栅极尺寸变化对三维NAND闪存阵列程序特性影响的研究

J. Y. Seo, Yoon Kim, Se Hwan Park, Wandong Kim, Do-Bin Kim, Jong-Ho Lee, Hyungcheol Shin, Byung-Gook Park
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引用次数: 2

摘要

在3D堆叠NAND闪存中,为了实现高密度存储容量,堆叠层数趋于增加。随着器件高度的增加,获得良好的垂直蚀刻轮廓是影响字线栅极尺寸的重要因素。本文采用TCAD仿真方法研究了栅极尺寸的变化对三维NAND闪存阵列程序特性的影响。此外,我们还比较了不同结构的NAND闪存的电池特性,栅极全能(GAA)和双栅极(DG)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation into the effect of the variation of gate dimensions on program characteristics in 3D NAND flash array
In 3D stacked NAND flash memory, the number of stacked layers tends to increase for high density storage capacity. With the increase of the height of devices, it is important to achieve a good vertical etch profile by which word line (WL) gate dimensions are affected. In this paper, we investigate the effect of the variation of gate dimensions on the program characteristics in 3D NAND flash memory array by using TCAD simulation. Also, we compare the cell characteristics of NAND flash with different structures, gate-all-around (GAA) and double gate (DG).
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