4.2.1. Test Pattern Generation

Try these first

1. 1.

   What are test patterns in BIST?

   Hint

   Think about what triggers the testing process.

2. 2.

   Name one type of test pattern.

   Hint

   They vary in how they are generated.

3. 3.

   What type of pattern covers a wide range of fault scenarios?

   • Deterministic
   • Pseudo-Random
   • Both

   Hint

   Consider the randomness of patterns.

4. 4.

   True or False: Deterministic test patterns are used to target specific fault models.

   • True
   • False

   Hint

   Think about their structured approach.

5. 5.

   Design an example BIST framework that incorporates both pseudo-random and deterministic test patterns. Justify your choices based on the types of faults you might encounter in the circuits being tested.

   Hint

   Consider which circuits you are testing and the typical faults they experience.

6. 6.

   Critically analyze the efficiency of test pattern generation methods in terms of cost vs. coverage effectiveness in a high-volume product setting.

   Hint

   Think about production runs and quality control requirements.