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A fast algorithm for detecting die extrusion defects in IC packages

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Abstract.

In this paper, we present a fast method for the detection of die extrusion defects in IC packages. The optical and lighting set-up as well as the details of the algorithm used for the isolation and detection of die extrusion defects are presented. Our algorithm basically involves the use of optimal filters for the detection of linear features and other feature enhancement techniques. This paper also addresses implementation issues including speed, effectiveness, and robustness.

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Authors and Affiliations

  1. Department of Electrical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260 , , , , , , SG

    H. Zhou, A.A. Kassim & S. Ranganath

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  1. H. Zhou
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  2. A.A. Kassim
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  3. S. Ranganath
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Received: 10 April 1997 / Accepted: 15 January 1998

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Zhou, H., Kassim, A. & Ranganath, S. A fast algorithm for detecting die extrusion defects in IC packages. Machine Vision and Applications 11, 37–41 (1998). https://doi.org/10.1007/s001380050088

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  • DOI: https://doi.org/10.1007/s001380050088

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