Patents by Inventor Ranjith Kumar

Ranjith Kumar 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: 20250225306
    Abstract: Multi version library cell handling and integrated circuit structures fabricated therefrom are described. In an example, an integrated circuit structure includes a plurality of gate lines parallel along a first direction of a substrate and having a pitch along a second direction orthogonal to the first direction. A first version of a cell type is over a first portion of the plurality of gate lines, the first version of the cell type including a first plurality of interconnect lines having a second pitch along the second direction, the second pitch less than the first pitch.
    Type: Application
    Filed: March 25, 2025
    Publication date: July 10, 2025
    Inventors: Ranjith KUMAR, Quan SHI, Mark T. BOHR, Andrew W. YEOH, Sourav CHAKRAVARTY, Barbara A. CHAPPELL, M. Clair WEBB
  • Publication number: 20250148183
    Abstract: A method of forming an integrated circuit structure is provided. The method includes: providing a logic cell structure including a first input node, a second input node, and a pulling network connected to a reference voltage and an output node, wherein the pulling network includes a plurality of transistor segments; determining a delay associated with at least one of the first input node and the second input node; and connecting the plurality of transistor segments to the first input node, the second input node and the output node based at least in part on the determined delay.
    Type: Application
    Filed: January 8, 2025
    Publication date: May 8, 2025
    Inventors: KUMAR LALGUDI, RANJITH KUMAR, MOHAMMED RABIUL ISLAM, JIANYANG XU
  • Publication number: 20250068819
    Abstract: A method includes arranging first and second rows of gate regions in a cell. The first row has a first width extending from first to last gate regions and equal to a first multiple of a gate region pitch. The second row has a second width extending from first to last gate regions and equal to a second multiple of the gate region pitch greater than the first multiple. The method includes defining first through fourth cell border segments by extending the first and second segments along the first and last gate regions of the first row, and extending the third and fourth segments along the first and last gate regions of the second row, whereby the border is non-rectangular based on one or both of the first and third segments or the second and fourth segments being unaligned with each other, and storing the cell in a storage device.
    Type: Application
    Filed: August 21, 2023
    Publication date: February 27, 2025
    Inventors: Ranjith KUMAR, Mohammed Zackriya VANAIKAR
  • Patent number: 12223247
    Abstract: A method of forming an integrated circuit structure is provided. The method includes: providing a logic cell structure including a first input node, a second input node, and a pulling network connected to a reference voltage and an output node, wherein the pulling network includes a plurality of transistor segments; determining a delay associated with at least one of the first input node and the second input node; and connecting the plurality of transistor segments to the first input node, the second input node and the output node based at least in part on the determined delay.
    Type: Grant
    Filed: September 22, 2023
    Date of Patent: February 11, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Kumar Lalgudi, Ranjith Kumar, Mohammed Rabiul Islam, Jianyang Xu
  • Publication number: 20240362391
    Abstract: Multi version library cell handling and integrated circuit structures fabricated therefrom are described. In an example, an integrated circuit structure includes a plurality of gate lines parallel along a first direction of a substrate and having a pitch along a second direction orthogonal to the first direction. A first version of a cell type is over a first portion of the plurality of gate lines, the first version of the cell type including a first plurality of interconnect lines having a second pitch along the second direction, the second pitch less than the first pitch.
    Type: Application
    Filed: July 10, 2024
    Publication date: October 31, 2024
    Inventors: Ranjith KUMAR, Quan SHI, Mark T. BOHR, Andrew W. YEOH, Sourav CHAKRAVARTY, Barbara A. CHAPPELL, M. Clair WEBB
  • Patent number: 12067338
    Abstract: Multi version library cell handling and integrated circuit structures fabricated therefrom are described. In an example, an integrated circuit structure includes a plurality of gate lines parallel along a first direction of a substrate and having a pitch along a second direction orthogonal to the first direction. A first version of a cell type is over a first portion of the plurality of gate lines, the first version of the cell type including a first plurality of interconnect lines having a second pitch along the second direction, the second pitch less than the first pitch.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: August 20, 2024
    Assignee: Intel Corporation
    Inventors: Ranjith Kumar, Quan Shi, Mark T. Bohr, Andrew W. Yeoh, Sourav Chakravarty, Barbara A. Chappell, M. Clair Webb
  • Patent number: 11996362
    Abstract: Integrated circuit (IC) cell architectures including a crenellated interconnect trace layout. A crenellated trace layout may be employed where an IC cell includes transistor having a source/drain terminal interconnected through a back-side (3D) routing scheme that reduces front-side routing density for a given transistor footprint. In the crenellated layout, adjacent interconnect traces or tracks may have their ends staggered according to a crenellation phase for the cell. Crenellated tracks may intersect one cell boundary with adjacent tracks intersecting an opposite cell boundary. Track ends may be offset by at least the width of an underlying orthogonal interconnect trace. Crenellated track ends may be offset by the width of an underlying orthogonal interconnect trace and half a spacing between adjacent orthogonal interconnect traces.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: May 28, 2024
    Assignee: Intel Corporation
    Inventors: Patrick Morrow, Mauro J. Kobrinsky, Mark T. Bohr, Tahir Ghani, Rishabh Mehandru, Ranjith Kumar
  • Publication number: 20240074650
    Abstract: Disclosed is a device for generating a toroidal source of illumination is disclosed. The device comprises a translucent disc with a concentric hole. A planar coil of side emitting optic fiber is disposed on one surface of the disc. The coil is energized with an LED at one end of the coil. The light emitted by the side of the coil is randomly scattered by the disc producing a toroidal source of light at the other surface of the disc. This source is used with instruments for assessing the dryness of the human eye. Further embodiments describe adaptations for measuring tear breakup time and the height of the tear meniscus in the human eye.
