The document presents various physical design interview questions and answers related to semiconductor design, including topics like IR drop, power dissipation strategies, and crosstalk effects. It covers aspects of technological design such as placement inputs and outputs, fan-out effects on delay, and methods to address electromigration. Additional details can be found on the referenced website.

1. PHYSICAL DESIGN INTERVIEW
QUESTIONS WITH ANSWERS
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What is IR drop?

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How can you reduce
power dissipation using
HVT and LVT in the
design?

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What is the wire load
model (WLM)?

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Does cross-talk always
lead to violations?

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How do positive or
negative edge-triggered
flip-flops affect setup and
hold violations?

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What are the inputs and
outputs of placement?

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If we increase the fan-out
of a cell, how does it
affect delay?

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What are multi-driven
nets?

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How do you fix
Electromigration (EM)?

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What are Mealy and
Moore?

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