Patents by Inventor Sumitha George

Sumitha George 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: 10678981
    Abstract: A computer-implemented method includes receiving a text description of a logic circuit design, reading a plurality of circuit priority indicator values, synthesizing a logic circuit design based, at least in part, on those circuit priority indicator values, and fabricating logic circuits using the synthesized logic circuit design. A corresponding computer program product and computer system are also disclosed herein.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: June 9, 2020
    Assignee: International Business Machines Corporation
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock
  • Patent number: 10672475
    Abstract: Embodiments include nonvolatile a memory (NVM) device that can be configured for logic switching and/or digital computing. For example, embodiments of the NVM device can be configured as any one or combination of a memory cell, a D flip flop (DFF), a Backup and Restore circuit (B&R circuit), and/or a latch for a DFF. Any of the NVM devices can have a Fe field effect transistors (FeFET) configured to exploit the IDS?VG hysteresis of the steep switch at low voltage for logic memory synergy. The FeFET-based devices can be configured to include a wide hysteresis, a steep hysteresis edge, and high ratio between the two IDS states at VG=0.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: June 2, 2020
    Assignee: The Penn State Research Foundation
    Inventors: Xueqing Li, Sumitha George, John Sampson, Sumeet Gupta, Suman Datta, Vijaykrishnan Narayanan, Kaisheng Ma
  • Publication number: 20200027508
    Abstract: Embodiments include nonvolatile a memory (NVM) device that can be configured for logic switching and/or digital computing. For example, embodiments of the NVM device can be configured as any one or combination of a memory cell, a D flip flop (DFF), a Backup and Restore circuit (B&R circuit), and/or a latch for a DFF. Any of the NVM devices can have a Fe field effect transistors (FeFET) configured to exploit the IDS?VG hysteresis of the steep switch at low voltage for logic memory synergy. The FeFET-based devices can be configured to include a wide hysteresis, a steep hysteresis edge, and high ratio between the two IDS states at VG=0.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 23, 2020
    Inventors: Xueqing Li, Sumitha George, John Sampson, Sumeet Gupta, Suman Datta, Vijaykrishnan Narayanan, Kaisheng Ma
  • Patent number: 10475514
    Abstract: Embodiments include nonvolatile a memory (NVM) device that can be configured for logic switching and/or digital computing. For example, embodiments of the NVM device can be configured as any one or combination of a memory cell, a D flip flop (DFF), a Backup and Restore circuit (B&R circuit), and/or a latch for a DFF. Any of the NVM devices can have a Fe field effect transistors (FeFET) configured to exploit the IDS-VG hysteresis of the steep switch at low voltage for logic memory synergy. The FeFET-based devices can be configured to include a wide hysteresis, a steep hysteresis edge, and high ratio between the two IDS states at VG=0.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: November 12, 2019
    Assignee: The Penn State Research Foundation
    Inventors: Xueqing Li, Sumitha George, John Sampson, Sumeet Gupta, Suman Datta, Vijaykrishnan Narayanan, Kaisheng Ma
  • Publication number: 20190034563
    Abstract: A computer-implemented method includes receiving a text description of a logic circuit design, reading a plurality of circuit priority indicator values, synthesizing a logic circuit design based, at least in part, on those circuit priority indicator values, and fabricating logic circuits using the synthesized logic circuit design. A corresponding computer program product and computer system are also disclosed herein.
    Type: Application
    Filed: October 3, 2018
    Publication date: January 31, 2019
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock
  • Patent number: 10133840
    Abstract: A computer-implemented method includes receiving, with one or more processors, a text-based description of a logic circuit comprising a plurality of logic sub-circuits, determining within the text-based description, with one or more processors, a set of circuit priority indicators for a corresponding set of the logic sub-circuits, and synthesizing, with one or more processors, the logic circuit according to the set of circuit priority indicators to provide a synthesized circuit description. A corresponding computer program product and computer system are also disclosed herein.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: November 20, 2018
    Assignee: International Business Machines Corporation
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock
  • Publication number: 20180330791
    Abstract: Embodiments include nonvolatile a memory (NVM) device that can be configured for logic switching and/or digital computing. For example, embodiments of the NVM device can be configured as any one or combination of a memory cell, a D flip flop (DFF), a Backup and Restore circuit (B&R circuit), and/or a latch for a DFF. Any of the NVM devices can have a Fe field effect transistors (FeFET) configured to exploit the IDS?VG hysteresis of the steep switch at low voltage for logic memory synergy. The FeFET-based devices can be configured to include a wide hysteresis, a steep hysteresis edge, and high ratio between the two IDS states at VG=0.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 15, 2018
    Inventors: Xueqing Li, Sumitha George, John Sampson, Sumeet Gupta, Suman Datta, Vijaykrishnan Narayanan, Kaisheng Ma
  • Patent number: 9985616
    Abstract: Embodiments relate to programmable delay circuit. An aspect includes a first stage comprising a first hybrid fin field effect transistor (finFET) comprising a first gate corresponding to a first control FET, and a second gate corresponding to a first default FET, and a first plurality of fins, wherein the first gate and the second gate of the first stage each partially control a first shared fin of the first plurality of fins. Another aspect includes a second stage connected in series with the first stage, the second stage comprising a second hybrid finFET comprising a first gate corresponding to a second control FET, and a second gate corresponding to a second default FET, and a second plurality of fins, wherein the first gate and the second gate of the second stage each partially control a second shared fin of the second plurality of fins.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: May 29, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock
  • Publication number: 20170161406
    Abstract: A computer-implemented method includes receiving, with one or more processors, a text-based description of a logic circuit comprising a plurality of logic sub-circuits, determining within the text-based description, with one or more processors, a set of circuit priority indicators for a corresponding set of the logic sub-circuits, and synthesizing, with one or more processors, the logic circuit according to the set of circuit priority indicators to provide a synthesized circuit description. A corresponding computer program product and computer system are also disclosed herein.
