Leakage current analysis of a real world silicon-silicon dioxide capacitance

被引:0
|
作者
Schwaha, P. [1 ]
Heinzl, R. [1 ]
Brezna, W. [2 ]
Smoliner, J. [2 ]
Enichlmair, H. [3 ]
Minixhofer, R. [3 ]
Grasser, T. [1 ]
机构
[1] Vienna Univ Technol, IUE, CDL, Gusshausstr 27-29, A-1040 Vienna, Austria
[2] Vienna Univ Technol, FKE, A-1040 Vienna, Austria
[3] Schloss Premstatten, Ustriamicrosyst AG, A-8141 Unterpremstatten, Austria
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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
It is shown that surface roughness becomes increasingly important as oxide thicknesses decrease. Silicon-silicon dioxide capacitances with thicknesses of 7 nm, 15 nm, and 50 nm are measured with an atomic force microscope (AFM). The height data thusly obtained is used to create three dimensional simulation structures to reproduce measurement data obtained from leakage current measurements. The leakage currents are simulated using the Fowler-Nordheim (FN) tunnelling current model.
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页码:365 / +
页数:2
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