Determination of the spatial distribution of deep centers from capacitance measurements ofpnjunctions
作者:
Yasuhito Zohta,
Yamichi Ohmura,
期刊:
Applied Physics Letters
(AIP Available online 1972)
卷期:
Volume 21,
issue 3
页码: 117-119
ISSN:0003-6951
年代: 1972
DOI:10.1063/1.1654295
出版商: AIP
数据来源: AIP
摘要:
Effects of a spatial distribution of deep centers on the junction capacitance are reported for the first time. It is shown that the spatial distribution of deep centers can be calculated from capacitance data measured by both the capacitance‐voltage method and the Copeland method, if their energy level is known or assumed. The theory is examined with the experiment on siliconp+njunctions irradiated with 300‐kV protons. The analysis yields a value 0.40 eV below conduction band for the energy level of radiation‐induced defects, as well as a distribution of the defects with depth.
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