Lecture 30 quiz 1 the measured mobility vs temperature

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Unformatted text preview: f the Hall concentration. b) The actual mobility instead of the Hall mobility. c) The Hall factor. d) The contact resistance. e) Nothing – they are two different geometries for measuring the same quantities. Lecture 30 Quiz: 1) The measured mobility vs. temperature characteristic typically displays a maximum at a certain temperature. Which of the following statements is true at the maximum? a) The semiconductor becomes degenerate. b) The semiconductor becomes nondegenerate. c) The free carriers freeze out. d) Phonon scattering and ionized impurity scattering are equally important. e) Phonon scattering is much more important that ionized impurity scattering. !...
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