Practice - Impact of pMOSFET W/L Variation
Practice Questions
Test your understanding with targeted questions
What is the significance of the W/L ratio in pMOSFET performance?
💡 Hint: Consider how the transistor behaves in the circuit.
Define the term VOH in the context of a CMOS inverter.
💡 Hint: Think about the state of the output when the input is at a specific level.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What effect does increasing the W/L ratio of a pMOSFET have on its output performance?
💡 Hint: Think about the driving capability of the transistor.
True or False: A higher W/L ratio in pMOS tends to improve noise margins.
💡 Hint: Consider how noise and strength are related.
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Challenge Problems
Push your limits with advanced challenges
How would the overall performance of a CMOS inverter change if the pMOS transistor had a W/L ratio of 4:1 while the nMOS had a W/L ratio of 1:1? Analyze the impacts on VTC and noise margins.
💡 Hint: Consider how an unbalanced ratio affects symmetry and performance.
Considering a fabrication process that inadvertently leads to an increase in the nMOSFET Vt, predict how the inverter's operation will be affected with respect to its VTC and noise margins.
💡 Hint: Think about the relationship between threshold voltage and inverter speed.
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Reference links
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