Patent ID: 9171751
Filing Date: 2015-10-27
Classification: H01L

Abstract:
1. A method for fabricating an edge termination structure, the method comprising: providing a substrate of a first conductivity type, the substrate having a first surface and a second surface; forming a first GaN epitaxial layer of the first conductivity type coupled to the first surface of the substrate; forming a second GaN epitaxial layer of a second conductivity type opposite to the first conductivity type, the second GaN epitaxial layer being coupled to the first GaN epitaxial layer; implanting ions into a first region of the second GaN epitaxial layer to electrically isolate a second region of the second GaN epitaxial layer from a third region of the second GaN epitaxial layer; and forming an active device coupled to the second region of the second GaN epitaxial layer; wherein the third region of the second GaN epitaxial layer comprises an edge termination structure.