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A soft measurement of small out-line transistor in surface mount technology

  • Chao Xu
  • , Lifei Bai
  • , Zhihao Zhang
  • , Boxuan Han
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The role of machine vision detection technology as the core component in the surface mount technology devices (SMDs) cannot be denied. Single in-line package chip is an important type in IC chips and its leads forms varies a lot. This paper proposes an efficient method to soft measure single in-line package chips position and orientation. Chip image is taken by the industrial camera in the form of gray level and the region of interest (ROI) image is selected. In contour image which is extracted from the binary ROI image to get the precision position, Hough transform is used to locate the ranges of the chips leads on both sides and to calculate the accurate positions of the leads corners. Then the other parameters can be calculated as well. We test the performance of our approach by a mount of images in different light conditions taken from the surface mount system.

Original languageEnglish
Title of host publicationProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6855-6858
Number of pages4
ISBN (Electronic)9781538611272
DOIs
StatePublished - 15 Dec 2017
Event43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, China
Duration: 29 Oct 20171 Nov 2017

Publication series

NameProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
Volume2017-January

Conference

Conference43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Country/TerritoryChina
CityBeijing
Period29/10/171/11/17

Keywords

  • Chip detection
  • Discrete fourier
  • Hough transform
  • Image based soft sensor
  • Small out-line transistorchip
  • Surface mount technology

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