Design and Development Digital Line Checker for the Pin Number Testing of Circuit Board Inspection System

디지털 배선 검사기 설계 및 개발에 대한 연구

  • 박영석 (남서울대학교 전자공학과) ;
  • 정운기 (남서울대학교 전자공학과) ;
  • 박동진 (남서울대학교 전자공학과) ;
  • 김성덕 (남서울대학교 전자공학과) ;
  • 고윤석 (남서울대학교 전자공학과) ;
  • 유창근 (남서울대학교 전자공학과)
  • Published : 2002.04.25

Abstract

This paper proposes the digital pin line checker which can extremely improve the efficiency of the pine line checking using a micro processor. The line checker is designed which can check efficiently up to maximum 2048 pin. Alarm busser is designed ringing real-timely the case that the pin line is connected differently with real node number. Accordingly the comparing and identifying work visually the node number showing on the displaying board with real node number is avoided after the electronic stimulus enforce to the pin of the fixture by the test engineer. The digital line checker is designed based on the 8051. And the effectiveness and accuracy of the proposed line checking strategy is tested by simulating the several error connections for pin lines on the small scale board.

Keywords