Patents by Inventor Aritra Dasgupta

Aritra Dasgupta 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: 20230394122
    Abstract: Various embodiments of the present disclosure provide a multi-layered framework for security of integrated circuits. In one example, an embodiment provides for removing one or more routing tables in a Register Transfer Level (RTL) source code that models a design for an SoC via a hardware description language, comprising replacing the one or more routing tables in the RTL source code with respective programmable memory, transforming a state space of one or more embedded state machines in the RTL source code, transforming one or more portions of combinational logic in the RTL source code, and/or removing one or more portions of security-critical logic in the RTL source code, comprising replacing the one or more portions of security-critical logic in the RTL source code with respective lookup tables.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 7, 2023
    Inventors: Swarup BHUNIA, Aritra DASGUPTA, Reiner DIZON, Aritra BHATTACHARYAY, Rasheed ALMAWZAN
  • Patent number: 11720654
    Abstract: The present disclosure provides systems and methods for timed unlocking and locking of hardware intellectual properties obfuscation. One such method includes determining whether received key inputs match a functional key sequence of an integrated circuit or a test key sequence of the integrated circuit; permanently enabling operation of the integrated circuit responsive to the received key inputs being determined to be a functional key sequence for permanently enabling operation of the integrated circuit; temporarily enabling operation of the integrated circuit responsive to the received key inputs being determined to be the test key sequence for temporarily enabling operation of the integrated circuit to perform testing of the functionality and disable thereafter; and locking sequential logic and combinational logic of the integrated circuit if the received key inputs are determined to not be either the functional key sequence or the test key sequence. Other systems and methods are also provided.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: August 8, 2023
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Swarup Bhunia, Abdulrahman Alaql, Aritra Dasgupta, Md Moshiur Rahman
  • Publication number: 20230006674
    Abstract: A method and system are directed to protecting hardware IP, particularly of ASIC designs. Programmability is introduced into an ASIC design to increase the difficulty of formulating ASIC designs as Boolean Satisfiability (SAT) problems. Fine-grain redaction of security-critical information from a design is employed by removing high-entropy logic blocks and subsequently inserting programmable components in place of the redacted portion to hide the actual design intent.
    Type: Application
    Filed: June 22, 2022
    Publication date: January 5, 2023
    Inventors: Swarup BHUNIA, Aritra DASGUPTA, Pravin GAIKWAD, Md Moshiur RAHMAN, Aritra BHATTACHARYAY
  • Publication number: 20220222386
    Abstract: The present disclosure describes various embodiments of systems, apparatuses, and methods of protecting an integrated circuit. One such method comprises operating the integrated circuit under a normal mode of operation; detecting, by a decommission controller, a triggering condition for a decommission operation to be initiated for the integrated circuit; initiating, by the decommission controller, a decommission mode for the integrated circuit after detection of the triggering condition; and causing, by the decommission controller, functionality of the integrated circuit to be irreversibly disabled after initiating the decommission mode. Other methods, systems, and apparatus are also presented.
