一种提取SiO/ sub2 /中silc阱时间常数的电荷捕获新技术

D. Ielmini, A. Spinelli, A. Lacaita, L. Chiavarone, A. Visconti
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引用次数: 3

摘要

提出了一种新的实验技术,用于研究氧化硅中应力诱导缺陷中电子的捕获-脱失时间常数。这项新技术是基于对闪存的栅极应力测量,外加脉冲栅极电压。给出了512 Kbit NOR-flash阵列的数据,并利用解析模型和蒙特卡罗模型对脉冲条件下陷阱辅助隧道机制进行了分析。对选定电池的实验数据和计算结果进行比较,可以估计氧化阱的能量和空间深度
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A new charge-trapping technique to extract SILC-trap time constants in SiO/sub 2/
A new experimental technique for investigating the trapping-detrapping time constants for electrons at stress-induced defects in the silicon oxide is presented. The new technique is based on the gate-stress measurement for flash memories, with the application of a pulsed gate voltage. Data for 512 Kbit NOR-flash arrays are presented, and analyzed by analytical and Monte Carlo models for the trap-assisted tunneling mechanism under pulsed conditions. Comparison between experimental data and calculations for selected cells allows for an estimation of the energy and spatial depth of the oxide traps
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