Quantenchemische Untersuchung der Elementarprozesse beim Plasmaätzen im System Fluor/Silizium

Christian Opitz1, Hans Müller1, Adnan Kodlaa1
1Sektion Chemie, Friedrich-Schiller-Universität Jena, Jena, Germany

Tóm tắt

Using the cluster model of the silicon (111) surface we derive by means of EHT calculations a mechanism of reactive plasma etching in the system F/Si including diffusion processes. Species SiF2 are found to be the primary etching products at the surface. SiF4 is formed with high probability in the gas phase.

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