A concordant memory-array design incorporates device fluctuation statistically into the signal-to-noise ratio analysis in DRAM and represents the failed bits in a chip. The proposed technique gives us a quantitative evaluation of the memory array and assures the operation of the 1.4 V array of a 100 nm - 1 Gb DRAM. The calculated dependence of failed bit counts on the array voltage is in good agreement with the experimental results of a 512 Mbit DRAM chip.
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Integrated Circuit Design and Technology, 2005. ICICDT 2005. 2005 International Conference on
Date of Conference: 9-11 May 2005