Analysis of semiconductor devices, Electrical Engineering

Assignment Help:

Analysis of Semiconductor Devices

There are two complementary techniques of studying semiconductor devices:

  1. Via numerical simulation of the semiconductor equations.
  2. Via analytical solution of semiconductor equations.
  • There are a various range of techniques used for device simulation with some of them beginning from the drift diffusion formalism outlined earlier, where as others take a more fundamental approach beginning from the Boltzmann transport equation instead.
  • Generally, the numerical approach provides highly accurate results but needs heavy computational effort as well.
  • The output of device simulation in the type of numerical values for all internal variables needs comparatively larger effort to understand and extract significant relationships among the device characteristics.

 

The electrons in the valence band are not able of acquiring energy from external electric field and therefore do not contribute to the current. This band is not at all empty but may be partially or totally with electrons. On the contrary in the conduction band, electrons are seldom present. But it is probable for electrons to acquire energy from external field and thus the electrons in these bands contribute to the electric current. The forbidden energy gap is devoid of any of the electrons and this much energy is needed by electrons to jump from valence band to the conduction band.

Other words, in the case of conductors and semiconductors, like the temperature increases, the valence electrons in the valence energy move from the valence band to conductance band. Like the electron (negatively charged) jumps from valence band to conductance band, in the valence band there is a left out deficiency of electron that is called Hole (positively charged). Depending upon the value of Egap that is energy gap solids can be categorized as metals (conductors), insulators and semi conductors.


Related Discussions:- Analysis of semiconductor devices

Explain digital control systems, Q. Explain Digital control systems? Si...

Q. Explain Digital control systems? Significant progress has been made in recent years in discrete-data and digital control systems because of the advancesmade in digital compu

Guidelines from electricity regulatory commission, Guidelines from Electric...

Guidelines from Electricity Regulatory Commission The electricity companies have successfully adopted the guidelines issued through ERCs Utilities usually set their yearly KP

Determine the rate at which the magnitude falls, Q A high-pass filter circu...

Q A high-pass filter circuit is shown in Figure. Using a PSpice program and PROBE, obtain the Bode magnitude plot for the transfer function ¯H(f) = ¯V out / ¯V in for frequency ra

When both mt2 and gate are positive, When both  MT 2 and  Gate  are pos...

When both  MT 2 and  Gate  are positive In this  junction  P 1 N 1   and P 2 N 2   are forward  biased whereas junction N 1 P 2 is reverse biased. The gate current flows  thr

What is the need for bias stabilization in bjt, Q. What is the need for bia...

Q. What is the need for bias stabilization in BJT? BJT or bi-polar junction transistor is a three terminal, two junction semiconductor device and the conduction is due to the m

Coupling, advantages and disadvantages of direct and r c coupling

advantages and disadvantages of direct and r c coupling

Determine the performance of the circuits, With the development of cheap an...

With the development of cheap and reliable operational amplifiers the need to design amplifier circuits has disappeared. However it is still necessary to utilise these devices in a

Military services - application of software defined radio, Military Service...

Military Services - Application of Software Defined Radio With the use of SDR technology, the military can reduce radio development costs by providing a common platform to whi

Electrical machine, what happens when we apply DC supply to transformer pri...

what happens when we apply DC supply to transformer primary

Dc machince, what ''s part of dcmotor or dc generator

what ''s part of dcmotor or dc generator

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd