On the reliability of ZrO2 films for VLSI applications

被引:4
作者
Caputo, D [1 ]
Irrera, F [1 ]
机构
[1] Univ Roma La Sapienza, Dipartimento Ingn Elettron, I-00184 Rome, Italy
关键词
D O I
10.1016/j.microrel.2003.12.012
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper we present a systematic investigation of the effects of electrical stress on reliability of zirconium oxide films. In particular, we monitored stress-induced leakage current, high-field conduction and capacitance curves as function of the applied voltage and the injected charge. Defect density in the bulk oxide have been extracted from measurements by means of literature models. As a result, a square root time dependence of the stress-induced defects has been found. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:739 / 745
页数:7
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