P. Wobrauschek et al., TXRF WITH SYNCHROTRON-RADIATION ANALYSIS OF NI ON SI-WAFER SURFACES, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 363(3), 1995, pp. 619-620
SR-TXRF (Synchrotron Radiation excited Total Reflection X-ray Fluoresc
ence Analysis) with monoenergetic radiation produced by a W/C multilay
er monochromator has been applied to the analysis of Ni on a Si-wafer
surface. An intentionally contaminated wafer with 100 pg has been used
to determine the detection limits. 13 fg have been achieved for Ni at
a beam current of 73 mA and extrapolated to 1000 s, This technique si
mulates the sample preparation technique of Vapour Phase Decomposition
(VPD) on a wafer surface.