Patent ID: 8134209
Filing Date: 2012-03-13
Classification: H01L

Abstract:
1. A multi-gate metal oxide silicon transistor, comprising: a silicon substrate comprising a convex portion between shallow trench regions; a dielectric portion over the convex portion; a silicon fin over the dielectric portion; a shallow trench isolation layer in the shallow trench isolation region, the upper surface of the shallow trench isolation layer being located below the upper surface of the convex portion; a laterally grown silicon portion on a side surface of the silicon fin in a source/drain region that is protruded laterally from the silicon fin in the source/drain region; a gate electrode provided over the silicon fin via a gate dielectric layer in a gate electrode region; first spacers adjacent to the side surfaces of the gate electrode; and second spacers adjacent to side surfaces of the convex portion in the source/drain region.