Patent ID: 9391153
Filing Date: 2016-07-12
CPC Classification: H01L

Claim Text:
1. A semiconductor device comprising: a semiconductor substrate; a channel layer of at least a first III-V semiconductor compound above the semiconductor substrate; a gate stack structure above a first portion of the channel layer; a source region and a drain region above a second portion of the channel layer, the source and the drain (S/D) regions comprising at least a second III-V semiconductor compound; and a first metal contact structure above the S/D regions comprising a first metallic contact layer contacting the S/D regions, the first metallic contact layer comprising at least one metal-III-V semiconductor compound, wherein the at least one metal-III-V semiconductor compound in the first metallic contact layer is a ternary, quaternary or quinary material comprising at least one metal and the second III-V semiconductor compound in the S/D regions.