Physics of Electronic Components

The course presents in a progressive way the main physical phenomena allowing to understand the functioning of electronic components and their use in electronic circuits. The first part introduces the physics of semiconductor materials and then, in the second part, deals with the characteristics of materials at equilibrium. The third part presents the main electronic transport phenomena. Finally, the fourth and fifth parts present the most important electronic components: diodes and transistors.

The objective of the course is to provide students with the basics for understanding the main characteristics and limitations of electronic components. 

By combining different concepts from solid state physics, quantum physics and semiconductor physics, students will gain the essential knowledge to understand the operation of current and future electronic components.

 

Skills:

• Understand the origin of differences between insulating, semiconducting and conducting materials
• Know how to read and interpret an energy band diagram, including energy gap, effective mass, electron and hole concentrations, Fermi energy
• Master the concept of doping to control the concentration of charge carriers
• To master the phenomena of drift and diffusion until the total calculation of a component
• Master the electrical characteristics of pn, Schottky and heterojunction diodes
• Master the electrical characteristics of field effect and bipolar transistors

Basics of classical physics

 

Recommended prerequisites*:

Basics of quantum physics

final exam + session 2

 

1. Semiconductor materials
2. Crystalline structures of solids
   1. Types of semiconductors
   2. Crystalline networks
   3. Atomic bonding
   4. Imperfections and impurities
3. Energy bands
   1. Formation of energy bands 
   2. Kronig-Penney model
   3. Relation energy-wave vector 
4. Electrical conduction
   1. Energy bands and current
   2. Drift current
   3. Effective mass 
   4. Hole concept
   5. Metals, insulators and semiconductors
5. Density of states
   1. Mathematical derivation
   2. Extension to the case of semiconductors 
6. Elements of statistical mechanics
   1. Statistical laws
   2. Fermi-Dirac function
   3. Fermi energy
7. Semiconductor at equilibrium
8. Load carriers
   1. Equilibrium distributions of electrons and holes 
   2. Intrinsic concentration
   3. Position of the intrinsic Fermi level
9. Dopants and energy levels
10. Extrinsic semiconductor
    1. Equilibrium distribution of electrons and holes
    2. Degenerate and non-degenerate semiconductors
    3. Donor and Acceptor Statistics
11. Load neutrality
12. Extrinsic Fermi level
13. Electronic transport
14. Carrier drift
    1. Drift current density 
    2. Mobility
    3. Conductivity
    4. Saturation speed
15. Carrier distribution
    1. Diffusion current density 
    2. Total current density
16. Gradual distribution of impurities 
    1. Induced electric field
    2. Einstein's relationship
17. Hall effect
18. Generation-Recombination 
19. Carriers in excess
    1. Continuity equation
    2. Diffusion equation
20. Diodes
21. Diode pn
    1. Structure of the pn junction
    2. Equilibrium pn junction
    3. pn junction in reverse and direct polarization
    4. Current-voltage characteristic
22. Schottky diode
    1. Metal-semiconductor barrier 
    2. Current-voltage characteristic
    3. Ohmic metal-semiconductor contact
23. Heterojunctions
    1. Materials for heterojunctions 
    2. Energy band diagram
    3. Two-dimensional electron gas
24. Transistors
25. Field effect transistor
    1. Operating principle
    2. Capacity-voltage characteristic
    3. Current-voltage characteristic
26. Bipolar transistor
    1. Operating principle
    2. Modes of operation
    3. Current-voltage characteristic

 

 

 

 

CM : 33h

            TD:

            TP:

            Terrain: