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In this paper, we propose a new test method to detect write disturbance fault (WDF) for magnetic RAM (MRAM). Furthermore, an adaptive diagnosis algorithm (ADA) is also introduced to identify and diagnose the WDF for MRAM. The proposed test method can evaluate process stability and uniformity. We also develop a built-in self-test (BIST) circuit that supports the proposed WDF diagnosis test method....
We proposed the systematic tools, RAMSES-M and TAGS-M, for test and diagnosis algorithms evaluation and development, respectively. In addition to traditional memory fault models, the tools support the MRAM specific fault model, Write Disturbance Fault (WDF) and its specific test operation, Read-previous, which is proposed in this paper, too. The concept of Weighted Fault Coverage (WFC) is introduced...
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