Step function determination of Auger peak intensity
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United States of America Patent
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Oct 21, 2003
Grant Date -
Oct 10, 2002
app pub date -
Feb 26, 2001
filing date -
Feb 26, 2001
priority date (Note) -
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Abstract
An electron analyzer and its method of operation useful for determining the intensity of a peak in the electron spectrum. The invention is particularly useful for determining the intensity of an Auger peak of a given element in the sample being probed and associating the intensity with a concentration of that element in the sample. The electron spectrum is measured above and below the anticipated peak. The data near the peak are not used. The remaining data above the peak and below the peak are fit to respective equations linearly dependent upon the measurement energy. The difference of the two equations at the value of the peak energy is associated with the peak intensity and the elemental concentration. The invention can be applied to measuring nitrogen concentration in a thin protective film of amorphous carbon or diamond.
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