Vacuum and Surface Science
Online ISSN : 2433-5843
Print ISSN : 2433-5835
Special Issue : Frontier in Nanoscale Three-Dimensional Analysis
Nanostructure Analysis by Laser Assisted Atom Probe Tomography
Tadakatsu OHKUBO
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2018 Volume 61 Issue 12 Pages 778-783

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Abstract

Microstructures of materials and devices greatly influence the mechanical, electrical, magnetic, and other properties. In order to improve such properties, it is very important to understand the relationship between the microstructure and the properties. Atom probe tomography is a technique which can identify the position of individual atoms and can display the results as 3D tomography. Also, the atomic species are identified based on the time-of-flight measurement. Therefore, all the elements from hydrogen can be analyzed. Although there are several theoretical limitations of this method, the application area is spreading by complementing with other methods such as SEM, TEM and so on. In this paper, the principle and the limitations of the laser assisted atom probe tomography, efforts to improve performance, influence of measuring conditions such as laser wavelength and intensity, and examples of typical application are shown.

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この記事はクリエイティブ・コモンズ [表示 - 非営利 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by-nc/4.0/deed.ja
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