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Original title in Czech: Mikroelektronika a technologieFEKTAbbreviation: PP-METAcad. year: 2018/2019
Programme: Electrical Engineering and Communication
Length of Study: 4 years
Accredited from: 25.7.2007Accredited until: 31.12.2020
Profile
The doctoral study programme is focused on the preparation of scientific and research specialists in various fields of microelectronics and technology for electrical engineering. Particularly in the theory, design and testing of integrated circuits and systems, in semiconductor devices and structures, intelligent sensors, optoelectronics, electrical technology materials, industrial processes and electric power sources. Doctoral studies are closely associated with scientific and research activities of the faculty staff. The aim is to provide the PhD education (to the graduates of master's programme) in all subareas of microelectronics and deepen the theoretical knowledge (especially in mathematics and physics), teach the PhD students to the methods of scientific work, and provide them with special knowledge and practical skills (both obtained mainly during their researching activities associated with solving dissertation thesis issues). Current and expected future trends play an important role, particularly in electronics and communication technology. Due to the developed theoretical education of high quality and specialisation in chosen field of study the PhD graduates are sought as specialists in all areas of electrical engineering.The aim is to provide the doctor education in all these particular branches to students educated in university magister study, to make deeper their theoretical knowledge, to give them also requisite special knowledge and practical skills and to teach them methods of scientific work.
Key learning outcomes
The doctors are able to solve scientific and complex engineering tasks from the area of microelectronics and electrical technology Wide fundamentals and deep theoretical basis of the study program bring high adaptability and high qualification of doctors for the most of requirements of their future creative practice in all areas of microelectronics and electrotechnology. The doctors are competent to work as scientists and researchers in many areas of basic research or research and development, as high-specialists in the development, design, construction, and application areas in many institutions, companies, and organisations of the electrical and electronics research, development, and industry as in the areas of electrical services and systems, inclusively in the special institutions of the state administration. In all of these branches they are able to work also as the leading scientific-, research-, development- or technical managers.
Occupational profiles of graduates with examples
The graduate of the doctoral study programme is able to solve scientific and complex engineering tasks in the field of microelectronics and technology for electrical engineering. The graduate has reached a high level of general theoretical knowledge in the branch and is further specialized in the area of his/her dissertation thesis. Having broad theoretical knowledge, the PhD graduate is capable of meeting work requirements of both fundamental and applied research. The PhD graduates are sought out as specialists in all branches of microelectronics and technology. They are able to work as research workers, as members of management staff in fundamental or applied research, as design, construction or operation specialists in various research and development institutions, electronics manufacturing firms, and to work for various users of electronic systems and devices. They will be able to employ advanced technology everywhere in a creative way.
Guarantor
prof. Ing. Vladislav Musil, CSc.
Issued topics of Doctoral Study Program
The aim of this work is to provide a research of advanced and optimized circuit- and architecture-level solutions for true low-voltage high power efficient analog-to-digital converters for energy harvesting and biomedical applications. The voltage supply target is in range of 0.5-0.3V with power consumption in range of nanowatts. The function of the proposed structures will be described and simulated by using 0.18 µm CMOS technology from TSMC. The verified design of this low-voltage convertor should be the main result.
Tutor: Khateb Fabian, prof. Ing. et Ing., Ph.D. et Ph.D.
The focus of the thesis is to optimise the design means of preparation of the aperiodic optical diffractive structures in the fibre waveguides aimed to the construction of the sensors and spectral filters. The thesis will utilise and show the design and verification of the necessary modifications of the present mask based fibre grating exposition systems to allow for the exposition of the diffractive structures by use of the interferometric method. Forming the LP aperiodic structures will be experimentally shown and acquired features compared to the Bragg grating features. The design model for forming the desired functionality grating is expected to be composed. The means for the control of the grating properties and for the fast evaluation of the spectral changes of the aperiodic diffractive structures will be designed and experimentally verified. Reference: Kayshyap, R.: Fiber Bragg Gratings. AP, San Diego, 1999.ISBN 0-12-400560-8 Othonos, A, Kyriacos, K.: Fiber Bragg Gratings, fundamentaks and applications in telecommunications and sensing. AH, Norwood, 1999. ISBN0-89006-344-3
Tutor: Urban František, doc. Ing., CSc.
