Patent ID: 7785996
Filing Date: 2010-08-31
Classification: H01L

Abstract:
1. A method of manufacturing a nonvolatile memory device, comprising: preparing a semiconductor substrate on which a source region, a drain region, and a channel region are formed; forming a silicon oxide layer on the channel region; forming a ruthenium layer having ruthenium atoms on the silicon oxide layer; forming a transition metal oxide layer on the ruthenium layer to form a resultant product comprising the substrate, the source region, the drain region, the channel region, the silicon oxide layer, the ruthenium layer, and the transition metal oxide layer; forming ruthenium trap particles that trap electrons in the transition metal oxide layer by annealing the resultant product, wherein the ruthenium atoms diffuse into the transition metal oxide layer to form the ruthenium trap particles in the transition metal oxide layer; and forming a gate electrode on the transition metal oxide layer.