6.2.2. Scan Chain Configuration

Try these first

1. 1.

   What is meant by chain length in scan chains?

   Hint

   Consider how this relates to testing duration.

2. 2.

   Why would you use multiple scan chains?

   Hint

   Think about time efficiency during testing.

3. 3.

   What impact does chain length have in scan chains?

   • Increases test time
   • Reduces power consumption
   • Enhances fault coverage

   Hint

   Think about how data travels in a chain.

4. 4.

   True or False: Using multiple scan chains can reduce testing time.

   • True
   • False

   Hint

   Consider how parallel processes work in testing.

5. 5.

   Design a scenario with an electronic system using scan chains. Optimize the scan chain configuration considering speed and fault coverage.

   Hint

   List possible components and how they can be grouped.

6. 6.

   Evaluate the effect of increasing the number of flip-flops in a single chain. Discuss any potential outcomes regarding test time and fault detection.

   Hint

   Consider both side effects and direct impacts on test processes.