A.A. Shvachko − Ph.D.(Eng.), Associate Professor, 

Department of Electronic Devices, Yuri Gagarin State Technical University of Saratov

E-mail. Alexandr1899@gmail.com

A.A. Zakharov – Dr.Sc.( Eng.), Professor, 

Department of Electronic Devices, Yuri Gagarin State Technical University of Saratov

E-mail: zaharov@sstu.ru 

A.A. Potapov - Postgraduate Student, 

Department of Electronic Devices, Yuri Gagarin State Technical University of Saratov

E-mail: potapov_andrey13@mail.ru