4.7.2. Follow design-for-test (DFT) strategies

Try these first

1. 1.

   What does DFT stand for?

   Hint

   Think about testing techniques.

2. 2.

   Name one benefit of scan chains.

   Hint

   Consider how you can see inside a circuit.

3. 3.

   What is the primary goal of DFT strategies?

   • To improve manufacturing speed
   • To facilitate testing of ICs
   • To lower production cost

   Hint

   Think about why we focus on testing in design.

4. 4.

   True or False: Scan chains are only used in digital logic.

   • True
   • False

   Hint

   Consider the nature of what scan chains interact with.

5. 5.

   Critically evaluate how the implementation of DFT strategies could affect the design process of a mixed-signal system. Consider aspects such as complexity, cost, and reliability.

   Hint

   Think about the trade-offs between upfront costs and long-term benefits.

6. 6.

   Design a test strategy for a mixed-signal system that includes both digital processing and analog signal inputs. What elements of DFT would you include and why?

   Hint

   Consider each component's role in verifying performance.