Position determination of a ball grid array by automated optical inspection method

Yi Chuan Lin, Kerwin Wang

研究成果: Conference contribution

摘要

This paper introduces a novel automated optical inspection (AOI) method to measure the positions and diameters of micro-solder balls of a ball grid array (BGA). The method is focused on the refinement of optical configuration, image acquisition platform design to improve the time efficiency of AOI. We use a white LED ring as a light source. It is combined with the platform. The system can perform multiple image processing and object detection steps to locate the center of each ball. This paper also presents two methods to estimate the diameters of the balls. A dummy BGA, consists of misaligned solder balls, are assembled to a conductive substrate to evaluate the platform. Test result shows that the platform is capable of performing continuous image acquisition of a 15fps, 640 × 480, 8-bite grayscale video.

原文English
主出版物標題9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014
發行者Institute of Electrical and Electronics Engineers Inc.
頁面97-101
頁數5
ISBN(電子)9781479947270
DOIs
出版狀態Published - 2014 一月 1
事件9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014 - Waikiki Beach, United States
持續時間: 2014 四月 132014 四月 16

Other

Other9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014
國家United States
城市Waikiki Beach
期間14-04-1314-04-16

指紋

Ball grid arrays
Image acquisition
Soldering alloys
Inspection
Light emitting diodes
Light sources
Image processing
Substrates
Object detection

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

引用此文

Lin, Y. C., & Wang, K. (2014). Position determination of a ball grid array by automated optical inspection method. 於 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014 (頁 97-101). [6908768] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NEMS.2014.6908768
Lin, Yi Chuan ; Wang, Kerwin. / Position determination of a ball grid array by automated optical inspection method. 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. 頁 97-101
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Lin, YC & Wang, K 2014, Position determination of a ball grid array by automated optical inspection method. 於 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014., 6908768, Institute of Electrical and Electronics Engineers Inc., 頁 97-101, 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014, Waikiki Beach, United States, 14-04-13. https://doi.org/10.1109/NEMS.2014.6908768

Position determination of a ball grid array by automated optical inspection method. / Lin, Yi Chuan; Wang, Kerwin.

9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 97-101 6908768.

研究成果: Conference contribution

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Lin YC, Wang K. Position determination of a ball grid array by automated optical inspection method. 於 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 97-101. 6908768 https://doi.org/10.1109/NEMS.2014.6908768