Because exhaustive testing is impractical, engineers rely on fault models to predict how defects will behave. These models simplify the testing process by focusing on specific logical failures rather than infinite physical permutations. 1. Stuck-At Faults (SAF)
Physical defects like dust particles, short circuits, or broken connections can ruin a chip during fabrication. Testing ensures these broken chips do not reach consumers. However, testing a complex digital system from the outside is impossible without planning. This is where becomes essential, providing engineered solutions to make digital systems thoroughly testable. 1. The Core Challenge of Digital Systems Testing digital systems testing and testable design solution
By following these best practices and adopting a comprehensive approach to digital systems testing and testable design, designers and developers can ensure that their digital systems are reliable, efficient, and meet the required specifications. Because exhaustive testing is impractical, engineers rely on
Modern chips incorporate multiple cores, memories, mixed-signal blocks, and third-party intellectual property (IP). This integration demands hierarchical test strategies that coordinate across diverse components. Stuck-At Faults (SAF) Physical defects like dust particles,
As technology nodes shrink below 7nm, SAF alone cannot guarantee high fault coverage. Modern testing employs additional models:
