Abstract
It has been conjectured that atomic oxygen and ozone can have a great influence on the plasma oxidation of ultrathin aluminum for magnetic tunnel junctions. In order to measure the density of O and ozone, two-photon absorption laser induced fluorescence measurements are performed in the dc glow plasma that is used for the oxidation process. It was found that ozone is much more abundantly present compared to atomic oxygen. Using in situ, real-time ellipsometry measurements, we prove that ozone is not directly involved in the oxidation process.
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CITATION STYLE
Knechten, K., Kniknie, B. J., Engeln, R., Swagten, H. J. M., Koopmans, B., van de Sanden, M. C. M., & de Jonge, W. J. M. (2004). Two-photon absorption laser induced fluorescence on O and O3 in a dc plasma for oxidation of aluminum. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 22(6), L11–L14. https://doi.org/10.1116/1.1807837
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