Increasing compositional backscattered electron contrast in scanning electron microscopy

被引:13
作者
Timischl, F. [1 ]
Inoue, N. [2 ]
机构
[1] JEOL Tech Ltd, 2-6-38 Musashino, Akishima, Tokyo 1960021, Japan
[2] JEOL Ltd, 3-1-2 Musashino, Akishima, Tokyo 1968558, Japan
关键词
Scanning electron microscopy; Backscattered electron image; Material contrast; Compositional contrast; Topography; DETECTORS; IMAGES; ANGLES; LVSEM;
D O I
10.1016/j.ultramic.2017.12.001
中图分类号
TH742 [显微镜];
学科分类号
摘要
A method for increasing compositional or material contrast of a standard semiconductor BSE detector in a scanning electron microscope (SEM) by compensation of the topographic contrast component is proposed. Compensation is based on the physical properties of backscattered electron emission and topography information of the specimen's surface. Three analytical and semi-empirical compensation algorithms employing different physical models and approximations are implemented and compared to conventional BSE signals to show the effectivity of the proposed compensation approach. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:82 / 93
页数:12
相关论文
共 14 条
[1]  
ARNAL F, 1969, CR ACAD SCI B PHYS, V268, P1526
[2]  
Asahina S., 2012, NANOTECHNOL S, P12
[3]   About the role of the various types of secondary electrons (SE1; SE2; SE3) on the performance of LVSEM [J].
Cazaux, J .
JOURNAL OF MICROSCOPY, 2004, 214 :341-347
[4]   Backscattered electron imaging at low emerging angles: A physical approach to contrast in LVSEM [J].
Cazaux, J. ;
Kuwano, N. ;
Sato, K. .
ULTRAMICROSCOPY, 2013, 135 :43-49
[5]  
Czepkowski T, 1996, SCANNING, V18, P433, DOI 10.1002/sca.1996.4950180606
[6]   A Comparison of Conventional Everhart-Thornley Style and In-Lens Secondary Electron Detectors-A Further Variable in Scanning Electron Microscopy [J].
Griffin, Brendan J. .
SCANNING, 2011, 33 (03) :162-173
[7]  
Hejna J, 1995, SCANNING, V17, P387, DOI 10.1002/sca.4950170607
[8]  
Kaczmarek D, 1997, SCANNING, V19, P310, DOI 10.1002/sca.4950190411
[9]   Simple separations of topographic and material contrasts using one annular type in-lens detector of low-voltage SEM [J].
Nagoshi, Masayasu ;
Kawano, Takashi ;
Sato, Kaoru .
SURFACE AND INTERFACE ANALYSIS, 2016, 48 (07) :470-473
[10]  
Reimer L., 1998, SCANNING ELECT MICRO, DOI DOI 10.1007/978-3-540-38967-5