V.V. Afanasiev - Dr.Sc. (Eng.), Professor, Department of Radioelectronic and Quantum Devices, Kazan National Research Technical University named after A.N.Tupolev E-mail: vafv@reku.kstu-kai.ru E.R. Mardanshin - Post-graduate Student, Department of Radioelectronic and Quantum Devices, Kazan National Research Technical University named after A.N.Tupolev E-mail: m.emil89@mail.ru