Patent ID: 8742509
Filing Date: 2014-06-03
Classification: H01L

Abstract:
1. An apparatus comprising: a first isolation region formed in a substrate, wherein the first isolation region has a first non-vertical sidewall; a second isolation region formed in the substrate, wherein the second isolation region has a second non-vertical sidewall; a V-shaped groove formed in the substrate, wherein the V-shaped groove, the first non-vertical sidewall and the second non-vertical sidewall form a cloak-shaped recess in the substrate; a cloak-shaped active region formed in the cloak-shaped recess over the substrate, wherein the cloak-shaped active region has an upper portion protruding above a top surface of the isolation region, a first triangular region embedded in the first isolation region, a second triangular region embedded in the second isolation region and a V-shaped bottom portion, and wherein the cloak-shaped active region comprises: a gate electrode wrapping the channel of the cloak-shaped active region.