Patents by Inventor Deepak Sherlekar

Deepak Sherlekar 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: 11837280
    Abstract: The independent claims of the present disclosure signify a concise description of embodiments. An electronic structure based on complementary-field effect transistor (CFET) architecture is disclosed. The electronic structure comprises an n-channel metal-oxide-semiconductior (NMOS) gate-all-around (GAA) channel in a first layer, and p-channel metal-oxide-semiconductor (PMOS) GAA channel in a second layer. The PMOS GAA channel is wider compared to the NMOS GAA channel. The first layer is above the second layer and separated by a dielectric layer.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: December 5, 2023
    Assignee: Synopsys, Inc.
    Inventors: Victor Moroz, Deepak Sherlekar, Jamil Kawa
  • Patent number: 11416661
    Abstract: A method includes generating a first bitmap for a cell. The first bitmap is indicative of mapping constraints of the cell. The method also includes generating a second bitmap for a PSC filler cell. The second bitmap is indicative of the mapping constraints of the PSC filler cell. The method also includes a bitwise logical operation between a portion of the first bitmap and a respective portion of the second bitmap and determining a compatibility between the cell and the PSC filler cell based on at least a result of the bitwise logical operation.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: August 16, 2022
    Assignee: Synopsys, Inc.
    Inventors: Kai-Ping Wang, Wencai Zheng, Deepak Sherlekar, Xiaolin Yuan
  • Publication number: 20210042459
    Abstract: A method includes generating a first bitmap for a cell. The first bitmap is indicative of mapping constraints of the cell. The method also includes generating a second bitmap for a PSC filler cell. The second bitmap is indicative of the mapping constraints of the PSC filler cell. The method also includes a bitwise logical operation between a portion of the first bitmap and a respective portion of the second bitmap and determining a compatibility between the cell and the PSC filler cell based on at least a result of the bitwise logical operation.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 11, 2021
    Inventors: Kai-Ping WANG, Wencai ZHENG, Deepak SHERLEKAR, Xiaolin YUAN
  • Patent number: 8595661
    Abstract: A finFET block architecture suitable for use of a standard cell library, is based on an arrangement including a first set of semiconductor fins in a first region of the substrate having a first conductivity type, and a second set of semiconductor fins in a second region of the substrate, the second region having a second conductivity type. A patterned gate conductor layer including gate traces in the first and second regions, arranged over channel regions of the first and second sets of semiconductor fins is used for transistor gates. Patterned conductor layers over the gate conductor layer are arranged in orthogonal layout patterns, and can include a plurality of floating power buses over the fins in the first and second regions.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: November 26, 2013
    Assignee: Synopsys, Inc.
    Inventors: Jamil Kawa, Victor Moroz, Deepak Sherlekar
  • Patent number: 8561003
    Abstract: A finFET block architecture includes a first set of semiconductor fins having a first conductivity type, and a second set of semiconductor fins having a second conductivity type. An inter-block insulator is placed between outer fins of the first and second sets. A patterned gate conductor layer includes a first plurality of gate traces extending across the set of fins in the first block without crossing the inter-block insulator, and a second plurality of gate traces extending across the set of fins in the second block without crossing the inter-block insulator. Patterned conductor layers over the gate conductor layer are arranged in orthogonal layout patterns, and include an inter-block connector arranged to connect gate traces in the first and second blocks.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: October 15, 2013
    Assignee: Synopsys, Inc.
    Inventors: Jamil Kawa, Victor Moroz, Deepak Sherlekar
  • Patent number: 8392862
    Abstract: Various methods and apparatuses are described for a power distribution structure. In an embodiment, an integrated circuit contains power gating cells that each contain Metal Oxide Semiconductor (MOS) device switches located relative in the power distribution structure to power up and down a block of logic containing a plurality of individual cells using these MOS device switches. The MOS device switches can be tuned to requirements of a target block of logic in order to meet its optimal voltage drop requirements during its active operational state while minimizing leakage current in its off state.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: March 5, 2013
    Assignee: Synopsys, Inc.
