Patents by Inventor Emmanuel Yashchin
Emmanuel Yashchin 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).
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Publication number: 20230048378Abstract: Methods and systems to provide a form of probabilistic labeling to associate an outage with a disturbance, which could itself be either known based on the available data or unknown. In the latter case, labeling is especially challenging, as it necessitates the discovery of the disturbance. One approach incorporates a statistical change-point analysis to time-series events that correspond to service tickets in the relevant geographic sub-regions. The method is calibrated to separate the regular periods from the environmental disturbance periods, under the assumption that disturbances significantly increase the rate of loss-causing events. To obtain the probability that a given loss-causing event is related to an environmental disturbance, the method leverages the difference between the rate of events expected in the absence of any disturbances (baseline) and the rate of actually observed events. In the analysis, the local disturbances are identified and estimators of their duration and magnitude are provided.Type: ApplicationFiled: August 12, 2021Publication date: February 16, 2023Inventors: Emmanuel Yashchin, Nianjun Zhou, Anuradha Bhamidipaty, Dhavalkumar C. Patel, Arun Kwangil Iyengar, Shrey Shrivastava
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Patent number: 11105856Abstract: Methods and systems of detecting chip degradation are described. A processor may execute a test on a device at a first time, where the test includes executable instructions for the device to execute a task under specific conditions relating to a performance attribute. The processor may receive performance data indicating a set of outcomes from the task executed by the device during the test. The processor may determine a first value of a parameter of the performance attribute based on the identified subset. The processor may compare the first value with a second value of the parameter of the performance attribute. The second value is based on an execution of the test on the device at a second time. The processor may determine a degradation status of the device based on the comparison of the first value with the second value.Type: GrantFiled: November 13, 2018Date of Patent: August 31, 2021Assignee: International Business Machines CorporationInventors: Emily A. Ray, Emmanuel Yashchin, Peilin Song, Kevin G. Stawiasz, Barry Linder, Alan Weger, Keith A. Jenkins, Raphael P. Robertazzi, Franco Stellari, James Stathis
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Patent number: 11054459Abstract: A per-chip equivalent oxide thickness (EOT) circuit sensor resides in an integrated circuit. The per-chip EOT circuit sensor determines electrical characteristics of the integrated circuit. The measured electrical characteristics include leakage current. The determined electrical characteristics are used to determine physical attributes of the integrated circuit. The physical attributes, including EOT, are used in a reliability model to predict per-chip failure rate.Type: GrantFiled: November 7, 2019Date of Patent: July 6, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Carole D. Graas, Nazmul Habib, Deborah M. Massey, John G. Massey, Pascal A. Nsame, Ernest Y. Wu, Emmanuel Yashchin
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Patent number: 10996259Abstract: A per-chip equivalent oxide thickness (EOT) circuit sensor resides in an integrated circuit. The per-chip EOT circuit sensor determines electrical characteristics of the integrated circuit. The measured electrical characteristics include leakage current. The determined electrical characteristics are used to determine physical attributes of the integrated circuit. The physical attributes, including EOT, are used in a reliability model to predict per-chip failure rate.Type: GrantFiled: January 3, 2020Date of Patent: May 4, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Carole D. Graas, Nazmul Habib, Deborah M. Massey, John G. Massey, Pascal A. Nsame, Ernest Y. Wu, Emmanuel Yashchin
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Patent number: 10989754Abstract: A per-chip equivalent oxide thickness (EOT) circuit sensor resides in an integrated circuit. The per-chip EOT circuit sensor determines electrical characteristics of the integrated circuit. The measured electrical characteristics include leakage current. The determined electrical characteristics are used to determine physical attributes of the integrated circuit. The physical attributes, including EOT, are used in a reliability model to predict per-chip failure rate.Type: GrantFiled: November 16, 2017Date of Patent: April 27, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Carole D. Graas, Nazmul Habib, Deborah M. Massey, John G. Massey, Pascal A. Nsame, Ernest Y. Wu, Emmanuel Yashchin