Items of work will be study and solving of problems vapour soldering. Mainly it will be study and measure influence of contamination solder liquid on finisch quality soder joint. Alternatively will be solved metods of recycling used soldering liquid. Disertable core: Certified recycling method, measuring.
Tutor: Šandera Josef, doc. Ing., Ph.D.
In this work the student will survey the methods of measurements and evaluation of electrical impedance of electrochemically relevant sample. The student will become familiar with the concept of artifacts in measurements in a four-electrode connection. The student will learn experimental methods of impedance measurement as well as computational methods (Finite elements modelling) to asses, side by side, the expected and the measured data. The student will develop geometrically difficult configurations to elucidate proper evaluation of realistic awkwardly-shaped samples.
Tutor: Vanýsek Petr, prof. RNDr., CSc.
Study way of cooling power semiconductor devices, mainly LED diodes. Study luminous efficiency of LED´s with temperature. Computer simulation temperature ratios in structure. Will be solved multilayer structures, connecting of printed board with metal core and ceramic materials. It will be possibility cooling with liquid flow in channels. Result of work will be original cooling system. Dissertable core: Design of cooling system for power LED diodes wiuring study could be possibility to pay cooperation with industry.
The aim of the thesis will be optimization of gel polymeric electrolytes in terms of their lifetime and performance for application in electrochemical power sources. The influence of ion-liquids additives and flame retardants on the electrolyte-electrode phase interface, both for lithium cells and super-capacitors, will be investigated. It will also include observations of irreversible changes in this interface leading to the growth of internal resistance.
Tutor: Sedlaříková Marie, doc. Ing., CSc.
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Tutor: Vaněk Jiří, doc. Ing., Ph.D.
The goal of the thesis is to study and analyze the optical fibre resonant and mode conversion macrostructures with longitudinal step and gradient changes of the propagation constant. The aim is also finding the applicable methods of fabrication of the structures and optimizing the structures for their use in sensing. The works will utilize the abilities of the station for the optical fibres hetero splicing and the station for laser ultra micromashining of optical fibres. The expected results will be the optimized samples of the fibre heterostuctures for sensing and the optimised methods of their fabrication Reference: Kayshyap, R.: Fiber Bragg Gratings. AP, San Diego, 1999.ISBN 0-12-400560-8 Othonos, A, Kyriacos, K.: Fiber Bragg Gratings, fundamentaks and applications in telecommunications and sensing. AH, Norwood, 1999. ISBN0-89006-344-3
Study of the influence of electromagnetic fields on the properties of gel electrolytes with additions of nanomaterials and other additives. The properties of the samples will be assessed by measuring their basic electrochemical properties using impedance spectroscopy, cryoscopy and other physical methods. Electrolytes will be tested in conjunction with electrode systems of lithium-ion and sodium accumulators.
AFM (atomic force microscopy) is one of the suitable techniques for observing electrode surfaces in their natural environment. The aim of this project is to develop a methodology that will make it possible to use this microscope technique to observe the processes that are taking place in different types of battery systems in different operating modes. The outcome of the project will to verify the existing knowledge of the processes taking place in the batteries and to obtain new knowledge about these processes.
Tutor: Bača Petr, doc. Ing., Ph.D.
The aim of this study will be selection of best composition of salts modifying the properties of ionic liquids for their use in electrochemical power sources. The lifetime and specific capacity of electrod in connection to these electrolytes will be investigated. At the beginning, ionic liquids based on imiodazolium core and tetraalkyl ammonium salts will be chosen. Electrochemoical impedance spectroscopy and related electrochemical techniques will be applied.
Theoretical study failure phenomena of solder joint using in electronics. Measuring and simulation (ANSYS) reliability of real solder joints. Determine of diagnostic methodology and define reliability. Determine of fatique coefficients. Core of disertability: Original calculating methodology for determine original no-published fatique coefficients for specific application.
