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An efficient scan tree design for test time reduction

We propose a new scan tree architecture for test application time reduction. This technique is based on a dynamic reconfiguration mode allowing one to reduce the dependence between the test set and the final scan tree architecture. The proposed method includes two different configuration modes: the scan tree mode and the single scan mode. The proposed method does not require any additional input or output. Experimental results show up to 95% of test application time saving and test data volume reduction in comparison with a single scan chain architecture.