Volume 4 Issue 3
ELECTRONIC NETWORK JOURNAL "RUSSIAN TECHNOLOGICAL JOURNAL"
Volume 4 №3 (12) 2016
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ANALYTICAL INSTRUMENTATION AND TECHNOLOGY |
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V.B. Goncharov, |
DISCRETENESS ERRORS OF FREQUENCY LEVEL GAUGES AND METHODS OF THEIR MINIMIZATION 9 Annotation: The report examines the main causes of errors in the measurement of the level of rocket fuel components by variable frequency sensors – the speed of the wave propagation, the period of modulation, the nonlinearity of the amplitude-frequency characteristics of the generator and circuits, frequency deviation and difference frequency. The proposed options minimise bias. Methods of reducing the influence of discreteness errors in a frequency modulated (FM) transmitters (adaptive voltage control modulation, the introduction of an additional slow modulation of the carrier frequency, the spectral analysis method) are presented.Keywords:level gauge, waveguide sensor, microwave, discreteness error, error of level gauge. |
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MICRO - AND NANOELECTRONICS, PHYSICS OF CONDENSED STATE |
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V. S. Kondratenko, |
TECHNOLOGY OF LASER CUTTING OF SILICON WAFERS INTO ORGANIC LIGHT-EMITTING DIODE CHIPS 14 Annotation:The article deals with the matter of crystal quality in the production of microdisplays based on organic light-emitting diodes (OLEDs) after separation. This work aimed at increasing the product yield in cutting a silicon device wafer into chips by a method based on laser controlled thermocracking (LCT). This paper considers the laser processes performed on a laser system RT-350 assessed by the heating effect on OLED structures. Data for rating the merit of the surfaces of chips after the laser controlled thermocracking and dicing, namely, the availability and size of the chipping, as well as surface roughness are presented and compared. The authors substantiated the possibility of increasing efficiency and quality in the process of cutting silicon device wafers with a thickness of 725 microns into OLEDs for microdisplays production.Keywords:ferroelectric, thin film, PZT, modeling, disturbed layer, dead layer. |
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P.P. Lavrov |
INFLUENCE OF DISTURBED LAYERS ON THE DIELECTRIC PROPERTIES OF FERROELECTRIC THIN FILM CAPACITORS 15 Annotation: Capacitor ferroelectric structures are the basis of many modern microelectronic devices, including non-volatile memory, piezoelectric micro-actuators, sensors etc. Miniaturization of such devices requires a reduction in the ferroelectric layer thickness, which reduces the major characteristics of ferroelectric structures, such as permittivity, remanent polarization, Curie temperature, and others. Such thickness dependences are usually explained by the "disturbed layer" model, which assumes the existence of a nonferroelectric (disturbed, dead) layer with uniform thickness on the ferroelectric-metal interface. In this paper, dielectric characteristics of the capacitor structures based on dense and porous lead zirconate titanate (PZT) films with different thicknesses are studied. Modeling of permittivity dependencies as a function of the ferroelectric film thickness considering the presence of disturbed layers is performed. The optimal modeling technique is proposed.Keywords: ferroelectric, thin film, PZT, modeling, disturbed layer, dead layer. |
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I.A. Glinskiy, |
THERMAL MODELLING OF TERAHERTZ QUANTUM-CASCADE LASER BASED ON NANOHETEROSTRUCTURES GaAs/AlGaAs 15 Annotation:This work presents the result of a simulation of thermal processes in a terahertz quantum cascade laser (THz QCL) based on GaAs/AlGaAs nanoheterostructure with a bimetal waveguide. A simplified model of THz QCL was built. Model simplifications of THz QCL were justified. The temperature distribution and maximum temperature values in the active region were obtained for different duty cycles and for various active region sizes with proportional heat generation change. Different types of bonding of the active region and substrate were simulated. According to the results a conclusion about the optimal duty cycle and frequency for the pulse mode were formulated. The time-to-stationary mode for different pulse width was calculated. The maximum temperature gradient in THz QCL was calculated.Keywords: THz source, terahertz quantum-cascade laser, bimetal waveguide, thermal modelling, finite elements method, heat distribution. |
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MODERN ELECTRONIC AND TELECOMMUNICATION SYSTEMS |
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V.K. Bityukov, |
Annotation:An automated test bench for the study of the characteristics of various kinds of chips of
mobile sources of regulated charge pump secondary power supply receiving energy from
batteries was created. Having a modular structure, the test bench includes, in addition to the
test charge pump module, power supply, control, load, display modules, and a USB module
