3.2. Fault Models in Electronic Systems

Try these first

1. 1.

   What is a stuck-at fault?

   Hint

   Think about how a switch might be permanently stuck.

2. 2.

   Give an example of a bridging fault.

   Hint

   Consider what might happen if rubber insulation wears off.

3. 3.

   What is a stuck-at fault?

   • A fault where a signal is disconnected
   • A fault where a signal is fixed at a logic level
   • A fault caused by thermal issues

   Hint

   Think of how a light switch might stay on or off.

4. 4.

   True or False: Bridging faults are caused by improper soldering.

   • True
   • False

   Hint

   Consider poor manufacturing conditions.

5. 5.

   Design a simple circuit that includes a stuck-at fault and explain how you would test for it.

   Hint

   Think of how to build a testing sequence.

6. 6.

   Assume you have a circuit with both bridging and delay faults. How would you prioritize testing them?

   Hint

   Consider the impact on performance during tests.