Semiconductors, Electrical Engineering

Semiconductors

  1. Conductivity in among those of metals and insulators.
  2. Conductivity can be changed over orders of magnitude through changes in temperature, optical excitation, and impurity content (doping).
  3. Usually found in column IV and neighboring columns of the periodic table.
  4. Elemental semiconductors: Si, Ge.
  5. Compound semiconductors:

Binary:

GaAs, AlAs, GaP, etc. (III-V).

ZnS, ZnTe, CdSe (II- VI).

SiC, SiGe (IV compounds).

1) Ternary: GaAsP

Quaternary: InGaAsP

2) Si extensively used for rectifiers, transistors, and ICs.

3) III-V compounds extensively used in optoelectronic and high-speed applications.

Posted Date: 1/11/2013 2:43:50 AM | Location : United States







Related Discussions:- Semiconductors, Assignment Help, Ask Question on Semiconductors, Get Answer, Expert's Help, Semiconductors Discussions

Write discussion on Semiconductors
Your posts are moderated
Related Questions
which type of ic package is more advantageous,suitable and versatile

Q. Current-carrying conductors? Current-carrying conductors, when placed in magnetic fields, experience mechanical force. Considering only the effect of the magnetic field, the

Define the Gauss Seidel Method The Gauss-Seidel method is an iterative method in which the voltage of each node is calculated in turn using the most up to date voltages for the

Decimal to Binary Coded Decimal Conversions Step1. Separate the digits in the decimal number Step2. Express each of the digits in their binary equivalent Step3. Combine all o

An automotive manufacturing company is planning to bring out a new model of a compact car for the Indian market. One of the critical tasks is choosing an engine with a proper engin

Q. Analog Computers? Although not used as much as the digital computer (which nowadays forms the basic tool for numerical analysis and the solution of algebraic as well as diff

POP PSW Instruction It is similar to  above pop  instruction but instead of normal  register  pairs it uses PSW  as its operand. Program status word  comprises of the content

Direct data addressing mode (with examples) available in microprocessors. Direct Mode: Instruction comprises memory access. CPU accesses which location into memo

Conceive a system composed of a very large number N of distinguishable atoms at rest and mutually noninteracting, each of which has only two (nondegenerate) energy levels:0,ε>0 Let

Field effect transistor: Primarily difference between bit and jet is that bit transistor is a current controlled device while jet is a voltage controlled device.  Is a direct