Diodes
Diodes. Impurity Atoms: Trivalent : Boron (B), Aluminum (Al), Gallium (Ga), Indium (ln). Has three (3) valence electrons. Known as an “Acceptor Impurity.” Pentavalent : Phosphorous (P), Arsenic (As), Antimony (Sb), and Bismuth (Bi). Has five (5) valence electrons.
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