Patent ID: 9484462
Filing Date: 2016-11-01
CPC Classification: H01L

Claim Text:
1. A semiconductor device comprising: a first fin structure extending from a first substrate surface of a substrate and having a planar top surface and two opposing sidewalls wherein each sidewall has an upper portion and a lower portion, the lower portion contiguous with the upper portion, and wherein the upper portion is perpendicular to the first substrate surface and intersects the planar top surface of the first fin structure, and the lower portion being disposed at an angle between 85 degrees and 60 degrees from the first substrate surface and wherein the lower portion is further curved proximate the first substrate surface such that a slope of the lower portion continually decreases from the upper portion and a transition location to the first substrate surface, wherein the upper portion and lower portion interface at the transition location on the each sidewall; and an isolation structure having a top surface, the isolation structure being positioned between the first fin structure and an adjacent second fin structure, and wherein the top surface of the isolation structure is disposed above the transition location, wherein