    Inventors: Oscar Siguenza, Duane Breid, Gene Sluss, Deepak Sherlekar, Mike Colwell
  • Publication number: 20130026571
    Abstract: A finFET block architecture includes a first set of semiconductor fins having a first conductivity type, and a second set of semiconductor fins having a second conductivity type. An inter-block insulator is placed between outer fins of the first and second sets. A patterned gate conductor layer includes a first plurality of gate traces extending across the set of fins in the first block without crossing the inter-block insulator, and a second plurality of gate traces extending across the set of fins in the second block without crossing the inter-block insulator. Patterned conductor layers over the gate conductor layer are arranged in orthogonal layout patterns, and include an inter-block connector arranged to connect gate traces in the first and second blocks.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: Synopsys, Inc.
    Inventors: JAMIL KAWA, VICTOR MOROZ, DEEPAK SHERLEKAR
  • Publication number: 20130026572
    Abstract: A finFET block architecture suitable for use of a standard cell library, is based on an arrangement including a first set of semiconductor fins in a first region of the substrate having a first conductivity type, and a second set of semiconductor fins in a second region of the substrate, the second region having a second conductivity type. A patterned gate conductor layer including gate traces in the first and second regions, arranged over channel regions of the first and second sets of semiconductor fins is used for transistor gates. Patterned conductor layers over the gate conductor layer are arranged in orthogonal layout patterns, and can include a plurality of floating power buses over the fins in the first and second regions.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: Synopsy, Inc.
    Inventors: JAMIL KAWA, Victor Moroz, Deepak Sherlekar
  • Patent number: 7989849
    Abstract: An integrated circuit has a power rail formed of a first wire in a lower metal layer and a second wire in an upper metal layer and that run in the same direction in their respective layers. A number of vias connect the first and second wires, to form a sandwich power rail structure. Other embodiments are also described and claimed.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: August 2, 2011
    Assignee: Synopsys, Inc.
    Inventors: Deepak Sherlekar, Darrell Heinecke, Eswar Veluri
  • Publication number: 20080111158
    Abstract: An integrated circuit has a power rail formed of a first wire in a lower metal layer and a second wire in an upper metal layer and that run in the same direction in their respective layers. A number of vias connect the first and second wires, to form a sandwich power rail structure. Other embodiments are also described and claimed.
    Type: Application
    Filed: October 10, 2007
    Publication date: May 15, 2008
    Inventors: Deepak Sherlekar, Darrell Heinecke, Eswar Veluri
  • Publication number: 20070180419
    Abstract: Various methods and apparatuses are described in which an integrated circuit is organized into rows and columns of macro cells having a layout architecture that includes at least two metal layers and a plurality of traces carrying three or more different potentials of voltage routed by the metal layers. A first, a second, and a third adjacent metal layers extend across the integrated circuit. The plurality of traces carry three or more different potentials of voltage and are routed in the metal layers. A first power trace supplies a VDD voltage potential. A second power trace supplies a VSS voltage potential. A third power trace supplies a third voltage potential to support sleep modes and retain data during sleep modes. All three power supply traces connect to one or more transistors in a first macro cell.
    Type: Application
    Filed: April 11, 2007
    Publication date: August 2, 2007
    Inventors: Deepak Sherlekar, Gene Sluss, Tushar Gheewale
  • Publication number: 20060198228
    Abstract: An apparatus for a volatile latch circuit. The volatile latch circuit may have a master latch sub circuit coupled to a slave latch sub circuit. The slave latch sub circuit maintains the logic state stored by the volatile latch circuit. The slave sub circuit may connect to a first power trace that continuously provides a first voltage potential to the slave latch sub circuit even during a sleep mode. The master latch sub circuit may connect to a second power trace that provides a second voltage potential to the master latch sub circuit that is switchably turned off during the sleep mode.
    Type: Application
    Filed: April 10, 2006
    Publication date: September 7, 2006
    Inventors: Gene Sluss, Deepak Sherlekar, Tushar Gheewale