Zone refining, Physics

Assignment Help:

The semiconductor material is refined through a process is known as zone refining. It is used for the production of high purity crystals; silicon for example has a melting temperature, so any impurity present in the crystal decreases the melting temperature. Thus zone refining process is based on the principal that the effect of impurities on the melting point of a material will control the impurity concentration of impurities material the molten and the just frozen. By maintaining the melt at specific temperature a single crystal of the material can be inserted into the molten mass on the end of the rod. After which it is possible to withdraw the single crystal having the molten material adhere to the crystal and solidify maintaining the same orientation. The phase diagram of silicon with impurity near the low-concentration region. 


Related Discussions:- Zone refining

Explain zener diode, It is a highly doped p-n junction which is not smashed...

It is a highly doped p-n junction which is not smashed by high reverse current. The breakdown voltage is made very sharp. In the forward bias, the zener diode do as ordinary diode.

Derive the mathematical expression for normal shift, What do you mean by no...

What do you mean by normal shift? Derive the mathematical expression for normal shift produced when an object in a denser medium is viewed normally through air.

Vector Quantities: Importance and Application, What is the importance of ve...

What is the importance of vector quantities in real life? Cite some applications.

Lorentz transformation, Lorentz was the first to obtain the equations which...

Lorentz was the first to obtain the equations which relate the space and time coordinate of two frames of reference moving with a constant velocity with reference to each other and

Beer lambert''s law, what is meant by positive deviation of beer lambert''s...

what is meant by positive deviation of beer lambert''s low?

Explain the formula of the stefan law, Explain the formula of the Stefan la...

Explain the formula of the Stefan law. STEFAN'S LAW: P = σ AT 4 Here: P = Power radiated into W (J/s) σ = Stefan's Constant 5.67 x 10 -8 W m -2 K -4 A = Su

What is the rate of acceleration of the block, A 1.25-kg box is being pulle...

A 1.25-kg box is being pulled across a level surface where μk is 0.80. If the string is suddenly cut, causing the applied force to immediately go to 0.0 N, what is the rate of

Einstein relations by upward and downward transition, Determine the Einstei...

Determine the Einstein relations by upward and downward transition. While the system is in equilibrium, the upward and downward transition rates should be equal. N 1 ρ(ν) B

Magnitisam, what is magnitisam?how north pole and south pole takes part in ...

what is magnitisam?how north pole and south pole takes part in it?

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