Patent ID: 8716764

Claim:
A fin semiconductor device, comprising: a fin including a semiconductor layer formed on a substrate; an insulating material layer formed over the substrate and surrounding the fin, the insulating material layer having a thickness less than the thickness of the semiconductor layer; a source region portion and a drain region portion formed on the insulating material layer; and a first channel control region, a second channel control region and a channel region between the source region portion and the drain region portion, wherein the first channel control region is at a center of the semiconductor layer away from the edge and has a first conductivity type, wherein the second channel control region is formed along an edge of the semiconductor layer in a portion of the semiconductor layer that is not covered by the insulating material layer, the second channel control region having the first conductivity type, wherein the channel region is between the first channel control region and the second channel control region, adjoining the source region portion and the drain region portion, wherein the channel region, the source region portion and the drain region portion have a second conductivity type which is opposite to the first conductivity type.