Abstract

Using a combined SIMS-XPS system it is shown that the much lower secondary ion yield of Ge + sputtered from germanium under 10 keV O + 2 bombardment at normal incidence compared to the Si + yield sputtered from silicon is due to the much smaller uptake of oxygen in germanium vs silicon. Data are also presented on the chemistry induced in b oth elements as a function of the angle of incidence of the O + 2 beam.

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