采用扁平电容测试结构的薄栅氧化物可靠性评估

M. Katsumata, J. Mitsuhashi, K. Kobayashi, Y. Mashiko, H. Koyama
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引用次数: 2

摘要

开发了一种具有极低电流测量技术的测试结构(最小可检测电流为5/spl倍/10/sup -17/ A),用于测量由电子或空穴的捕获和脱陷引起的极微小的泄漏电流变化。目前的测量aA级极低电流的技术,对于准确评价栅极氧化物的保持特性和应力诱导降解是非常有用的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reliability evaluation of thin gate oxide using a flat capacitor test structure
A test structure with very low-level current measurement technique (minimum detectable current is 5/spl times/10/sup -17/ A) has been developed and is used for measuring very small change of leakage current caused by trapping and detrapping of electrons or holes. The present technique to measure very low level current of aA order is very useful for accurate evaluation of retention characteristics and stress induced degradation of gate oxide.
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