7.5.1. Layout and Parasitics

Try these first

1. 1.

   What is parasitic capacitance?

   Hint

   Think about how components can affect each other when placed closely.

2. 2.

   Name one method to minimize parasitic effects.

   Hint

   Consider how you might lay out a circuit to reduce unwanted interactions.

3. 3.

   What is the main impact of layout on CMOS circuits?

   • Affect performance
   • Increase cost
   • Decrease efficiency

   Hint

   Consider what layout issues can lead to performance problems.

4. 4.

   True or False: Shorter interconnections in a CMOS circuit can lead to increased parasitic capacitance.

   • True
   • False

   Hint

   Think about the relationship between length and capacitance.

5. 5.

   Design a CMOS layout for a high-speed application, optimizing for minimal parasitic effects. Describe the trade-offs involved in your design choices.

   Hint

   Consider how speed flows relate to layout density.

6. 6.

   Evaluate a given circuit layout that has high parasitic effects and devise a plan to optimize it. Which factors will you prioritize?

   Hint

   Think of ways to rearrange schools of fish so they can swim faster through a given space.