Patents by Inventor Ritu Shrivastava

Ritu Shrivastava 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: 11632365
    Abstract: Various methods, apparatuses/systems, and media for automatically establishing a communication between two or more applications that do not share a compatible authentication model are disclosed. A receiver receives a request from a first application to communicate with a second application, wherein the first application supports a first authentication model and the second application supports a second authentication model which is incompatible with the first authentication model. A processor utilizes a configurable gateway layer, in response to receiving the request, to mediate a communication between the first application and the second application; and routes the request from the first application to the configurable gateway layer. The configurable gateway layer translates the first authentication model to the second authentication model.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: April 18, 2023
    Assignee: JPMORGAN CHASE BANK, N.A.
    Inventors: Kumar Rao Krishnagi, Kevin Carrier, Vineshkumar Dharmalingam, Ritu Shrivastava, Ananth Rajasekaran, Najma Aden, Robert B Grant, Matthew J Porter, Nalini S Boda, Mark Alan Wells, Vijay Kumar Perla, Laxman Dongisharapu
  • Publication number: 20220337576
    Abstract: Various methods, apparatuses/systems, and media for automatically establishing a communication between two or more applications that do not share a compatible authentication model are disclosed. A receiver receives a request from a first application to communicate with a second application, wherein the first application supports a first authentication model and the second application supports a second authentication model which is incompatible with the first authentication model. A processor utilizes a configurable gateway layer, in response to receiving the request, to mediate a communication between the first application and the second application; and routes the request from the first application to the configurable gateway layer. The configurable gateway layer translates the first authentication model to the second authentication model.
    Type: Application
    Filed: May 28, 2021
    Publication date: October 20, 2022
    Applicant: JPMorgan Chase Bank, N.A.
    Inventors: Kumar RAO KRISHNAGI, Kevin CARRIER, Vineshkumar DHARMALINGAM, Ritu SHRIVASTAVA, Ananth RAJASEKARAN, Najma ADEN, Robert B GRANT, Matthew J PORTER, Nalini S BODA, Mark Alan WELLS, Vijay Kumar PERLA, Laxman DONGISHARAPU
  • Patent number: 8395926
    Abstract: A memory device in a 3-D read and write memory includes memory cells. Each memory cell includes a resistance-switching memory element (RSME). The RSME has first and second resistance-switching layers on either side of a conductive intermediate layer, and first and second electrodes at either end of the RSME. The layers can be provided in a lateral arrangement, such as an end-to-end, face-to-face, L-shaped or U-shaped arrangement. In a set or reset operation of the memory cell, an electric field is applied across the first and second electrodes. An ionic current flows in the resistance-switching layers, contributing to a switching mechanism. An electron flow, which does not contribute to the switching mechanism, is reduced due to scattering by the conductive intermediate layer, to avoid damage to the steering element.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 12, 2013
    Assignee: SanDisk 3D LLC
    Inventors: Franz Kreupl, Ritu Shrivastava
  • Publication number: 20110310654
    Abstract: A memory device in a 3-D read and write memory includes memory cells. Each memory cell includes a resistance-switching memory element (RSME). The RSME has first and second resistance-switching layers on either side of a conductive intermediate layer, and first and second electrodes at either end of the RSME. The layers can be provided in a lateral arrangement, such as an end-to-end, face-to-face, L-shaped or U-shaped arrangement. In a set or reset operation of the memory cell, an electric field is applied across the first and second electrodes. An ionic current flows in the resistance-switching layers, contributing to a switching mechanism. An electron flow, which does not contribute to the switching mechanism, is reduced due to scattering by the conductive intermediate layer, to avoid damage to the steering element.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 22, 2011
    Inventors: Franz Kreupl, Ritu Shrivastava
  • Patent number: 7799598
    Abstract: Molecular memories, i.e., memories that incorporate molecules for charge storage, are disclosed. Molecular memory cells, molecular memory arrays, and electronic devices including molecular memory are also disclosed, as are processing systems and methods for manufacturing molecular memories. Methods of manufacturing molecular memories that enable semiconductor devices and interconnections to be manufactured monolithically with molecular memory are also disclosed.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: September 21, 2010
    Assignee: ZettaCore, Inc.