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Publication number: 20200150181Abstract: Methods and systems of detecting chip degradation are described. A processor may execute a test on a device at a first time, where the test includes executable instructions for the device to execute a task under specific conditions relating to a performance attribute. The processor may receive performance data indicating a set of outcomes from the task executed by the device during the test. The processor may determine a first value of a parameter of the performance attribute based on the identified subset. The processor may compare the first value with a second value of the parameter of the performance attribute. The second value is based on an execution of the test on the device at a second time. The processor may determine a degradation status of the device based on the comparison of the first value with the second value.Type: ApplicationFiled: November 13, 2018Publication date: May 14, 2020Inventors: Emily A. Ray, Emmanuel Yashchin, Peilin Song, Kevin G. Stawiasz, Barry Linder, Alan Weger, Keith A. Jenkins, Raphael P. Robertazzi, Franco Stellari, James Stathis
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Publication number: 20200141996Abstract: A per-chip equivalent oxide thickness (EOT) circuit sensor resides in an integrated circuit. The per-chip EOT circuit sensor determines electrical characteristics of the integrated circuit. The measured electrical characteristics include leakage current. The determined electrical characteristics are used to determine physical attributes of the integrated circuit. The physical attributes, including EOT, are used in a reliability model to predict per-chip failure rate.Type: ApplicationFiled: January 3, 2020Publication date: May 7, 2020Inventors: Carole D. Graas, Nazmul Habib, Deborah M. Massey, John G. Massey, Pascal A. Nsame, Ernest Y. Wu, Emmanuel Yashchin
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Patent number: 10644982Abstract: A computer-implemented method includes receiving a plurality of values of a data stream, where the plurality of values are generated by a monitored device and received in real time. One or more statistical moments of the data stream are updated, by a computer processing device, based on each value of the plurality of values. Each value of the plurality of values is discarded, after updating the one or more statistical moments of the data stream based on that value. A threshold is set for the data stream based on the one or more statistical moments. It is detected that the threshold has been passed by the data stream. A remedial action is performed on the monitored device, responsive to the threshold being passed, where the remedial action is associated with the threshold.Type: GrantFiled: September 20, 2018Date of Patent: May 5, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Donnie Haye, Eric V. Kline, Jeffrey G. Komatsu, Anthony C. Spielberg, Benjamin J. Steele, Jr., John M. Wargo, Emmanuel Yashchin, Paul A. Zulpa
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Publication number: 20200072897Abstract: A per-chip equivalent oxide thickness (EOT) circuit sensor resides in an integrated circuit. The per-chip EOT circuit sensor determines electrical characteristics of the integrated circuit. The measured electrical characteristics include leakage current. The determined electrical characteristics are used to determine physical attributes of the integrated circuit. The physical attributes, including EOT, are used in a reliability model to predict per-chip failure rate.Type: ApplicationFiled: November 7, 2019Publication date: March 5, 2020Inventors: Carole D. Graas, Nazmul Habib, Deborah M. Massey, John G. Massey, Pascal A. Nsame, Ernest Y. Wu, Emmanuel Yashchin
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Patent number: 10564214Abstract: A per-chip equivalent oxide thickness (EOT) circuit sensor resides in an integrated circuit. The per-chip EOT circuit sensor determines electrical characteristics of the integrated circuit. The measured electrical characteristics include leakage current. The determined electrical characteristics are used to determine physical attributes of the integrated circuit. The physical attributes, including EOT, are used in a reliability model to predict per-chip failure rate.Type: GrantFiled: June 22, 2017Date of Patent: February 18, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Carole D. Graas, Nazmul Habib, Deborah M. Massey, John G. Massey, Pascal A. Nsame, Ernest Y. Wu, Emmanuel Yashchin
