A 7F/sup 2/ cell and bitline architecture featuring tilted array devices and penalty-free vertical BL twists for 4 Gb DRAM's

H. Hoenigschmid, A. Frey, J. DeBrosse, T. Kirihata, G. Mueller, G. Daniel, G. Frankowsky, K. Guay, D. Hanson, L. Hsu, B. Ji, D. Netis, S. Panaroni, C. Radens, A. Reith, D. Storaska, O. Weinfurtner, J. Alsmeier, W. Weber, M. Wordeman
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引用次数: 0

Abstract

A 7F/sup 2/ DRAM cell and corresponding vertically folded bitline architecture has been fabricated using a 0.175 /spl mu/m CMOS technology. This concept features an advanced 30/spl deg/ tilted array device layout and an area penalty free inter BL twist. The presented scheme minimizes local well noise by maximizing the number of twisting intervals.
7F/sup 2/ cell和位线架构,具有倾斜阵列器件和4gb DRAM的无惩罚垂直BL扭曲
采用0.175 /spl mu/m CMOS技术,制备了7F/sup 2/ DRAM单元和相应的垂直折叠位线结构。这一概念的特点是先进的30/spl度/倾斜阵列设备布局和一个区域罚扭之间BL。该方案通过最大限度地增加扭转段的数量来最小化局部井噪声。
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