Patent ID: 8823140
Filing Date: 2014-09-02
Classification: H01L

Abstract:
1. A method for fabricating a vertical bipolar transistor, the method comprising: providing a III-nitride base structure of a first conductivity type; forming a III-nitride emitter structure of a second conductivity type having a first surface and a second surface, the second surface being substantially opposite the first surface, wherein: forming a spacer coupled to the sidewall of the III-nitride emitter structure and the exposed portion of the surface of the III-nitride base structure; and forming a base contact structure comprising a III-nitride material coupled to the spacer, the exposed portion of the surface of the III-nitride base structure, and the first dielectric layer, such that the first dielectric layer and the spacer are disposed between the base contact structure and the III-nitride emitter structure.