Patent ID: 8124981

Claim:
A wide bandgap device comprising: a lightly doped layer of a first conductivity type having an active region and a termination region, said lightly doped layer having first and second opposite surfaces; at least two first regions of a second conductivity type opposite to said first conductivity type in said first surface of said lightly doped layer in said active region, the two first regions having a bottom and being isolated from one another by said lightly doped layer; at least two second regions of said first conductivity type, each vertically stacked under one of the first regions and positioned at least partially between the bottom of its respective said first region and said second surface of said lightly doped layer; and a first metal layer on said first surface of said lightly doped layer, said first metal layer and said first surface form a Schottky barrier where said first metal contacts areas of said first conductivity type; wherein said dopant concentration in said second region is greater than the dopant concentration in said lightly doped layer.