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
Consider the open rotation of a diatomic molecule consisting of two atoms of mass and respectively divided by a distance presume that the molecule is rigid with center of mass fixe

theory and general purposes

Topics for the projects 1. Power supply design: One source, multiple source. Project process: 1.  Design(circuit analysis, diagram, list of components). 2.   Hardware e

Effect of Supply  Voltage a.As the applied  as voltage  is increased hysteresis loss increases. b.Eddy current losses are given by W e α f 2 t 2 B 2 m Where B m =

Q. Consider the balanced three-phase alternating currents, shown in Figure, to be flowing in phases a, b, and c, respectively, of the two pole stator structure shown in Figure with

E n e r gy Band Diagram Energy band diagram in qualitative form is sketched by following the following process: 1. The semiconductor device is supposed to be ma

Classify the following signals as energy signals or power signals. Find the normalized energy or normalized power of each. a. ? ? , 0, 0 0, at Ae t a x t elsewhere

Explain Practical Digital to Analog Converters? In several DSP applications, we must reconstruct an analog signal after the digital processing stage. This is completed using a

block diagram of eigen face,Viola & Jones Method,Bio-ID,RWTH-i6 Groups of People Database

design a single phase circuit from a supply point to a load