    Type: Application
    Filed: September 22, 2023
    Publication date: March 7, 2024
    Inventors: Sourav PAL, Ranjith KUMAR, Ronal Issac VETTIKATTU, Justin ANTONY
  • Publication number: 20240012975
    Abstract: A method of forming an integrated circuit structure is provided. The method includes: providing a logic cell structure including a first input node, a second input node, and a pulling network connected to a reference voltage and an output node, wherein the pulling network includes a plurality of transistor segments; determining a delay associated with at least one of the first input node and the second input node; and connecting the plurality of transistor segments to the first input node, the second input node and the output node based at least in part on the determined delay.
    Type: Application
    Filed: September 22, 2023
    Publication date: January 11, 2024
    Inventors: KUMAR LALGUDI, RANJITH KUMAR, MOHAMMED RABIUL ISLAM, JIANYANG XU
  • Patent number: 11816412
    Abstract: A method of forming an integrated circuit structure is provided. The method includes: providing a logic cell structure including a first input node, a second input node, and a pulling network connected to a reference voltage and an output node, wherein the pulling network includes a plurality of transistor segments; determining a delay associated with at least one of the first input node and the second input node; and connecting the plurality of transistor segments to the first input node, the second input node and the output node based at least in part on the determined delay.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: November 14, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Kumar Lalgudi, Ranjith Kumar, Mohammed Rabiul Islam, Jianyang Xu
  • Patent number: 11764219
    Abstract: Embodiments disclosed herein include a semiconductor device. In an embodiment, the semiconductor device comprises a substrate, and a cell on the substrate. In an embodiment, the cell comprises a plurality of transistors over the substrate, and a first metal layer over the plurality of transistors. In an embodiment, the first metal layer comprises a first power line, wherein a width of the first power line is entirely within the cell, a second power line, wherein a width of the second power line is entirely within the cell, and a plurality of signal lines between the first power line and the second power line.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: September 19, 2023
    Assignee: Intel Corporation
    Inventors: Harshitha Vishwanath, Renukprasad Hiremath, Sukru Yemenicioglu, Ranjith Kumar, Ruth Amy Brain
  • Publication number: 20230255473
    Abstract: This disclosure discloses an apparatus and method thereof for a comprehensive visual function testing apparatus. A plurality of visual test stimuli may be spatiotemporally sequenced and presented to the subject undergoing visual function tests including, but not limited to, visual acuity test, stereoscopic vision test, field of vision test and contrast sensitivity test. Furthermore, by combining all the elements under the same computational device, it streamlines the conventional visual function testing process, provides automated visual function testing of subjects, and refraction correction when required, such as for perimetry testing. Such an apparatus opens up unprecedented possibilities for refining the visual function testing process. High degree of integration resulting from adoption of the features disclosed, a variety of compact, portable, wearable embodiments may be achieved.
    Type: Application
    Filed: September 7, 2021
    Publication date: August 17, 2023
    Inventors: Venkatakrishnan SRINIVASAN, Revathy Manthri RANGARAJ, Subhajit Banerjee PURNAPATRA, Ranjith Kumar, Keerthighaan KANAGASEGAR
  • Patent number: 11682664
    Abstract: An integrated circuit structure includes a cell on a metal level, the cell defined by a cell boundary. A plurality of substantially parallel interconnect lines are inside the cell boundary. A first power track and a second power track are both dedicated to power and are located completely inside the cell boundary without any power tracks along the cell boundary on the metal level.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: June 20, 2023
    Assignee: Intel Corporation
    Inventors: Srinivasa Chaitanya Gadigatla, Ranjith Kumar, Marni Nabors, Quan Phan
  • Publication number: 20230046755
    Abstract: Vertical integration schemes and circuit elements architectures for area scaling of semiconductor devices are described. In an example, an inverter structure includes a semiconductor fin separated vertically into an upper region and a lower region. A first plurality of gate structures is included for controlling the upper region of the semiconductor fin. A second plurality of gate structures is included for controlling the lower region of the semiconductor fin. The second plurality of gate structures has a conductivity type opposite the conductivity type of the first plurality of gate structures.
