Practice Precise Delay Measurements (4.5.3) - Layout Versus Schematic (LVS) Verification and Post-Layout Simulation
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Precise Delay Measurements

Practice - Precise Delay Measurements

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does t_PLH represent?

💡 Hint: Think about the transition of the signal from a low state to a high state.

Question 2 Easy

Why do we need to measure delay in VLSI designs?

💡 Hint: Consider the frequency of digital signals.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does t_PHL stand for?

Propagation delay from low to high
Propagation delay from high to low
Total propagation delay

💡 Hint: Think about the direction of the output transition.

Question 2

True or False: Parasitic components do not affect signal timing.

True
False

💡 Hint: Recall how parasitics play a role in delay measurements.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Analyze the increase in propagation delay due to added parasitic capacitance. Your calculated capacitance added is 500 fF. If the switching current is 50 µA, what impact does this have on delay?

💡 Hint: Look at the relationship between RC time constant and delay.

Challenge 2 Hard

Given a circuit measuring t_PLH and t_PHL allows for understanding where delays are most pronounced, how would you assess if a delay increasing to unacceptable levels in a design?

💡 Hint: Consider the setup and hold times in relation to delay measurements.

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