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Original title in Czech: Mikroelektronika a technologieFEKTAbbreviation: PP-METAcad. year: 2016/2017
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 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.
The aim of the work is focused to design new microelectronics structures for smart cities. This work will target on using new circuit principles allowing a reduction of electricity consumption of these systems.
Tutor: Šteffan Pavel, doc. Ing., Ph.D.
Goal of this work is theoretical study, characterization and optimization of a sensor array made from an ultrathin single crystal silicon. This silicon structure can be connect to measure sheet resistance using Van der Pauw structure or with different configuration as Hall sensor it can measure an intensity of magnetic field. PhD student will create a microfluidic system above the sensor array which will allow him to define flow all fluids above the array, either in columns or in rows. An array will have minimal configuration of 4 x 4. Sensors will be measured using lock-in amplification technique to increase signal to noise ratio and thus optimize the limit of detection (LOD). PhD student will analyze the system and optimize the buffer solution to ensure that the Debye length in the solution will not hinder the measurement. Student will further analyze a cross liner type as well as its deposition from gas phase at elevated temperature. Basic system characteristic will be conducted using albumin. Further the student will use specific reaction to detect biomarker way that each column will have one biomarker and each row one sample for testing. Student will also determine the LOD of the system. Student will work closely with RECAMO, which has antibodies for cancer biomarkers.
Tutor: Neužil Pavel, prof. Ing., Dr., DSc.
By usage of luminescence method detect defects of solar cells and modules.
Tutor: Vaněk Jiří, doc. Ing., Ph.D.
Aim of this work is theoretical study, characterization and optimization of an array of gold electrochemical sensors fabricated using planar technology. PhD student will conduct detail analysis of electrochemical system behavior with he/she will also optimize their geometry. Student will form a microfluidic system above the electrode field, which will allow definition of fluid flow either to follow columns of sensors, or their rows. An array will have minimal configuration of 4 × 4 with four sensors in each testing points. Electrochemical sensors will be measured using lock-in amplification technique allowing to test 4 sensors a time. Fundamental sensor performance will be done using Fe2+/Fe3+ system. These results will be compared with classical system of cyclic voltammetry, as well as differential pulse voltammetry. PhD student will conduct experiment using specific reaction at gold surface and incubate suitable antibody, one type of antibody per column. Student will also test biomarkers at the surface covered with gold amalgam. Student will collaborate with RECAMO laboratory, which has antibody for cancer detection as well as with Biophysical Institute of Czech Academy of Science.
Items of work will be study properties of metals mostly ferromagnetic materials in eveporating process. Will be examinating vacuum evaporating process and their influence on mechanical and electrical properties og layers. Disertable core: Determine new techological procedure of evaporation, which enable required properties.
Tutor: Šandera Josef, doc. Ing., Ph.D.
In practice are using acid fuel cells only of PEM type, the main disadvantage is the high corrosivity of most metals. The main topic will be research of possible use of lead in fuel cells with acidic electrolyte.
Tutor: Bača Petr, doc. Ing., Ph.D.
The aim of the work is finding of new materials with good thermal properties as high temperature coefficient of resistance (TCR) or utilizing other phenomena as pyroelectricity or thermoelectricity to increase sensitivity to adsorbed infrared wavelengths. Materials will be deposited as thin films using PVD or CVD techniques. The material will be applied on tailored membranes using MEMS technology at TU Brno and evaluated. Specific materials such as aluminium nitride, can be provided by prof. Ulrich Schmid from TU Vienna.
Tutor: Hubálek Jaromír, prof. Ing., Ph.D.
This research is focussed on investigation of charging and discharging redox salt solutions that are capable of repeat charging and discharging. Initial research will focus on solutions of vanadium salts with the possibility to expand to other systems. The aim of the research will be to understand the relationship of the design and efficiency and longevity of the proposed systems. The experimental methods will include all the modern instrumental techniques of electrochemistry and materials science.
Tutor: Novák Vítězslav, doc. Ing., Ph.D.
Theoretical study failure phenomenas of solder joint using in electronic. 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 of fatique coefficients for specific application.
The work is focused on the study of photoelectroactivity of ceramic materials immersed in solution systems. These systems will be modified to understand the efficiency of their composition on photoactive current. This will be used for optimization of both the ceramic materials and the solutions, usable for photocatalytic conversion.
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.
