Robustly testable array multipliers under realistic sequential cell fault model
Mihalis Psarakis, Dimitris Gizopoulos, Antonis Paschalis, Y. Zorian · 2002
Traditional combinational fault models are not sufficient to detect to most common failure mechanisms in CMOS Iterative Logic Arrays (ILAs). The Realistic Sequential Cell Fault Model (RS-CFM) provides a comprehensive, robust test methodology for ILAs. It also satisfies the requirements for low test complexity and cell implementation independence. Adopting RS-CFM, we first provide sufficient conditions for two-dimensional (2D) ILAs to be robustly testable for first time in the literature. Then, we propose sufficient modifications to the carry-save and carry-propagate array multipliers so that they can be treated robustly with respect to RS-CPM with a test set of linear size.