Patents by Inventor Vijay Kris Narasimhan

Vijay Kris Narasimhan 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).

  • Publication number: 20230089523
    Abstract: The disclosed and claimed subject matter relates to crystalline ferroelectric materials that include a mixture of hafnium oxide and zirconium oxide having a substantial (i.e., approximately 40% or more) or majority portion of the material in a ferroelectric phase as deposited (i.e., without the need for further processing, such as a subsequent capping or annealing) and methods for preparing and depositing these materials.
    Type: Application
    Filed: June 15, 2021
    Publication date: March 23, 2023
    Inventors: Vijay Kris NARASIMHAN, Jean-Sébastien LEHN, Karl LITTAU, Jacob WOODRUFF, Ravindra KANJOLIA
  • Patent number: 10833263
    Abstract: Provided are novel compositions of current compliance layers (CCLs) as well as novel methods of fabricating such CCLs and novel architectures of arranging CCLs and memory cells in memory arrays. A CCL may comprise one of sulfur (S), selenium (Se), and tellurium (Te). The CCL may further comprise one of germanium (Ge) and silicon (Si). CCLs may be fabricated as amorphous structure and remain amorphous when heated to 400° C. or 450° C. and above. In some embodiments, CCLs have crystallization temperatures of greater than 400° C. and, in some embodiments, glass transition temperatures of greater than 400° C. CCLs may be fabricated using atomic layer deposition (ALD) as a nanolaminate of layers having different compositions. The composition, number, and arrangement of the layers in the nanolaminate is specifically selected to yield a desired composition of CCL.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: November 10, 2020
    Assignee: INTERMOLECULAR, INC.
    Inventors: Tony Chiang, Sergey V. Barabash, Karl Littau, Vijay Kris Narasimhan, Stephen Weeks
  • Publication number: 20200152867
    Abstract: Provided are novel compositions of current compliance layers (CCLs) as well as novel methods of fabricating such CCLs and novel architectures of arranging CCLs and memory cells in memory arrays. A CCL may comprise one of sulfur (S), selenium (Se), and tellurium (Te). The CCL may further comprise one of germanium (Ge) and silicon (Si). CCLs may be fabricated as amorphous structure and remain amorphous when heated to 400° C. or 450° C. and above. In some embodiments, CCLs have crystallization temperatures of greater than 400° C. and, in some embodiments, glass transition temperatures of greater than 400° C. CCLs may be fabricated using atomic layer deposition (ALD) as a nanolaminate of layers having different compositions. The composition, number, and arrangement of the layers in the nanolaminate is specifically selected to yield a desired composition of CCL.
    Type: Application
    Filed: January 7, 2020
    Publication date: May 14, 2020
    Inventors: Tony CHIANG, Sergey V. BARABASH, Karl LITTAU, Vijay Kris NARASIMHAN, Stephen WEEKS
  • Patent number: 10580978
    Abstract: Provided are novel compositions of current compliance layers (CCLs) as well as novel methods of fabricating such CCLs and novel architectures of arranging CCLs and memory cells in memory arrays. A CCL may comprise one of sulfur (S), selenium (Se), and tellurium (Te). The CCL may further comprise one of germanium (Ge) and silicon (Si). CCLs may be fabricated as amorphous structure and remain amorphous when heated to 400° C. or 450° C. and above. In some embodiments, CCLs have crystallization temperatures of greater than 400° C. and, in some embodiments, glass transition temperatures of greater than 400° C. CCLs may be fabricated using atomic layer deposition (ALD) as a nanolaminate of layers having different compositions. The composition, number, and arrangement of the layers in the nanolaminate is specifically selected to yield a desired composition of CCL.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: March 3, 2020
    Assignee: Intermolecular, Inc.
    Inventors: Tony Chiang, Sergey V Barabash, Karl Littau, Vijay Kris Narasimhan, Stephen Weeks
  • Publication number: 20180198064
    Abstract: Provided are novel compositions of current compliance layers (CCLs) as well as novel methods of fabricating such CCLs and novel architectures of arranging CCLs and memory cells in memory arrays. A CCL may comprise one of sulfur (S), selenium (Se), and tellurium (Te). The CCL may further comprise one of germanium (Ge) and silicon (Si). CCLs may be fabricated as amorphous structure and remain amorphous when heated to 400° C. or 450° C. and above. In some embodiments, CCLs have crystallization temperatures of greater than 400° C. and, in some embodiments, glass transition temperatures of greater than 400° C. CCLs may be fabricated using atomic layer deposition (ALD) as a nanolaminate of layers having different compositions. The composition, number, and arrangement of the layers in the nanolaminate is specifically selected to yield a desired composition of CCL.
    Type: Application
    Filed: January 5, 2018
    Publication date: July 12, 2018
    Applicant: Intermolecular, Inc.
    Inventors: Tony Chiang, Sergey V Barabash, Karl Littau, Vijay Kris Narasimhan, Stephen Weeks
  • Patent number: 8339328
    Abstract: A multi-band antenna is provided. The antenna includes a radiating element resonant for at least two resonant frequencies, and at least two matching elements that are electrically connectable to the radiating element to substantially match an input impedance of the antenna to a reference impedance for each one of the at least two resonant frequencies. A method for transmitting and receiving on one or more frequency bands is also provided that includes selecting at least one resonant frequency, selectively electrically connecting a matching element corresponding to the at least one selected resonant frequency to a radiating element resonant at the one or more frequency bands, and receiving or transmitting a wireless signal at the at least one selected resonant frequency with the radiating element.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: December 25, 2012
    Inventors: Vijay Kris Narasimhan, Colan Graeme Ryan
  • Publication number: 20100033397
    Abstract: A multi-band antenna is provided. The antenna includes a radiating element resonant for at least two resonant frequencies, and at least two matching elements that are electrically connectable to the radiating element to substantially match an input impedance of the antenna to a reference impedance for each one of the at least two resonant frequencies. A method for transmitting and receiving on one or more frequency bands is also provided that includes selecting at least one resonant frequency, selectively electrically connecting a matching element corresponding to the at least one selected resonant frequency to a radiating element resonant at the one or more frequency bands, and receiving or transmitting a wireless signal at the at least one selected resonant frequency with the radiating element.
    Type: Application
    Filed: October 10, 2007
    Publication date: February 11, 2010
    Inventors: Vijay Kris Narasimhan, Colan Graeme Ryan