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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does area overhead refer to in the context of scan chains?
💡 Hint: Think about the extra components and their spatial requirements.
Question 2
Easy
How does scan chain implementation affect performance?
💡 Hint: Consider the time taken to move bits through the chain.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is area overhead?
- Cost of manufacturing
- Extra space used on the chip
- Test coverage ratio
💡 Hint: Think about what happens physically to the chip.
Question 2
True or False: Longer scan chains always improve fault detection.
- True
- False
💡 Hint: Reflect on the negative impacts of extending scan chains.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are designing a test circuit that uses a scan chain with 50 flip-flops. Calculate the expected area overhead if each flip-flop consumes 2 mm², and suggest optimization strategies to mitigate this.
💡 Hint: Focus on assessing necessity versus efficiency.
Question 2
A scan chain design has led to a 30% decrease in performance in a circuit. Suggest and justify three modifications to improve performance while maintaining test coverage.
💡 Hint: Consider approaches that can simultaneously address both issues.
Challenge and get performance evaluation