Patents by Inventor Suresh Uppal

Suresh Uppal 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: 10181713
    Abstract: At least one method, apparatus and system disclosed herein involves providing an integrated circuit device comprising a protection circuit. And integrated circuit device is formed. A protection component is formed in parallel to the integrated circuit device. The protection component is configured for protecting the integrated circuit device from a portion of a charge. A circuit break device in series to the protection component, wherein the protection component and the circuit break device are in parallel to the integrated circuit device. The circuit break device is configured to break an electrical path of the protection component for electrically terminating the protection component based upon a current signal.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: January 15, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Arnaud Bousquet, Geetha Sai Aluri, Suresh Uppal
  • Patent number: 10147496
    Abstract: At least one method, apparatus and system disclosed involves hard-coding data into an integrated circuit device. An integrated circuit device provided. Data for hard-wiring information into a portion of the integrated circuit device is received. A stress voltage signal is provided to a portion of a transistor of the integrated circuit device for causing a dielectric breakdown of the portion of the transistor for hard-wiring the data.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: December 4, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Suresh Uppal, Min-hwa Chi
  • Patent number: 10106892
    Abstract: Methods of forming conformal low temperature gate oxides on a HV I/O and a core logic and the resulting devices are provided. Embodiments include providing a HV I/O and core logic laterally separated on a Si substrate, each having a fin; forming a gate oxide layer over each fin and the Si substrate; forming a silicon oxy-nitride layer over the gate oxide layer; forming a sacrificial oxide layer over the silicon oxy-nitride layer; removing the sacrificial oxide and silicon oxy-nitride layers and thinning the gate oxide layer; forming a second gate oxide layer over the thinned gate oxide layer; forming a silicon oxy-nitride layer over the second gate oxide layer; removing the silicon oxy-nitride and second gate oxide layers over the core logic fin portion; forming an IL over the core logic fin portion; and forming a HfOx layer over the second silicon oxy-nitride layer and ILs.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 23, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Shahab Siddiqui, Abu Naser Zainuddin, Beth Baumert, Suresh Uppal
  • Patent number: 10054630
    Abstract: At least one method and system involves performing a time-dependent dielectric breakdown (TDDB) test and a bias temperature instability (BTI) test on a device. A device having at least one transistor and at least one dielectric layer is provided. A test signal is provided for performing a TDDB test and a BTI test on the device. The TDDB test and the BTI test are performed substantially simultaneously on the device based upon the test signal. The data relating to a breakdown of the dielectric layer and at least one characteristic of the transistor based upon the TDDB test and the BTI test is acquired, stored, and/or transmitted.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: August 21, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Suresh Uppal, Andreas Kerber, William McMahon
  • Patent number: 10012687
    Abstract: At least one method and system disclosed herein involves performing a time-dependent dielectric breakdown (TDDB) on a plurality of devices. A first device and a second device are provided for testing. A test signal is provided for performing a time-dependent dielectric breakdown (TDDB) test on the first and second devices. A selection signal for selecting said first and second devices for performing said TDDB test. The first and second devices are arranged in series with a first resistor such that based upon said selecting, the test signal is applied substantially simultaneously to the first and second devices through the first resistor. A determination is made as to whether a breakdown and/or a failure of at least one of the first and second devices has occurred based upon a change in voltage across the first resistor.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: July 3, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventor: Suresh Uppal
  • Publication number: 20180151238
    Abstract: At least one method, apparatus and system disclosed involves hard-coding data into an integrated circuit device. An integrated circuit device provided. Data for hard-wiring information into a portion of the integrated circuit device is received. A stress voltage signal is provided to a portion of a transistor of the integrated circuit device for causing a dielectric breakdown of the portion of the transistor for hard-wiring the data.
    Type: Application
    Filed: January 26, 2018
    Publication date: May 31, 2018
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Suresh Uppal, Min-hwa Chi
  • Patent number: 9916903
    Abstract: At least one method, apparatus and system disclosed involves hard-coding data into an integrated circuit device. An integrated circuit device provided. Data for hard-wiring information into a portion of the integrated circuit device is received. A stress voltage signal is provided to a portion of a transistor of the integrated circuit device for causing a dielectric breakdown of the portion of the transistor for hard-wiring the data.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: March 13, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Suresh Uppal, Min-hwa Chi
  • Publication number: 20170292986
    Abstract: At least one method and system disclosed herein involves performing a time-dependent dielectric breakdown (TDDB) test and a bias temperature instability (BTI) test on a device. A device having at least one transistor and at least one dielectric layer is provided. A test signal is provided for performing a TDDB test and a BTI test on the device. The TDDB test and the BTI test are performed substantially simultaneously on the device based upon the test signal. The data relating to a breakdown of the dielectric layer and at least one characteristic of the transistor based upon the TDDB test and the BTI test is acquired, stored, and/or transmitted.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 12, 2017
    Applicant: GLOBALFOUNDRIES, INC.
