Patent ID: 8610235

Claim:
A Schottky diode comprising: a semiconductor substrate of a first conductivity type; a semiconductor layer of the first conductivity type and being lightly doped formed on the semiconductor substrate; first and second trenches formed in the semiconductor layer, the first and second trenches being lined with a thin dielectric layer and being filled partially with only one trench conductor layer, remaining portions of the first and second trenches being filled with a first dielectric layer; and a Schottky metal layer formed on a top surface of the lightly doped semiconductor layer between the first trench and the second trench to form a Schottky junction, wherein the Schottky diode is formed with the Schottky metal layer as the anode and the lightly doped semiconductor layer between the first and second trenches as the cathode, and the trench conductor layer in each of the first and second trenches is electrically connected to the anode of the Schottky diode, the trench conductor layer in each of the first and second trenches being insulated by the first dielectric layer in the respective trenches and being physically isolated from the Schottky metal layer forming the anode of the Schottky diode.