    Type: Application
    Filed: October 31, 2022
    Publication date: February 16, 2023
    Inventors: Rishabh MEHANDRU, Patrick MORROW, Ranjith KUMAR, Cory E. WEBER, Seiyon KIM, Stephen M. CEA, Tahir GHANI
  • Patent number: 11522072
    Abstract: Vertical integration schemes and circuit elements architectures for area scaling of semiconductor devices are described. In an example, an inverter structure includes a semiconductor fin separated vertically into an upper region and a lower region. A first plurality of gate structures is included for controlling the upper region of the semiconductor fin. A second plurality of gate structures is included for controlling the lower region of the semiconductor fin. The second plurality of gate structures has a conductivity type opposite the conductivity type of the first plurality of gate structures.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: December 6, 2022
    Assignee: Intel Corporation
    Inventors: Rishabh Mehandru, Patrick Morrow, Ranjith Kumar, Cory E. Weber, Seiyon Kim, Stephen M. Cea, Tahir Ghani
  • Publication number: 20220335191
    Abstract: A method of forming an integrated circuit structure is provided. The method includes: providing a logic cell structure including a first input node, a second input node, and a pulling network connected to a reference voltage and an output node, wherein the pulling network includes a plurality of transistor segments; determining a delay associated with at least one of the first input node and the second input node; and connecting the plurality of transistor segments to the first input node, the second input node and the output node based at least in part on the determined delay.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 20, 2022
    Inventors: KUMAR LALGUDI, RANJITH KUMAR, MOHAMMED RABIUL ISLAM, JIANYANG XU
  • Patent number: 11409935
    Abstract: An integrated circuit structure includes a first metal level comprising a first plurality of interconnect lines along a first direction. A cell is on at least the first metal level, the cell having a pin comprising more than two of the first plurality of interconnect lines. A second metal level comprising a second plurality of interconnect lines overlays the first metal level, where the second plurality of interconnect lines is along a second direction. Two or more vias are on at least one of the second plurality of interconnect lines to connect to the pin.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: August 9, 2022
    Assignee: Intel Corporation
    Inventors: Ranjith Kumar, Srinivasa Chaitanya Gadigatla, Tamanna Husain, Abhinand Ramakrishnan, James Graeber, Kohinoor Basu
  • Publication number: 20220149075
    Abstract: Multi version library cell handling and integrated circuit structures fabricated therefrom are described. In an example, an integrated circuit structure includes a plurality of gate lines parallel along a first direction of a substrate and having a pitch along a second direction orthogonal to the first direction. A first version of a cell type is over a first portion of the plurality of gate lines, the first version of the cell type including a first plurality of interconnect lines having a second pitch along the second direction, the second pitch less than the first pitch.
    Type: Application
    Filed: January 26, 2022
    Publication date: May 12, 2022
    Inventors: Ranjith KUMAR, Quan SHI, Mark T. BOHR, Andrew W. YEOH, Sourav CHAKRAVARTY, Barbara A. CHAPPELL, M. Clair WEBB
  • Patent number: 11271010
    Abstract: Multi version library cell handling and integrated circuit structures fabricated therefrom are described. In an example, an integrated circuit structure includes a plurality of gate lines parallel along a first direction of a substrate and having a pitch along a second direction orthogonal to the first direction. A first version of a cell type is over a first portion of the plurality of gate lines, the first version of the cell type including a first plurality of interconnect lines having a second pitch along the second direction, the second pitch less than the first pitch.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: March 8, 2022
    Assignee: Intel Corporation
    Inventors: Ranjith Kumar, Quan Shi, Mark T. Bohr, Andrew W. Yeoh, Sourav Chakravarty, Barbara A. Chappell, M. Clair Webb
  • Publication number: 20220028779
    Abstract: Integrated circuit (IC) cell architectures including a crenellated interconnect trace layout. A crenellated trace layout may be employed where an IC cell includes transistor having a source/drain terminal interconnected through a back-side (3D) routing scheme that reduces front-side routing density for a given transistor footprint. In the crenellated layout, adjacent interconnect traces or tracks may have their ends staggered according to a crenellation phase for the cell. Crenellated tracks may intersect one cell boundary with adjacent tracks intersecting an opposite cell boundary. Track ends may be offset by at least the width of an underlying orthogonal interconnect trace. Crenellated track ends may be offset by the width of an underlying orthogonal interconnect trace and half a spacing between adjacent orthogonal interconnect traces.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Applicant: Intel Corporation
    Inventors: Patrick Morrow, Mauro J. Kobrinsky, Mark T. Bohr, Tahir Ghani, Rishabh Mehandru, Ranjith Kumar