MOS VLSI中反馈桥接故障分析

Digest of Papers 1991 VLSI Test Symposium 'Chip-to-System Test Concerns for the 90's Pub Date : 1991-04-15 DOI:10.1109/VTEST.1991.208132

R. Rajsuman

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引用次数: 13

摘要

详细研究了MOS数字电路的反馈桥接故障。得到了电路振荡需要满足的一个必要条件。给出了预测振动频率和振幅的表达式。结果表明，当反馈桥接故障不引起振荡时，会产生异常输出。这些故障可能无法通过逻辑测试检测到:作者建议测量电源电流来检测CMOS电路中的此类故障。

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An analysis of feedback bridging faults in MOS VLSI

The feedback bridging faults are examined in detail for MOS digital circuits. A necessary condition is obtained which needs to be satisfied for oscillations in the circuit. Expression are given to predict the frequency and amplitude of oscillations. It is shown that when a feedback bridging fault does not cause oscillations, it creates an anomalous output. Such faults may not be detected by logic testing: the authors recommend measurement of power supply current to detect such faults in CMOS circuit.<>

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Digest of Papers 1991 VLSI Test Symposium 'Chip-to-System Test Concerns for the 90's

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