    Inventors: Werner G. Kuhr, Ritu Shrivastava, Antonio R. Gallo, Kenneth J. Mobley, Tom DeBolske
  • Patent number: 7642546
    Abstract: According to some embodiments, an article of manufacture comprises a substrate; a molecular layer on the substrate comprising at least one charge storage molecule coupled to the substrate by a molecular linker; a solid barrier dielectric layer directly on the molecular layer; and a conductive layer directly on the solid barrier dielectric layer. In some embodiments, the solid barrier dielectric layer is configured to provide a voltage drop across the molecular layer that is greater than a voltage drop across the solid barrier dielectric layer when a voltage is applied to the conductive layer. In some embodiments, the molecular layer has a thickness greater than that of the solid barrier dielectric layer. The article of manufacture contains no electrolyte between the molecular layer and the conductive layer.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: January 5, 2010
    Assignees: Zettacore, Inc., North Carolina State University
    Inventors: Veena Misra, Ritu Shrivastava, Zhong Chen, Guru Mathur
  • Publication number: 20080219041
    Abstract: Molecular memories, i.e., memories that incorporate molecules for charge storage, are disclosed. Molecular memory cells, molecular memory arrays, and electronic devices including molecular memory are also disclosed, as are processing systems and methods for manufacturing molecular memories. Methods of manufacturing molecular memories that enable semiconductor devices and interconnections to be manufactured monolithically with molecular memory are also disclosed.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 11, 2008
    Inventors: Werner G. Kuhr, Ritu Shrivastava, Antonio R. Gallo, Kenneth J. Mobley, Tom DeBolske
  • Patent number: 7358113
    Abstract: Molecular memories, i.e., memories that incorporate molecules for charge storage, are disclosed. Molecular memory cells, molecular memory arrays, and electronic devices including molecular memory are also disclosed, as are processing systems and methods for manufacturing molecular memories. Methods of manufacturing molecular memories that enable semiconductor devices and interconnections to be manufactured monolithically with molecular memory are also disclosed.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: April 15, 2008
    Assignee: Zettacore, Inc.
    Inventors: Ritu Shrivastava, Antonio R. Gallo, Kenneth J. Mobley, Tom DeBolske
  • Publication number: 20070164374
    Abstract: According to some embodiments, an article of manufacture comprises a substrate; a molecular layer on the substrate comprising at least one charge storage molecule coupled to the substrate by a molecular linker; a solid barrier dielectric layer directly on the molecular layer; and a conductive layer directly on the solid barrier dielectric layer. In some embodiments, the solid barrier dielectric layer is configured to provide a voltage drop across the molecular layer that is greater than a voltage drop across the solid barrier dielectric layer when a voltage is applied to the conductive layer. In some embodiments, the molecular layer has a thickness greater than that of the solid barrier dielectric layer. The article of manufacture contains no electrolyte between the molecular layer and the conductive layer.
    Type: Application
    Filed: November 30, 2006
    Publication date: July 19, 2007
    Inventors: Veena Misra, Ritu Shrivastava, Zhong Chen, Guru Mathur
  • Publication number: 20050270822
    Abstract: Molecular memories, i.e., memories that incorporate molecules for charge storage, are disclosed. Molecular memory cells, molecular memory arrays, and electronic devices including molecular memory are also disclosed, as are processing systems and methods for manufacturing molecular memories. Methods of manufacturing molecular memories that enable semiconductor devices and interconnections to be manufactured monolithically with molecular memory are also disclosed.
