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In discussion of the silicon MOSFET development, one set of the problems that hindered the technology was surface effects, these surface effects originate from dangling bonds at the surface of silicon.
a) calculate the number of si atoms/cm2 on the (100) surface of silicon. How many dangling bonds do you expect from your surface atom? How many dangling bonds/cm2 do you expect for the (100) si surface.b) Calculate the number of dangling bonds that may be included under the gate of a MOSFET for 45 nm technology.c) Oxidation, essential to MOSFET technology, help "passivate" the dangling bonds, what that means?d) Oxidation itself not enough to passivate the bonds. Describe an additional process step used in the fabrication of MOSFETs used to help passivate surface states.
In a test of a printed circuit board using a random test pattern, an array of 10 bits is equally likely to be 0 or 1. Assume the bits are independent. (a) What is the probability that all bits are 1s (b) What is the probability that all bits are 0s
Three parallel three-phase loads are supplied from a 207.85-V rms, 60-Hz three-phase supply. The loads are as follows: Load 1: A 15 hp motor operating at full load, 93.25 percent efficiency, 0.6 lagging power factor.
The cutoff frequencies of a series resonant circuit are 5400 Hz and 6000 Hz. a. Find the bandwidth of the circuit. b. If Qs is 9.5, find the resonant frequency of the circuit.
An LVDT is used in an accelerometer to measure seismic-mass displacement. The LvDT and signal-conditioning output is 0.31 mV/mm with a +/-2 cm maximum core displacement. The spring constant is 240 N/m, and the core mass is 0.05 kg.
The voltages at the generators buses are maintained at a magnitude of 1.0pu. The generator one (G1) is connected to bus 1. The generator two (G2) is connected to bus 2. The bus angle at bus 2 is taken as reference and is 00.
The sun is at an altitude of 30 degrees to the horizontal. What is the corresponding air mass What is the physical significance of air mass Mars has a very thin atmosphere containing primarily CO_2 and dust particles.
Design a filter for a biomedical instrument to eliminate DC (f = 0), 500 Hz tone, and its corresponding harmonics. The system sampling rate is 2,000 Hz. Place all the required poles at the origin to obtain a FIR filter.
A three phase bridge rectifier has a purely resistive load of R= 100 ohm and is supplied from a 280 V, 60 Hz supply. The primary and the secondary of the input transformer are connected in Y. Determine the average output voltage of the rectifier
a sample of 0 385 gram of cus was formed by heating a mixture containing 0.318 gram of copper and 1.00 gram of sulfure according to the reaction , Cu + S ---> CuS. A) is copper or sulfer the limiting reactant Explain B) calculate the theoretical an..
For the three transistor configurations namely, the common-eitter, the common-collector, and the common-base, compare the voltage gain and the current gain for each configuration.
How to find the damping ratio and undamped natural frequency given a 2nd-order differential equation.
A particle having charge q and mass m, initially at rest, is accelerated through a potential difference V0. Find the final speed (assume nonrelativistic).
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