Aim of this work is theoretical study, deposition and characterization of nanostructured material suitable for absorption of electromagnetic waves in range from visible spectrum up to THz region. Key task to be solved by a student is material deposition/growth at room temperature of the bolometer substrate. Deposited material has to be detected by nondestructive analysis such as FTIR and later on integrate is with membrane of MEMS bolometer. Finally student will optimize the material with respect to its maximum absorption in required spectrum and he/she will characterize the structure integrated with bolometer membrane. Characterization in visible spectrum of electromagnetic radiation can be conducted in BUT laboratories while characterization in THz range in collaboration with National Institute of Standard and Technology (NIST), Gaithersburg, USA, and in Naval Graduate School, Monterey, USA.
The aim of the thesis is to prepare nanostructured electrodes from various materials and their application in electrochemical analysis of DNA using redox or enzymatic labels. The key step lies in optimization of electrodeposition process of metals or alloys on rigid eventually flexible substrate via nanoporous membrane as well as the achievement of stability and high sensitivity of prepared biosensor. According to properties of the prepared surfaces, suitable detection techniques will be chosen and possibilities of application of the new sensors in detecting DNA hybridization, DNA damage and/or enzymatic processing will be tested. The bioanalytical study will be realized in Institute of Biophysics AV CR under supervision of Assoc. Prof. Miroslav Fojta.
Tutor: Drbohlavová Jana, doc. Ing., Ph.D.
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.
Tutor: Khateb Fabian, prof. Ing. et Ing., Ph.D. et Ph.D.
The work is directed to study of Surface Plasmon Resonance (SPR) phenomena for increasing absorption of infrared (IR) wavelengths. The work will be focused on modelling and simulation of absorption efficiency of several nanostructures to absorb wide range of IR wavelengths. The best results of simulation will be verified on device fabricated using MEMS technology and methods of nanostructuring (e-beam or FIB). The technology will be discussed with prof. Ulrich Schmid from TU Vienna.
Research of methodes and instrumentation for the study of problematic samples in ESEM.
Tutor: Neděla Vilém, doc. Ing. et Ing., Ph.D., DSc.
Nonconventional semiconductor structures for low-voltage integrated circuits. Theoretical design, simulations, and experimental evaluations of designed integrated circuits with low-voltage and low-power.
Tutor: Musil Vladislav, prof. Ing., CSc.
Goal of the research is finding of novel circuit principles in ASIC for biological signal processing and digitization regarding very low-power consumption for wearable electronics with battery power supply.
Tutor: Fujcik Lukáš, doc. Ing., Ph.D.
The aim of the work is focused on the development of silicon integrated supercapacitor based on new materials for electrodes and electrolytes. The study will consist of new principles of energy storage enabling faster charging. The materials will be characterized for the properties. The procedure of supercapacitor manufacturing on a chip using MEMS technology will be developed and evaluated. The procedure will be discussed with prof. Ulrich Schmid from TU Vienna.
In this work the student will become familiar about the current issues of energy storage in the electrochemical redox flow cells and monitoring the extent of their charge. The research will lead to the design and development of methods that can be used for continuous monitoring of the state of charge of such cells. Two basic principles will be used: optical tracking in those systems where the hue changes due to the state of charge and the electrochemical measurement in the other cases.
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. Use of organic semiconductors and printing technologies allows mass production of these systems.
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 system and to the design and development of new cells, not using the vanadium redox couples.
Dissertation topic relates to study the effect of the additional ultrasonic energy at the time of formation of the solder joint for leaded and lead-free alloys. The goal is the investigation of the effects on the microstructure of joints and its microstructural properties (mechanical, electrical, lifetime, reliability). It is expected the use of electron microscope and microhardness. It is also expected verification of method which is based on the formation of thermovoltages in various crystallographic areas solder joint.
Tutor: Řezníček Michal, Ing., Ph.D.
The topic of the proposed dissertation is focused on the definition, development and validation of intermetallic layers models in lead-free soldered joints. The aim of this work is the definition of the constants and the input data for simulation, develop a model, which including electrical, thermal and mechanical phenomena, and the compare its properties (strength, stress ...) to the selected type of real lead-free soldered joint. The ANSYS program will be used for modelling and simulation.
Tutor: Adámek Martin, Ing., Ph.D.
Modern circuit assembly techniques that use reflow soldering do not necessarily allow the solder to flow more than once. They guarantee the quality of results when the detailed analysis and optimization is fulfiled.
Tutor: Szendiuch Ivan, doc. Ing., CSc.
Zjistěte jaké jsou kladeny požadavky na obvody, které jsou používány v kosmickém průmyslu. Na základě podrobné rešerše navrhněte obvody pro zpracování signálů v kosmických sondách. Podrobně popište návrh, zohledněte vliv kosmického záření a další specifika vesmíru, která mohou funkci těchto obvodů ovlivnit. Na funkčním vzorku prověďte testovací měření, výsledky vyhodnoťte s teoretickými předpoklady.
Tutor: Háze Jiří, doc. Ing., Ph.D.
