Transistor - Field Effect Transistor and Bipolar Junction Transistor

University of Colorado Boulder via Coursera

Go to Course: https://www.coursera.org/learn/transistor-field-effect-transistor-bipolar-junction-transistor

Introduction

### Course Review: Transistor - Field Effect Transistor and Bipolar Junction Transistor #### Overview The course "Transistor - Field Effect Transistor and Bipolar Junction Transistor" offered on Coursera is an exceptional opportunity for students and professionals interested in deepening their understanding of modern semiconductor devices. Designed for academic credit as ECEA 5632, it is part of the Master of Science in Electrical Engineering program at CU Boulder. This makes it suitable not only for self-learners but also for those pursuing formal qualifications in electrical engineering. #### Learning Objectives By the end of the course, learners will gain the ability to: 1. Understand and analyze metal-oxide-semiconductor field effect transistors (MOSFETs) and bipolar junction transistors (BJTs). 2. Apply theoretical concepts to real-world problems related to electronic devices. These objectives promise a comprehensive understanding of the fundamental principles underlying the operation of two of the most crucial types of transistors used in electronics today. #### Syllabus Breakdown 1. **Metal-Oxide-Semiconductor (MOS) Device** This introductory module lays the groundwork by exploring the structure and behavior of MOS devices. Students will dive deep into critical concepts including: - Energy band diagrams - Various conditions (Flat band, Accumulation, Depletion, and Inversion) - Charge distribution and threshold voltage effects These topics are crucial for grasping how MOS technology enables the functioning of many modern electronic circuits. 2. **MOS Field Effect Transistor (MOSFET)** Building on the basics of MOS devices, this module covers the history, structure, and operational dynamics of MOSFETs. Key subjects include: - I-V characteristics and modes of operation - Effects such as channel length modulation, drain-induced barrier lowering, and mobility degradation This module is particularly relevant, as MOSFETs are widely used in power electronics and microelectronics. 3. **Bipolar Junction Transistor (BJT)** Transitioning to BJTs, this module tackles the complexities of this critical semiconductor device. Learners will explore: - Device structures and energy band diagrams - Key operational principles including current gain, leakage current, and switching characteristics Understanding BJTs is essential for anyone looking to work in areas that require control over analog signals. #### Why You Should Enroll The "Transistor" course is an outstanding resource for those who wish to solidify their grasp of semiconductor theory and applications. Here are a few reasons why you should consider enrolling: - **Academic Credit**: The ability to earn credit toward a master's degree can significantly enhance your academic journey, particularly if you are considering advancing your career in engineering. - **In-Depth Analysis**: The course offers an exhaustive analysis of both MOSFETs and BJTs, empowering you with knowledge that is highly regarded in the industry. - **Career Advancement**: As the electronics landscape continues to evolve with advancements in technology, proficiency in these fundamental components can set you apart from your peers in the job market. - **Flexible Learning**: The online format of Coursera allows you to learn at your pace, making it easier to balance coursework with other commitments. #### Conclusion In summary, the "Transistor - Field Effect Transistor and Bipolar Junction Transistor" course on Coursera is an invaluable learning resource for anyone pursuing a career in electrical engineering or wanting to understand the intricacies of transistor technology. With its rigorous content grounded in theory and practical applications, this course is highly recommended for students, professionals, and tech enthusiasts alike. Enroll today to build a solid foundation in one of the most pivotal areas of modern electronics!

Syllabus

Metal-Oxide-Semiconductor (MOS) Device

In this module on MOS devices, we will cover the following topics:, MOS device structure, energy band diagram for MOS device at equilibrium, Flat band condition, Accumulation, Depletion, and Inversion of MOS under bias, Energy band diagram and charge distribution for MOS in inversion, Quantitative model and relevant parameters, Energy band diagram with channel bias, Inversion layer charge, and Effect on threshold voltage of MOS in non-equilibrium, C-V characteristics: Charge distribution under different biasing conditions, C-V characteristics: Frequency dependence, Effects of oxide charge on flat band and threshold voltages in non-ideal MOS, and Types of oxide charge in non-ideal MOS.

MOS Field Effect Transistor (MOSFET)

In this module on MOSFETs (metal-oxide semiconductor field effect transistors), we cover the following topics: History of development of MOSFETs, Device structure, Device types, Circuit symbols, Long channel theory, I-V characteristics, Modes of operation, Channel length modulation, Body bias effect, Bulk charge effect, Sub-threshold conduction, Source/drain charge sharing in short channel devices, Drain induced barrier lowering, Subsurface punchthrough, Mobility degradation, Velocity saturation, Drain current saturation, Scaling of drain current with channel length, and Scaling of speed with channel length.

Bipolar Junction Transistor (BJT)

In this module on BJTs (bipolar junction transistors), we will cover the following topics: BJT Device structures, Energy band diagrams, Active bias, Leakage current, Recombination in base, Hoe injection, Non-uniform doping in base, Current gain, Switching with BJT, Single heterojunction bipolar transistor, Double heterojunction bipolar transistor, Non-uniform material, Early effect, Emitter bias dependence, High-level injection, Base, emitter and collector transit times, and RC time constant.