324 فيز

....325Physics (Electronics): (3: 2+1)
..325Physics (Electronics): (3: 2+1)
Introduction to semiconductors:
Ionic, Covalent and Metallic bonding . semiconductors , Insulators and Metals . the effective mass.
Donors and Acceptance ,

band diagram of a semiconductor 

Fermi level, Carrier  Concentration equations.
Properties of semiconductors:
Carrier drift, Carrier mobility. Saturated drift velocity. Mobility variation with temperature. Drift current equations. Semiconductors and diagrams with on electric field present. Carrier
Diffusion. The flux equation. Total current density. Carrier recombination and diffusion length.
The diode and its Applications:
The p – n junction in thermal equilibrium, the p – n junction barrier height, Depletion approximation, electric field and potential. Mathematical formulation. One – sided, abrupt p – n junction. Applying bias to the p – n junction qualitative explanation of forward bias. The ideal diode equation.
Half – wave & Full – wave rectifiers, Power supply filter and Regulators. Zener diode with application as voltage regulators.
Bipolar junction Transistors (BJT):
Transistor structure, Basic transistor operation, Transistor characteristic and parameters, The transistor as an Amplifier, The transistor as a switch.
BJT Bias Circuit with application:
The DC operating point, Voltage divider bias. Amplifier operation, Transistor AC equivalent circuits. The common – Emitter Amplifier.
The Field – effect Transistor (FETS):
The JFET,  JFET characteristics and parameters, JFET biasing. The MOSFET, MOSFET characteristics parameters. MOSFET biasing.
References:

• Introductory Semiconductor Device Physics, Greg Parker, 1994 Prentice Hall.
• Electronic Devices, by: Thomas L. Floyd. 6^th edition, 2003. Prentice Hall.