Extra exam question E6B08
Subelement E6, CIRCUIT COMPONENTS· Group E6B
Which of the following is a Schottky barrier diode?
- A.Metal-semiconductor junction (correct answer)
- B.Electrolytic rectifier
- C.PIN junction
- D.Thermionic emission diode
WhyA Schottky barrier diode is a metal-semiconductor junction. A Schottky barrier diode is built as a metal-semiconductor junction rather than the semiconductor-to-semiconductor PN junction of an ordinary diode, and that different junction type is exactly what gives it its lower forward voltage drop and fast switching speed, answer A. It isn't an electrolytic rectifier, a PIN junction, or a thermionic (vacuum-tube-style) emission device, those are different, unrelated diode or device categories.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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