    Type: Application
    Filed: April 29, 2005
    Publication date: December 8, 2005
    Inventors: Ritu Shrivastava, Antonio Gallo, Kenneth Mobley, Tom DeBolske
  • Patent number: 6921688
    Abstract: A system for and a method of integrating SRAM cells and flash EPROM cells onto a single silicon substrate includes an area on the silicon substrate where a local oxidation of silicon (LOCOS) isolation technique is implemented and another area on the same silicon substrate where a shallow trench isolation (STI) technique is implemented. Further, this system and method also include flash EPROM cells implemented within the area of the substrate utilizing the LOCOS isolation technique and SRAM cells implemented within the area of the substrate utilizing the STI technique. Preferably, the LOCOS isolation technique is first implemented to define a flash area of the silicon substrate on which the flash EPROM cell is implemented. Before the LOCOS isolation technique is implemented, an SRAM area is masked.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: July 26, 2005
    Assignee: Alliance Semiconductor
    Inventor: Ritu Shrivastava
  • Patent number: 6903434
    Abstract: A system for and a method of integrating SRAM cells and flash EPROM cells onto a single silicon substrate includes an area on the silicon substrate where a local oxidation of silicon (LOCOS) isolation technique is implemented and another area on the same silicon substrate where a shallow trench isolation (STI) technique is implemented. Further, this system and method also include flash EPROM cells implemented within the area of the substrate utilizing the LOCOS isolation technique and SRAM cells implemented within the area of the substrate utilizing the STI technique. Preferably, the LOCOS isolation technique is first implemented to define a flash area of the silicon substrate on which the flash EPROM cell is implemented. Before the LOCOS isolation technique is implemented, an SRAM area is masked.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: June 7, 2005
    Assignee: Alliance Semiconductors
    Inventor: Ritu Shrivastava
  • Publication number: 20030151111
    Abstract: A system for and a method of integrating SRAM cells and flash EPROM cells onto a single silicon substrate includes an area on the silicon substrate where a local oxidation of silicon (LOCOS) isolation technique is implemented and another area on the same silicon substrate where a shallow trench isolation (STI) technique is implemented. Further, this system and method also include flash EPROM cells implemented within the area of the substrate utilizing the LOCOS isolation technique and SRAM cells implemented within the area of the substrate utilizing the STI technique. Preferably, the LOCOS isolation technique is first implemented to define a flash area of the silicon substrate on which the flash EPROM cell is implemented. Before the LOCOS isolation technique is implemented, an SRAM area is masked.
    Type: Application
    Filed: March 7, 2003
    Publication date: August 14, 2003
    Inventor: Ritu Shrivastava
  • Patent number: 6589834
    Abstract: The dynamic random access memory (DRAM) cells in a semiconductor chip are isolated from the peripheral circuitry by forming the DRAM cells directly in the substrate while the peripheral and other functional circuits are formed in wells that are isolated from the substrate. In addition to providing isolation, the placement of the DRAM cells also reduces the leakage current in the cells, thereby increasing the time that a DRAM cell can hold a charge without being refreshed.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: July 8, 2003
    Assignee: Alliance Semiconductor Corporation
    Inventors: Chitranjan N. Reddy, Ritu Shrivastava
  • Patent number: 6472267
    Abstract: A DRAM cell (10) having a capacitor-over-bit line (COB) structure self-aligned to the word lines and bit lines is disclosed. Word lines (24) and bit lines (28) are formed with insulating structures that include insulating sidewalls. The word line insulating structure includes an etch barrier layer (46) that extends over a source region (18). A first interlayer dielectric (ILD) (48) insulates the word lines (24) from the bit lines (28) and a second ILD (60) insulates the bit lines from a cell capacitor. A capacitor contact hole (34), self-aligned with the bit lines and the word lines, is formed by etching through the first and second ILDs (48 and 60) to expose the etch barrier layer (46) over the source region (18). Portions of the bit line and word line exposed by the etch are protected by their respective insulating structures.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: October 29, 2002
    Assignee: Alliance Semiconductor Corporation
    Inventors: Ritu Shrivastava, Chitranjan N. Reddy
  • Patent number: 6429076
    Abstract: A flash EPROM cell (10) is disclosed having increased capacitive coupling between a floating gate (28) and a control gate (32). Vertical structural elements (34a and 34b) are formed on field oxide regions (20) on opposing sides of the flash EPROM cell channel 20, in the channel width direction. The structural elements (34a and 34b) include relatively vertical faces. The floating gate (28) conformally cover the channel 20 and the vertical faces of the structural elements (34a and 34b). The control gate (32) conformally covers the floating gate (28). The vertical displacement introduced by the structural elements (34a and 34b) increases the overlap area between the floating gate (28) and the control gate (32) without increasing the overlap area of the floating gate (28) and the channel 20, resulting in increased capacitive coupling between the control gate (32) and the floating gate (28).