for connection with a computer. The test bench enables carrying out research of various
types of chips by changing only one small measuring board. The control module is based
on PIC18F2550 microcontroller. The automated measuring system consists of a multimeter
and oscilloscope. The investigated characteristics are output voltage as a function of load
current, output voltage as a function of supply voltage, the forms of the output voltage ripple,
the response of chips to a stepped load transition. One of the major goals of the research is
to study algorithms of the charge pump circuits. A program for controlling the test bench by
creating a virtual front panel was developed. Together with a virtual panel of the oscilloscope
and available multimeter software this allows controlling the equipment operating parameters
and making measurements remotely over the Internet. Using the created test bench new
experimental data on all of the above characteristics for MAX1759 chip were obtained, and an
algorithm of this chip in the buck mode operation was studied for the first time. Keywords: test bench, integrated circuit chip, characteristics, algorithm, charge pump, control program, virtual panel. |
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PHILOSOPHICAL FOUNDATIONS OF TECHNOLOGY AND SOCIETY |
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L.F. Matronina, |
SOCIALLY-ENGINEERING ACTIVITY IN THE INFORMATION EPOCH 23 Annotation:This article aims at identifying the dynamics of socioengineering activities in the information age, its possibilities and prospects. Conceptual analysis of contemporary approaches to social engineering undertaken by the authors showed that despite the discrepancies it should be considered as the direction of scientific research, on one hand, and as one of the leading mechanisms of transformation of social structures and social institutions, on the other hand. The authors take into account the results of research in the field of social engineering by leading experts and believe that there are a number of issues that require further development and concretization. Based on scientific methods (the method of systemic functional analysis, the comparative-analytical method, the hermeneutic approach and others) the article considers the features of social forecasting as a part of social engineering activities, describes the basic mechanisms of their influence on the attitude of public opinion capable of giving rise to anthropological risks and leading to a threat for information security. Given the contradictory nature of the social engineering activities in the information age, the authors come to the conclusion that one of the urgent problems of contemporary interdisciplinary studies is a competent examination of humanitarian social engineering assessment activities, including social programming to determine the degree ricorderai components and possibilities of their reduction.Keywords: social engineering, information age, social programming, information security, anthropological risks. |
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S.M. Sukhorukova, |
CONCORDANCE OF TECHNOGENESIS WITH ECODEVELOPMENT 10 Annotation: In the conditions of industrial production for profit-making it is necessary to make as much products as possible in a time unit. In this regard technological equipment it is more preferable to the businessman than the human, because the equipment does not care how much the natural environment degrades after its use. It means that the vector of technological development motivated by profit is not connected with preservation of the environment suitable for the human. In order to overcome this orientation it is necessary that the economic motivation of using new technologies would not allow ecologically negative consequences of their introduction. However, it is not so in the conditions of market economy. Today the cause of environmental problems is rightly connected with the equipment and technologies developed on the basis of achievements of modern science. However, one should not understand by this only the complex of engineering and natural-science knowledge. A considerable share of responsibility falls on human sciences including economic ones. For ecological safety of production it is necessary to develop a theory of economy orienting the technological development to coordination with the laws of the environment keeping its appropriateness for the life of the human. The article describes how the theory of market economy initially causes a mismatch of technogenesis and ecodevelopment, which determines the inevitability of emergence of environmental problems. In order to coordinate technogenesis with ecodevelopment and guarantee ecologically sustainable development, refusal of market economy is required, because this will allow to introduce long-term economic responsibility for ecological damage and to take into account changes in environmental management efficiency by using natural science knowledge on the basis of forecasts of cyclic changes in the biosphere.Keywords: environmentally sustainable development, technogenesis, eco-development. |
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