Use of Electron Microprobe Analysis to Determine Layer Thicknesses down to the Monolayer Range

被引:16
作者
Butz, R. [1 ]
Wagner, H. [1 ]
机构
[1] Kernforschungsanlage Julich, Inst Tech Phys, Hannover, Germany
来源
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 1970年 / 3卷 / 02期
关键词
D O I
10.1002/pssa.19700030206
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electron microprobe analysis has been performed on Mo layers of 2 to 157 angstrom thickness depositedon tungsten. The X-ray intensity of the Mo-L-alpha 1 and W-M-alpha 1 line were investigated as a function of the Mo layer thickness and the electron beam voltage of 2.9 to 40 kV. Mo layers could be detected down to the monolayer range. A linear relation between the layer thickness and the X-ray intensity is found. The greatest sensitivity in the determination of the layer thickness is attained for beam voltages 3 to 4 times the excitation energy of the characteristic Mo radiation.
引用
收藏
页码:325 / 331
页数:7
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