Dose and pressure dependence of silicon microstructure in SF6 gas due to excimer laser irradiation |
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Authors: | H.R. Dehghanpour B. Sajad |
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Affiliation: | a Physics Dept., Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran b Physics Dept., Alzahra University, 1993891176 Tehran, Iran c Mechanical Eng. Dept., Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran |
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Abstract: | ArF excimer laser radiation on Si surface at controlled SF6 atmosphere creates a microstructure whose alteration at various UV doses and SF6 pressures are investigated in this work. Moreover, a rigorous model has been presented here regarding the experiments based on the micro-fluid mechanical properties of molten silicon layer and the subsequent mechanical wave resonance due to the surface shallow fluid theory. The competitive thermal and non-thermal UV laser interaction with Si and the following heat transfer explains the creation of the self-assembled micro-pillars on Si surface. |
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Keywords: | Si microstructure ArF laser Surface wave Resonance pattern |
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