29.SSD(EE-2080)L29

29.SSD(EE-2080)L29 - Semiconductor to Metal Flux E C E v...

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SSD(EE-2080) Lecture 29 Dr. Shiv Govind Singh [email protected] Assistant Professor Electrical Engineering Semester 2, Y-2010/11
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Reference Text Book: 1. Physics of Semiconductor Devices, S. M. Sze , John Wiley & Sons (1981). 2. Solid State Electronics by Ben G. Streetman and Sanjay Banerjee , Prentice Hall International , Inc. 3. Semiconductor Physics and Devices, Donald A. Neamen, Tata Mcgraw-Hill Publishing company Limited. Reference Book: Fundamental of Semiconductor Device b K.N Bhatt
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I-V Characteristics (Forward Bias) φ M χ E C E v Vbi-V φ B Left Boundaries condition
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Unformatted text preview: Semiconductor to Metal Flux E C E v Vbi-V φ B Total Flux I-V Characteristics Diffusive vs Thermionic Emission Recombination/Generation/Impact‐ionization AC Response I+ i v a =v v Sinωt V A v a p n Forward Bias Conductance G Junction Capacitance Diffusion Capacitance in Schottky Diode No minority carrier transport therefore no diffusion capacitance Reducing diffusion capacitance in p‐n diode Short minority carrier lifetime in p-n junction diode equivalent to rapid energy relaxation in SB diode. Ohmic Contact vs. Schottky contacts Fermi‐level Pinning...
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