Předmět Spectroscopic methods for non-destructive diagnostics (FEKT-DFY2A)
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Další informace
Cíl
The objective of the course is the study, both theoretical and experimental, of transport, relaxation and stochastic processes in solids. Students will learn the basic methods in reliability analysis, degradation and noise and dielectric spectroscopy. The key objective of the seminar is, however, not so much a mere acquisition of theoretical and experimental finding but rather a deeper understanding of the physical nature of all three spectroscopic methods and the ability to use and develop these methods for practical applications.
Osnova
Types of defects, surface and structural defects, methods of localisation, destructive and non-destructive defects and their identification Identification of defects from transport characteristics, V-A characteristics v in forward and reverse direction, excess current, generation-recombination process, degradation Fluctuation processes, noise spectral power density and its correlation with the type of defect, low-frequency noise as reliability and quality indicator, lambda parameter - mean time to failure and its quantification Noise density in semiconductor devices, noise in homogenous structures and in thin-layer and thick-layer resistors Partial discharges and noise in insulators and dielectrics, noise in capacitors Noise in semiconductor lasers, alloy and FET transistors RTS noise of semiconductor diodes with quantum holes and dots Theory for the design of a concept of a non-destructive diagnostic test Phenomenological description of the polarisation Types of relaxation mechanisms in polymers, glasses, ceramic systems and other dielectricsMathematical methods for the evaluation of dielectric data Degradation processes and their observation and monitoring by dielectric methods
Literatura
Není specifikováno.
Požadavky
MEng/MSc degree or equivalent in Electrical Engineering, Materials, Physics or Chemistry.
Garant
doc. Ing. Karel Liedermann, CSc.
Vyučující
doc. Ing. Karel Liedermann, CSc.