MESFET

About: MESFET is a research topic. Over the lifetime, 5493 publications have been published within this topic receiving 68808 citations. The topic is also known as: metal semiconductor field-effect transistor.

Gallium oxide (Ga2O3) metal-semiconductor field-effect transistors on single-crystal β-Ga2O3 (010) substrates

Abstract: We report a demonstration of single-crystal gallium oxide (Ga2O3) metal-semiconductor field-effect transistors (MESFETs). A Sn-doped Ga2O3 layer was grown on a semi-insulating β-Ga2O3 (010) substrate by molecular-beam epitaxy. We fabricated a circular MESFET with a gate length of 4 μm and a source–drain spacing of 20 μm. The device showed an ideal transistor action represented by the drain current modulation due to the gate voltage (VGS) swing. A complete drain current pinch-off characteristic was also obtained for VGS < −20 V, and the three-terminal off-state breakdown voltage was over 250 V. A low drain leakage current of 3 μA at the off-state led to a high on/off drain current ratio of about 10 000. These device characteristics obtained at the early stage indicate the great potential of Ga2O3-based electrical devices for future power device applications.

Semiconductor device fundamentals

Abstract: I. SEMICONDUCTOR FUNDAMENTALS. 1. Semiconductors -- A General Introduction. General Material Properties. Crystal Structure. Crystal Growth. 2. Carrier Modeling. The Quantization Concept. Semiconductor Models. Carrier Properties. State and Carrier Distributions. Equilibrium Carrier Concentrations. 3. Carrier Action. Drift. Diffusion. Recombination -- Generation. Equations of State. Supplemental Concepts. 4. Basics of Device Fabrication. Fabrication Processes. Device Fabrication Examples. R1. Part I Supplement and Review. Alternative/Supplemental Reading List. Figure Sources/Cited References. Review List of Terms. Part I Review Problem Sets and Answers. IIA. PN JUNCTION DIODES. 5. PN Junction Electrostatics. Preliminaries. Quantitative Electrostatic Relationships. 6. PN Junction Diode -- I-V Characteristics. The Ideal Diode Equation. Deviations from the Ideal. Special Considerations. 7. PN Junction Diode -- Small-Signal Admittance. Introduction. Reverse-Bias Junction Capacitance. Forward-Bias Diffusion Admittance. 8. PN Junction Diode -- Transient Response. Turn-Off Transient. Turn-On Transient. 9. Optoelectronic Diodes. Introduction. Photodiodes. Solar Cells. LEDs. IIB. BJTS AND OTHER JUNCTION DEVICES. 10. BJT Fundamentals. Terminology. Fabrication. Electrostatics. Introductory Operational Considerations. Performance Parameters. 11. BJT Static Characteristics. Ideal Transistor Analysis. Deviations from the Ideal. Modern BJT Structures. 12. BJT Dynamic Response Modeling. Equivalent Circuits. Transient (Switching) Response. 13. PNPN Devices. Silicon Controlled Rectifier (SCR). SCR Operational Theory. Practical Turn-on/Turn-off Considerations. Other PNPN Devices. 14. MS Contacts and Schottky Diodes. Ideal MS Contacts. Schottky Diode. Practical Contact Considerations. R2. Part II Supplement and Review. Alternative/Supplemental Reading List. Figure Sources/Cited References. Review List of Terms. Part II Review Problem Sets and Answers. III. FIELD EFFECT DEVICES. 15. Field Effect Introduction -- the J-FET and MESFET. General Introduction. J-FET. MESFET. 16. MOS Fundamentals. Ideal Structure Definition. Electrostatics -- Mostly Qualitative. Electrostatics -- Quantitative Formulation. Capacitance-Voltage Characteristics. 17. MOSFETs -- The Essentials. Qualitative Theory of Operation. Quantitative ID - VD Relationships. ac Response. 18. Nonideal MOS. Metal-Semiconductor Workfunction Difference. Oxide Charges. MOSFET Threshold Considerations. 19. Modern FET Structures. Small Dimension Effects. Select Structure Survey. R3. Part III Supplement and Review. Alternative/Supplemental Reading List. Figure Sources/Cited References. Review List of Terms. Part III Review Problem Sets and Answers. Appendix A. Elements of Quantum Mechanics. Appendix B. MOS Semiconductor Electrostatics -- Exact Solution. Appendix C. MOS C-V Supplement. Appendix D. MOS I-Vsupplement. Appendix E. List of Symbols. Appendix M. MATLAB Program Script.

Semiconductor Device Modeling with Spice

Abstract: From the Publisher: With all the clarity and hands-on practicality of the best-selling first edition,this revised version explains the ins and outs of SPICE,plus gives new data on modeling advanced devices such as MESFETs,ISFETs,and thyristors. And because it's the only book that describes the models themselves,it helps readers gain maximum value from SPICE,rather than just telling them how to run the program. This guide is also distinctive in covering both MOS and FET models. Step by step,it takes the reader through the modeling process,providing complete information on a variety of semiconductor devices for designing specific circuit applications. These include: Pn junction and Schottky diodes; bipolar junction transistor (BJT); junction field effect transistor (JFET); metal oxide semiconductor transistor (MOST); metal semiconductor field effect transistor (MESFET); ion sensitive field effect transistor (ISFET); semiconductor controlled rectifier (SCR-thyristor).

