Practice Improved Fault Coverage (4.4.4) - Built-in Self-Test (BIST) Techniques

Practice: Improved Fault Coverage

Lesson 4.4.4Built-in Self-Test (BIST) Techniques

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is meant by 'fault coverage' in BIST?
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Think about how many faults can be identified during testing.
Question 2.
Name one type of fault that BIST can detect.
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Consider faults that keep a signal static.
3Question 3.
What does a high fault coverage indicate?
- Low reliability
- High reliability
- No impact on reliability
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Think about the relationship between testing and system robustness.
4Question 4.
True or False: Stuck-at faults can be detected by BIST.
- True
- False
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Recall the definitions discussed earlier.
Question 5.
Consider an electronic system that implements BIST. If the fault coverage is reported at 85%, what does this suggest about the number of detectable faults?
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Think about what a percentage represents in terms of whole system faults.
Question 6.
Analyze why BIST may have limitations regarding unknown or complex faults. Provide a real-world example where this could be critical.
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Consider scenarios where new technologies might introduce unforeseen faults.

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