Design and characterization of a vision-assisted system for surface-mount component placement

S. Hossein Cheraghi, E. Amine Lehtihet, Pius J. Egbelu

Research output: Contribution to journalArticlepeer-review


The accurate placement of surface-mount components on their respective pads is an important problem in surface-mount technology. As the lead/pad pitch size decreases, the placement problem becomes more difficult and a vision system is required to provide error information necessary to implement an accurate placement. Most vision-based placement strategies described in the open literature use component-topad alignment techniques unable to compensate for local errors in the component or the pad. This paper describes the development of a lead-to-pad placement strategy able to compensate for global and local errors. Sharp images with good illumination techniques reduce the amount of image processing, and simulation results show that lead-to-pad matching performs significantly better than component-to-pad matching.

Original languageEnglish (US)
Pages (from-to)855-864
Number of pages10
JournalIIE Transactions (Institute of Industrial Engineers)
Issue number10
StatePublished - 1996

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering


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