Practice Comprehensive Fault Detection (5.4.2) - Scan Chains and Serial Testing

Practice: Comprehensive Fault Detection

Lesson 5.4.2Scan Chains and Serial Testing

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9 questions

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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 a scan chain?
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Think about how these flip-flops are arranged.
Question 2.
Name one type of fault that scan chains help identify.
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Consider faults that lock a signal at a specific value.
3Question 3.
What type of fault occurs when an output signal is fixed?
- Stuck-at Fault
- Delay Fault
- Bridging Fault
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Consider which faults involve a signal not changing as expected.
4Question 4.
True or False: Scan chains cannot detect bridging faults.
- True
- False
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Recall if scan chains have any observable advantages.
Question 5.
You are tasked with designing a digital circuit that must achieve high fault coverage. Discuss how you would incorporate scan chains into the design and the considerations you would make.
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Think about the trade-offs betweenEase of testing and design complexity.
Question 6.
Critically evaluate how scan chains can impact yield and reliability in manufacturing processes. What potential challenges might you face?
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Consider both the benefits and the drawbacks of increased testing efficiency.

5 more questions in this section. Enroll free to practise them all.