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Consider a p-type semiconductor at 300 K with band gap of 0.8 eV, acceptor levels lying 0.04 eV above the valence band, and Na = 2.51 × 1021/m3.
(a) How far above the valence band is the Fermi level?
(b) Roughly what is the density of valence holes?
(c) Roughly what is the density of electrons in the conduction band?
(d) Repeat parts (a), (b), and (c) for a temperature of 500 K.
(e) Roughly what is the temperature above which it becomes intrinsic?
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Create a checklist similar to the one presented in Section 14.9 which you could use in conjunction with a paper you are required to write for another course. Evaluate how well your checklist improved the quality of your paper.
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It is proposed to manufacture glass beads of 0.5mm by spraying them in 20 degree C air and allowing them to harden as they fall to the ground. Assume that the initial temp of the glass bead is 500 degrees C. The bead air heat coefficient h=324 W/m^2K..
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When does a data acquisition system have aliasing?
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