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Patent number: 10552278Abstract: A method and system are provided for chip testing. The method includes selectively deploying a chip for future use or discarding the chip to prevent the future use, responsive to a stress history of the chip determined using a non-destructive test procedure. The test procedure includes ordering each of a plurality of functional patterns by a respective minimum operating period corresponding thereto. The test procedure further includes ranking each of the plurality of patterns based on at least one preceding available pattern to provide a plurality of pattern ranks. The test procedure also includes calculating a sum by summing the plurality of pattern ranks. The sum calculated during an initial performance of the test procedure is designated as a baseline, and the sum calculated during a subsequent performance of the test procedure is compared to a threshold derived from the baseline to determine the stress history of the chip.Type: GrantFiled: July 13, 2018Date of Patent: February 4, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Keith A. Jenkins, Barry P. Linder, Emily A. Ray, Raphael P. Robertazzi, Peilin Song, James H. Stathis, Kevin G. Stawiasz, Franco Stellari, Alan J. Weger, Emmanuel Yashchin
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Publication number: 20190036805Abstract: A computer-implemented method includes receiving a plurality of values of a data stream, where the plurality of values are generated by a monitored device and received in real time. One or more statistical moments of the data stream are updated, by a computer processing device, based on each value of the plurality of values. Each value of the plurality of values is discarded, after updating the one or more statistical moments of the data stream based on that value. A threshold is set for the data stream based on the one or more statistical moments. It is detected that the threshold has been passed by the data stream. A remedial action is performed on the monitored device, responsive to the threshold being passed, where the remedial action is associated with the threshold.Type: ApplicationFiled: September 20, 2018Publication date: January 31, 2019Inventors: Donnie Haye, Eric V. Kline, Jeffrey G. Komatsu, Anthony C. Spielberg, Benjamin J. Steele, JR., John M. Wargo, Emmanuel Yashchin, Paul A. Zulpa
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Patent number: 10171334Abstract: A computer-implemented method includes receiving a plurality of values of a data stream, where the plurality of values are generated by a monitored device and received in real time. One or more statistical moments of the data stream are updated, by a computer processing device, based on each value of the plurality of values. Each value of the plurality of values is discarded, after updating the one or more statistical moments of the data stream based on that value. A threshold is set for the data stream based on the one or more statistical moments. It is detected that the threshold has been passed by the data stream. A remedial action is performed on the monitored device, responsive to the threshold being passed, where the remedial action is associated with the threshold.Type: GrantFiled: June 30, 2016Date of Patent: January 1, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Donnie Haye, Eric V. Kline, Jeffrey G. Komatsu, Anthony C. Spielberg, Benjamin J. Steele, Jr., John M. Wargo, Emmanuel Yashchin, Paul A. Zulpa
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Publication number: 20180322025Abstract: A method and system are provided for chip testing. The method includes selectively deploying a chip for future use or discarding the chip to prevent the future use, responsive to a stress history of the chip determined using a non-destructive test procedure. The test procedure includes ordering each of a plurality of functional patterns by a respective minimum operating period corresponding thereto. The test procedure further includes ranking each of the plurality of patterns based on at least one preceding available pattern to provide a plurality of pattern ranks. The test procedure also includes calculating a sum by summing the plurality of pattern ranks. The sum calculated during an initial performance of the test procedure is designated as a baseline, and the sum calculated during a subsequent performance of the test procedure is compared to a threshold derived from the baseline to determine the stress history of the chip.Type: ApplicationFiled: July 13, 2018Publication date: November 8, 2018Inventors: Keith A. Jenkins, Barry P. Linder, Emily A. Ray, Raphael P. Robertazzi, Peilin Song, James H. Stathis, Kevin G. Stawiasz, Franco Stellari, Alan J. Weger, Emmanuel Yashchin
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Patent number: 10102090Abstract: A method and system are provided for chip testing. The method includes ascertaining a baseline for a functioning chip with no stress history by performing a non-destructive test procedure on the functioning chip. The method further includes repeating the test procedure on a chip under test using a threshold derived from the baseline as a reference point to determine a stress history of the chip under test. The test procedure includes ordering each of a plurality of functional patterns by a respective minimum operating period corresponding thereto, ranking each pattern based on at least one preceding available pattern to provide a plurality of pattern ranks, and calculating a sum by summing the pattern ranks. The sum calculated by the ascertaining step is designated as the baseline, and the sum calculated by the repeating step is compared to the threshold to determine the stress history of the chip under test.Type: GrantFiled: May 16, 2016Date of Patent: October 16, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Keith A. Jenkins, Barry P. Linder, Emily A. Ray, Raphael P. Robertazzi, Peilin Song, James H. Stathis, Kevin G. Stawiasz, Franco Stellari, Alan J. Weger, Emmanuel Yashchin