    Type: Application
    Filed: January 11, 2022
    Publication date: July 14, 2022
    Inventors: Swarup BHUNIA, Md Moshiur RAHMAN, Aritra DASGUPTA, Abdulrahman ALAQL
  • Publication number: 20220188387
    Abstract: The present disclosure provides systems and methods for timed unlocking and locking of hardware intellectual properties obfuscation. One such method includes determining whether received key inputs match a functional key sequence of an integrated circuit or a test key sequence of the integrated circuit; permanently enabling operation of the integrated circuit responsive to the received key inputs being determined to be a functional key sequence for permanently enabling operation of the integrated circuit; temporarily enabling operation of the integrated circuit responsive to the received key inputs being determined to be the test key sequence for temporarily enabling operation of the integrated circuit to perform testing of the functionality and disable thereafter; and locking sequential logic and combinational logic of the integrated circuit if the received key inputs are determined to not be either the functional key sequence or the test key sequence. Other systems and methods are also provided.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 16, 2022
    Inventors: Swarup Bhunia, Abdulrahman Alaql, Aritra Dasgupta, Md Moshiur Rahman
  • Patent number: 11201061
    Abstract: Semiconductor structures and methods of fabricating the same using multiple nanosecond pulsed laser anneals are provided. The method includes exposing a gate stack formed on a semiconducting material to multiple nanosecond laser pulses at a peak temperature below a melting point of the semiconducting material.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: December 14, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Aritra Dasgupta, Oleg Gluschenkov
  • Patent number: 10553439
    Abstract: Semiconductor structures and methods of fabricating the same using multiple nanosecond pulsed laser anneals are provided. The method includes exposing a gate stack formed on a semiconducting material to multiple nanosecond laser pulses at a peak temperature below a melting point of the semiconducting material.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 4, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Aritra Dasgupta, Oleg Gluschenkov
  • Publication number: 20190385857
    Abstract: Semiconductor structures and methods of fabricating the same using multiple nanosecond pulsed laser anneals are provided. The method includes exposing a gate stack formed on a semiconducting material to multiple nanosecond laser pulses at a peak temperature below a melting point of the semiconducting material.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 19, 2019
    Inventors: Aritra DASGUPTA, Oleg GLUSCHENKOV
  • Patent number: 10361132
    Abstract: The disclosure relates to semiconductor structures and, more particularly, to structures with thinned dielectric material and methods of manufacture. The method includes depositing a high-k dielectric on a substrate. The method further includes depositing a titanium nitride film directly on the high-k while simultaneously etching the high-k dielectric.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: July 23, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Ruqiang Bao, Takashi Ando, Aritra Dasgupta, Kai Zhao, Unoh Kwon, Siddarth A. Krishnan
  • Patent number: 10263065
    Abstract: Methods of forming a metal resistor are provided. The methods may include: depositing a metal layer, e.g., tungsten, on a substrate; and forming the metal resistor by implanting a semiconductor species, e.g., silicon and/or germanium, into the metal layer to form a semiconductor-metal alloy layer from at least a portion of the metal layer. In certain embodiments, an adhesion layer may be deposited by ALD prior to metal layer depositing. The metal resistor has a sheet resistance that remains substantially constant prior to and after subsequent annealing.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: April 16, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Domingo A. Ferrer Luppi, Aritra Dasgupta, Benjamin G. Moser
  • Patent number: 10062618
    Abstract: Embodiments of the present invention provide a process that maintains a “keep cap” metal nitride layer on PFET devices within a CMOS structure. The keep cap metal nitride layer is in place while an N-type work function metal is formed on the NFET devices within the CMOS structure. A sacrificial rare earth oxide layer, such as a lanthanum oxide layer is used to facilitate removal of the n-type work function metal selective to the keep cap metal nitride layer.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: August 28, 2018
    Assignee: GLOBALFOUNDRIES, INC.
    Inventors: Takashi Ando, Aritra Dasgupta, Balaji Kannan, Unoh Kwon
  • Patent number: 9997610
    Abstract: Semiconductor structures and methods of fabricating the same using interrupted deposition processes and multiple laser anneals are provided. The structure includes a high-k gate stack with a high-k bilayer or nanolaminate where a bottom portion of the bilayer is crystallized while a top portion of the bilayer is amorphous.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 12, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Takashi Ando, Aritra Dasgupta, Oleg Gluschenkov, Balaji Kannan, Unoh Kwon
  • Patent number: 9997361
    Abstract: Semiconductor structures and methods of fabricating the same using interrupted deposition processes and multiple laser anneals are provided. The structure includes a high-k gate stack with a high-k bilayer or nanolaminate where a bottom portion of the bilayer is crystallized while a top portion of the bilayer is amorphous.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 12, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Takashi Ando, Aritra Dasgupta, Oleg Gluschenkov, Balaji Kannan, Unoh Kwon
  • Publication number: 20180090328
    Abstract: Semiconductor structures and methods of fabricating the same using multiple nanosecond pulsed laser anneals are provided. The method includes exposing a gate stack formed on a semiconducting material to multiple nanosecond laser pulses at a peak temperature below a melting point of the semiconducting material.
