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For many years, MOS devices were scaled to smaller and smaller dimensions without changing the power supply voltage. Suppose that the width W, length L, and oxide thickness tox are all reduced by a factor of 2. Assume that VTN, vGS, and vDS remain the same. Calculate the ratio of the drain current of the scaled device to that of the original device. How has the power dissipation changed?
An x-y plane separates two materials. Material 1 covers z 0 region. There is no surface current or charge on the boundary between the two materials.
The display needs to tell you what direction you are about to move. The problem is WBNEC insists that you use a standard 7-Segment display. (Hint: You can tilt the display.) Design a decoder that will display up-down-left-right.
The maximum power dissipation in the NOR logic gate is to be 0.1 mW. - Determine the width-to-length ratios of the transistors.
A total of 33 MHz are allocated to a system which uses 2x25 kHz for full duplex (i.e., each channel is 50 kHz). What is the number of channels per cell?
Consider a system in which a data transfer over a bus takes 500 ns. Transfer of bus control in either direction, from processor to I/O device or vice versa, takes 250 ns. One of the I/O devices has a data transfer rate of 50 KB/s and employs DMA.
Swamping resistance means what? - where are they used?
Discuss why the primary of a power transformer would have excessive current if the secondary were short-circuited. Why would there be no voltage across the secondary if the primary is open. Explain how a transformer with a 1:1 turns ratio.
Adding dopants to a sample of silicon is found to reduce the Hall coefficient by a factor of 10 and increase the conductivity by a factor of 5. What effect has this dopant addition had on the mean free path
Consider the Hamming code defined by the parity-check matrix of Figure E7.8 (note that the columns of H are organized in increasing order of the corresponding decimal values, that is, H = [1 2 3 4 5 6 7]).
In the region of space for which x > 0, the x-component of a steady magnetic field is described by Bx = bx^2 where b is a positive constant that has dimensions of T/m^2. (a) Which of Maxwell's equations implies this cannot be the only component of ..
Write a VHDL module for a 4-bit adder, with a carry-in and carry-out, using an overloaded addition operator and std_logic_vector inputs and outputs.
Suppose host A and the DHCP server are separated by 2 kilometers and are connected by a direct link of R = 2 Mbps. Suppose the propagation speed over the link is 2.5×108 meters/sec. Neglecting the processing and queuing delays and assuming each pa..
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