Semiconductor Materials » Exercise – 2
65. Donor type impurities.
i : Have five valence electrons.
ii : Create excess free electrons.
iii : Are used to make n-type semiconductors.
iv : Have three valence electrons.
Of these statements
(a) i and iv are correct
(b) i, ii and iii are correct
(c) ii, iii and iv are correct
(d) iii and iv are correctSubject Name : Electronics Engineering Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant Electronics & Communication Engineering Books
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