To test for a SA0 fault on a specific wire, the test vector must attempt to drive that wire to a logical
What are your primary ? (e.g., high fault coverage targets, strict silicon area overhead budgets) digital systems testing and testable design solution
While DFT adds extra logic (and therefore cost) to a chip—often called "area overhead"—the return on investment is massive. It drastically reduces and Test Time , which are the primary drivers of manufacturing costs. More importantly, it ensures higher Fault Coverage , meaning fewer defective products reach the consumer. Conclusion To test for a SA0 fault on a
The era of "design first, test later" is dead. The modern mantra is (Design for Testability), a set of hardware and methodology rules embedded into the chip during its architectural and logic design phases. DFT is a shift-left strategy: identifying test problems before a single mask is fabricated. More importantly, it ensures higher Fault Coverage ,