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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2019 Volume 45, Issue 23, Pages 19–22 (Mi pjtf5249)

Elastic scattering of neutral fluorine on Si, O, C, and H atoms in the range of the relative kinetic energies of 2–200 eV

A. P. Palova, J. Zhangb, M. Baklanovb, Sh. Weib

a Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics
b Institute of Electronic Information Engineering, North China University of Technology, Beijing, China

Abstract: Binary interatomic potentials F–F, F–Si, F–O, F–C and F–H are calculated from the first principles (ab initio) on the basis of the multi-configuration method of self-consistent field (CAS-SCF) with a basic set of atomic wave functions aug-pp-AV6Z and are used to calculate phase shifts and cross sections of elastic scattering of atoms in the range of relative kinetic energies 2–200 eV. It is expected that the obtained elastic scattering cross sections will be useful for describing sputtering and etching of porous organosilicate films with ethylene bridges used in modern nanoelectronics.

Keywords: sputtering, etching, fluorine, organosilicate glasses.

Received: 28.06.2019
Revised: 28.06.2019
Accepted: 26.08.2019

DOI: 10.21883/PJTF.2019.23.48713.17955


 English version:
Technical Physics Letters, 2019, 45:12, 1187–1190

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