Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Analysis and Simplification of Fault Model for CMOS Operational Amplifier

CMOS 연산 증폭기의 고장 모델 분석 및 고장 집합의 간략화

  • 김윤도 (경상대학교 전자공학과) ;
  • 송근호 (경상대학교 전자공학과) ;
  • 이효상 (경상대학교 전자공학과) ;
  • 김강철 (여수대학교 컴퓨터 공학과) ;
  • 한석붕 (경상대학교 전자공학과)
  • Published : 1999.06.01
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Abstract

In this paper, we present simplified fault set which is made by analyzing fault relation to design specification in CMOS operational amplifier. The hard fault is easily modeled because an effect of hard fault is out of all design specification. However, the soft fault is not easily modeled because an effect of soft fault on design specification is varied according to position and depth of fault. We simulated hard and soft fault by HSPICE, varying threshold voltage and W/L ratio from 90% increase to 90% decrease. The decrease of test time and the production of high reliability mixed-mode IC are possible by the proposed fault set.

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