The cell comprises a substrate having a drain region and a source region.
An oxynitride layer is formed over the substrate. An embedded trap layer
is formed over the oxynitride layer. An injector layer is formed over the
embedded trap layer. A high dielectric constant layer is formed over the
injector layer. A polysilicon control gate formed over the high
dielectric constant layer. The cell can be formed in a planar
architecture or a two element, split channel, three-dimensional device.
The planar cell is formed with the high dielectric constant layer and the
control gate being formed over and substantially around three sides of
the embedded trap layer. The split channel device has a source line in
the substrate under each trench and a bit line on either side of the
trench.