NEW SERIES. SERIES: PHYSICS

Izvestiya of Saratov University.

ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)


Cite this article as:

Kozhevnikov I. O., Mikhailov A. I., Bratashov D. N. Research of the Contact Pads Topology Influence on the Parameters Reproducibility of the Current Oscillations in Mesa-Planar Structures Based on Semi-Insulatinggallium Arsenide. //Izvestiya of Saratov University. New series. Series: Physics. , 2015, vol. 15, iss. 1, pp. 51-56. DOI: https://doi.org/10.18500/1817-3020-2015-15-1-51-56

Language: 
Russian
Heading: 
UDC: 
621.382.032.27

Research of the Contact Pads Topology Influence on the Parameters Reproducibility of the Current Oscillations in Mesa-Planar Structures Based on Semi-Insulatinggallium Arsenide

Autors: 
Kozhevnikov Ilya Olegovich, Saratov State University
Mikhailov Alexander Ivanovich, Saratov State Technical University named after Yuri Gagarin
Bratashov Daniil Nikolaevich, Saratov State University
Abstract: 

Experimental results of research the influence of the electric field distribution between the pads of mesa-planar resistor structures based on semi-insulating n-GaAs are represented. These influence by changing pads topology (plane-parallel, flat-pointed, counterpointed and concave-pointed) was studied for the current oscillations parameters (the threshold voltage, frequency and amplitude of current oscillations) reproducibility increasing. It was found that the structures with counter-pointed topology metal sites improves the concentration of the electric field at the tip and a narrows the field of current flow, has a highest reproducibility of parameters such as the magnitude of the current oscillations occurrence threshold voltage and the amplitude of oscillation. For structures with a plane-parallel contact form reproducibility of experimental measurements is the smallest due to the high influence of edge effects.

DOI: 
10.18500/1817-3020-2015-15-1-51-56
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