Scan chains, BIST, and advanced ATPG remain the bedrock of the industry, enabling the mass production of reliable, complex electronics. However, as technology scales further, the focus is shifting toward test compression, hardware security, and adaptive test strategies. The future of digital system testing lies not just in detecting defects, but in providing data-driven insights to improve the manufacturing process itself.
: It ensures the final system functions as intended and meets specific user needs without ambiguity. Implementation Strategies digital systems testing and testable design solution
(M. Abramovici, M. A. Breuer, and A. D. Friedman): A definitive textbook covering everything from fault modeling to BIST and diagnosis Amazon.com Testing of Digital Systems Scan chains, BIST, and advanced ATPG remain the
To manage the infinite variety of physical defects, engineers use fault models. The most common is the Single Stuck-At (SSA) model, which assumes a signal line is permanently tied to logic 0 or logic 1. While simple, the SSA model effectively covers a high percentage of physical defects. Other models include the Bridging fault model for short circuits and the Delay fault model for timing-related failures. : It ensures the final system functions as
These sections explain how to use "Concurrent Fault Simulation" to track multiple faults simultaneously, which is the most computationally efficient way to verify a test program's effectiveness. Conclusion