Patent ID: 7615801

Claim:
A high voltage silicon carbide (SiC) device, comprising: a first SiC layer having a first conductivity type on a first surface of a voltage blocking SiC substrate having a second conductivity type; a first region of SiC on the first SiC layer and having the second conductivity type; a second region of SiC in the first SiC layer, having the first conductivity type and being adjacent to and spaced apart from the first region of SiC; a second SIC layer having the first conductivity type on a second surface of the voltage blocking SiC substrate; a third region of SiC on the second SiC layer and having the second conductivity type; a fourth region of SiC in the second SiC layer, having the first conductivity type and being adjacent to and spaced apart from the third region of SiC; and first and second contacts on the first and third regions of SiC, respectively, wherein sidewalls of the first region are not covered by the first SiC layer; and wherein sidewalls of the third region are not covered by the second SiC layer.