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viva questions p n junction experiment with answer


Posted by:
Created at: Sunday 14th of October 2012 09:00:36 AM
Last Edited Or Replied at :Sunday 14th of October 2012 09:00:36 AM
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viva que..................[:=> Show Contents <=:]



course viva questions for b tech computer science


Posted by:
Created at: Saturday 29th of September 2012 09:17:17 PM
Last Edited Or Replied at :Saturday 29th of September 2012 09:17:17 PM
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Minimax algorithm, Data structures, Operatin..................[:=> Show Contents <=:]



Fabrication of P-N JUNCTION DIODE


Posted by: seminar addict
Created at: Thursday 02nd of February 2012 12:54:46 AM
Last Edited Or Replied at :Thursday 08th of November 2012 01:26:11 AM
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nductor material form the basis of electronics devices like radio, TV, computer, mobile.


IC- FABRICATION TECHNOLOGY
2.1 Introduction:-
To realize Semiconductor devices or an integrated circuit an adequate set of technological steps is required that allows the realization of the same on top surface of a semiconductor wafer.

IC fabrication technology is the process used to create the integrated circuits (silicon chips) that are present in everyday electrical and electronic devices. It is a multiple-step sequence of photographic and chemical processing steps during w..................[:=> Show Contents <=:]



Physics Lab Viva Voce Questions and its answers Laser Parameters


Posted by: seminar addict
Created at: Monday 16th of January 2012 03:57:19 AM
Last Edited Or Replied at :Monday 12th of May 2014 11:34:12 AM
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ally fabricated pn junction diode. It emits laser light when it is
forward biased.

2. What is LASER?
The term LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device
which produces a powerful, monochromatic collimated beam of light in which the waves are coherent.

3. What are the characteristic of laser radiation?
Laser radiations have high intensity, high coherence, high monochoromation and high directionality
with less divergence.


AIR WEDGE



1.What is meant by interference of light?
When the two waves superim..................[:=> Show Contents <=:]



Junction Diode


Posted by: seminar class
Created at: Thursday 07th of April 2011 02:27:20 AM
Last Edited Or Replied at :Thursday 08th of November 2012 01:26:00 AM
pn junction diode, special purpose diode ppt , pm junction diode,
des (The PN Junction)
 If a piece of intrinsic silicon is doped so that half is n-type and the other half is p-type, a pn junction forms between the two regions as indicated in on the first slide
 The p region has many holes (majority carriers) from the impurity atoms and only a few thermally generated free electrons (minority carriers).
 The n region has many free electrons (majority carriers) from the impurity atoms and only a few thermally generated holes (minority carriers).
 Diodes (The PN Junction)
 Diodes (The Depletion Region)
 Diodes (The Barrier Potenti..................[:=> Show Contents <=:]



PN-Junction Diode Characteristics ppt


Posted by: seminar surveyer
Created at: Saturday 22nd of January 2011 02:22:00 AM
Last Edited Or Replied at :Thursday 08th of November 2012 01:26:22 AM
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ics

Forward Bias --- External battery makes the Anode more positive than the Cathode --- Current flows in the direction of the arrow in the symbol.
Reverse Bias --- External battery makes the Cathode more positive than the Anode --- A tiny current flows opposite to the arrow in the symbol.

Series-Connected Diodes

Use 2 diodes in series to withstand higher reverse breakdown voltage.
Both diodes conduct the same reverse saturation current, Is.

Diode Characteristics
Due to differences between devices, each diode has a different voltage across it.
Would like to ..................[:=> Show Contents <=:]



Electrical Characteristics of n-ZnOp-Si Heterojunction Diodes


Posted by: seminar projects crazy
Created at: Saturday 13th of June 2009 03:37:49 PM
Last Edited Or Replied at :Saturday 13th of June 2009 03:37:49 PM
Diodes, Heterojunction , n ZnOp Si, Characteristics , Electrical, band structure of zno si heterostructure , heterojunction in zno p si pdf, band parameter of semiconducter used in heterostructure , diode bas sur zno si n heterojonction these, l heterojonction zno si pdf , zno si heterojunctions,
extensively including the epitaxial growth
53
of ZnO on Si (100) substrates,
21
ZnO/p-Si
54
diodes,
22“24
ZnO:N/p-Si heterostructures
25
etc.
55
Studies on the electrical transport properties of
56
ZnO/p-Si heterojunctions with different dopants in
57
the p-Si
26
and ZnO
27
have also been reported
58
recently. However, due to the complex nature of
59
the carrier transport across the interfaces of the
60
n-ZnO/p-Si heterojunction, the transport proper-
61
ties of these heterostructures are not yet well
62
understood and are even debatable. We have fur-
63
..................[:=> Show Contents <=:]



Electrical Characteristics of n-ZnOp-Si Heterojunction Diodes


Posted by: seminar projects crazy
Created at: Saturday 13th of June 2009 03:34:37 PM
Last Edited Or Replied at :Saturday 13th of June 2009 03:34:37 PM
Diodes, Heterojunction , n ZnOp Si, Characteristics , Electrical, impedance heterojunction ,
of electrons from the ZnO side to the
296
p-Si side. Hence the forward voltage required for
297
considerable forward current decreased and thereby
298
the turn-on voltage decreased. This seems to explain
299
the decrease of the turn-on voltage for the n-ZnO/
300
p-Si heterojunction fabricated at the lower oxygen
301
pressure.
302
The variation of the turn-on voltage with oxygen
303
pressure can also be explained with calculated
304
values of series resistance. Due to series resistance,
305
a part of the applied voltage is effectively wasted
306
and hence a larger applied..................[:=> Show Contents <=:]



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