Patents by Inventor Srinath Krishnan

Srinath Krishnan 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: 10496291
    Abstract: Various embodiments of systems and methods for maintaining data integrity during data migration are described herein. The systems and methods describe a data migration application that may be installed and executed on a computer device. The data migration application may be connected with multiple data systems via computer network. An authorized user may access the data migration application to migrate data between data systems such as from data source systems to destination systems. In case there is loss of data due to data system interruption, e.g. if a server is abruptly stopped, or software upgrade occurs, the data migration application may create backup data of the failed data migration. The data migration application may reinitiate the data migration to restore the data into the destination system.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: December 3, 2019
    Assignee: SAP SE
    Inventors: Narasimhan Badrinarayanan, Srinath Krishnan, Kannan Andireddi
  • Publication number: 20170177649
    Abstract: Various embodiments of systems and methods for maintaining data integrity during data migration are described herein. The systems and methods describe a data migration application that may be installed and executed on a computer device. The data migration application may be connected with multiple data systems via computer network. An authorized user may access the data migration application to migrate data between data systems such as from data source systems to destination systems. In case there is loss of data due to data system interruption, e.g. if a server is abruptly stopped, or software upgrade occurs, the data migration application may create backup data of the failed data migration. The data migration application may reinitiate the data migration to restore the data into the destination system.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Narasimhan Badrinarayanan, Srinath Krishnan, Kannan Andireddi
  • Patent number: 8949083
    Abstract: A method for modeling a transistor includes providing a transistor model having at least a source node, a drain node, and a gate node, simulating operation of a device using the transistor model in a computing apparatus, and generating an offset voltage at the gate node depending on a magnitude of a current passing through the device.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: February 3, 2015
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Jia Feng, Zhi-Yuan Wu, Juhi Bansal, Srinath Krishnan
  • Publication number: 20130030774
    Abstract: A method for modeling a transistor includes providing a transistor model having at least a source node, a drain node, and a gate node, simulating operation of a device using the transistor model in a computing apparatus, and generating an offset voltage at the gate node depending on a magnitude of a current passing through the device.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Jia Feng, Zhi-Yuan Wu, Juhi Bansal, Srinath Krishnan
  • Publication number: 20120306021
    Abstract: A semiconductor device is provided that includes a first pair of P channel field effect transistors (PFET) with a common source connected to a voltage contact and a gate connected to a drain of the other PFET and a pair of N channel field effect transistors (NFET) sized smaller than the first pair of PFETs with a drain connected to the drain of the respective PFET of the first pair of PFETs, a common source connected to a ground contact, and a gate connected to the drain of an opposite PFET of the first pair of PFETs. Additionally, a second pair of PFETs sized larger than the NFETs and approximately one-half that of the first pair of PFETS, each of the second pair of PFETs having a drain respectively coupled to a connection linking the respective drain of the NFET of the pair of NFETs to the drain of the PFET of the first pair of PFETs. Complementary bit lines are included, each of the complementary bit lines respectively connected to a source of the second pair of PFETs.
    Type: Application
    Filed: June 3, 2011
    Publication date: December 6, 2012
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Srikanth SAMAVEDAM, Bipul PAUL, Srinath KRISHNAN, Sriram BALASUBRAMANIAN
  • Patent number: 7768095
    Abstract: A method of manufacturing an integrated circuit (IC) can utilize a shallow trench isolation (STI) technique. The shallow trench isolation technique can be used in an IC process. Separate liners for the trench are used for NMOS and PMOS regions. The liners can induce strain in the substrate.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: August 3, 2010
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Srinath Krishnan
  • Publication number: 20090294896
    Abstract: A method of manufacturing an integrated circuit (IC) can utilize a shallow trench isolation (STI) technique. The shallow trench isolation technique can be used in an IC process. Separate liners for the trench are used for NMOS and PMOS regions. The liners can induce strain in the substrate.
    Type: Application
    Filed: August 7, 2009
    Publication date: December 3, 2009
    Inventor: Srinath Krishnan
  • Patent number: 7626242
    Abstract: A method of manufacturing an integrated circuit (IC) can utilize a shallow trench isolation (STI) technique. The shallow trench isolation technique can be used in an IC process. Separate liners for the trench are used for NMOS and PMOS regions. The liners can induce strain in the substrate.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: December 1, 2009
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Srinath Krishnan
  • Publication number: 20080164561
    Abstract: A method of manufacturing an integrated circuit (IC) can utilize a shallow trench isolation (STI) technique. The shallow trench isolation technique can be used in an IC process. Separate liners for the trench are used for NMOS and PMOS regions. The liners can induce strain in the substrate.
