Intrinsic semiconductor, Electrical Engineering

Draw a graph illustrating how resistivity varies with temperature for an intrinsic semiconductor.

b) Gallium nitride, GaN, has an energy gap of 3.36 eV at 300 K. Calculate the wavelength of the light emitted by a GaN LED at this
temperature.
 
c) State the standard SI units for:

(i) mobility

(ii) diffusion coefficient (or diffusivity)

(iii) current density.
 
d) The p-type side of a pn junction diode is at a potential of -0.4 V and the n-type side at a potential of +0.3 V. A hole moves from the n-type side to the p-type side. What is the change in the potential energy of the hole in electron volts?

e) State three advantages of ion implantation over diffusion, as a means of introducing additional dopant into a wafer.

f)  Explain why the gate current in an MOS transistor is extremely small and give a typical value for this current. 
g)  The terminal voltages for an n-channel enhancement MOS transistor with VT = 0.5 V are:

VG = 5 V

VS = 3 V

VD = 4 V

Determine whether the channel in the device is pinched off in this situation.

Posted Date: 2/27/2013 1:49:43 AM | Location : United States







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

Write discussion on Intrinsic semiconductor
Your posts are moderated
Related Questions
What is hall effect?

what component will be use for making or logic gates.

(a) Design a 2 nd  order Sallen and Key low pass active filter with the following characteristics: Nominal Cut-off Frequency: 1.6 kHz Variable Gain: 0 to 7.5 dB You may a

Q. What are frequency response curves? How are they made? Every amplifier has a frequency-response curve associated with it. They provide a "picture" of the performance of an a

Explain implicit data addressing mode (with examples) available in microprocessors. Implicit Mode: Does not exactly give an operand. Instruction implicitly gives the o

use of ranging and attenuator circuit

What are advantages of segmentation ? However because the segment register is 16 bit broad and the memory requires 20 bits for an address the 8086 appends 4 bits segment reg

Q. Explain Analog communication system? Analog signals in an analog communication system can be transmitted directly via carrier modulation over the communication channel and d

Voltage Quality Standards - KPI The term voltage quality (or power quality) is an umbrella concept for a variety of disturbances within a power system. The quality of delivere

Explain the Cylindrical or Round Rotors? All synchronous machines have a similar stator design and it is actually the rotor construction that makes them different. The rotor is