High-resolution strain measurement in shallow trench isolation structures using dynamic electron diffraction
High-resolution strain measurement in shallow trench isolation structures using dynamic electron diffraction
复制标题
使用动态电子衍射在浅沟槽隔离结构中进行高分辨率应变测量
DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
G. Park
中科院分区:
文献类型:
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作者:
Miyoung Kim;J. Zuo;G. Park
We report a versatile electron diffraction strain measurement technique and its application to strain in shallow trench isolation (STI) device structures. Using a nanometer-sized probe formed by convergent-beam electrons in a field-emission transmission electron microscope, electron diffraction patterns were recorded with high spatial resolution. By fitting the diffraction patterns with a pattern matching technique using dynamic theory, it is shown that strain in the device can be measured with high accuracy to quantify the effects of different filling materials in STI structures.