Fundamentals of Silicon Carbide Technology :Growth, Characterization, Devices and Applications ( Wiley - IEEE )

Publication subTitle :Growth, Characterization, Devices and Applications

Publication series :Wiley - IEEE

Author: Tsunenobu Kimoto  

Publisher: John Wiley & Sons Inc‎

Publication year: 2014

E-ISBN: 9781118313541

P-ISBN(Hardback):  9781118313527

Subject: TN304.1 elemental semiconductor

Keyword: nullnull

Language: ENG

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Description

A comprehensive introduction and up-to-date reference to SiC power semiconductor devices covering topics from material properties to applications

Based on a number of breakthroughs in SiC material science and fabrication technology in the 1980s and 1990s, the first SiC Schottky barrier diodes (SBDs) were released as commercial products in 2001.  The SiC SBD market has grown significantly since that time, and SBDs are now used in a variety of power systems, particularly switch-mode power supplies and motor controls.  SiC power MOSFETs entered commercial production in 2011, providing rugged, high-efficiency switches for high-frequency power systems.  In this wide-ranging book, the authors draw on their considerable experience to present both an introduction to SiC materials, devices, and applications and an in-depth reference for scientists and engineers working in this fast-moving field.  Fundamentals of Silicon Carbide Technology covers basic properties of SiC materials, processing technology, theory and analysis of practical devices, and an overview of the most important systems applications.  Specifically included are:

  • A complete discussion of SiC material properties, bulk crystal growth, epitaxial growth, device fabrication technology, and characterization techniques.
  • Device physics and operating equations for Schottky diodes, pin diodes, JBS/MPS diodes, JFETs, MOSFETs, BJTs, IGBTs, and thyristors.
  • A survey of power electronics applications, including switch-mode power supplies, motor drives, power converters for electric vehicles, and converters for renewable energy sources.
  • Coverage of special applications, including microwave devices, high-temperature electronics, and rugged sensors.
  • Fully illustrated throughout, the text is written by recognized experts with over 45 years of combined experience in SiC research and development.

This book is intended for graduate students and researchers in crystal growth, material science, and semiconductor device technology. The book is also useful for design engineers, application engineers, and product managers in areas such as power supplies, converter and inverter design, electric vehicle technology, high-temperature electronics, sensors, and smart grid technology.