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: August 6, 2002
    Assignee: Alliance Semiconductor Corporation
    Inventors: Perumal Ratnam, Ritu Shrivastava
  • Publication number: 20020089029
    Abstract: A system for and a method of integrating SRAM cells and flash EPROM cells onto a single silicon substrate includes an area on the silicon substrate where a local oxidation of silicon (LOCOS) isolation technique is implemented and another area on the same silicon substrate where a shallow trench isolation (STI) technique is implemented. Further, this system and method also include flash EPROM cells implemented within the area of the substrate utilizing the LOCOS isolation technique and SRAM cells implemented within the area of the substrate utilizing the STI technique. Preferably, the LOCOS isolation technique is first implemented to define a flash area of the silicon substrate on which the flash EPROM cell is implemented. Before the LOCOS isolation technique is implemented, an SRAM area is masked.
    Type: Application
    Filed: May 20, 1999
    Publication date: July 11, 2002
    Inventor: RITU SHRIVASTAVA
  • Publication number: 20020081802
    Abstract: A DRAM device (200) is disclosed having a plurality of memory cells (208) formed on a substrate (202). Each memory cell (208) includes a transistor (210) having a gate (212), and a storage capacitor (214) having a bottom plate (226) covered with a capacitor dielectric (234). A relatively thin top plate (236) is formed over a number of memory cells (208) in a array portion (204) of the DRAM device (200). The top plate (236) extends to a peripheral array portion (206) where contact is made thereto by metallization (248), by way of a plate contact hole (244). An etch stop (240), formed from the same layer as the gate (212) in the preferred embodiment, is disposed in the peripheral array portion (206) below the plate contact hole (244). The etch stop (240) provides greater flexibility in the plate contact hole etching step, by preventing the plate contact hole (244) from extending through the top plate (236) and to the substrate (202).
    Type: Application
    Filed: November 7, 2001
    Publication date: June 27, 2002
    Inventors: Ritu Shrivastava, Chitranjan N. Reddy
  • Patent number: 6392267
    Abstract: A flash EPROM array (100) and method of manufacture is disclosed. Source regions (118a-118f) are shared between the memory cells (108a,l-108d,n) of row (104a-104d) pairs, and are isolated from one another in the row direction by isolation regions 120. Low resistance source conductor members (122a-122b) extend in the row direction and are formed over the source regions (118a-118f) and make contact therewith in a self-aligned fashion. The architecture allows for source decoding and thus enables user programmable sector erase architecture.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: May 21, 2002
    Assignee: Alliance Semiconductor Corporation
    Inventors: Ritu Shrivastava, Chitranjan N. Reddy
  • Publication number: 20020053692
    Abstract: A DRAM cell (10) having a capacitor-over-bit line (COB) structure self-aligned to the word lines and bit lines is disclosed. Word lines (24) and bit lines (28) are formed with insulating structures that include insulating sidewalls. The word line insulating structure includes an etch barrier layer (46) that extends over a source region (18). A first interlayer dielectric (ILD) (48) insulates the word lines (24) from the bit lines (28) and a second ILD (60) insulates the bit lines from a cell capacitor. A capacitor contact hole (34), self-aligned with the bit lines and the word lines, is formed by etching through the first and second ILDs (48 and 60) to expose the etch barrier layer (46) over the source region (18). Portions of the bit line and word line exposed by the etch are protected by their respective insulating structures.
    Type: Application
    Filed: December 3, 2001
    Publication date: May 9, 2002
    Applicant: Alliance Semiconductor Corporation
    Inventors: Ritu Shrivastava, Chitranjan N. Reddy