    Type: Application
    Filed: November 21, 2017
    Publication date: March 29, 2018
    Inventors: Aritra DASGUPTA, Oleg GLUSCHENKOV
  • Patent number: 9911597
    Abstract: A method including forming an oxygen gettering layer on one side of an insulating layer of a deep trench capacitor between the insulating layer and a substrate, the oxygen gettering layer including an aluminum containing compound, and depositing an inner electrode on top of the insulating layer, the inner electrode including a metal.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: March 6, 2018
    Assignee: International Business Machines Corporation
    Inventors: Takashi Ando, Eduard A. Cartier, Michael P. Chudzik, Aritra Dasgupta, Herbert L. Ho, Donghun Kang, Rishikesh Krishnan, Vijay Narayanan, Kern Rim
  • Patent number: 9859121
    Abstract: Semiconductor structures and methods of fabricating the same using multiple nanosecond pulsed laser anneals are provided. The method includes exposing a gate stack formed on a semiconducting material to multiple nanosecond laser pulses at a peak temperature below a melting point of the semiconducting material.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: January 2, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Aritra Dasgupta, Oleg Gluschenkov
  • Publication number: 20170250073
    Abstract: A method including forming an oxygen gettering layer on one side of an insulating layer of a deep trench capacitor between the insulating layer and a substrate, the oxygen gettering layer including an aluminum containing compound, and depositing an inner electrode on top of the insulating layer, the inner electrode including a metal.
    Type: Application
    Filed: May 15, 2017
    Publication date: August 31, 2017
    Inventors: Takashi Ando, Eduard A. Cartier, Michael P. Chudzik, Aritra Dasgupta, Herbert L. Ho, Donghun Kang, Rishikesh Krishnan, Vijay Narayanan, Kern Rim
  • Patent number: 9748235
    Abstract: One aspect of the disclosure relates to a method of forming an integrated circuit structure. The method may include: forming a first work function metal over a set of fins having at least a first fin and a second fin; implanting the first work function metal with a first species; removing the implanted first work function metal from over the first fin such that a remaining portion of the implanted first work function metal remains over the second fin; forming a second work function metal over the set of fins including over the remaining portion of the implanted first work function metal; implanting the second work function metal with a second species; and forming a metal over the implanted second work function metal over the set of fins thereby forming the gate stack.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: August 29, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Aritra Dasgupta, Benjamin G. Moser, Mohammad Hasanuzzaman, Murshed M. Chowdhury, Shahrukh A. Khan, Shafaat Ahmed, Joyeeta Nag
  • Publication number: 20170221889
    Abstract: One aspect of the disclosure relates to a method of forming an integrated circuit structure. The method may include: forming a first work function metal over a set of fins having at least a first fin and a second fin; implanting the first work function metal with a first species; removing the implanted first work function metal from over the first fin such that a remaining portion of the implanted first work function metal remains over the second fin; forming a second work function metal over the set of fins including over the remaining portion of the implanted first work function metal; implanting the second work function metal with a second species; and forming a metal over the implanted second work function metal over the set of fins thereby forming the gate stack.
    Type: Application
    Filed: February 2, 2016
    Publication date: August 3, 2017
    Inventors: Aritra Dasgupta, Benjamin G. Moser, Mohammad Hasanuzzaman, Murshed M. Chowdhury, Shahrukh A. Khan, Shafaat Ahmed, Joyeeta Nag
  • Publication number: 20170207134
    Abstract: The disclosure relates to semiconductor structures and, more particularly, to structures with thinned dielectric material and methods of manufacture. The method includes depositing a high-k dielectric on a substrate. The method further includes depositing a titanium nitride film directly on the high-k while simultaneously etching the high-k dielectric.
    Type: Application
    Filed: March 31, 2017
    Publication date: July 20, 2017
    Inventors: Ruqiang BAO, Takashi ANDO, Aritra DASGUPTA, Kai ZHAO, Unoh KWON, Siddarth A. KRISHNAN