Which of the following is not true for a Schottky-Barrier Diode (SBD)?

• A. It is formed by bringing metal into contact with a moderately doped n-type semiconductor material.
• B. In the SBD, current is conducted by mainly by minority carriers.
• C. The forward voltage drop of a conducting SBD is lower than that of a pn-junction diode.
• D. SBD are used in the design of a special form of bipolar-transistor logic circuits