Reference no: EM13883484
Please answer these simple five questions on fabrication engineering at the micro and nanoscale.
1- Air pressure decreases as altitude increases. At 18,000 ft above mean sea level, the atmospheric pressure is about half of what it is at sea level (i.e.,760 torr). The temperature also decreases by about 70 C. Does this change the speed distribution of the air molecules? Does it change the mean free path? How much does each change?
2- Why are entrainment pumps generally not used in processing with toxic gases?
3- It is possible to determine the chemical composition of a plasma by measuring the optical emission spectrum (i.e., optical intensity as a function of wavelength). Explain why.
4- Referring to High Density Plasma, if a process relies on ion bombardment of the wafers, would you want to put the wafers on the electrode connected to the chamber walls or on the electrode that is isolated from the chamber walls?
5- For a certain process, the maximum allowable pressure is 0.20 torr. If a D65 rotary vane pump is used and conductance losses in the vacuum system can be ignored; what is the maximum permissible inlet flow in standard cubic centimeters per minute?
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Telephone transmission rate
: The Telephone transmission rate at the T3 level is 44.7 Mb/s. Each telephone message accupies 64,000b/s. How many simultaneous message could be set along this system?
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Annual increase in the value of certificate
: Suppose that in 2010, a $5 silver certificate form 1898 sold for 12,200. For this to have been true, what would the annual increase in the value of the certificate have been?
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Bond equivalent yield and the effective annual return
: A Treasury bill with 132 days to maturity is quoted at 96.540. What is the bank discount yield, the bond equivalent yield, and the effective annual return? (Do not round intermediate calculations. Enter your answers as a percent rounded to 3 decimal ..
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Psychological stages of dying
: Elisabeth Kübler-Ross proposed five psychological stages of dying: denial and isolation, anger, bargaining, depression, and acceptance
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Questions on fabrication engineering
: Please answer these simple five questions on fabrication engineering at the micro and nanoscale.
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Sustainability in production processes and packaging
: sustainability in production processes and packaging
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Expect this equipment to produce cash flows
: Kingston, Inc. management is considering purchasing a new machine at a cost of $3,899,699. They expect this equipment to produce cash flows of $751,375, $875,879, $861,708, $1,095,836, $1,206,531, and $1,338,680 over the next six years. If the approp..
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The errors chandra made in his income statement
: Prepare a report for Chandra explaining the errors he made in his income statement and review the performance of Bendigo Fencing Company in 2014 and make a recommendation as to whether Chandra's overdraft facility should be cancelled.
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The appropriate cost of capital
: Hathaway, Inc., a resort company, is refurbishing one of its hotels at a cost of $7,424,321. Management expects that this will lead to additional cash flows of $1,768,100 for the next six years. What is the IRR of this project? If the appropriate cos..
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