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For the following process steps.. assume that you use a positive photoresist and that etch selectivity is infinite. A composite plot of four photo masks is given in Fig. 3- 26. Assume that mask alignment is perfect. All contact sizes are 0.5 x 0.5 µm. The poly 1 and poly 2 areas are opaque. and the contact I and contact 2 areas are clear in the masks. Draw the cross section at the end of each process step along the cut line shown in the figure
Explain what is in a buffer. Discuss the function of a buffer. How will pH change when small amounts of acids or bases are added to the buffer solution?
The rate at which equilibrium is established depends on the rate at which collisions occur. Estimate the number of collisions/(m3 s) among all molecules of air at 1.0 atm pressure and 0 C.
Human saliva has a pH of approximately 6.8, and can be considered a: a)strong acid b)weak acid c)strong base d)weak base
Ions with a single electron such as He+, Li2+, and Be3+, are explain by the H atom wave functions with Z/a0 substituted for 1/a0, where Z is a nuclear charge. The 1s wave function becomes?
2A(g) + 3B(g) → A2B3(g) If 0.5 atm of gas A is mixed in an evacuated reaction flask with 1.0 atm of gas B, what is the final pressure in the reaction flask? (assume that the reaction goes to completion)
If the charge on the metal remained the same and nitrogen was substituted for oxygen, what would the formula and systemic name for the compound be
An extraction procedure specifies that an aqueous solution containing dissolved organic material be extracted twice with 10-mL portions of diethyl ether.
What is the total pressure in mmHg of the mixture after it is placed in a container 1/2 the volume of the original container?
Addition of hydrogen chloride (HCl) to 1-isopropenyl-1-methylcyclopentane yields 1-chloro-1, 2, 2-trymethylcyclohexane. Intend a mechanism for the reaction. Demonstrate complete structures of the intermediates as well as use curved arrows to indi..
Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide. CaCO3(s) CaO(s) + CO2(g)
In a battery, water is used as a salt bridge, and the two electrodes are Carbon and Aluminum. Find the standard reduction potential of the battery, and indicate which electrode is the cathode and anode.
A bridged ketone intermediate is formed and is isolable and 1,2,3,4-tetraphenylnaphthalene is the only product seen. What are there different thermodynamic factors that account for this
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