Abstract
A high-energy (MeV) helium ion beam has been focused down to l μm by a combination of piezo-driven objective slits and a magnetic quadrupole doublet. Rutherford backscattering (RBS) map** techniques using focused MeV ion beams were, for the first time, applied to multilayered structures of metals, isolated with insulators, representing a test structure for multilayered wiring or interconnections of integrated circuits to nondestructively analyze the imperfection of the structures.
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Acknowledgements
The microbeam line at the Government Industrial Research Institute Osaka is an adaptation and modification of the Heidelberg system. The authors are indebted to K. Traxel for his advice on the construction of the beam line in the initial stage of this study.
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Takai, M., Kinomura, A., Izumi, M. et al. Multilayer Analysis by Focused MeV Ion Beam. MRS Online Proceedings Library 108, 51–56 (1987). https://doi.org/10.1557/PROC-108-51
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DOI: https://doi.org/10.1557/PROC-108-51