Patent ID: 7994612

Claim:
A structure comprising: a semiconducting fin, having a longitudinal axis, disposed on an insulator layer, said semiconducting fin comprising a top surface, and first side and second side surfaces separated by a width, which is orthogonal in direction to said longitudinal axis; and a gate conductor structure formed over a portion of said top surface and said first and second side surfaces of said semiconducting fin; wherein said semiconducting fin comprises: a channel region below said gate conductor structure; and source and drain regions separated along said longitudinal axis by said channel region and each of said source and drain regions being adjacent said channel region, wherein said source and drain regions comprise portions of said semiconducting fin that are not covered by said gate conductor structure, wherein each of said source and drain regions comprises asymmetric impurity concentrations across said width of said semiconducting fin, such that a first impurity concentration at said first side surface and a second impurity concentration at said second side surface of said semiconducting fin differ.