Patent ID: 9406518
Filing Date: 2016-08-02
CPC Classification: H01L

Claim Text:
1. An integrated circuit device comprising: a group III-V compound semiconductor substrate including a fin structure extending therefrom such that the fin structure is an integral portion of the semiconductor substrate, wherein the group III-V compound semiconductor substrate includes a surface having a (100) crystal orientation adjacent the fin structure, wherein the fin structure has a top surface having a (100) crystallographic orientation and sidewall surfaces having a (110) crystallographic orientation, wherein the sidewall surfaces of the fin structure extend from the top surface of the fin structure to the surface of the group III-V compound semiconductor substrate and wherein the entire sidewall surfaces have the (110) crystallographic orientation extending from the top surface of the fin structure to the surface of the group III-V compound semiconductor substrate; an isolation feature surrounding the tin structure, wherein the isolation feature is in physical contact with only a lower portion of the sidewall surfaces of the fin structure; a gate structure traversing the fin structure, the gate structure traversing a source region and a drain region of the fin structure such that a channel region is defined between the source region and the drain region; and wherein: