Solid State Devices & Components1. Unit-1
2. Unit-2
3. Unit-3
4. Unit-4
5. Unit-5
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Solid State Devices & Components SyllabusUnit – I Conduction in Semiconductor: Energy band Theory of Crystals Insulators. Semiconductors and metals Mobility and conductivity: Energy Distribution of in a Metal; Fermi – Dirac distribution; Density of states, Electron Emission from a metal. Electron and holes; carrier concentration in intrinsic semiconductors; Donor and Acceptor impurities; Fermi level in Extrinsic Semiconductors; Conductivity Modulation; Generation and Recombination of Charges; diffusion; continuity Equation; Injected Minority charges Potential Variation in a Graded semiconductors. Unit – II Dielectric Properties of Insulators: Static Field; static Dielectric Constant; Polarization; Dielectric Constant of Monatomic gases; Dielectric constant of solids. Properties of Ferro electric materials; Spontaneous polarization Piezo Electricity, Alternating fields; Electronic and lonic PolarizabilityFrequency Dependence; Complex Dielectric Constant of Non-Dipolar Solids; Dipolar Relaxation and Dielectric Losses. Unit - III Magnetic Properties of Materials: Summary of Concepts pertaining to Magnetic Fields; Magnetic Dipole moment of a Current Loop; Magnetization from a Macroscopic Point of View; Orbital Magnetic Dipole Moment and Angular Moment of Two Simple Atomic Models; Lenz’s: Induced Dipole Moment Classification of Magnetic Materials: Diamagnetism: Origin of Permanent Magnetic Dipole in matter: Paramagnetic Spain System: Properties of Ferromagnetic Materials: Spontaneous Magnetization and CurieWeiss Law; Ferromagnetic Domains and Coercive Forces; Anti Ferromagnetic and Ferrimagnetic Materials. Unit - IV Conduction in Metals: Ohm’s Law; Relaxation; Collision Time and Mean Free Path; Electron Scattering and Receptivity of Metals; Heat Developed in Current Carrying Conductors; Thermal Conductivity of Metals. Unit – V Components: Resistances: Resistive Elements: Terminals and Protective Means: Characteristics of Resistor: Characteristics of Different Capacitors and Their Selection Factors: Variable Capacitors: Precision Variable Capacitors: General Purpose Variable Capacitors: Trimmers: Characteristics of Electronics power Transformers and Audio Transformers: Design Consideration: Low and High Frequency Equivalent Circuits of Audio Transformers; High Frequency Equivalent Circuits of Components. |