Patent ID: 8039352

Claim:
A method for fabricating a nitrogen-face (N-face) nitride-based electronic device, comprising: using a thickness and a polarization induced electric field of a III-nitride interlayer, positioned between a III-nitride barrier layer and a III-nitride channel layer, to shift the III-nitride barrier layer's energy band with respect to the III-nitride channel layer's energy band by a pre-determined amount proportional to the thickness and the polarization induced electric field of the III-nitride interlayer, wherein: (1) both the III-nitride barrier layer and the III-nitride channel layer have a higher polarization coefficient than the III-nitride interlayer's polarization coefficient, (2) the III-nitride barrier layer confines channel electrons in the III-nitride channel layer, and (3) the III-nitride interlayer, the III-nitride barrier layer, and the III-nitride channel layer each have an N-face orientation.