DIODES INCLUDING MULTIPLE SCHOTTKY CONTACTS

In some aspects, a diode can include: a substrate and semiconductor layer of a first conductivity type, the semiconductor layer being disposed on the substrate and including a drift region; a shield region of a second conductivity type disposed in the semiconductor layer adjacent to the drift region; a first Schottky material disposed on at least a portion of the shield region and on a first portion of the drift region, the first Schottky material defining a first Schottky contact with an upper portion of the drift region; and a second Schottky material disposed on a second portion of the drift region, the second Schottky material being adjacent to the first Schottky material, the second Schottky material defining a second Schottky contact with the upper portion of the drift region, the first Schottky contact having a barrier height that is less than a barrier height of the second Schottky contact.