Early Diagnosis and Prediction of Wafer Quality Using Machine Learning on sub-10nm Logic Technology

Heung Kook Ko, Sena Park, Jihyun Ryu, Sung Ryul Kim, Giwon Lee, Dongjoon Lee, Sangwoo Pae, Euncheol Lee, Yongsun Ji, Hia Jiang, Tae Young Jeong, Taiki Uemura, Dongkyun Kwon, Hyungrok Do, Hyungu Kahng, Yoon Sang Cho, Jiyoon Lee, Seoung Bum Kim

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This paper proposes to use machine learning (ML) methods to predict wafer quality using Fab inline measured items, DC measurements, and DVS (Dynamic Voltage Stress) at wafer sort. With developed ML approach, the predicted accuracy is more than 80% in 8 nm products used in this study. We believe this method can be further fine-tuned to help enable ICs at the high level expected for automotive systems. By assigning predictive rankings, the method also helps enable best tooling system for higher quality.

    Original languageEnglish
    Title of host publication2020 IEEE International Reliability Physics Symposium, IRPS 2020 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781728131993
    DOIs
    Publication statusPublished - 2020 Apr
    Event2020 IEEE International Reliability Physics Symposium, IRPS 2020 - Virtual, Online, United States
    Duration: 2020 Apr 282020 May 30

    Publication series

    NameIEEE International Reliability Physics Symposium Proceedings
    Volume2020-April
    ISSN (Print)1541-7026

    Conference

    Conference2020 IEEE International Reliability Physics Symposium, IRPS 2020
    Country/TerritoryUnited States
    CityVirtual, Online
    Period20/4/2820/5/30

    Bibliographical note

    Publisher Copyright:
    © 2020 IEEE.

    Keywords

    • Gradient Boosting
    • Machine Learning
    • Mice
    • Risk Prediction

    ASJC Scopus subject areas

    • General Engineering

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