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Generally speaking, the dependency data compression is very useful for Intellectual Property (IP) cores and SoC. We consider the shift-in power and compression ratio in low-cost ATE environment. We propose new compression architecture with fixed length for running ones. We suppose that the ATE has not repeated function and synchronization signal. In the results, when the complexity of VLSI circuit...
We present a Linear Feedback Shift Register (LFSR) like architecture, because the LFSR can bring a lot of data by using a few bits. We calculate the ATE data by Gauss-Elimination and put the ATE data to our decompression architecture to generate a lot of patterns. And one ATE data will run several times in the architecture. If some faults cannot be detected, we will generate the patterns which are...
In this paper, new compression architecture is proposed for multiple scan-chains. We use buffers to hold back data, and use read enable signals to filter useless data. We use only four extra channels and less hardware for largest ISCAS'89 circuits to reduce test data volume and shift-in power. The average of peak/WTC shift-in turns to 3x/6.6x, after comparing (Wang and Chakrabarty, 2008) and our method...
This paper presents a test slice difference (TSD) technique to improve test data compression. It is an efficient method and only needs one scan cell. Consequently, hardware overhead is much lower than cyclical scan chains (CSR). As the complexity of VLSI continues to grow, excessive power supply noise has become seriously. We propose a new compression scheme which smooth down the switching activity...
In this paper, we present a low power strategy for test data compression that is called ldquobreak-independent-table (BIT) encodingrdquo. In addition, we present a new decompression scheme for test vectors that is called ldquotest slice difference techniquerdquo to solve huge test data volume that must be stored in the tester memory. About how reducing power dissipation problem, we present an extremely...
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