Energy selective scanning electron microscopy to reduce the effect of contamination layers on scanning electron microscope dopant mapping

被引:33
作者
Rodenburg, C. [1 ]
Jepson, M. A. E. [1 ]
Bosch, E. G. T. [2 ]
Dapor, M. [3 ,4 ,5 ]
机构
[1] Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
[2] FEI Electron Opt, NL-5600 KA Eindhoven, Netherlands
[3] FBK, Interdisciplinary Lab Computat Sci LISC, I-38123 Povo, Trento, Italy
[4] Univ Trento, I-38123 Povo, Trento, Italy
[5] Univ Trento, I-38123 Trento, Italy
基金
英国工程与自然科学研究理事会;
关键词
Energy selective SEM; Dopant mapping; Detector transfer modelling; Silicon; MONTE-CARLO CALCULATION; EMISSION; OXIDE; SEM;
D O I
10.1016/j.ultramic.2010.04.008
中图分类号
TH742 [显微镜];
学科分类号
摘要
We demonstrate that energy selective scanning electron microscopy can lead to substantial dopant contrast and resolution improvements (compared to standard SEM) when the energy selection is carried out based on Monte Carlo modelled secondary electron spectra in combination with detector transfer modelling. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:1185 / 1191
页数:7
相关论文
共 28 条
[1]   HIGH-RESOLUTION SECONDARY-ELECTRON IMAGING AND SPECTROSCOPY [J].
BLELOCH, AL ;
HOWIE, A ;
MILNE, RH .
ULTRAMICROSCOPY, 1989, 31 (01) :99-110
[2]  
CHEE AKW, 2008, MAT RES SOC S P C, V1026
[3]   High resolution dopant profiling in the SEM, image widths and surface band-bending [J].
Chee, K. W. A. ;
Rodenburg, C. ;
Humphreys, C. J. .
EMAG: ELECTRON MICROSCOPY AND ANALYSIS GROUP CONFERENCE 2007, 2008, 126
[4]   A Monte Carlo investigation of secondary electron emission from solid targets: Spherical symmetry versus momentum conservation within the classical binary collision model [J].
Dapor, Maurizio .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2009, 267 (18) :3055-3058
[5]   A comprehensive Monte Carlo calculation of dopant contrast in secondary-electron imaging [J].
Dapor, Maurizio ;
Inkson, B. J. ;
Rodenburg, C. ;
Rodenburg, J. M. .
EPL, 2008, 82 (03)
[6]   The Effect of Oxide Overlayers on Secondary Electron Dopant Mapping [J].
Dapor, Maurizio ;
Jepson, Mark A. E. ;
Inkson, Beverley J. ;
Rodenburg, Cornelia .
MICROSCOPY AND MICROANALYSIS, 2009, 15 (03) :237-243
[7]   Why is it possible to detect doped regions of semiconductors in low voltage SEM: a review and update [J].
El-Gomati, M ;
Zaggout, F ;
Jayacody, H ;
Tear, S ;
Wilson, K .
SURFACE AND INTERFACE ANALYSIS, 2005, 37 (11) :901-911
[8]   Dopant profiling with the scanning electron microscope - A study of Si [J].
Elliott, SL ;
Broom, RF ;
Humphreys, CJ .
JOURNAL OF APPLIED PHYSICS, 2002, 91 (11) :9116-9122
[9]   Low voltage scanning electron microscopy [J].
Joy, DC ;
Joy, CS .
MICRON, 1996, 27 (3-4) :247-263
[10]   Quantitative secondary electron energy filtering in a scanning electron microscope and its applications [J].
Kazemian, P. ;
Mentink, S. A. M. ;
Rodenburg, C. ;
Humphreys, C. J. .
ULTRAMICROSCOPY, 2007, 107 (2-3) :140-150