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Unformatted text preview: and acceptor impurities. An. A donor atom has five electrons in its outermost valence shell while an acceptor atom has only 3 electrons in the valence shell. 9. Describe the difference between majority and minority carriers. An. Majority carriers are those carriers of a material that far exceed the number of any other carriers in the material. Minority carriers are those carriers of a material that are less in number than any other carrier of the material. 10. Sketch the atomic structure of silicon and insert an impurity of arsenic as demonstrated for silicon in Fig. 17. An. Same basic appearance as Fig. 1.7 since arsenic also has 5 valence electrons (pentavalent). 11. Repeat Problem 10, but insert an impurity of indium. An. Same basic appearance as Fig. 1.9 since boron also has 3 valence electrons (trivalent )....
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This note was uploaded on 01/11/2011 for the course EE 2106 taught by Professor Ytchow during the Spring '07 term at City University of Hong Kong.
- Spring '07