A method for manufacturing a memory device having a metal nanocrystal
charge storage structure. A substrate is provided and a first layer of
dielectric material is grown on the substrate. An absorption layer is
formed on the first layer of dielectric material. The absorption layer
includes a plurality of titanium atoms bonded to the first layer of
dielectric material, a nitrogen atom bonded to each titanium atom, and at
least one ligand bonded to the nitrogen atom. The at least one ligand is
removed from the nitrogen atoms to form nucleation centers. A metal such
as tungsten is bonded to the nucleation centers to form metallic islands.
A dielectric material is formed on the nucleation centers and annealed to
form a nanocrystal layer. A control oxide is formed over the nanocrystal
layer and a gate electrode is formed on the control oxide.