Patent ID: 8536043
Filing Date: 2013-09-17
Classification: H01L

Abstract:
1. A method to fabricate an electrical contact, comprising: providing a substrate comprised of a compound Group III-V semiconductor material having at least one electrically conducting doped region adjacent to a surface of the substrate; and fabricating the electrical contact to the at least one electrically conducting doped region by depositing a single crystal layer of germanium over the surface of the substrate so as to at least partially overlie the at least one electrically conducting doped region, converting the single crystal layer of germanium into a layer of amorphous germanium by implanting a dopant, forming a metal layer over exposed surfaces of the amorphous germanium layer, and performing a metal-induced crystallization process on the amorphous germanium layer having the overlying metal layer to convert the amorphous germanium layer to a crystalline germanium layer and to activate the implanted dopant.