Patent ID: 8232558

Claim:
A Schottky diode, comprising: a silicon carbide drift region having a first conductivity type; a Schottky contact on the drift region; a plurality of junction barrier Schottky (JBS) regions at a surface of the drift region adjacent the Schottky contact, the plurality of JBS regions having a second conductivity type opposite the first conductivity type and having a first width and a first spacing between adjacent ones of the JBS regions; and a surge protection region at the surface of the drift region adjacent the Schottky contact, the surge protection region having a second width greater than the first width and comprising a plurality of surge protection subregions having the second conductivity type and each of the surge protection subregions having a third width less than the first width and having a second spacing between adjacent ones of the surge protection subregions that is less than the first spacing between adjacent ones of the JBS regions.