Patent ID: 9496401
Filing Date: 2016-11-15
CPC Classification: H01L

Claim Text:
1. A semiconductor structure comprising: a fin stack of, from bottom to top, a III-V compound semiconductor material fin portion, an insulating III-V compound material fin portion and a topmost III-V compound semiconductor material fin portion extending upwards from a surface of a bulk silicon substrate, wherein a dielectric material structure is present on each sidewall surface of said fin stack and each dielectric material structure has a topmost surface that is vertically offset and located at, or beneath, a bottommost surface of said topmost III-V compound semiconductor material fin portion; an insulating III-V compound layer straddling over a first portion of said topmost III-V compound semiconductor material fin portion; a III-V compound semiconductor layer on said insulating III-V compound layer; and a functional gate structure straddling over a portion of said III-V compound semiconductor layer, wherein a second portion of said topmost III-V compound semiconductor material fin portion is exposed.