Patents by Inventor Shrinivas J. Pandharpure

Shrinivas J. Pandharpure 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: 10090209
    Abstract: Various embodiments include approaches for predicting unity gain frequency in a MOSFET. In some cases, a method includes predicting a unity gain frequency (fT) in a MOSFET device in a manufacturing line, the method including: measuring a first set of in-line direct current (DC) parameters of the MOSFET on the manufacturing line at a first drain voltage (Vd1); extracting a transconductance (Gm) from the first set of in-line DC parameters as a function of a gate-voltage (Vg) and the first drain-voltage (Vd1); measuring a second set of in-line DC parameters of the MOSFET on the manufacturing line at a second drain voltage (Vd2); extracting a total gate capacitance (Cgg) from the second set of in-line DC parameters as a function of the gate-voltage (Vg); and predicting the unity gain frequency (fT) of the MOSFET based upon the extracted transconductance (Gm) and the extracted total gate capacitance (Cgg).
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: October 2, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Amit A. Dikshit, Tamilmani Ethirajan, Shrinivas J. Pandharpure, Vaidyanathan T. Subramanian, Josef S. Watts
  • Publication number: 20170271213
    Abstract: Various embodiments include approaches for predicting unity gain frequency in a MOSFET. In some cases, a method includes predicting a unity gain frequency (fT) in a MOSFET device in a manufacturing line, the method including: measuring a first set of in-line direct current (DC) parameters of the MOSFET on the manufacturing line at a first drain voltage (Vd1); extracting a transconductance (Gm) from the first set of in-line DC parameters as a function of a gate-voltage (Vg) and the first drain-voltage (Vd1); measuring a second set of in-line DC parameters of the MOSFET on the manufacturing line at a second drain voltage (Vd2); extracting a total gate capacitance (Cgg) from the second set of in-line DC parameters as a function of the gate-voltage (Vg); and predicting the unity gain frequency (fT) of the MOSFET based upon the extracted transconductance (Gm) and the extracted total gate capacitance (Cgg).
    Type: Application
    Filed: June 6, 2017
    Publication date: September 21, 2017
    Inventors: Amit A. Dikshit, Tamilmani Ethirajan, Shrinivas J. Pandharpure, Vaidyanathan T. Subramanian, Josef S. Watts
  • Patent number: 9704763
    Abstract: Various embodiments include approaches for predicting unity gain frequency in a MOSFET. In some cases, a method includes predicting a unity gain frequency (fT) in a MOSFET device in a manufacturing line, the method including: measuring a first set of in-line direct current (DC) parameters of the MOSFET on the manufacturing line at a first drain voltage (Vd1); extracting a transconductance (Gm) from the first set of in-line DC parameters as a function of a gate-voltage (Vg) and the first drain-voltage (Vd1); measuring a second set of in-line DC parameters of the MOSFET on the manufacturing line at a second drain voltage (Vd2); extracting a total gate capacitance (Cgg) from the second set of in-line DC parameters as a function of the gate-voltage (Vg); and predicting the unity gain frequency (fT) of the MOSFET based upon the extracted transconductance (Gm) and the extracted total gate capacitance (Cgg).
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: July 11, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Amit A. Dikshit, Tamilmani Ethirajan, Shrinivas J. Pandharpure, Vaidyanathan T. Subramanian, Josef S. Watts
  • Publication number: 20170046470
    Abstract: Approaches for a process design kit (PDK) for designing or manufacturing an integrated circuit with a hierarchical parameterized cell (PCELL) are provided. The PDK includes at least one model parameter which indicates a layout technique of the hierarchical PCELL, at least one hierarchical PCELL parameter which indicates at least one of the layout technique of the hierarchical PCELL and a parasitic characteristic of the hierarchical PCELL, and at least one layout vs. schematic (LVS) parameter which indicates the layout technique of the hierarchical PCELL. The hierarchical PCELL includes a pair of matching transistors. The PDK is configured to simulate and output mismatch characteristics and local variation characteristics of the hierarchical PCELL based on the at least one model parameter, the at least one hierarchical PCELL, and the at least one LVS parameter.
    Type: Application
    Filed: August 14, 2015
    Publication date: February 16, 2017
    Inventors: Radhika ALLAMRAJU, Santhosh MADHAVAN, Umashankar MAHALINGAM, Shrinivas J. PANDHARPURE, Giri N. RANGAN, Ashwin SRINIVAS
  • Publication number: 20150187665
    Abstract: Various embodiments include approaches for predicting unity gain frequency in a MOSFET. In some cases, a method includes predicting a unity gain frequency (fT) in a MOSFET device in a manufacturing line, the method including: measuring a first set of in-line direct current (DC) parameters of the MOSFET on the manufacturing line at a first drain voltage (Vd1); extracting a transconductance (Gm) from the first set of in-line DC parameters as a function of a gate-voltage (Vg) and the first drain-voltage (Vd1); measuring a second set of in-line DC parameters of the MOSFET on the manufacturing line at a second drain voltage (Vd2); extracting a total gate capacitance (Cgg) from the second set of in-line DC parameters as a function of the gate-voltage (Vg); and predicting the unity gain frequency (fT) of the MOSFET based upon the extracted transconductance (Gm) and the extracted total gate capacitance (Cgg).
    Type: Application
    Filed: January 2, 2014
    Publication date: July 2, 2015
    Applicant: International Business Machines Corporation
    Inventors: Amit A. Dikshit, Tamilmani Ethirajan, Shrinivas J. Pandharpure, Vaidyanathan T. Subramanian, Josef S. Watts