Automated Fault Analyzer for March Algorithm Dynamic Fault Detection Analysis

Dynamic fault coverages of March test algorithms need to be analyzed to ensure the robustness of Memory BIST for dynamic fault detection. Dynamic faults are proven to be a significant group of faults in Static Random Access Memory (SRAM). However, the manual analysis of dynamic fault coverage is time costly and tedious since it involves a total of 222 dynamic fault primitives. Conventional fault simulator depends on the size of the memory under test. Therefore, this proposed research focuses on the design of an automated fault analyzer for dynamic fault detection analysis by identifying the sensitizers and detectors, the sensitization cases for each test element for different March algorithms and lastly exporting the output of the computed fault coverage to a text file. The performance of the proposed analyzer is tested by using March MD2 and March MD9a and the fault coverages obtained from the analyzer matched with expected dynamic fault coverages and the execution time is around 6ms.