patrice Rakotoniaina, Alain Paul Blosse, Martin Kaes
  • Publication number: 20110094575
    Abstract: A polarization resistant solar cell using an oxygen-rich interface layer is provided. The oxygen-rich interface layer may be comprised of SiOxNy, which may have a graded profile that varies between oxygen-rich proximate to the solar cell to nitrogen-rich distal to the solar cell. A silicon oxide passivation layer may be interposed between the solar cell and the SiOxNy graded dielectric layer. The graded SiOxNy dielectric layer may be replaced with a non-graded SiOxNy dielectric layer and a SiN AR coating.
    Type: Application
    Filed: December 24, 2009
    Publication date: April 28, 2011
    Applicant: Calisolar Inc.
    Inventors: Bill Phan, Renhua Zhang, John Gorman, Omar Sidelkheir, Jean Patrice Rakotoniaina, Alain Paul Blosse, Martin Kaes
  • Publication number: 20110094574
    Abstract: A polarization resistant solar cell is provided. The solar cell uses a dual layer dielectric stack disposed on the front surface of the cell. The dielectric stack consists of a passivation layer disposed directly on the front cell surface and comprised of either SiOx or SiON, and an outer AR coating comprised of SiCN.
    Type: Application
    Filed: December 24, 2009
    Publication date: April 28, 2011
    Applicant: Calisolar Inc.
    Inventors: Renhua Zhang, Bill Phan, John Gorman, Alain Paul Blosse, Martin Kaes