In the course of the research the student will study the theory of electron-gas interactions for a making and optimisation a basic code ot the new Monte Carlo software. New database of diferencial cross sections for elastic and inelastic interactions in conditions of selected gasses will be done. All other physical consequences of these phenomenon will be studied and relevant physical models will be integrated into the basic code of the software. The function and accurancy of simulations of electron-gas interactions will be compared with experimantal data. New detector of signal electrons for ESEM will be designed and tested acording to simulation results.
Tutor: Neděla Vilém, doc. Ing. et Ing., Ph.D., DSc.
For lead-acid battery is achieved only limited utilization of the active material, which is around 40%. A possible way to overcome this limitation is the transition from micro to nano particle size of active materials (especially PbO2), which occurs due to an increase in the active surface with the result of higher yield. The task of research to preparation of nanostructured active materials sizes and verify the above hypothesis.
Utilizing new circuit principles for low-voltage low-power analog circuit design. These circuits serve mainly in biomedical area. Theoretical design and experimental evaluations using program Cadence with technology 0.18 um from TSMC. The verified design of a current conveyor should be the main result.
Nonconventional semiconductor structures for low-voltage integrated circuits. Theoretical design, simulations, and experimental evaluations of designed integrated circuits with low-voltage and low-power. The verified design of a current conveyor should be the main result.
Tutor: Musil Vladislav, prof. Ing., CSc.
New design techniques for operational amplifiers with extremely low voltage supply. The voltage supply target is in range of 0.5-0.3V with power consumption in range of nanowatts. The function of the proposed structures will be described and simulated by using 0.18 µm CMOS technology from TSMC. The verified design of this operational amplifier should be the main result.
In this work the students will become familiar with current issues in energy storage electrochemical redox flow cells and with monitoring the extent of their state of charge. The research will lead to the design and development of methods that can be used for continuous monitoring of the state of charge status. Two basic principles will be used: first, optical tracking in those systems where the spectrum varies coloration due to state of charge, and second, in the absence of optical changes, measuring electrochemical properties.
Thermoelectric generators can utilize temperature gradients from natural sources or temperature gradients during the processing of waste heat. These heat flows, they are abundant, predictable and steady for a limited time - so it can serve as a reliable energy source in many applications. Very low voltage achievable in one thermocouple requires integration of an extremely large number of thermocouples or Peltier TEC modules in one system and their connection to the inverter operating with extremely low voltage. The aim of the dissertation is to elaborate methods of mass production of thermoelectric cells connected in series, including the integration of simple electronic circuits for their control. The use of printing technologies is envisaged.
Tutor: Boušek Jaroslav, prof. Ing., CSc.
The student will learn in this project about current issues of energy storage using electrochemical redox flow cells. The experimental component of the work will lead to the improvement of the cells based on the principle of the vanadium redox system and to the design and development of new cells, not using the vanadium redox couples.
In the course of the research the student will become familiar with the current status of insulation materials and their behavior at low, room and high temperatures. The research will lead to the design and development of methods that can be used to continuously monitor the insulation properties of the dielectrics and to predict the practical life span of the insulators and their resistance to extreme temperatures. The principal experimental method will be the measurement of complex impedance at variable temperatures as well as the measurement of DC resistance and loss factor at 50 Hz. The methodology will be supplemented by monitoring aging due to sunlight exposure.
Printed electronics is developing rapidly and reaches into all areas of use of electronics, because it allows to produce electronic equipment in an unusual way, in large volumes and usually at very low cost. It is based on the use of new, organic, materials and new or adapted methods of printing. Currently there are already well-developed methods of mass production and development focuses on the design of the equipment. The aim of the dissertation is to elaborate methods of printing of electric sensors powered by photovoltaic and thermoelectric cells, including integration of simple electronic circuits for their control.
The aim of this work is to investigate the possibilities of design and application of new technologies based on atmospheric pressure plasma discharge on materials surfaces. The results will be useful for the surface treatment of electrode systems for liquid and gel electrolyte accumulators. The student will become acquainted with the existing equipment of the slot-type radio-frequency plasma nozzle and the possibilities of its application for modification of the surface of the materials to improve adhesion of glued joints and preparation of surface nanostructures. Both the physical and chemical parameters of the treated surfaces can be observed and an interesting question will be to evaluate the influence of the spatial orientation of the Poynting vector near the plasma-surface interface. Part of the thesis is also the use of existing knowledge of the design of atmospheric pressure radiofrequency discharge jets and the designing (even by mathematical modeling) of appropriate improvements of the excitation source design and distribution of the gas flow in the space.
