On the interplay between plasma ions, radicals and surfaces: who dominates the interaction?

作者: Ellen R Fisher

DOI: 10.1088/0963-0252/11/3A/316

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摘要: Ions and radicals are known to be key players in many plasma processes, including anisotropic etching, film deposition surface modification. How different species influence the reactions reactivity of each other is not, however, fully understood, especially with respect interactions. Using our imaging interacting surfaces (IRIS) technique, we have measured effects ion bombardment on a number species. Results from IRIS experiments for SiF SiF2 SiF4 plasmas, CF2 hexafluoropropylene oxide NH NH2 NH3 plasmas presented variety substrates. Depending molecule, applied rf power, substrate material, these display wide Moreover, increases scattering primarily etching regimes (SiF2, CF2, NH2), decreases one system (NH polymer substrates), has no effect plasmas. Correlating radical relationships leads possible processing mechanisms, which also discussed.

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