A new empirical nonlinear model for HEMT and MESFET devices

Abstract: A large-signal model for HEMTs and MESFETs, capable of modeling the current-voltage characteristic and its derivatives, including the characteristic transconductance peak, gate-source and gate-drain capacitances, is proposed. Model parameter extraction is straightforward and is demonstrated for different submicron gate-length HEMT devices including different delta -doped pseudomorphic HEMTs on GaAs and lattice matched to InP, and a commercially available MESFET. Measured and modeled DC and S-parameters are compared and found to coincide well. >

Physics of Semiconductor Devices

Abstract: Introduction. Part I Semiconductor Physics. Chapter 1 Physics and Properties of Semiconductors-A Review. 1.1 Introduction. 1.2 Crystal Structure. 1.3 Energy Bands and Energy Gap. 1.4 Carrier Concentration at Thermal Equilibrium. 1.5 Carrier-Transport Phenomena. 1.6 Phonon, Optical, and Thermal Properties. 1.7 Heterojunctions and Nanostructures. 1.8 Basic Equations and Examples. Part II Device Building Blocks. Chapter 2 p-n Junctions. 2.1 Introduction. 2.2 Depletion Region. 2.3 Current-Voltage Characteristics. 2.4 Junction Breakdown. 2.5 Transient Behavior and Noise. 2.6 Terminal Functions. 2.7 Heterojunctions. Chapter 3 Metal-Semiconductor Contacts. 3.1 Introduction. 3.2 Formation of Barrier. 3.3 Current Transport Processes. 3.4 Measurement of Barrier Height. 3.5 Device Structures. 3.6 Ohmic Contact. Chapter 4 Metal-Insulator-Semiconductor Capacitors. 4.1 Introduction. 4.2 Ideal MIS Capacitor. 4.3 Silicon MOS Capacitor. Part III Transistors. Chapter 5 Bipolar Transistors. 5.1 Introduction. 5.2 Static Characteristics. 5.3 Microwave Characteristics. 5.4 Related Device Structures. 5.5 Heterojunction Bipolar Transistor. Chapter 6 MOSFETs. 6.1 Introduction. 6.2 Basic Device Characteristics. 6.3 Nonuniform Doping and Buried-Channel Device. 6.4 Device Scaling and Short-Channel Effects. 6.5 MOSFET Structures. 6.6 Circuit Applications. 6.7 Nonvolatile Memory Devices. 6.8 Single-Electron Transistor. Chapter 7 JFETs, MESFETs, and MODFETs. 7.1 Introduction. 7.2 JFET and MESFET. 7.3 MODFET. Part IV Negative-Resistance and Power Devices. Chapter 8 Tunnel Devices. 8.1 Introduction. 8.2 Tunnel Diode. 8.3 Related Tunnel Devices. 8.4 Resonant-Tunneling Diode. Chapter 9 IMPATT Diodes. 9.1 Introduction. 9.2 Static Characteristics. 9.3 Dynamic Characteristics. 9.4 Power and Efficiency. 9.5 Noise Behavior. 9.6 Device Design and Performance. 9.7 BARITT Diode. 9.8 TUNNETT Diode. Chapter 10 Transferred-Electron and Real-Space-Transfer Devices. 10.1 Introduction. 10.2 Transferred-Electron Device. 10.3 Real-Space-Transfer Devices. Chapter 11 Thyristors and Power Devices. 11.1 Introduction. 11.2 Thyristor Characteristics. 1 1.3 Thyristor Variations. 11.4 Other Power Devices. Part V Photonic Devices and Sensors. Chapter 12 LEDs and Lasers. 12.1 Introduction. 12.2 Radiative Transitions. 12.3 Light-Emitting Diode (LED). 12.4 Laser Physics. 12.5 Laser Operating Characteristics. 12.6 Specialty Lasers. Chapter 13 Photodetectors and Solar Cells. 13.1 Introduction. 13.2 Photoconductor. 13.3 Photodiodes. 13.4 Avalanche Photodiode. 13.5 Phototransistor. 13.6 Charge-Coupled Device (CCD). 13.7 Metal-Semiconductor-Metal Photodetector. 13.8 Quantum-Well Infrared Photodetector. 13.9 Solar Cell. Chapter 14 Sensors. 14.1 Introduction. 14.2 Thermal Sensors. 14.3 Mechanical Sensors. 14.4 Magnetic Sensors. 14.5 Chemical Sensors. Appendixes. A. List of Symbols. B. International System of Units. C. Unit Prefixes. D. Greek Alphabet. E. Physical Constants. F. Properties of Important Semiconductors. G. Properties of Si and GaAs. H. Properties of SiO, and Si3N. Index.