An SoC Test Scheduling Algorithm using Reconfigurable Union Wrappers

This paper presents a reconfigurable union wrapper that can wrap multiple cores into a single wrapper design. Moreover, we present a test scheduling algorithm to minimize a test application time using the proposed reconfigurable union wrapper. The proposed heuristic algorithm can achieve short test application time with low computational cost compared to the conventional approaches where every core has its own wrapper. Experimental results for the ITC'02 SOC benchmarks show the effectiveness of our approach