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
L filters: An L filter contains two reactive elements that are one in series and one in parallel. T and π filters: Main article: Capacitor-input filter

Q. Working of Field-effect transistors? Field-effect transistors (FETs) may be classified as JFETs (junction field-effect transistors), depletion MOSFETs (metal-oxide-semicondu

Questions: (a) Suppose a 100 kHz switching power supply. (i) Evaluate the magnitude of the wave impedance of the radiated field of a very short wire in the switching power s

what do we mean when we say that an equation is dimensionally correct?

(a) Consider the following transmission line with the reactance X1 placed across the input. It is being driven with a frequency ω such that the length of the line is λ/4. W

what is the time of short circuit ?

Explain iron and silicon iron alloys. Iron: Galvanised steel and iron wires that are usually used for earth conductor in low voltage distribution systems may also be utilize

Q. Explain the term total harmonic distortion. Describes the functionary of a total harmonic distortion analyzer. Total Harmonic Distortion: Nonlinear behaviors of circuit el

Question: (a) Describe the following terminologies: i. Branch ii. Branch Prediction iii. Branch Predictor iv. Branch Misprediction (b) Consider that 15% of instructi

Draw and discuss power failure detection circuit interrupt NMI. The non-maskable interrupt (NMI) is an edge-triggered input which requests can interrupt upon the positive-edge.