Patent ID: 7511358
Filing Date: 2009-03-31
Classification: H01L

Abstract:
1. A nonvolatile memory device comprising: a fin type active region formed on a semiconductor substrate, a portion of the fin type active region protruding from the semiconductor substrate, the protruding portion of the fin type active region comprising a first side surface, a second side surface, and a top surface; a gate formed along the first side surface, the top surface, and the second side surface of the fin type active region; a pair of local charge storage layer patterns formed under the gate, and physically isolated from each other by an extending portion of the gate that extends from at least one of the first side surface and the second side surface of the fin type active region, wherein the pair of local charge storage layer patterns extends along the first side surface, the top surface, and the second side surface of the protruding fin type active region; a charge blocking layer interposed between the local charge storage patterns and the gate; a tunneling dielectric layer interposed between the local charge storage layer patterns and the active region for charge tunneling; and a gate dielectric layer extending between a side surface of the local charge storage layer pattern and the gate by being between the portion of the fin type active region protruding from the semiconductor substrate and the extending portion of the gate.