Chapter

2.2 Electrical and Optical Properties

2.2.1 Band Structure

2.2.2 Optical Absorption Coefficient and Refractive Index

2.2.3 Impurity Doping and Carrier Density

2.2.4 Mobility

2.2.5 Drift Velocity

2.2.6 Breakdown Electric Field Strength

2.3 Thermal and Mechanical Properties

2.3.1 Thermal Conductivity

2.3.2 Phonons

2.3.3 Hardness and Mechanical Properties

2.4 Summary

References

Chapter 3 Bulk Growth of Silicon Carbide

3.1 Sublimation Growth

3.1.1 Phase Diagram of Si-C

3.1.2 Basic Phenomena Occurring during the Sublimation (Physical Vapor Transport) Method

3.1.3 Modeling and Simulation

3.2 Polytype Control in Sublimation Growth

3.3 Defect Evolution and Reduction in Sublimation Growth

3.3.1 Stacking Faults

3.3.2 Micropipe Defects

3.3.3 Threading Screw Dislocation

3.3.4 Threading Edge Dislocation and Basal Plane Dislocation

3.3.5 Defect Reduction

3.4 Doping Control in Sublimation Growth

3.4.1 Impurity Incorporation

3.4.2 n-Type Doping

3.4.3 p-Type Doping

3.4.4 Semi-Insulating

3.5 High-Temperature Chemical Vapor Deposition

3.6 Solution Growth

3.7 3C-SiC Wafers Grown by Chemical Vapor Deposition

3.8 Wafering and Polishing

3.9 Summary

References

Chapter 4 Epitaxial Growth of Silicon Carbide

4.1 Fundamentals of SiC Homoepitaxy

4.1.1 Polytype Replication in SiC Epitaxy

4.1.2 Theoretical Model of SiC Homoepitaxy

4.1.3 Growth Rate and Modeling

4.1.4 Surface Morphology and Step Dynamics

4.1.5 Reactor Design for SiC Epitaxy

4.2 Doping Control in SiC CVD

4.2.1 Background Doping

4.2.2 n-Type Doping

4.2.3 p-Type Doping

4.3 Defects in SiC Epitaxial Layers

4.3.1 Extended Defects

4.3.2 Deep Levels

4.4 Fast Homoepitaxy of SiC

4.5 SiC Homoepitaxy on Non-standard Planes

4.5.1 SiC Homoepitaxy on Nearly On-Axis {0001}

4.5.2 SiC Homoepitaxy on Non-basal Planes

4.5.3 Embedded Homoepitaxy of SiC

4.6 SiC Homoepitaxy by Other Techniques

4.7 Heteroepitaxy of 3C-SiC

4.7.1 Heteroepitaxial Growth of 3C-SiC on Si

4.7.2 Heteroepitaxial Growth of 3C-SiC on Hexagonal SiC

4.8 Summary

References

Chapter 5 Characterization Techniques and Defects in Silicon Carbide

5.1 Characterization Techniques

5.1.1 Photoluminescence

5.1.2 Raman Scattering

5.1.3 Hall Effect and Capacitance-Voltage Measurements

5.1.4 Carrier Lifetime Measurements

5.1.5 Detection of Extended Defects

5.1.6 Detection of Point Defects

5.2 Extended Defects in SiC

5.2.1 Major Extended Defects in SiC

5.2.2 Bipolar Degradation

5.2.3 Effects of Extended Defects on SiC Device Performance

5.3 Point Defects in SiC

5.3.1 Major Deep Levels in SiC

5.3.2 Carrier Lifetime Killer

5.4 Summary

References

Chapter 6 Device Processing of Silicon Carbide

6.1 Ion Implantation

6.1.1 Selective Doping Techniques

6.1.2 Formation of an n-Type Region by Ion Implantation

6.1.3 Formation of a p-Type Region by Ion Implantation

6.1.4 Formation of a Semi-Insulating Region by Ion Implantation

6.1.5 High-Temperature Annealing and Surface Roughening

6.1.6 Defect Formation by Ion Implantation and Subsequent Annealing

6.2 Etching

6.2.1 Reactive Ion Etching

6.2.2 High-Temperature Gas Etching

6.2.3 Wet Etching

6.3 Oxidation and Oxide/SiC Interface Characteristics

6.3.1 Oxidation Rate

6.3.2 Dielectric Properties of Oxides

6.3.3 Structural and Physical Characterization of Thermal Oxides

6.3.4 Electrical Characterization Techniques and Their Limitations

6.3.5 Properties of the Oxide/SiC Interface and Their Improvement

6.3.6 Interface Properties of Oxide/SiC on Various Faces

6.3.7 Mobility-Limiting Factors

6.4 Metallization

6.4.1 Schottky Contacts on n-Type and p-Type SiC

6.4.2 Ohmic Contacts to n-Type and p-Type SiC

6.5 Summary

References

Chapter 7 Unipolar and Bipolar Power Diodes

7.1 Introduction to SiC Power Switching Devices

7.1.1 Blocking Voltage

7.1.2 Unipolar Power Device Figure of Merit

7.1.3 Bipolar Power Device Figure of Merit

7.2 Schottky Barrier Diodes (SBDs)

7.3 pn and pin Junction Diodes

7.3.1 High-Level Injection and the Ambipolar Diffusion Equation

7.3.2 Carrier Densities in the "i'' Region

7.3.3 Potential Drop across the "i'' Region

7.3.4 Current–Voltage Relationship

7.4 Junction-Barrier Schottky (JBS) and Merged pin-Schottky (MPS) Diodes

References

Chapter 8 Unipolar Power Switching Devices

8.1 Junction Field-Effect Transistors (JFETs)

8.1.1 Pinch-Off Voltage

8.1.2 Current–Voltage Relationship

8.1.3 Saturation Drain Voltage

8.1.4 Specific On-Resistance

8.1.5 Enhancement-Mode and Depletion-Mode Operation

8.1.6 Power JFET Implementations

8.2 Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs)