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Patent number: 9985615Abstract: An on-chip true noise generator including an embedded noise source with a low-voltage, high-noise zener diode(s), and an in-situ close-loop zener diode power control circuit. The present invention proposes the use of heavily doped polysilicon and silicon p-n diode(s) structures to minimize the breakdown voltage, increasing noise level and improving reliability. The present invention also proposes an in-situ close-loop zener diode control circuit to safe-guard the zener diode from catastrophic burn-out.Type: GrantFiled: February 1, 2017Date of Patent: May 29, 2018Assignee: International Business Machines CorporationInventors: Kai D. Feng, Ping-Chuan Wang, Zhijian Yang, Emmanuel Yashchin
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Publication number: 20180074114Abstract: A per-chip equivalent oxide thickness (EOT) circuit sensor resides in an integrated circuit. The per-chip EOT circuit sensor determines electrical characteristics of the integrated circuit. The measured electrical characteristics include leakage current. The determined electrical characteristics are used to determine physical attributes of the integrated circuit. The physical attributes, including EOT, are used in a reliability model to predict per-chip failure rate.Type: ApplicationFiled: November 16, 2017Publication date: March 15, 2018Inventors: Carole D. Graas, Nazmul Habib, Deborah M. Massey, John G. Massey, Pascal A. Nsame, Ernest Y. Wu, Emmanuel Yashchin
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Publication number: 20180006924Abstract: A computer-implemented method includes receiving a plurality of values of a data stream, where the plurality of values are generated by a monitored device and received in real time. One or more statistical moments of the data stream are updated, by a computer processing device, based on each value of the plurality of values. Each value of the plurality of values is discarded, after updating the one or more statistical moments of the data stream based on that value. A threshold is set for the data stream based on the one or more statistical moments. It is detected that the threshold has been passed by the data stream. A remedial action is performed on the monitored device, responsive to the threshold being passed, where the remedial action is associated with the threshold.Type: ApplicationFiled: June 30, 2016Publication date: January 4, 2018Inventors: Donnie Haye, Eric V. Kline, Jeffrey G. Komatsu, Anthony C. Spielberg, Benjamin J. Steele, JR., John M. Wargo, Emmanuel Yashchin, Paul A. Zulpa
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Publication number: 20170329685Abstract: A method and system are provided for chip testing. The method includes ascertaining a baseline for a functioning chip with no stress history by performing a non-destructive test procedure on the functioning chip. The method further includes repeating the test procedure on a chip under test using a threshold derived from the baseline as a reference point to determine a stress history of the chip under test. The test procedure includes ordering each of a plurality of functional patterns by a respective minimum operating period corresponding thereto, ranking each pattern based on at least one preceding available pattern to provide a plurality of pattern ranks, and calculating a sum by summing the pattern ranks. The sum calculated by the ascertaining step is designated as the baseline, and the sum calculated by the repeating step is compared to the threshold to determine the stress history of the chip under test.Type: ApplicationFiled: May 16, 2016Publication date: November 16, 2017Inventors: Keith A. Jenkins, Barry P. Linder, Emily A. Ray, Raphael P. Robertazzi, Peilin Song, James H. Stathis, Kevin G. Stawiasz, Franco Stellari, Alan J. Weger, Emmanuel Yashchin
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Publication number: 20170285094Abstract: A per-chip equivalent oxide thickness (EOT) circuit sensor resides in an integrated circuit. The per-chip EOT circuit sensor determines electrical characteristics of the integrated circuit. The measured electrical characteristics include leakage current. The determined electrical characteristics are used to determine physical attributes of the integrated circuit. The physical attributes, including EOT, are used in a reliability model to predict per-chip failure rate.Type: ApplicationFiled: June 22, 2017Publication date: October 5, 2017Inventors: Carole D. Graas, Nazmul Habib, Deborah M. Massey, John G. Massey, Pascal A. Nsame, Ernest Y. Wu, Emmanuel Yashchin