TIME-DEPENDENT DIELECTRIC-BREAKDOWN OF THIN SILICON-OXIDE USING DENSE CONTACT ELECTRIFICATION

被引:19
|
作者
FUKANO, Y [1 ]
HONTANI, KJ [1 ]
UCHIHASHI, T [1 ]
OKUSAKO, T [1 ]
CHAYAHARA, A [1 ]
SUGAWARA, Y [1 ]
YAMANISHI, Y [1 ]
OASA, T [1 ]
MORITA, S [1 ]
机构
[1] SUMITOMO MET IND LTD, ADV TECHNOL RES LABS, AMAGASAKI, HYOGO 660, JAPAN
关键词
DENSE CONTACT ELECTRIFICATION; THIN SILICON OXIDE LAYER; TDDB; CHARGE-TO-BREAKDOWN; AFM/STM; NONCONTACT DC-MODE;
D O I
10.1143/JJAP.33.3756
中图分类号
O59 [应用物理学];
学科分类号
摘要
We achieved time dependent dielectric breakdown (TDDB) measurement of a thin silicon oxide microscopically using contact electrification. By increasing the external bias voltage, TDDBs of the oxide layer without and with oxide surface roughening were observed sequentially. Charge-to-breakdown in the contact electrification was estimated to be on the order of 10(-5) approximately 10(-6) C/cm2. This value is higher than that of electrified charge density in the absence of external bias voltage, but is much smaller than the value of approximately 5 x 10(-1) C/cm2 obtained in the conventional TDDB measurement using a metal-oxide-semiconductor (MOS) capacitor. From calculation of the number of injected charges per atom, TDDB measurement using contact electrification is expected to provide a more quantitative evaluation of charge-to-breakdown than that using a MOS capacitor.
引用
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页码:3756 / 3760
页数:5
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