3.3.2.1. Scan-Based Testing

Try these first

1. 1.

   What is scan-based testing?

   Hint

   Think about how testing can access internal components.

2. 2.

   What role do scan chains play in scan-based testing?

   Hint

   Consider how data moves through a series of connected components.

3. 3.

   What is the primary purpose of scan-based testing?

   • To improve functional testing
   • To access internal states for fault detection
   • To simplify circuit design

   Hint

   Think about the unique features of scan testing.

4. 4.

   True or False: Scan chains increase the complexity of testing digital circuits.

   • True
   • False

   Hint

   Reflect on the purpose of design features in testing.

5. 5.

   Create a fault simulation scenario using scan-based testing in a circuit with several interconnected scan chains. Outline the expected outcomes if a fault occurs at one flip-flop.

   Hint

   Consider how connectivity affects the integrity of data transmission.

6. 6.

   Evaluate how scan-based testing might differ in effectiveness across various technologies, such as older analog systems versus modern digital circuits.

   Hint

   Think about advancements in technology and their impact on testing methods.