    Inventors: Suresh Uppal, Andreas Kerber, William McMahon
  • Patent number: 9702926
    Abstract: At least one method and system disclosed herein involves performing a time-dependent dielectric breakdown (TDDB) test and a bias temperature instability (BTI) test on a device. A device having at least one transistor and at least one dielectric layer is provided. A test signal is provided for performing a TDDB test and a BTI test on the device. The TDDB test and the BTI test are performed substantially simultaneously on the device based upon the test signal. The data relating to a breakdown of the dielectric layer and at least one characteristic of the transistor based upon the TDDB test and the BTI test is acquired, stored, and/or transmitted.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: July 11, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Suresh Uppal, Andreas Kerber, William McMahon
  • Patent number: 9599656
    Abstract: At least one method and system disclosed herein involves testing of integrated circuits. A device having at least one transistor and at least one dielectric layer is provided. A first voltage is provided during a first time period for performing a stress test upon the device. A second voltage is provided during a second time period for discharging at least a portion of the charge built-up as a result of the first voltage. The second voltage is of an opposite polarity of the first voltage. A sense function is provided during a third time period for determining a result of the stress test. Data relating to a breakdown of the dielectric layer based upon the result of the stress test is acquired, stored and/or transmitted.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: March 21, 2017
    Assignees: GLOBALFOUNDRIES INC., INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Suresh Uppal, Andreas Kerber, William McMahon, Eduard A. Cartier
  • Patent number: 9500703
    Abstract: There is set forth herein a semiconductor structure including a plurality of test devices, the plurality of test devices including a first test device and a second test device. A semiconductor structure can also include a waveform generating circuit, the waveform generating circuit configured for application of a first stress signal waveform having a first duty cycle to the first test device, and a second stress signal waveform having a second duty cycle to the second test device. A semiconductor structure can include a selection circuit associated with each of the first test device and the second test device for switching between a stress cycle and a sensing cycle.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: November 22, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Anil Kumar, Suresh Uppal, Manjunatha Prabhu, William McMahon
  • Patent number: 9460806
    Abstract: A method of forming an OTPROM capable of storing twice the number of bits as a conventional OTPROM without increasing the overall size of the device is provided. Embodiments include forming a OTPROM, the OTPROM array having a plurality of formed devices; receiving a binary code to program the OTPROM array; separating the binary code into a first part and a second part; programming each device with one of four data storage states by: forming a gate oxide layer of each device to a thickness corresponding to the first part of the binary code, and selectively applying a TDDB stress to the gate oxide layer corresponding to the second part of the binary code; detecting a Idsat level discharged by each device with a multi-bit sense amplifier; and reading the state of each device based on the detected Idsat level.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: October 4, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Suresh Uppal
  • Publication number: 20160204098
    Abstract: At least one method, apparatus and system disclosed herein involves forming a device comprising a transistor comprising an active gate and at least one inactive gate in parallel to the active gate. A source region on a substrate is formed. An active gate region is formed on the substrate adjacent the source region. A drain region is formed on the substrate adjacent the active gate region. A first inactive gate region is formed on the substrate in parallel to the active gate region. The source region, the drain region, the active gate region, and the first inactive gate region comprise the transistor. The first inactive gate region is capable of dissipating the at least a portion of a charge.
