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    Modeling of epoxy dispensing process using a hybrid fuzzy regression approach

    185726_185726.pdf (446.3Kb)
    Access Status
    Open access
    Authors
    Chan, Kit Yan
    Kwong, C.
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Chan, Kit and Kwong, Che. 2012. Modeling of epoxy dispensing process using a hybrid fuzzy regression approach. The International Journal of Advanced Manufacturing Technology. 65 (1-4): pp. 589-600.
    Source Title
    International Journal of Advanced Manufacturing Technology
    DOI
    10.1007/s00170-012-4202-4
    ISSN
    0268-3768
    School
    Department of Electrical and Computer Engineering
    Remarks

    The final publication is available at http://www.springerlink.com

    URI
    http://hdl.handle.net/20.500.11937/8392
    Collection
    • Curtin Research Publications
    Abstract

    In the semiconductor manufacturing industry, epoxy dispensing is a popular process commonly used in die bonding as well as in microchip encapsulation for electronic packaging. Modeling the epoxy dispensing process is important because it enables us to understand the process behavior, as well as determine the optimum operating conditions of the process for a high yield, low cost, and robust operation. Previous studies of epoxy dispensing have mainly focused on the development of analytical models. However, an analytical model for epoxy dispensing is difficult to develop because of its complex behavior and high degree of uncertainty associated with the process in a real-world environment. Previous studies of modeling the epoxy dispensing process have not addressed the development of explicit models involving high-order and interaction terms, as well as fuzziness between process parameters. In this paper, a hybrid fuzzy regression (HFR) method integrating fuzzy regression with genetic programming is proposed to make up the deficiency. Two process models are generated for the two quality characteristics of the process, encapsulation weight and encapsulation thickness based on the HFR, respectively. Validation tests are performed. The performance of the models developed based on the HFR outperforms the performance of those based on statistical regression and fuzzy regression.

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