Design and application of intelligent microsystems in the Internet of Things, with a focus on low energy consumption
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. Dissertable core: Design of cooling system for power LED diodes with combination LTCC, Alumina with cooling channels for liquid. Student will measure on it.
Studies of advanced electrochemical power sources with a view to the Li-S battery. Prepare electrode materials based on sulfur with the addition of different types of carbon and the binders to form a composite electrode. Devise a process of preparation, perform their characterization using selected electrochemical and physical methods.
Tutor: Sedlaříková Marie, doc. Ing., CSc.
The goal of the research is to design the driving method of the optical emiters and tunable filters together with a processing of the detected optical signal for optical scanning spectrum analysis that would offer the high scanning frequency while maintaining the high accuracy. The research work will deal with the callibration of the frequency modulation of the optical emiters and filters. It shall lead to the design a verification of the adaptive emitter control for obtaining the time linear frequency sweep. Based on the analytical model of the system behaviour, the feed back control and signal processing algorithms will be designed and optimized to suppress the static and dynamic errors of the spectrum analysis. Resulting algorithm shall be verified in the experimental implementation. The reaserch will evaluate and suggest the ways for achieving the high accuracy and long term stability of the scanning spectrum analysis. References: [1] B. VENKATARAMANI, B.M. Digital signal processors: architecture, programming and applications. 2nd ed. New Delhi: Tata McGraw-Hill Pub, 2011. ISBN 978-007-0702-561. [2] HODGSON, Norman. Optical Resonators Fundamentals, Advanced Concepts and Applications. London: Springer London, 1997. ISBN 978-144-7135-951. [3] K. Kikuchi and T. Okoshi, "Wavelength-sweeping technique for measuring the beat length of linearly birefringent optical fibers," Opt. Lett. 8, 122-123 (1983) [4] C. Schmidt, A. Chipouline, T. Pertsch, A. Tünnermann, O. Egorov, F. Lederer, and L. Deych, "Nonlinear thermal effects in optical microspheres at different wavelength sweeping speeds," Opt. Express 16, 6285-6301 (2008)
The goal of the work is to design new sensor structures, based on special optical fibres that deliver new possibilities for the measurement of physical quantities as well as for monitoring the concentration or presence of liquids or gases. The design should be justified by the initial analysis of the achievable properties, realization options and the general state of art in the methods of optical fibre based sensors measurement. The work will aim at the research of sensor structures that employ the diffraction, interferometric and other techniques in conjunction with the microstructured fibres and other special fibre types. It is expected to assemble a mathematical model for selected sensor principles followed by the design proposal of technically feasible structures as well as the design of related measurement methods. The research should incorporate the verification of the proposed and simulated principles and methods, the preparation of the samples of the experimental sensor structures and their evaluation in laboratory conditions. References: Udd, E., Spillman Jr. W., B.: Fiber OPtic Sensors. J. Willey and sons 2011, ISBN 978-0-470-12684-4 R. Kashyap, “Fiber Bragg Gratings, 2nd Edition,” Fiber Bragg Gratings, 2nd Edition, 1-614 (2010). G. P. Agrawal, “Nonlinear Fiber Optics,” Nonlinear Science at the Dawn of the 21st Century, 542, 195-211 (2000).
Design and application of smart microsystems in the Internet of Things (IoT), focusing on wireless technology using IoT gateway with IPv6. Facility design (HW & SW) for sensor data acquisition and the development of applications for handling sensor data.
Tutor: Vrba Radimír, prof. Ing., CSc.
In this work, the student will become acquainted with electrical measurements (especially impedance, voltage and current distribution between the electrodes and flow of material in electrochemical cells). The student will also learn the principles of computer modelling "Finite Elements Modelling" using commercial software. Computational research will lead to elucidation of good practices for practical measurements, proposals for possible new practical geometries and to a feedback aimed to co-workers who design functional devices.
Fabrication of nanostructured refractory metals (Ta,Nb,Ti,W) and ultrathin metal oxides is of vast importance for development of next generation electronic components, especially DRAM and emerging non-volatile memory micro- and nanodevices (memristors). In the doctoral study we will intend to develop electrochemistry-based formation conception, to determine the growth mechanisms and explore physical, chemical, electrical and dielectric properties of self-organized arrays of nanostructured refractory metals (nanocolumns and nanotubes) synthesized via electrodeposition from non-aqueous solutions (ionic liquids) through nanopores in anodic-alumina thin films grown directly over the metal and mixed-metal substrates. Diverse nanostructured functional interfaces such as metal/insulator or metal/semiconductor, with and without top metallic electrodes, will be created and characterized towards potential applications in advanced electronic devices.