LSI design flow and EDA

Which correctly describes standard-cell design?

  1. AEvery transistor is placed one by one by hand
  2. BCells such as gates, designed and verified in advance, are placed and wired to build the circuit
  3. CThe circuit is rewritten after manufacturing before use
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Answer: B. Cells such as gates, designed and verified in advance, are placed and wired to build the circuit

In standard-cell design, basic circuits such as NANDs and flip-flops are designed and verified in advance as cells of uniform height, and logic synthesis and place-and-route tools arrange and connect them. Most large digital LSIs are designed this way.

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More LSI design flow and EDA questions

  1. Which correctly describes a feature of FPGAs?
  2. What is the main purpose of clock tree synthesis (CTS) in the place-and-route stage?
  3. What does 'IP (IP core)' mean in LSI design?
  4. In static timing analysis, which timing violation occurs when a signal changes too soon after the clock edge, so a flip-flop cannot correctly hold the previous data?
  5. What is the set of design data, including design rules, device models and cell libraries, that a foundry provides to designers called?