Patent ID: 7521766
Filing Date: 2009-04-21
Classification: H01L

Abstract:
1. A transistor comprising: an active structure integrally formed with a semiconductor substrate, the active structure comprising a central portion upwardly extending from the substrate, lateral portions horizontally extending from the central portion, and grooves formed at the lateral portions, the central portion serving as a channel region and the lateral portions serving as source/drain regions; an insulation layer pattern formed on the substrate to partially cover the active structure and to expose an upper face of the active structure, the insulation layer pattern having trenches partially exposing side surfaces of the central portion of the active structure; and a gate structure formed on the upper face of the active structure and the insulation layer pattern to partially enclose the active structure, wherein the source/drain regions overlie the grooves and wherein the trenches in the insulation layer pattern are filled with end portions of the gate structure.