Fast and slow charge trapping/detrapping processes in high-k nMOSFETs

被引:13
作者
Heh, Dawei [1 ]
Choi, Rino [1 ]
Young, Chadwin D. [1 ]
Bersuker, Gennadi [1 ]
机构
[1] SEMATECH, 2706 Montopolis Dr, Austin, TX 78741 USA
来源
2006 IEEE INTERNATIONAL INTEGRATED RELIABILITY WORKSHOP, FINAL REPORT | 2006年
关键词
D O I
10.1109/IRWS.2006.305224
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
A single pulse technique with a wide range of pulse times has been applied to study trap charging and discharging mechanisms in nMOSFET high-k devices. It is shown that both charging and discharging are controlled by two distinctive processes with different characteristic times. A proposed characterization methodology, which separates the relaxation effects associated with the fast transient charging/discharging processes, allows extracting the intrinsic dependence of threshold voltage on stress time.
引用
收藏
页码:120 / +
页数:2
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