    Type: Application
    Filed: March 13, 2008
    Publication date: July 10, 2008
    Inventor: Srinath Krishnan
  • Patent number: 7364962
    Abstract: A method of manufacturing an integrated circuit (IC) can utilize a shallow trench isolation (STI) technique. The shallow trench isolation technique can be used in an IC process. Separate liners for the trench are used for NMOS and PMOS regions. The liners can induce strain in the substrate.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: April 29, 2008
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Srinath Krishnan
  • Patent number: 7253068
    Abstract: The silicon-on-insulator (SOI) arrangement provides dual SOI film thicknesses for body-resistance control and provides a bulk silicon substrate on which a buried oxide (BOX) layer is provided. The BOX layer has recesses formed therein and unrecessed portions. The silicon layer is formed on the BOX layer and closes the recesses and covers the unrecessed portions of the BOX layer. Shallow trench isolation regions define and isolate first silicon regions from second silicon regions that each include one of the recesses. Floating-body devices are formed within the first silicon regions, which exhibit a first thickness, and body-tied devices are formed within the second silicon regions that include the thicker silicon of the recesses.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: August 7, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Dong-Hyuk Ju, Srinath Krishnan, Mario Pelella
  • Patent number: 7132683
    Abstract: A structure, for testing relative to an MOS transistor, closely resembles the MOS transistor of interest. For example, certain dimensions and a number of dopant concentrations typically are substantially the same in the test structure as found in corresponding elements of the MOS transistor of interest. However, the regions of the test structure corresponding to the source and drain of the transistor have no halos or extensions that might cause gate overlap; and in the test structure, these regions are of a semiconductor type opposite the type found in the source and drain of the transistor. The test structure enables accurate measurement of the gate-body current, for modeling floating body effects and/or for direct electrical measurement of gate length.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: November 7, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Srinath Krishnan, William George En
  • Patent number: 7122863
    Abstract: A semiconductor-on-insulator (SOI) device. The SOI device includes an SOI wafer including an active layer, a substrate and a buried insulation layer disposed therebetween. The buried insulation layer includes an oxide trap region disposed along an upper surface of the buried insulation layer, the oxide trap region having a plurality of oxide traps to promote carrier recombination.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: October 17, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Dong-Hyuk Ju, William G. En, Srinath Krishnan, Xilin Judy An
  • Patent number: 7071044
    Abstract: A structure for testing relative to an MOS transistor, can be easily constructed as part of the CMOS process flow. A doped device well is formed, for example, in a silicon-on-insulator structure. The concentration level in the well corresponds to that for a well of the transistor. Gate insulator and polysilicon layers are formed, and the polysilicon is implanted with dopant, to a concentration level expected in the transistor gate. After gate patterning, the methodology involves forming sidewall spacers and implanting dopant into the active device well, to form regions in the test structure corresponding to the transistor source and drain. Although the concentrations mimic those in the transistor source and drain, these test structure regions are doped with opposite type dopant material. The test structure enables accurate measurement of the gate-body current, for modeling floating body effects and/or for measurement of gate length.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: July 4, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Srinath Krishnan, William George En
  • Patent number: 7045433
    Abstract: A method of manufacturing a semiconductor device includes forming a gate, source/drain extensions, buffer regions, and source/drain regions. The gate is formed over a semiconductor layer, and the source/drain extensions are formed within the semiconductor layer and adjacent the gate. The buffer regions are formed within first amorphous implant regions, and the source/drain regions are formed within second amorphous implant regions. The buffer regions and the source/drain regions are activated using solid-phase epitaxy whereby sidewalls of the activated buffer regions and the activated source/drain regions are substantially vertical.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: May 16, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Srinath Krishnan
  • Patent number: 6955969
    Abstract: A method of forming a channel region for a transistor includes forming a layer of silicon germanium (SiGe) above a substrate, forming an oxide layer above the SiGe layer wherein the oxide layer includes an aperture in a channel area and the aperture is filled with a SiGe feature, depositing a layer having a first thickness above the oxide layer and the SiGe feature, and forming source and drain regions in the layer.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: October 18, 2005
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Ihsan J. Djomehri, Jung-Suk Goo, Srinath Krishnan, Witold P. Maszara, James N. Pan, Qi Xiang
  • Publication number: 20050048743
    Abstract: A method of forming a channel region for a transistor includes forming a layer of silicon germanium (SiGe) above a substrate, forming an oxide layer above the SiGe layer wherein the oxide layer includes an aperture in a channel area and the aperture is filled with a SiGe feature, depositing a layer having a first thickness above the oxide layer and the SiGe feature, and forming source and drain regions in the layer.
    Type: Application
    Filed: September 3, 2003
    Publication date: March 3, 2005
    Inventors: Ihsan Djomehri, Jung-Suk Goo, Srinath Krishnan, Witold Maszara, James Pan, Qi Xiang
  • Patent number: 6830987
    Abstract: An SOI semiconductor and method for making the same includes a substrate and dielectric support structures that support a silicon body above the substrate. This creates a void underneath the silicon body and thereby reduces the capacitance between the source/drain regions on body and the substrate.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: December 14, 2004
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Mario P. Pelella, Srinath Krishnan, William G. En, Witold P. Maszara
  • Patent number: 6727149
    Abstract: A method of making a Silicon-on-Insulator (SOI) transistor includes forming a body layer that is fully depleted when the SOI transistor is in a conductive state and forming first p+ regions adjacent each of the SOI transistor source/drain regions to adjust the SOI transistor threshold voltage. To suppress punch-through current, an additional implant step is carried out to form second p+ regions adjacent first implant regions.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: April 27, 2004
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Srinath Krishnan, Witold P. Maszara, Zoran Krivokapic
  • Patent number: 6717212
    Abstract: A device and method for making a semiconductor-on-insulator (SOI) structure having a leaky, thermally conductive material (LTCIM) layer disposed between a semiconductor substrate and a semiconductor layer.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: April 6, 2004
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Dong-Hyuk Ju, William George En, Srinath Krishnan, Concetta E. Riccobene, Zoran Krivokapic, Judy Xilin An, Bin Yu