理解等离子体损伤的尺度效应

A. Krishnan, S. Krishnan
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引用次数: 0

摘要

栅极氧化物电流(在等离子体过程中)对天线比的依赖性决定了等离子体损伤对产品的重要性。这种关系在等离子体电流限制下呈线性关系,在等离子体电压限制下呈亚线性关系。这种亚线性相关性的含义是,高天线比下的失效分数并不是充电损伤敏感性的可靠指标,要准确评估充电损伤,需要一个包含等离子体和氧化物电流-电压特性的完整模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comprehending scaling effects on plasma damage
The dependence of the gate oxide current (during plasma processes) on the antenna ratio determines the significance of plasma damage for the product. This relationship is shown to be linear in the plasma-current limited regime and sub-linear in the plasma-voltage limited regime. The implication of this sub-linear dependence is that the fail fraction at high antenna ratio is not a reliable indicator of susceptibility to charging damage, and a complete model incorporating plasma and oxide current-voltage characteristics is necessary for accurate assessment of charging damage.
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