Engineering, 13.02.2020 21:38 electrofy456
Researchers in microelectronics have found that a slight scratch on the surface of 5 pts. gallium arsenide causes a zinc dopant to diffuse into the arsenide. When these devices are baked at 850°C the dopant spreads. Its diffusion coefficient at this temperature is 10−11cm^2/s. If it spreads enough to increase the zinc concentrationto 10% of the maximum concentrationat 4×10^−4 cm away from the scratch the device is ruined. How long can we safely bake the device?
Answers: 2
Another question on Engineering
Engineering, 04.07.2019 18:10
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
Engineering, 04.07.2019 18:10
Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.
Answers: 3
Engineering, 04.07.2019 18:10
Burgers vector is generally parallel to the dislocation line. a)-true b)-false
Answers: 2
Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
Answers: 3
You know the right answer?
Researchers in microelectronics have found that a slight scratch on the surface of 5 pts. gallium ar...
Questions
Mathematics, 06.10.2019 22:10
Mathematics, 06.10.2019 22:10
Mathematics, 06.10.2019 22:10
Biology, 06.10.2019 22:10
Mathematics, 06.10.2019 22:10
Mathematics, 06.10.2019 22:10
Mathematics, 06.10.2019 22:10
Business, 06.10.2019 22:10
