Schottky barrier diode and diode array

A diode array comprising a plurality of Schottky barrier diodes formed on one semiconductor substrate and connected to one another in parallel,

• wherein said plurality of Schottky barrier diodes include:
• a first semiconductor layer and a second semiconductor layer successively formed above said semiconductor substrate with a buffer layer disposed between said first and second semiconductor layers and said semiconductor substrate;
• a plurality of electrode pairs each corresponding to a pair of a Schottky electrode and an ohmic electrode formed on said second semiconductor layer and spaced from each other;
• a first insulating film formed on said second semiconductor layer for covering said plurality of electrode pairs;
• a drawing electrode formed on said first insulating film;
• and
• a back face electrode formed on a back face of said semiconductor substrate,
• said ohmic electrode of each of said plurality of electrode pairs is electrically connected to said back face electrode through a via penetrating through at least said buffer layer,
• said Schottky electrode of each of said plurality of electrode pairs is electrically connected to said drawing electrode, and
• wherein said Schottky electrode surrounds said ohmic electrode in each of said plurality of electrode pairs.