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Calculation of the Absorbed Electron Energy 3D Distribution by the Monte Carlo Method, Presentation of the Proximity
Alexander A Svintsov1, Maxim A Knyazev1, Sergey I Zaitsev1
1Institute of Microelectronics Technology and High Purity Materials, Russian Academy of Sciences, Chernogolovka, St. Academician Osipyan, 6, 142432 Moscow, Russia.
Abstract:
The paper presents a program for simulating electron scattering in layered materials . Calculations show that the absorbed energy density is three-dimensional, while the contribution of the forward-scattered electrons is better described by a power function rather than the commonly used Gaussian. It is shown that for the practical correction of the proximity effect, it is possible, nevertheless, to use the classical two-dimensional proximity function containing three parameters: α, β, η. A method for determining the parameters α, β, η from three-dimensional calculations based on MC simulation and development consideration is proposed. A good agreement of the obtained parameters and experimental data for various substrates and electron energies is shown. Thus, a method for calculating the parameters of the classical proximity function for arbitrary layered substrates based on the Monte Carlo simulation has been developed.
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