dEe Aa No SpacingH Normal 1. Which statement is valid? a) The Schottky diode has
ID: 2293990 • Letter: D
Question
dEe Aa No SpacingH Normal 1. Which statement is valid? a) The Schottky diode has two semiconductor regions: one is heavily doped and the other is lightly doped. b) The Schottky diode has one semiconductor region and the other side is a metal. c) Both Schottky-junctions and Ohmic-junctions are metal-semiconductor contacts. d) Ohmic junctions form diodes. 2. Which statement is valid? For a Schottky diode, a) Schottky contacts behave as a diode, with forward region, reverse region, and break down region. b) The value for the saturation current depends on Richardson constant. c) Current flow mechanism in a Schottky diode is the same as that for p-n junction diode. d) Qhmic junctions form non-rectifying contact. 3. Which statement is valid? rk function is the energy difference between the vacuum level and the edge of the conduction band. b The work function is the energy difference between the vacuum level and the edge of the valence band. c) The work function is the energy difference between the vacuum level and the Fermi level. d) The work function is the energy difference between the vacuum level and the intrinsic Energy level. e) Schottky contacts are rectifying contacts, but ohmic contacts are non-rectifying contacts. 4. Which statement is valid? a) The electron affinity is the energy difference between the vacuum level and the edge of the conduction band b) The electron affinity is the energy difference between the vacuum level and the edge of the valence band c) The electron affinity is the energy difference between the vacuum level and the Fermi level d) The electron affinity is the energy difference between the vacuum level and the intrinsic Energy level.Explanation / Answer
1) c is valid answer.. Both are metal semiconductor contacts
2)schottky contact is rectifying contact and ohmic is non rectifying so d is valid answer
3) c and e both valid
4)only a is valid
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