8.2.1 Review of MOS Electrostatics

8.2.2 MOS Electrostatics with Split Quasi-Fermi Levels

8.2.3 MOSFET Current-Voltage Relationship

8.2.4 Saturation Drain Voltage

8.2.5 Specific On-Resistance

8.2.6 Power MOSFET Implementations: DMOSFETs and UMOSFETs

8.2.7 Advanced DMOSFET Designs

8.2.8 Advanced UMOS Designs

8.2.9 Threshold Voltage Control

8.2.10 Inversion Layer Electron Mobility

8.2.11 Oxide Reliability

8.2.12 MOSFET Transient Response

References

Chapter 9 Bipolar Power Switching Devices

9.1 Bipolar Junction Transistors (BJTs)

9.1.1 Internal Currents

9.1.2 Gain Parameters

9.1.3 Terminal Currents

9.1.4 Current–Voltage Relationship

9.1.5 High-Current Effects in the Collector: Saturation and Quasi-Saturation

9.1.6 High-Current Effects in the Base: the Rittner Effect

9.1.7 High-Current Effects in the Collector: Second Breakdown and the Kirk Effect

9.1.8 Common Emitter Current Gain: Temperature Dependence

9.1.9 Common Emitter Current Gain: the Effect of Recombination

9.1.10 Blocking Voltage

9.2 Insulated-Gate Bipolar Transistors (IGBTs)

9.2.1 Current–Voltage Relationship

9.2.2 Blocking Voltage

9.2.3 Switching Characteristics

9.2.4 Temperature Dependence of Parameters

9.3 Thyristors

9.3.1 Forward Conducting Regime

9.3.2 Forward Blocking Regime and Triggering

9.3.3 The Turn-On Process

9.3.4 dV/dt Triggering

9.3.5 The dI/dt Limitation

9.3.6 The Turn-Off Process

9.3.7 Reverse-Blocking Mode

References

Chapter 10 Optimization and Comparison of Power Devices

10.1 Blocking Voltage and Edge Terminations for SiC Power Devices

10.1.1 Impact Ionization and Avalanche Breakdown

10.1.2 Two-Dimensional Field Crowding and Junction Curvature

10.1.3 Trench Edge Terminations

10.1.4 Beveled Edge Terminations

10.1.5 Junction Termination Extensions (JTEs)

10.1.6 Floating Field-Ring (FFR) Terminations

10.1.7 Multiple-Floating-Zone (MFZ) JTE and Space-Modulated (SM) JTE

10.2 Optimum Design of Unipolar Drift Regions

10.2.1 Vertical Drift Regions

10.2.2 Lateral Drift Regions

10.3 Comparison of Device Performance

References

Chapter 11 Applications of Silicon Carbide Devices in Power Systems

11.1 Introduction to Power Electronic Systems

11.2 Basic Power Converter Circuits

11.2.1 Line-Frequency Phase-Controlled Rectifiers and Inverters

11.2.2 Switch-Mode DC–DC Converters

11.2.3 Switch-Mode Inverters

11.3 Power Electronics for Motor Drives

11.3.1 Introduction to Electric Motors and Motor Drives

11.3.2 DC Motor Drives

11.3.3 Induction Motor Drives

11.3.4 Synchronous Motor Drives

11.3.5 Motor Drives for Hybrid and Electric Vehicles

11.4 Power Electronics for Renewable Energy

11.4.1 Inverters for Photovoltaic Power Sources

11.4.2 Converters for Wind Turbine Power Sources

11.5 Power Electronics for Switch-Mode Power Supplies

11.6 Performance Comparison of SiC and Silicon Power Devices

References

Chapter 12 Specialized Silicon Carbide Devices and Applications

12.1 Microwave Devices

12.1.1 Metal-Semiconductor Field-Effect Transistors (MESFETs)

12.1.2 Static Induction Transistors (SITs)

12.1.3 Impact Ionization Avalanche Transit-Time (IMPATT) Diodes

12.2 High-Temperature Integrated Circuits

12.3 Sensors

12.3.1 Micro-Electro-Mechanical Sensors (MEMS)

12.3.2 Gas Sensors

12.3.3 Optical Detectors

References

Appendix A Incomplete Dopant Ionization in 4H-SiC

References

Appendix B Properties of the Hyperbolic Functions

Appendix C Major Physical Properties of Common SiC Polytypes

C.1 Properties

C.2 Temperature and/or Doping Dependence of Major Physical Properties

References

Index

EULA

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