Types of field-effect transistors, Electrical Engineering

Types of Field-Effect Transistors

The channel of a FET (field-effect transistor) is doped to produce either an N-type semiconductor or a P-type semiconductor. The drain and source might be doped of opposite type to the channel, in case of depletion mode FETs, or doped of identical type to the channel like in enhancement mode FETs. Field-effect transistors are as well distinguished by the method of insulation among the channel and gate. Types of FETs are:

  1. CNFET
  2. The DEPFET is a FET made in a fully-depleted substrate and works like a sensor, amplifier and memory node at the same time. It can be employed as an image (photon) sensor.
  3. The DGMOSFET is a MOSFET along with dual gates.
  4. The DNAFET is a specialized FET which works as a biosensor, using a gate made of single-strand DNA molecules to detect matching DNA strands.
  5. The Fast Reverse or Fast Recovery Epitaxial Diode FET that is abbreviated as FREDFET is a specialized FET designed to provide an extremely fast recovery (turn-off) of the body diode.
  6. The HEMT (High Electron Mobility Transistor), as well called an HFET (hetero structure FET), can be made by using band gap engineering in a ternary semiconductor like AlGaAs (Aluminium gallium arsenide). The fully depleted wide-band-gap material makes the isolation in between gate and body.
  7. The Insulated-Gate Bipolar Transistor that is abbreviated as IGBT is a device for power control. It comprises a structure akin to a MOSFET coupled along with a bipolar-like main conduction channel. These are usually used for the 200-3000 V drain-to-source voltage range of operation. Power MOSFETs (metal-oxide-semiconductor field-effect transistor) are still the device of choice for drain-to-source voltages of 1 to 200 V.
  8. The ISFET (ion-sensitive field-effect transistor) is an Ion-Sensitive Field Effect Transistor employed to calculated ion concentrations in a solution; while the ion concentration (such as H+, see pH electrode) changes, the current via the transistor will change accordingly.
  9. The Junction Field-Effect Transistor that is abbreviated as JFET uses a reverse biased p-n junction to separate the gate from the body.
  10. The Metal-Semiconductor Field-Effect Transistor that is abbreviated as MESFET substitutes the p-n junction of the JFET with a Schottky barrier; employed in GaAs and other III-V semiconductor materials.
  11. The Modulation-Doped Field Effect Transistor that is abbreviated as MODFET uses a quantum well structure made by graded doping of the active region.
  12. The Metal-Oxide-Semiconductor Field-Effect Transistor that is abbreviated as MOSFET utilizes an insulator (typically SiO2) between the gate and the body.
  13. The Nanoparticle Organic Memory Field-Effect Transistor abbreviated as NOMFET.
  14. The Organic Field-Effect Transistor abbreviated as OFET using an organic semiconductor in its channel.
Posted Date: 1/11/2013 12:42:43 AM | Location : United States







Related Discussions:- Types of field-effect transistors, Assignment Help, Ask Question on Types of field-effect transistors, Get Answer, Expert's Help, Types of field-effect transistors Discussions

Write discussion on Types of field-effect transistors
Your posts are moderated
Related Questions

Q. How to convert Decimal to Binary number? To convert the decimal to binary is slightly more difficult. There are two procedures (Methods) that may be used to convert from dec

Discuss different kinds of Automation and their Advantages? Illustrate the Detroit type of Automation? Discuss basic Principles and strategies automation? Discuss the industries

Illustrate the construction and working of:- (i) Pressure Thermometer (ii) Selective Radiation Pyrometer (iii) Thermistor (iv) Laws of Thermocouple

Effective Mass The electrons' "wave-particle" motion in a lattice is not the same as that for a free electron, because of the interaction with the periodic potential of the

star delta drawing with timer

Customer Indexing Scheme: Customer indexing and asset codification system provides a platform to enable the utilities to generate verifiable and validated data of consumers an


Q. Explain Inductorless Filters Inductorless (Active) Filters Filters (used to pass or eliminate certain frequency components of a signal) that are suitable for IC fabricati

How is 8255 (Programmable Peripheral Interface) configured if its control registercomprises 9B h.  Ans 9BH => 1001 1011 =>    b6b5=00-> Mode0    b4=0-> Port A as