    Type: Application
    Filed: December 4, 2015
    Publication date: June 8, 2017
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock
  • Publication number: 20170126218
    Abstract: Embodiments relate to programmable delay circuit. An aspect includes a first stage comprising a first hybrid fin field effect transistor (finFET) comprising a first gate corresponding to a first control FET, and a second gate corresponding to a first default FET, and a first plurality of fins, wherein the first gate and the second gate of the first stage each partially control a first shared fin of the first plurality of fins. Another aspect includes a second stage connected in series with the first stage, the second stage comprising a second hybrid finFET comprising a first gate corresponding to a second control FET, and a second gate corresponding to a second default FET, and a second plurality of fins, wherein the first gate and the second gate of the second stage each partially control a second shared fin of the second plurality of fins.
    Type: Application
    Filed: January 3, 2017
    Publication date: May 4, 2017
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock
  • Patent number: 9614507
    Abstract: Embodiments relate to programmable delay circuit. An aspect includes a first stage comprising a first hybrid fin field effect transistor (finFET) comprising a first gate corresponding to a first control FET, and a second gate corresponding to a first default FET, and a first plurality of fins, wherein the first gate and the second gate of the first stage each partially control a first shared fin of the first plurality of fins. Another aspect includes a second stage connected in series with the first stage, the second stage comprising a second hybrid finFET comprising a first gate corresponding to a second control FET, and a second gate corresponding to a second default FET, and a second plurality of fins, wherein the first gate and the second gate of the second stage each partially control a second shared fin of the second plurality of fins.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: April 4, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock
  • Publication number: 20170012616
    Abstract: Embodiments relate to programmable delay circuit. An aspect includes a first stage comprising a first hybrid fin field effect transistor (finFET) comprising a first gate corresponding to a first control FET, and a second gate corresponding to a first default FET, and a first plurality of fins, wherein the first gate and the second gate of the first stage each partially control a first shared fin of the first plurality of fins. Another aspect includes a second stage connected in series with the first stage, the second stage comprising a second hybrid finFET comprising a first gate corresponding to a second control FET, and a second gate corresponding to a second default FET, and a second plurality of fins, wherein the first gate and the second gate of the second stage each partially control a second shared fin of the second plurality of fins.
    Type: Application
    Filed: September 2, 2015
    Publication date: January 12, 2017
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock
  • Publication number: 20170012615
    Abstract: Embodiments relate to programmable delay circuit. An aspect includes a first stage comprising a first hybrid fin field effect transistor (finFET) comprising a first gate corresponding to a first control FET, and a second gate corresponding to a first default FET, and a first plurality of fins, wherein the first gate and the second gate of the first stage each partially control a first shared fin of the first plurality of fins. Another aspect includes a second stage connected in series with the first stage, the second stage comprising a second hybrid finFET comprising a first gate corresponding to a second control FET, and a second gate corresponding to a second default FET, and a second plurality of fins, wherein the first gate and the second gate of the second stage each partially control a second shared fin of the second plurality of fins.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 12, 2017
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock
  • Patent number: 9543935
    Abstract: Embodiments relate to programmable delay circuit. An aspect includes a first stage comprising a first hybrid fin field effect transistor (finFET) comprising a first gate corresponding to a first control FET, and a second gate corresponding to a first default FET, and a first plurality of fins, wherein the first gate and the second gate of the first stage each partially control a first shared fin of the first plurality of fins. Another aspect includes a second stage connected in series with the first stage, the second stage comprising a second hybrid finFET comprising a first gate corresponding to a second control FET, and a second gate corresponding to a second default FET, and a second plurality of fins, wherein the first gate and the second gate of the second stage each partially control a second shared fin of the second plurality of fins.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: January 10, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock
  • Patent number: 8875084
    Abstract: Various embodiments include: determining boundary vertices for an ECO within a placed netlist based on: a first weight assigned to a gate array distribution; and a second weight assigned to routing congestion, the boundary vertices defining a polygon; implementing the ECO at gate level; estimating slack value for determined boundary vertices; assigning vertex weights to boundary vertices based on the estimated slack values for boundary vertices; calculating a weighted centroid location for the polygon, based on the vertex weights; locating spare latches in the placed netlist; determining a clock domain and a clock gating domain for each located spare latch; assigning a cost function to each located spare latch having a same clock domain and a same clock gating domain as the ECO; ranking each respective cost function for each located spare latch; and selecting the desired spare latch based on the ranking of the each located spare latch.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: October 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: Vijay K. Ankenapalli, Ayan Datta, Sumitha George, Charudhattan Nagarajan, James D. Warnock