Patent ID: 7445984
Filing Date: 2008-11-04
Classification: H01L,Y10S

Abstract:
1. A method of making a semiconductor nonvolatile memory device, comprising the sequential steps of: providing a substrate having a semiconductor layer having a first portion for non-volatile memory and a second portion exclusive of the first portion for devices other than non-volatile memory; forming a first dielectric layer on the semiconductor layer; performing a step of decoupled plasma nitridation on the first dielectric layer; forming a first plurality of nanoclusters over the first portion and a second plurality of nanoclusters over the second portion; removing the second plurality of nanoclusters prior to remote plasma nitridation of the plurality of nanoclusters in the first portion and forming a second dielectric layer over the first plurality of nanoclusters over the first portion, the second dielectric layer providing a control dielectric; and forming a conductive layer over the second dielectric layer to form a gate electrode.