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首页> 外文期刊>IEEE Journal of Solid-State Circuits >Large-signal 2T, 1C DRAM cell: signal and layout analysis
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Large-signal 2T, 1C DRAM cell: signal and layout analysis

机译:大信号2T,1C DRAM单元:信号和布局分析

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This paper presents a general signal and layout analysis for the two-transistor, one-capacitor DRAM cell. The 2T, 1C configuration enables significantly larger, typically /spl gsim/3x, raw sense-signal than is achievable in conventional 1T, 1C cells. In general, stray capacitances at the capacitor nodes further increase the signal level; an exact analytic formula is derived in this case, including the dependence upon bitline precharge level. With trench technology, the 2T, 1C cell occupies 25-30% more area than a corresponding folded-bitline 1T, 1C cell; an implementation employing a buried strap is proposed. Maximization of array density requires multiplexing bitlines to sense amps.
机译:本文介绍了两晶体管,单电容器DRAM单元的一般信号和布局分析。与传统的1T,1C单元相比,2T,1C配置可实现更大的,通常为/ spl gsim / 3x的原始感测信号。通常,电容器节点处的杂散电容会进一步提高信号电平;在这种情况下,可以得出一个精确的解析公式,其中包括对位线预充电电平的依赖性。使用沟槽技术时,2T,1C单元比相应的折叠位线1T,1C单元占据25-30%的面积。提出了采用掩埋带的实施方式。阵列密度的最大化需要多路复用位线以检测电流。

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