Electrotechnical Materials and Production Processes I
FEKT-BKC-EMV1Acad. year: 2018/2019
Materials for electrotechnology - composition, structure, manufacturing and application. Dielectric materials - polarization, loss and breakdown. Plastics, glass, ceramic and glass ceramic - types, properties, processing technology. Composites materials. Metals and resistive materials - classification, properties and manufacturing.
Semiconductors materials - classification, properties, physics and behaviour at equilibrium and non-equilibrium conditions. Manufacturing of semiconductors materials and basic semiconductor structures. Technological steps for manufacturing of integrated components.
Learning outcomes of the course unit
The student after completion of the course:
- Can explain the basic phenomena and understand the physical fundamentals in relation to the area of dielectric, conductive, resistive, magnetic and semiconductor materials.
- Can choose an appropriate material for a specific application
- Is familiar with classification, internal structure, composition and properties of semiconductor materials
- Is able to measure basic material properties and operate appropriate measurement devices
- Can describe manufacturing processes of dielectric materials, plastics, metals, semiconductors and can describe the process steps of basic semiconductor structures
Knowledge from subject BPC-MPE - "Materials for electrotechnics are supposed.
Recommended optional programme components
Recommended or required reading
Kazelle J. a kol.: Elektrotechnické materiály a výrobní procesy. Elektronická skripta 2015 (CS)
Jirák J., Rozsívalová Z.: Elektrotechnické materiály a výrobní procesy - laboratorní cvičení. Elektronická skripta 2003 (CS)
Šavel J.: Materiály a technologie v elektronice a elektrotechnice. BEN - technická literatura Praha 1999 (CS)
Bouda, V., Hampl. J., Lipták,J.: Materials for electrotechnics. Vydavatelství ČVUT, Praha, 2000, 207 s. ISBN 80-01-02233-1. (CS)
Planned learning activities and teaching methods
Lectures are conducted using PowerPoint presentations that include animations and short videos. Laboratory practise consist of 5 laboratory tasks focused on measuring and assessment of electrotechnically significant materials properties. Practise are accompanied by an open discussion with students about the topics of the laboratory tasks and practical numeric calculations useful in the design of electrical circuits are also included.
Assesment methods and criteria linked to learning outcomes
Attendance of the laboratory practice is obligatory. Students can obtain up to 30 points for completion of five laboratory hands-on tasks. The final exam takes place during the standard examination period and the students can earn up to 70 points. The exam is written.
Language of instruction
1. Introduction to materials for electrical and electronic devices: types of bonds, structure of molecules. Basic groups of electrotechnologically relevant materials. Dielectrics and insulators: physical nature and classification of dielectrics.
2. Polarization and permittivity, complex permittivity. Electric conductivity and conductivity of dielectric materials. Dielectric losses and loss factor. Dielectrics in strong electric fields.
3. Inorganic dielectrics: structure and classification. Asbestos, mica and mica products. Glass in electrical engineering. Rules for glass production. Electrical properties of glass. Types of glass.
4. Production and processing of glass. Special glass. Ceramics in electrotechnology. Silicate ceramics. Production and processing of ceramics. Oxide and oxygen-free ceramics.
5. Macromolecular substances - internal structure, morphology. Classification of plastics. Plastics for electrical engineering. Thermoplastics. Thermosets.
6. Plastics with increased heat resistance. Elastomers. Manufacturing of plastics. Modification and forming technology.
7. Conductive and resistive materials. Metal and oxide superconductors. Metallic materials for special applications. Construction materials. Metal forming. Manufacturing of wires and foils.
8. Magnetic Materials - Physical nature of magnetism, structure and magnetic losses. Ferro- and ferri- magnetic materials, manufacture of magnetic materials and ferrites.
9. Semiconductor materials: physical description, classification. Thermodynamic equilibrium. Thermodynamic non-equilibrium. Continuity equation.
10. Kinetics of the recombination process. Generation, recombination and lifetime of charge carriers. Electrostatic solution of PN junction.
11. Ideal V-I PN junction characteristic. C-V characteristics of the MOS structure. The metal-semiconductor junction.
12. Production of basic semiconductor materials. Preparation of the wafer. Epitaxial growth. Methods of doping semiconductor materials.
13. Technological steps of manufacturing semiconductor structures: Oxidation, lithography, etching, metallization.
The aim of the course is to acquaint the students with the fundamental functional materials that are used in manufacturing of electric and electronic devices.
Specification of controlled education, way of implementation and compensation for absences
Attendance of the laboratory practice is obligatory.
Classification of course in study plans
- Programme BKC-MET Bachelor's, 2. year of study, winter semester, 4 credits, compulsory