Abstract
In this paper, we propose a hierarchical automatic test pattern generation (ATPG) framework that can generate custom tests for full-scan systems-on-chip (SOCs) containing intellectual property (IP) cores without revealing much IP. The proposed ATPG is shown to be correct and complete and its average and worst case complexities are shown to be comparable with those of classical ATPG. The proposed ATPG reduces DFT overheads and test application costs. It also enables utilization of a range of test methodologies at the SOC level.
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