Hierarchical DFT: Proven Divide-and-Conquer Solution Accelerates DFT Implementation and Reduces Test Costs

Implementation of the most challenging DFT tasks is greatly simplified by the proven and widely-adopted automation available in Tessent products. This whitepaper describes the basic components of an RTL-based hierarchical DFT methodology, the benefits that it provides, and the tool automation that is available through Tessent products. The focus is on the techniques and automation of hierarchical DFT for scan ATPG and diagnosis.