3.1. Introduction to Fault Models, Testing Methodologies, and Industry Standards

Try these first

1. 1.

   Define what a fault model is.

   Hint

   Think about how failures are categorized in circuits.

2. 2.

   What does a stuck-at fault represent?

   Hint

   Consider what happens when a circuit can't change its output.

3. 3.

   What is a stuck-at fault?

   • A fault where a signal is constantly high
   • A fault that allows signal transition
   • A fault in analog circuits

   Hint

   Think about what stuck-at means.

4. 4.

   Is functional testing sufficient to identify all faults?

   • True
   • False

   Hint

   Consider what is not covered by functional tests.

5. 5.

   Consider a circuit with multiple pathways. If one pathway is subject to a stuck-at fault, how could that affect the overall circuit functionality?

   Hint

   Think about how a stuck line impacts signal flow.

6. 6.

   Describe a scenario in which using BIST might be more beneficial than traditional testing methods.

   Hint

   Consider accessibility and the need for independence from external equipment.