2.4.1. Scan Chains and Built-In Self-Test (BIST)

Try these first

1. 1.

   What is the purpose of scan chains in digital circuits?

   Hint

   Think about how they connect components for testing.

2. 2.

   What does BIST stand for?

   Hint

   Focus on the self-checking aspect.

3. 3.

   What is the main function of scan chains?

   • To reduce circuit size
   • To manage internal state access
   • To improve power consumption

   Hint

   Think about the role they play during testing.

4. 4.

   True or False: BIST requires external testing equipment.

   • True
   • False

   Hint

   Remember the self-testing capabilities of BIST.

5. 5.

   Design a simple circuit proposal that integrates scan chains and BIST. Explain how this will improve testing efficiency.

   Hint

   Focus on how both methods complement each other in testing.

6. 6.

   Evaluate the potential challenges that might arise while implementing BIST in larger integrated circuits. How would you address these challenges?

   Hint

   Consider both physical and operational aspects of circuit designs.