6.3.3. Fault Coverage and Redundancy

Try these first

1. 1.

   What is fault coverage?

   Hint

   Think about why we bother testing circuits in the first place.

2. 2.

   How does redundancy help in testing?

   Hint

   What happens when you have more eyes looking out for problems?

3. 3.

   What is the primary goal of redundancy in scan chains?

   • To increase circuit complexity
   • To enhance fault detection
   • To decrease testing time

   Hint

   Think about why you'd want more components in a testing scenario.

4. 4.

   True or False: Fault coverage can be achieved without redundancy.

   • True
   • False

   Hint

   Consider the relationship between redundancy and coverage.

5. 5.

   Design a basic circuit testing strategy that incorporates redundancy and explains its benefits.

   Hint

   Think about how each component interacts.

6. 6.

   Evaluate a given scan chain design for its fault coverage and identify areas where redundancy could be enhanced.

   Hint

   Focus on both hard-to-detect faults and critical circuit areas.