Patent ID: 7541637

Claim:
A nonvolatile semiconductor storage element comprising: a semiconductor substrate having a source region, a drain region and an intermediate channel region; a control layer on a first portion of the channel region and insulated therefrom by a first insulating layer; a charge storage layer on a second portion of the channel region and insulated therefrom by a second insulating layer, wherein the second portion of the channel region has a source side adjacent to the source region and a drain side adjacent to the drain region, and wherein the charge storage layer has a source side charge storage layer and a drain side charge storage layer; a programming layer on the charge storage layer and insulated therefrom by a third insulating layer, wherein the programming layer has a source side programming layer and a drain side programming layer; a first interconnect layer electrically connecting the source side programming layer to the source region; and a second interconnect layer electrically connecting the drain side programming layer to the drain region.