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SM ISO690:2012 TYAGI, R.. Theoretical Analysis of Silicon Surface Roughness Induced by Plasma Etching. In: Электронная обработка материалов, 2013, nr. 1(49), pp. 81-85. ISSN 0013-5739. |
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Электронная обработка материалов | ||||||
Numărul 1(49) / 2013 / ISSN 0013-5739 /ISSNe 2345-1718 | ||||||
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CZU: 533.9 | ||||||
Pag. 81-85 | ||||||
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A theoretical study of single-crystal silicon surface roughness induced by SF6 plasma has been carried out by means of atomic force microscopy. Plasma which contains the velocity shear instability has been used to study the relation between the plasma parameters and subsequent surface roughness. The surface roughness has been examined in the dependence on experimental parameters. The results obtained by theoretical calculations are identical to the experimental ones. The present paper has quantified the influence of a DC electric field values on plasma parameters such as the ratio of ion flux to the neutral reactant flux (J /JF), exposure time, DC electric field, magnetic field and inhomogeneity. Theoretical investigation shows that the roughness of silicon surface increases with the increase of the values of J /JF, exposure time, of magnetic field, of inhomogeneity in a DC electric field and decreases through increasing the value of a DC electric field. |
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