Paper Title:
A Vision Alignment Method Based on Improved Genetic Algorithm for IC Packaging
  Abstract

In order to improve the speed and accuracy of vision alignment for IC packaging, genetic algorithm and Otsu method are applied to vision alignment. According to the features of the image in IC packaging, an improved self-adaptive genetic algorithm combined with Otsu method is proposed in this paper, and the moment invariants method is used to carry out the remaining steps of vision alignment. Finally, experiments are undertaken by using a kind of IC chip, results show that the positioning error is less than 2μm, and the positioning time is less than 60ms.

  Info
Periodical
Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Pages
4177-4181
DOI
10.4028/www.scientific.net/AMR.189-193.4177
Citation
S. W. Liu, J. L. Li, X. Y. Zhao, D. W. Zhang, "A Vision Alignment Method Based on Improved Genetic Algorithm for IC Packaging", Advanced Materials Research, Vols. 189-193, pp. 4177-4181, 2011
Online since
February 2011
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$32.00
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