Patents by Inventor James Paul Di Sarro

James Paul Di Sarro 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: 20220223723
    Abstract: A lateral semiconductor controlled rectifier (SCR) includes a pwell and an nwell A plurality of p+ contact regions connect to the pwell and are spaced apart from one another by a dielectric material along a width of the pwell. There are a plurality of n+ contact regions connect to the nwell and are spaced apart from one another by dielectric material along a width of the nwell.
    Type: Application
    Filed: June 7, 2021
    Publication date: July 14, 2022
    Inventors: Karmel Kranthi Nagothu, James Paul Di Sarro, Rajkumar Sankaralingam
  • Patent number: 10359461
    Abstract: A method of protecting devices within an integrated circuit during electro-static discharge (ESD) testing using an ESD test system is provided. The method includes applying a direct current (DC) bias voltage to an input of at least one device of the integrated circuit and applying an ESD simulated signal to at least one other input of the integrated circuit. The applied ESD simulated signal is conducted along a first current path to a first ground, while a low-current signal associated with the at least one device is conducted along a second current path to the second ground. The DC bias voltage is maintained between the input of the at least one device and the second ground at a substantially constant value in response to a signal variation on the second ground that results from the applied ESD simulated signal.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: July 23, 2019
    Assignee: International Business Machines Corporation
    Inventors: Shunhua Chang, James Paul Di Sarro, Robert J. Gauthier, Jr., Nathan Jack, Souvick Mitra
  • Publication number: 20180100883
    Abstract: A method of protecting devices within an integrated circuit during electro-static discharge (ESD) testing using an ESD test system is provided. The method includes applying a direct current (DC) bias voltage to an input of at least one device of the integrated circuit and applying an ESD simulated signal to at least one other input of the integrated circuit. The applied ESD simulated signal is conducted along a first current path to a first ground, while a low-current signal associated with the at least one device is conducted along a second current path to the second ground. The DC bias voltage is maintained between the input of the at least one device and the second ground at a substantially constant value in response to a signal variation on the second ground that results from the applied ESD simulated signal.
    Type: Application
    Filed: December 7, 2017
    Publication date: April 12, 2018
    Inventors: SHUNHUA CHANG, JAMES PAUL DI SARRO, ROBERT J. GAUTHIER, JR., NATHAN JACK, SOUVICK MITRA
  • Publication number: 20180100884
    Abstract: A method of protecting devices within an integrated circuit during electro-static discharge (ESD) testing using an ESD test system is provided. The method includes applying a direct current (DC) bias voltage to an input of at least one device of the integrated circuit and applying an ESD simulated signal to at least one other input of the integrated circuit. The applied ESD simulated signal is conducted along a first current path to a first ground, while a low-current signal associated with the at least one device is conducted along a second current path to the second ground. The DC bias voltage is maintained between the input of the at least one device and the second ground at a substantially constant value in response to a signal variation on the second ground that results from the applied ESD simulated signal.
    Type: Application
    Filed: December 7, 2017
    Publication date: April 12, 2018
    Inventors: SHUNHUA CHANG, JAMES PAUL DI SARRO, ROBERT J. GAUTHIER, JR., NATHAN JACK, SOUVICK MITRA
  • Patent number: 9869708
    Abstract: A method of protecting devices within an integrated circuit during electro-static discharge (ESD) testing using an ESD test system is provided. The method includes applying a direct current (DC) bias voltage to an input of at least one device of the integrated circuit and applying an ESD simulated signal to at least one other input of the integrated circuit. The applied ESD simulated signal is conducted along a first current path to a first ground, while a low-current signal associated with the at least one device is conducted along a second current path to the second ground. The DC bias voltage is maintained between the input of the at least one device and the second ground at a substantially constant value in response to a signal variation on the second ground that results from the applied ESD simulated signal.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: January 16, 2018
    Assignee: International Business Machines Corporation
    Inventors: Shunhua Chang, James Paul Di Sarro, Robert J. Gauthier, Jr., Nathan Jack, Souvick Mitra
  • Patent number: 9435841
    Abstract: A method of protecting devices within an integrated circuit during electro-static discharge (ESD) testing using an ESD test system is provided. The method includes applying a direct current (DC) bias voltage to an input of at least one device of the integrated circuit and applying an ESD simulated signal to at least one other input of the integrated circuit. The applied ESD simulated signal is conducted along a first current path to a first ground, while a low-current signal associated with the at least one device is conducted along a second current path to the second ground. The DC bias voltage is maintained between the input of the at least one device and the second ground at a substantially constant value in response to a signal variation on the second ground that results from the applied ESD simulated signal.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: September 6, 2016
    Assignee: International Business Machines Corporation
    Inventors: Shunhua Chang, James Paul Di Sarro, Robert J. Gauthier, Jr., Nathan Jack, Souvick Mitra
  • Publication number: 20160033564
    Abstract: A method of protecting devices within an integrated circuit during electro-static discharge (ESD) testing using an ESD test system is provided. The method includes applying a direct current (DC) bias voltage to an input of at least one device of the integrated circuit and applying an ESD simulated signal to at least one other input of the integrated circuit. The applied ESD simulated signal is conducted along a first current path to a first ground, while a low-current signal associated with the at least one device is conducted along a second current path to the second ground. The DC bias voltage is maintained between the input of the at least one device and the second ground at a substantially constant value in response to a signal variation on the second ground that results from the applied ESD simulated signal.
    Type: Application
    Filed: October 14, 2015
    Publication date: February 4, 2016
    Inventors: SHUNHUA CHANG, JAMES PAUL DI SARRO, ROBERT J. GAUTHIER, JR., NATHAN JACK, SOUVICK MITRA
  • Publication number: 20130271883
    Abstract: A method of protecting devices within an integrated circuit during electro-static discharge (ESD) testing using an ESD test system is provided. The method includes applying a direct current (DC) bias voltage to an input of at least one device of the integrated circuit and applying an ESD simulated signal to at least one other input of the integrated circuit. The applied ESD simulated signal is conducted along a first current path to a first ground, while a low-current signal associated with the at least one device is conducted along a second current path to the second ground. The DC bias voltage is maintained between the input of the at least one device and the second ground at a substantially constant value in response to a signal variation on the second ground that results from the applied ESD simulated signal.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 17, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Shunhua Chang, James Paul Di Sarro, Robert J. Gauthier, JR., Nathan Jack, Souvick Mitra