Two‐dimensional carrier profiling
作者:
W. Vandervorst,
T. Clarysse,
J. Vanhellemont,
A. Romano‐Rodriguez,
期刊:
Journal of Vacuum Science&Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena
(AIP Available online 1992)
卷期:
Volume 10,
issue 1
页码: 449-455
ISSN:1071-1023
年代: 1992
DOI:10.1116/1.586373
出版商: American Vacuum Society
关键词: SPATIAL RESOLUTION;DOPING PROFILES;TRANSMISSION ELECTRON MICROSCOPY;TWO−DIMENSIONAL SYSTEMS;ELECTRIC CONDUCTIVITY;ION IMPLANTATION;BORON IONS;SEMICONDUCTOR MATERIALS
数据来源: AIP
摘要:
Two‐dimensional (2D) carrier profiling is an important aspect of the characterization of ultra‐large‐scale integrated devices. Through a special measurement procedure and sample preparation it has been shown that the use of spreading resistance profiling (SRP) for this application is possible with 10–20 nm spatial resolution. Extension to the quantitative determination of a three‐dimensional profile appears to be possible. Higher spatial resolution has been achieved using transmission electron microscopy (TEM) based methods whereby chemical etching and electron irradiation are investigated. For these methods detection limits down to 5×1017cm−3have been determined. Based on the properties of SRP (sensitivity and quantification) and TEM (high spatial resolution, on‐chip application) both methods are found to be highly complementary for 2D carrier profiling.
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