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A 12-inch diameter silicon wafer has a processable area that is circular with a diameter = 11.4 in. The IC chips that will be fabricated on the wafer surface are square with 0.75 in on a side, including an allowance for subsequent chip separation. However, the processable area on each chip is only 0.60 in by 0.60 in. The density of circuits within each chip's processable area is 100,000 circuits per square inch.
(a) How many IC chips can be placed onto the wafer?
(b) Using Rent's Rule with C = 3.8 and m = 0.43, how many input/output terminals (pins) will be needed for each chip package?
An moles of an ideal gas A and (1-n) moles of an ideal gas B, each at 1 atm, are mixed at total constant pressure. What ratio of A to B in the mixture maximizes the decrease in the Gibbs free energy of the system? If decreases in the Gibbs free energ..
a hollow shaft with outer and inner diameters respectively equal to 60mm and 25mm rotates at 240 rpm. determine the
Consider natural convection from a horizontal heated surface. Use Buckingham Pi Theorem to determine which dimensionless number you would used to investigate this phenomenon.
In a process, 10000 lb/hr of distilled water at 70F is conducted through a smooth tube between 2 reservoirs 30 ft apart and having a difference in elevation of 4 ft. What size tubing is needed?
Calculate the number of vacancies per cubic meter in gold at 900°C. The energy for vacancy formation is 0.98 eV/atom. Furthermore, the density and atomic weight for Au are 18.63 g/cm3 (at 900°C) and 196.9 g/mol, respectively.
jet-type pumps are sometimes used for special purposes such as to circulate the flow in basins in which fish are being
A gas turbine receives a mixture having the following molar analysis: 10% CO2, 19% H2O, 71% N2 at 720 K, 0.35 MPa and a volumetric flow rate of 3.2 m3 /s. The mixture exits the turbine at 380 K, 0.11 MPa. For adiabatic operation with negligible kinet..
a thin metal plate is insulated on the back and exposed to solar radiation on the front surface. the exposed surface of
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a gas in a piston-cylinder device is compressed through a combination of external force on the piston and cooling in
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