Tutor: Bartušek Karel, prof. Ing., DrSc.
Study of the electrical properties of composite epoxy resins on different degradation factors. Suggest acceptable methods for measuring and evaluation of electric properties of the degraded materials. Quantify individual degradation influences from the point of view of possible accelerated lifetime tests.
Tutor: Kazelle Jiří, prof. Ing., CSc.
In the course of the research the student will become familiar with t the current issue of smart home. The research will lead to the design and development of methods that can be used to design new microelectronics structures for smart home. The basic method will be the measurement of the chromaticity of the incident radiation and the regulation of lighting.
Tutor: Šteffan Pavel, doc. Ing., Ph.D.
The topic is focused on the study of lithium-ion accumulators and new post-lithium technologies such as Li-S or Na-Ion accumulators. The aim of this work will be to propose methods of the preparation and subsequently preparation, characterization and optimization of electrode materials for post-lithium systems using graphene, graphene oxide and other carbon structures.
Tutor: Kazda Tomáš, doc. Ing., Ph.D.
The topic is focused on the study of electro and magneto-hydrodynamic phenomena in an electron microscope. The aim will be to build the coupling equations between the interactions of the physical fields describing this phenomenon and to apply them in hydrodynamics. The results obtained in this way should help with the constraints and optimizations of the SEM and ESEM electron microscope.
Tutor: Vyroubal Petr, doc. Ing., Ph.D.
Study the impact of environmental conditions on electronic components that are used to construct satellites on low orbits. Design and fabricate a test chamber to simulate these conditions. Select a set of basic electronic components to undergo extensive tests and evaluate the results of these tests. Based on the results of the test, design a methodology for selecting the space components.
Tutor: Háze Jiří, doc. Ing., Ph.D.
A cochlear implant represents an electronic device which can at least partially return hearing ability to the people with hearing disorder or loss. Current cochlear implants compose of outer part including microphone, sound processor and transmitting coil, and inner part including receiver coil and field of electrodes connected to hearing nerves. Recently several attempts of fully implatable cochlear implants integration have been done, but of not satisfactory enough parameters. The aim of this work is to design and by using of MEMS technology fabricate mechanical filter bank, for instance employing the piezoelectric principles, which can be utilized for acoustic signals decomposition in low-power fully implantable cochlear implants in the future.
Tutor: Prášek Jan, Ing., Ph.D.
Resonant converters using zero current switching provide the possibility of implementing a highly efficient voltage transformation. Reducing power losses is especially important in a vacuum environment where the effective cooling of active circuit elements is difficult. Because the cost of launch to space is very expensive, space agencies place great demands on the reliability of electronic devices and power supplies in particular. In order to analyze the behavior of the power supply under the influence of thermal stress or radiation and these aging-related effects, an adequate model must be used. Unlike conventional converters (forward, flyback) whose models exist and are accepted by space agencies, in the case of resonant converters, there are currently only analyzes. The aim of the doctoral thesis is the basic research of high efficiency and reliability control of resonant converters for space applications, especially their practical modeling.
Tutor: Pavlík Michal, Ing., Ph.D.
In the course of the research the student will start the study focussed on a physical phenomenon related with electron-gas interactions, namely generation of photons after excitation of gas by the signal electrons in high pressure environment of the environmental scanning electron microscope. New detector of photons will be simulated, designed and realised. After integration of it into ESEM, its function will be proved by many experiments.
The topic is focused on the issue of lithium-ion accumulators and their recycling. The aim will be to propose new methods and modify the methods currently used for the recycling of the lead-acid accumulators for the recycling of the lithium-ion accumulators in order to achieve the highest efficiency of recycling of the electrode materials. For the recycling process will be investigated new types of environmentally friendly procedures and solvents that can replaced currently used very aggressive and non-organic solvents. Total profit of recycled materials should exceed 70% of the original mass of the accumulator. The results obtained in this research will help to increase the long-term sustainability of the technology of lithium-ion accumulators needed to develop electromobility.