Semiconductor Materials
Code
1849
Academic unit
Faculdade de Ciências e Tecnologia
Department
Departamento de Ciências dos Materiais
Credits
6.0
Teacher in charge
Isabel Maria Mercês Ferreira
Weekly hours
5
Total hours
52
Teaching language
Português
Objectives
The objective is to supply basic concepts of semiconductor materials and devices based on those materials to Physics, Physics Engineering, Materials Engineering and Electronic Engineering students. By doing so we aim to give science and engineering concepts necessary to the understanding of the electronic functionalities presented by the different categories of materials used to design and to fabricate electronic and optoelectronic devices. These devices normally work under control conditions of electron flow in an active semiconductor, either of crystalline or amorphous structure, but whose final performances are dependent on structure order, defects and composition.
Prerequisites
Necessary Physics I and Mat I. Recomended Physics Properties of Material and Chracterization of Nanomaterials
Subject matter
Introduction: Definition and characterization of the different types of semiconductors (crystalline polycrystalline; amorphous; nanocrystalline). Transport properties and physics behaviour of the different types of semiconductors. The transport equation and the characterization techniques used to determine the semiconductor properties.
Semiconductors devices: the pn and the Schottky junctions: structures in which can be based, functionality and applications. The bipolar (pnp, npn, piin) and the unipolar transistors (JFET, MESFET and MOSFET): performances, functionality and applications. Couple charge devices and non-volatile memories. Nanodevices.
Bibliography
Semiconductor Materials: apoitments of Rodrigo Martins and Isabel Ferreira
Labs guides and series of problems.
Introduction to Semicondutors Materials and Divices, M. S. Tyagi; Editor: Jonh Willy & Sons, 1991.
Microelectronic Devices, Edward S. Yang, McGraw Hill, N.Y., 1988.- Semiconductor Devices, J. Singh, McGraw-Hill, 1994.
Solid State Physics, S. Omar, Cambridge Students, U.K. 1978.
Electronic Processes in Non-Crystalline Materials, N.F. Mott and E.A. Davis, Claredon Press, Oxford, 1978.
Elements of Solid State Physics, M. N. Rudden and J. Wilson, ed. John Wiley & Sons Ltd, 1993.
Physics of Semiconductor devices, Michael Shur, ed. Prentice Hall, Londres, 1990.
Teaching method
In the theoretical lectures are analyzed the concepts needed to understand the physical principles of operation of semiconductor materials and devices made with these semiconductors. The theoretical concepts are then applied in practice by solving problems and also in laboratories that consists in the the determination of the electronic parameters of the main devices studied (pn juntion, pnp transistor, MOSFET transistor)
The teoretical classes are given with power point and blackboard for explaining some important aspects
Evaluation method
Accomplished through theoretical lectures, practical exercicies and laboratory, and the student effort is also evaluated by extra classroom work.
Frequency is given by the reports of the laboratory work.
Final Score = (2 * rating Tests + labs reports) / 3 or
Final Score = ((2* rate final Examination+ labs reports) / 3.