6.4.1. Minimizing Scan Chain Length

Try these first

1. 1.

   What is the primary impact of having a longer scan chain?

   Hint

   Think about the processes involved in testing.

2. 2.

   What does scan chain partitioning refer to?

   Hint

   Consider how dividing a task can affect time efficiency.

3. 3.

   What is the primary objective of minimizing scan chain length?

   • Increase testing time
   • Reduce power consumption
   • Simplify circuit design

   Hint

   Focus on how chain length affects power.

4. 4.

   True or False: Longer scan chains can lead to faster test cycles.

   • True
   • False

   Hint

   Think about the time required to shift data.

5. 5.

   Given a system with 200 flip-flops, discuss a detailed strategy to partition this scan chain and optimize it for testing.

   Hint

   Consider both the design structure and efficiency.

6. 6.

   Analyze how reducing scan chain length while maintaining fault coverage could be achieved in a complex digital system.

   Hint

   Think about redundancy and coverage strategies.