DigbijoyIntro. Introduction to semiconductors. Introduction to energy bands. Fundamentals of band structure. Band structure (contd.) and Fermi-Dirac distribution. Density of states. Doping and intrinsic carrier concentration. Equilibrium carrier concentration. Temperature-dependence of carrier concentration. High doping effects and incomplete ionization. Carrier scattering and mobility. Low-field and high-field transport, introduction to diffusion. Drift-diffusion and trap statistics. Current continuity equation. Continuity equation (contd.) and introduction to p-n junction. Application of p-n junctions. Breakdown of junction and C-V profiling. p-n junction under equilibrium. p-n junction under equilibrium (contd.). p-n junction under bias. p-n junction under bias (contd.). p-n junction: generation-recombination currents. Introduction to Schottky junction. Schottky junction under equilibrium. Schottky junction under bias. Introduction to transistors: BJT. Basics of BJT. Working of BJT. Working of BJT (contd). Delays in BJT. MOS: Introduction. MOS: Capacitance-voltage. Ideal MOS system: derivation of threshold voltage. MOS C-V in more details. MOSFET â€“ An introduction. Gradual Channel Approximation: Derivation of I-V characteristics. Substrate bias effect and subthreshold conduction in MOSFET. Short Channel Effects in MOSFET. Introduction to compound semiconductors. Basics of heterojunctions. Band diagram of heterojunctions. Heterojunctions (contd).. Heterojunction transistors. III-nitrides. mod10lec44. mod10lec45. mod10lec46. mod10lec47. mod10lec48. mod10lec49. mod11lec50. mod11lec51. mod11lec52. mod11lec53. mod12lec54. mod12lec55. mod12lec56. mod12lec57. mod12lec58. mod12lec59.