    Type: Application
    Filed: March 24, 2016
    Publication date: July 14, 2016
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Andreas Kerber, Suresh Uppal, Salvatore Cimino, Hao Jiang
  • Patent number: 9372226
    Abstract: Wafer test structures and methods of providing wafer test structures are described. The methods include: fabricating multiple test devices and multiple fuse devices on the wafer, each test device having a respective fuse device associated therewith, which open circuits upon failure of the test device; and fabricating a selection circuit operative to selectively connect one test device to a sense contact pad, and the other test devices to a stress contact pad. The selection circuit facilitates sensing one or more electrical signals of the one test device by electrical contact with the sense contact pad, while stress testing the other test devices by electrical contact with the stress contact pad. In one embodiment, each test device has respective first and second switch devices, operative to selectively electrically connect the test device to the sense or stress contact pads. In another embodiment, the method includes wafer testing using the test structure.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: June 21, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Suresh Uppal, Randy W. Mann, William McMahon
  • Publication number: 20160163398
    Abstract: A method of forming an OTPROM capable of storing twice the number of bits as a conventional OTPROM without increasing the overall size of the device is provided. Embodiments include forming a OTPROM, the OTPROM array having a plurality of formed devices; receiving a binary code to program the OTPROM array; separating the binary code into a first part and a second part; programming each device with one of four data storage states by: forming a gate oxide layer of each device to a thickness corresponding to the first part of the binary code, and selectively applying a TDDB stress to the gate oxide layer corresponding to the second part of the binary code; detecting a Idsat level discharged by each device with a multi-bit sense amplifier; and reading the state of each device based on the detected Idsat level.
    Type: Application
    Filed: April 7, 2015
    Publication date: June 9, 2016
    Inventors: Akhilesh GAUTAM, Suresh UPPAL
  • Publication number: 20160146879
    Abstract: At least one method and system disclosed herein involves testing of integrated circuits. A device having at least one transistor and at least one dielectric layer is provided. A first voltage is provided during a first time period for performing a stress test upon the device. A second voltage is provided during a second time period for discharging at least a portion of the charge built-up as a result of the first voltage. The second voltage is of an opposite polarity of the first voltage. A sense function is provided during a third time period for determining a result of the stress test. Data relating to a breakdown of the dielectric layer based upon the result of the stress test is acquired, stored and/or transmitted.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 26, 2016
    Applicants: GLOBAL FOUNDRIES INC., International Business Machines Corporation
    Inventors: Suresh Uppal, Andreas Kerber, William McMahon, Eduard A. Cartier
  • Patent number: 9324822
    Abstract: At least one method, apparatus and system disclosed herein involves forming a device comprising a transistor comprising an active gate and at least one inactive gate in parallel to the active gate. A source region on a substrate is formed. An active gate region is formed on the substrate adjacent the source region. A drain region is formed on the substrate adjacent the active gate region. A first inactive gate region is formed on the substrate in parallel to the active gate region. The source region, the drain region, the active gate region, and the first inactive gate region comprise the transistor. The first inactive gate region is capable of dissipating the at least a portion of a charge.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: April 26, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Andreas Kerber, Suresh Uppal, Salvatore Cimino, Hao Jiang
  • Publication number: 20160111867
    Abstract: At least one method, apparatus and system disclosed herein involves providing an integrated circuit device comprising a protection circuit. And integrated circuit device is formed. A protection component is formed in parallel to the integrated circuit device. The protection component is configured for protecting the integrated circuit device from a portion of a charge. A circuit break device in series to the protection component, wherein the protection component and the circuit break device are in parallel to the integrated circuit device. The circuit break device is configured to break an electrical path of the protection component for electrically terminating the protection component based upon a current signal.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 21, 2016
    Inventors: Arnaud Bousquet, Geetha Sai Aluri, Suresh Uppal
  • Publication number: 20160104541
    Abstract: At least one method, apparatus and system disclosed involves hard-coding data into an integrated circuit device. An integrated circuit device provided. Data for hard-wiring information into a portion of the integrated circuit device is received. A stress voltage signal is provided to a portion of a transistor of the integrated circuit device for causing a dielectric breakdown of the portion of the transistor for hard-wiring the data.
    Type: Application
    Filed: October 14, 2014
    Publication date: April 14, 2016
    Inventors: Akhilesh Gautam, Suresh Uppal, Min-hwa Chi
  • Publication number: 20160061880
    Abstract: At least one method and system disclosed herein involves performing a time-dependent dielectric breakdown (TDDB) on a plurality of devices. A first device and a second device are provided for testing. A test signal is provided for performing a time-dependent dielectric breakdown (TDDB) test on the first and second devices. A selection signal for selecting said first and second devices for performing said TDDB test. The first and second devices are arranged in series with a first resistor such that based upon said selecting, the test signal is applied substantially simultaneously to the first and second devices through the first resistor. A determination is made as to whether a breakdown and/or a failure of at least one of the first and second devices has occurred based upon a change in voltage across the first resistor.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 3, 2016
    Inventor: Suresh Uppal