Patents by Inventor William McMahon

William McMahon 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: 20210222245
    Abstract: The present disclosure relates to the identification of a subject that is affected with, or predisposed to, autism or to one or more autism spectrum disorders (ASD). The present disclosure includes methods related to the association of certain genetic markers with autism and/or ASD. More particularly, the present disclosure is related to methods and diagnostic tests for diagnosing or predicting ASD in an individual.
    Type: Application
    Filed: November 16, 2020
    Publication date: July 22, 2021
    Inventors: Mark Leppert, William McMahon, Nori Matsunami, Michael S. Paul, Alex S. Lindell
  • Publication number: 20210054457
    Abstract: The present disclosure relates to the identification of a subject that is affected with, or predisposed to, autism or to one or more autism spectrum disorders (ASD). The present disclosure includes methods related to the association of certain genetic markers with autism and/or ASD. More particularly, the present disclosure is related to methods and diagnostic tests for diagnosing or predicting ASD in an individual.
    Type: Application
    Filed: March 20, 2020
    Publication date: February 25, 2021
    Inventors: Mark Leppert, William McMahon, Nori Matsunami, Michael S. Paul, Alex S. Lindell
  • Patent number: 10068660
    Abstract: We disclose methods, apparatus, and systems for improving semiconductor device writeability through bias temperature instability. Such a device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line comprises a supply voltage line (VCS) which supplies voltage to each latch of a first number of cells; an array VCS driver electrically connected to each VCS; and a control line configured to provide an operational array supply voltage, a first array supply voltage, or a second array supply voltage to each VCS through the array VCS driver.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: September 4, 2018
    Assignee: GLOBALFOUNDRIES, INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • 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: 9916212
    Abstract: Method, apparatus, and system for improving semiconductor device writeability at row/bit level through bias temperature instability. Such a device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line comprises a supply voltage line (VCS) which supplies voltage to each latch of a first number of cells; an array VCS driver electrically connected to each VCS; and a control line configured to provide an operational array supply voltage, a first array supply voltage, or a second array supply voltage to each VCS, wherein the first array supply voltage and the second array supply voltage are greater than the operational array supply voltage. By virtue of BTI, application of the first array supply voltage may lead to improved writeability of one or more cells of the device.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 13, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • 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
  • Publication number: 20170271032
    Abstract: We disclose methods, apparatus, and systems for improving semiconductor device writeability through bias temperature instability. Such a device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line comprises a supply voltage line (VCS) which supplies voltage to each latch of a first number of cells; an array VCS driver electrically connected to each VCS; and a control line configured to provide an operational array supply voltage, a first array supply voltage, or a second array supply voltage to each VCS through the array VCS driver.
    Type: Application
    Filed: June 6, 2017
    Publication date: September 21, 2017
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • Publication number: 20170242759
    Abstract: Method, apparatus, and system for improving semiconductor device writeability at row/bit level through bias temperature instability. Such a device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line comprises a supply voltage line (VCS) which supplies voltage to each latch of a first number of cells; an array VCS driver electrically connected to each VCS; and a control line configured to provide an operational array supply voltage, a first array supply voltage, or a second array supply voltage to each VCS, wherein the first array supply voltage and the second array supply voltage are greater than the operational array supply voltage. By virtue of BTI, application of the first array supply voltage may lead to improved writeability of one or more cells of the device.
    Type: Application
    Filed: February 18, 2016
    Publication date: August 24, 2017
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • Patent number: 9704600
    Abstract: We disclose methods, apparatus, and systems for improving semiconductor device writeability through bias temperature instability. Such a device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line comprises a supply voltage line (VCS) which supplies voltage to each latch of a first number of cells; an array VCS driver electrically connected to each VCS; and a control line configured to provide an operational array supply voltage, a first array supply voltage, or a second array supply voltage to each VCS through the array VCS driver.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: July 11, 2017
    Assignee: GLOBAL FOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • 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
  • Publication number: 20170166966
    Abstract: The present disclosure relates to the identification of a subject that is affected with, or predisposed to, autism or to one or more autism spectrum disorders (ASD). The present disclosure includes methods related to the association of certain genetic markers with autism and/or ASD. More particularly, the present disclosure is related to methods and diagnostic tests for diagnosing or predicting ASD in an individual.
    Type: Application
    Filed: July 15, 2016
    Publication date: June 15, 2017
    Inventors: Mark Leppert, William McMahon, Nori Matsunami, Michael S. Paul, Alex S. Lindell
  • 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: 9601188
    Abstract: We disclose methods, apparatus, and systems for improving semiconductor device yield and/or reliability through bias temperature instability (BTI). One device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line controls access to each pass gate of a first number of cells; a word line driver electrically connected to each word line; a row decoder configured to authorize or deauthorize a write voltage to each word line through the word line driver, wherein the write voltage is selected from an operational write voltage or a first write voltage; and a control line configured to provide an operational write voltage or a first write voltage to each word line authorized by the row decoder, wherein the first write voltage is greater than an operational write voltage.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 21, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • Patent number: 9601187
    Abstract: We disclose methods, apparatus, and systems for improving semiconductor device yield and/or reliability through bias temperature instability (BTI). One device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line controls access to each pass gate of a first number of cells; a word line driver electrically connected to each word line; and a control line configured to provide an operational write voltage or a first write voltage to each word line through the word line driver. By virtue of BTI, application of the first write voltage may lead to improved stability of data desired to be read from one or more cells of the device.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 21, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • Patent number: 9548136
    Abstract: A method and an apparatus for identifying non-intrinsic defect bits from a population of failing bits for failure analysis to characterize the extrinsic failure mechanisms is provided. Embodiments include performing a failure mode test on a bank of a memory array at different low VDD; determining optimal bank size to observe plateaus of fail counts; determining fail counts of the bank at each different low VDD; determining a plateau of the fail counts; determining whether the plateau represents extrinsic bits of the bank; and submitting the extrinsic bits for root cause analysis.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: January 17, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Vivek Joshi, Sriram Balasubramanian, Chad Weintraub, Yoann Mamy Randriamihaja, William McMahon
  • 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
  • Publication number: 20160284421
    Abstract: A method and an apparatus for identifying non-intrinsic defect bits from a population of failing bits for failure analysis to characterize the extrinsic failure mechanisms is provided. Embodiments include performing a failure mode test on a bank of a memory array at different low VDD; determining optimal bank size to observe plateaus of fail counts; determining fail counts of the bank at each different low VDD; determining a plateau of the fail counts; determining whether the plateau represents extrinsic bits of the bank; and submitting the extrinsic bits for root cause analysis.
    Type: Application
    Filed: March 23, 2015
    Publication date: September 29, 2016
    Inventors: Vivek JOSHI, Sriram BALASUBRAMANIAN, CHAD WEINTRAUB, Yoann Mamy RANDRIAMIHAJA, William MCMAHON
  • 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: 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
  • Publication number: 20160054383
    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: Application
    Filed: August 19, 2014
    Publication date: February 25, 2016
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Anil KUMAR, Suresh UPPAL, Manjunatha PRABHU, William MCMAHON