SCHOTTKY BARRIER DIODE AND A METHOD OF MANUFACTURING THE SAME
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United States of America Patent
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Sep 21, 2017
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Feb 10, 2014
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Abstract
A Schottky metal is in Schottky-contact with a center portion of a surface of an epitaxial layer. A peripheral trench is formed by digging from the surface of the epitaxial layer on a boundary portion between an active region where the Schottky metal is in Schottky-contact with the surface of the epitaxial layer and a peripheral region outside of the active region in a surface layer portion of the epitaxial layer. An insulating film is formed on an entire area of inner wall surfaces of the peripheral trench. There is provided with a conductor which is connected to the Schottky metal and is opposed to the entire area of the inner wall surfaces of the peripheral trench via the insulating film in the peripheral trench.
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