ECE Purdue Semiconductor Fundamentals L4.6: Carrier Transport - Recap скачать в хорошем качестве

ECE Purdue Semiconductor Fundamentals L4.6: Carrier Transport - Recap

Table of Contents available below. This video is part of the course "Semiconductor Fundamentals" taught by Mark Lundstrom at Purdue University. The course can be found on nanoHUB.org at https://nanohub.org/courses/sfun or on edX at https://www.edx.org/course/semiconduc... . This course provides the essential foundations required to understand the operation of semiconductor devices such as transistors, diodes, solar cells, light-emitting devices, and more. The material will primarily appeal to electrical engineering students whose interests are in applications of semiconductor devices in circuits and systems. The treatment is physical and intuitive, and not heavily mathematical. Technology users will gain an understanding of the semiconductor physics that is the basis for devices. Semiconductor technology developers may find it a useful starting point for diving deeper into condensed matter physics, statistical mechanics, thermodynamics, and materials science. The course presents an electrical engineering perspective on semiconductors, but those in other fields may find it a useful introduction to the approach that has guided the development of semiconductor technology for the past 50+ years. Table of Contents: 00:00 Lecture 4.6: Unit 4 Recap 00:15 Unit 4 Learning Outcomes 02:03 Current equation (Landauer approach) 02:59 Transmission 03:59 Channels 05:06 How current flows (T = 0 K) 07:24 Fermi window under small bias 08:39 Small bias conductance 09:20 Small bias conductance at T = 0 K 10:06 Quantized conductance 11:07 Small bias conductance in the diffusive limit 12:16 Drift-diffusion equation 13:04 Drift velocity 14:49 Drift current 16:08 Diffusion current 17:22 Drift-diffusion equations 17:52 Validity of the DD equations 19:19 Recombination 20:43 Band-to-band (radiative) recombination 21:40 Auger recombination 22:23 SRH (defect-assisted) recombination 23:44 Recombination under low level injection 24:32 Multiple recombination processes 24:55 Recombination processes 25:55 Generation processes 26:46 SRH (defect-assisted) generation 27:54 Optical absorption and thermalization 29:11 Optical absorption in a direct gap semiconductor 30:12 Optical absorption in an indirect gap semiconductor 31:17 Summary: Unit 4 Learning Outcomes