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An unknown semiconductor has Eg = 1.1 eV and Nc = Nv. It is doped with 10^15 cm^-3 donors where the donor level is 0.2 eV below Ec. Given that Ef is 0.25 eV below Ec, calculate ni and the concentration of electrons and holes in the semiconductor at 300K.
Consider an LTI(linear,time-invariant) system with input x(t) and output y(t). Suppose you know(measure) the step response, tha is , for x(t) =u(t), you know that y(t) = 2e^(-0.5t)*u(t). Find the output for the following different inputs
Calculating peak frequency deviation and Carson's rule bandwidth, A baseband signal has a frequency range from 50 Hz to 15.0 kHz. The signal is transmitted using frequency modulation. The FM transmitter has a modulation constant of 100 kHz per vol..
Two Random variables have a joint probability distribution function defined by F(x,y)=0 X 1y>1 A). Sketch this distribution function. B). Find the joint probability density function and sketch it.
Identify the steps involved in the delivery of a letter from the sender to the addressee. How are these steps similar to OSI layers' functions such as addressing, routing, resource sharing, error checking, and connectionless vs. connection-oriente..
Design a 1024x16 RAM using the 256x8 RAM blocks and neccessary combinational circuit. Note that, 256x8 RAM block has 8 bit data (DATA), 8 bit address (ADRS), chip select (CS), read/write (R/W) inputs and a three-state output bus.
20 SI fibers, 2 km long each, are spliced together for a 40 km link. Each fiber has a loss rate of 1-dB/km and a numerical aperture of 0.24. Each splice adds 0.5 dB of loss. A laser diode has a threshold current of 10 mA and emits at 3 mW/mA rate.
Explain in detail on the fabrication process of the FINFET. You must show a 3-dimensional view of FINFET and label the its L and W, the length and width of the gate.
1) For a forwarard converter, derive the minimum value of Vr - as a function of the input voltage Vg, the duty cycle D, and the turns ratio N1/N2 - that will cause the transformer magnetizing current to be reset to zero by the end of the switching..
1) A 1.5H inductor has a constant current of 2.5A. a) find the energy that it holds b) what is its voltage c) what is its energy after its current drops to zero and stays zero What power is dissipated when a 20 olhm resistor is connected to it
Desing a mod-16 asynchrous ripple up counter by using j-k flip-flops. You need to design a j-k flip flop first and use it as the component in mod-16 up counter design. Show both j-k flip-flop design implementation results .
sketch the spectrum
What should the signal definitions be for the equations, such that the minimal about of hardware (gates) are used assuming we have an abundance of NAND gates Show the signals definitions and resulting circuitry.
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